A Medicare Benefit community dispute between Optum and Humana in Washington state is pushing seniors into rival Medicare plans — together with these owned by Optum’s company father or mother UnitedHealth — in what antitrust consultants say might be one of many first high-profile cases of a supplier making a community willpower to hurt a competitor of its insurance coverage father or mother firm.
In November, Washington seniors in Humana MA plans started receiving notices that Optum would now not be in-network efficient Jan. 1. The approaching break up has thrown sure markets within the Evergreen State into disarray.
Humana members came upon their Optum medical doctors can be going out of community simply earlier than Medicare open enrollment for 2026, kicking off a cascade of protection modifications in areas the place Optum has an outsized presence.
“It’s been disruptive,” stated Marni Mills, a Medicare gross sales agent positioned in Mukilteo, Washington.
Mills stated her affected Humana shoppers have all switched to the one different MA plan overlaying Optum that she sells: UnitedHealthcare.
“My aim as a dealer is to maintain my shoppers with their medical doctors. So we’re switching plans from Humana to no matter service is important to ensure that sufferers to stick with their medical doctors — that’s a very powerful factor,” Mills stated.
Clashes between insurers and suppliers over contract phrases are intensifying, and sometimes depart sufferers caught within the center. However this dispute, between two giants within the healthcare sector, highlights bigger considerations about anticompetitive ripple results from rising consolidation between well being insurers and suppliers — and the way they could be chipping away at fee integrity within the standard MA program overlaying 35 million seniors.
“As a result of [Optum] is the biggest employer of suppliers, they beautiful a lot typically can do no matter they need. They’ll say to Humana, ‘Oh, not going to pay us what we would like? Okay, bye.’ And that simply drives individuals into the UnitedHealthcare product, which advantages the general firm,” Danielle Roberts, a Medicare insurance coverage agent and founding father of nationwide brokerage Boomer Advantages, stated.
Healthcare corporations argue that proudly owning each insurer and supplier companies ends in higher care coordination and operational efficiencies, decreasing prices whereas bettering well being outcomes.
However the overlap between UnitedHealthcare and Optum is a key fear of federal regulators, who’ve just lately taken better discover of the sprawling conglomerates created after years of largely unchecked vertical integration. One main concern in mergers between suppliers and insurers is foreclosures — when an organization is ready to block rivals’ entry to a healthcare market by solely coping with its personal companies.
That appears lots like what’s enjoying out in Washington, some consultants stated.
“That is one thing that has been a conceptual concern, and hasn’t essentially been borne out, or we haven’t had good information about this being borne out,” stated Chris Whaley, an affiliate professor of well being providers, coverage and apply at Brown College’s Faculty of Public Well being.
However “this might be a case the place the conceptual concern is definitely affecting how sufferers are getting care,” Whaley stated. “I believe this can be a prime order concern for the Medicare program in addition to for antitrust regulators.”
Humana’s headquarters in Louisville, Ky., pictured on Oct. 3, 2014.
Neiu20001 through Getty Photographs
Optum and Humana at loggerheads
Notices to Medicare seniors sharing that Optum would now not be in-network with Humana in 2026 sparked concern for a lot of in Washington.
Sixty-three of Optum’s some 1,600 major and specialty care clinics are within the state. In the meantime, Humana is Washington’s second-largest MA payer after UnitedHealthcare, overlaying nearly 120,000 seniors, in accordance with CMS information.
Humana confirmed the contract dispute with Healthcare Dive, although the corporate burdened that discussions are ongoing and will nonetheless end in a deal.
“We’re engaged in good-faith discussions and have put ahead proposals that may place Optum at charges which are honest, cheap and market-based,” Mark Taylor, Humana’s director of company communications, stated over e mail. “Medicare beneficiaries deserve selection and a good, aggressive market. We’re dedicated to advocating for these values.”
Optum didn’t absolutely reply to an emailed listing of questions for this story. Nevertheless, a spokesperson for the supplier stated Optum modified its relationships with MA carriers for 2026 as a part of its dedication to “delivering inexpensive, high-quality care.”
It’s the newest in a flurry of latest contract disagreements between well being insurers and suppliers, as suppliers search greater charges, citing the rising prices of doing enterprise, and insurers attempt to hold a deal with on escalating spend.
Disputes involving MA plans are significantly intensifying, in accordance with information from FTI Consulting. This yr noticed 46 contract disputes within the first three quarters alone, an acceleration from earlier within the decade that suppliers say stems from their refusal to simply accept below-market charges or onerous phrases like oppressive prior authorizations.
However a couple of issues differentiate this contract disagreement from others which have trickled into the general public eye.
For one, Optum is owned by UnitedHealth, a colossus within the healthcare area with greater than $400 billion in annual income. UnitedHealth gives medical health insurance to greater than 50 million Individuals by means of UnitedHealthcare and medical providers in 20 states by means of Optum, its huge well being providers division.
Optum’s care supply unit, Optum Well being, is the biggest doctor enterprise within the U.S., with roughly 90,000 medical doctors. About 10% are straight employed, which provides the corporate uncommonly highly effective leverage to barter greater charges in contract negotiations with insurers, consultants say.
However the dispute is generally atypical due to how Optum turning its again on Humana may benefit Optum’s sister firm, UnitedHealthcare.
“You nearly do a little bit of a double take,” stated Brown College’s Whaley. “You could have an insurer having a community and contract dispute with a big group of suppliers by means of Optum. However then that very same group of suppliers is owned by a competing insurer. The potential concern is that these contract selections usually are not simply based mostly on fee for the providers themselves, however probably influenced by competitors for MA members.”
The Optum spokesperson refuted that its community selections are influenced by different issues past its supplier enterprise.
“Optum’s relationships with any insurance coverage plan are decided solely by Optum and native medical operations based mostly on tips on how to greatest serve space sufferers and permit physicians to deal with what they’re licensed and skilled to do,” the spokesperson stated. “We’ll proceed supporting our Washington sufferers by means of this transition to allow them to preserve continuity of care by both selecting a distinct well being plan or totally different supplier.”
On the state stage, it’s too early to say whether or not the Optum-Humana spat spurred a lot of Humana members to change to different plans, together with UnitedHealthcare. Open enrollment for 2026 Medicare plans ended Dec. 7, and it will likely be months till insurers begin reporting enrollment figures.
However in breakups between payers and suppliers, sufferers — particularly seniors — nearly at all times facet with their suppliers, in accordance with Medicare brokers.
The potential concern is that these contract selections usually are not simply based mostly on fee for the providers themselves, however probably influenced by competitors for MA members.

Chris Whaley
Affiliate professor of well being providers, coverage and apply at Brown College’s Faculty of Public Well being
Roberts with Boomer Advantages estimated that simply 2 in 10 seniors would stick with their insurer if their physicians had been set to exit of community. The remaining 8 would change insurers as a substitute.
“When you’ve got any individual with a number of well being situations, that are extra prevalent the older you get, these individuals are lots much less more likely to wish to depart their physician behind,” Roberts stated. On this case, “if [Humana members] wish to hold these medical doctors, they’re going to be pushed principally to UnitedHealthcare plans,” she stated.
Humana stated it might not touch upon attainable membership motion. However the insurer plans to cowl Optum care at in-network charges for affected MA members by means of the start of April, in accordance with a discover of the community change reviewed by Healthcare Dive.
The discover says the non permanent protection interval is to reduce disruptions to care, nevertheless it may be an indication that Humana is considering member retention.
Seniors already on MA can have one other alternative to change their protection throughout a separate open enrollment interval, which runs from Jan. 1 by means of March 31. Theoretically, if a Humana member modified plans throughout open enrollment this fall to maintain Optum in community — and Optum and Humana attain a contract settlement earlier than March 31 — that member may then change again to Humana, with none disruption to their entry to Optum.
Nonetheless, if any enrollment modifications stick, they may additional entrench UnitedHealthcare’s dominance in Washington’s Medicare market. The insurer covers greater than one-third of the state’s MA enrollees, in accordance with a report from the American Medical Affiliation final yr.
But it surely’s extra essential to have a look at the influence on native markets the place Optum is a serious supplier, in accordance with a number of antitrust consultants.
For instance, Medicare brokers serving Spokane County — the place Optum has no clinics — are conscious of the community spat, nevertheless it doesn’t come up of their conversations with shoppers, in accordance with Charles Fletcher, a dealer within the county.
“I do know it’s a problem, however the Optum stuff hasn’t impacted me,” Fletcher stated.
However notably, the county the place Optum has probably the most dominant management of major care in your complete U.S. is in Washington. If you happen to drive 5 hours west from Spokane, you’ll come throughout a area the place the Humana-Optum break up appears to be turning the Medicare market the other way up.

A view of Everett, Wash., the biggest city in Snohomish County.
Carter Dayne through Getty Photographs
‘Optum is round right here in every single place’
Tucked beside the Puget Sound in western Washington, Snohomish County lies below a near-constant sheet of clouds from the Pacific Ocean’s marine layer, blanketing its lush evergreen forests, rocky saltwater seashores and rolling hills of farmland.
Snohomish is the third most populous county in Washington state, with about 840,000 residents and rising. It’s a gorgeous choice for individuals transferring to the Pacific Northwest, with its pure magnificence and small-town attraction paired with easy accessibility to Seattle a brief drive to the south.
Snohomish additionally seemed enticing to Optum. Within the late 2010s, the supplier entered the county by means of a fast one-two punch of acquisitions — the Everett Clinic by means of its bigger purchase of DaVita Medical Group in 2017, and the Polyclinic by means of a standalone acquisition in 2018.
Optum emerged from the offers as a power to be reckoned with.
By 2023, Optum managed nearly 45% of Snohomish’s major care market, in accordance with a first-of-its-kind research of insurer supplier possession revealed this summer season. Compared, Optum holds about 2.7% of the first care market nationwide.
And of Optum’s major, specialty and walk-in clinics in Washington state, 38 — greater than half — are in Snohomish alone.
The corporate’s dominance in Snohomish means it’s tough for residents within the space to search out different physicians — and creates a major incentive for these dealing with the lack of in-network entry to change plans, consultants say.
Notices from Optum and Humana sharing the community change with affected sufferers brought on vital hullabaloo. Over November and early December, Medicare brokers had been inundated with calls from fearful seniors confronted with searching for a brand new MA plan. Some held informational conferences for seniors to return, ask questions and find out about alternate choices, in accordance with two seniors who attended such occasions.
They realized there was just one actual various for industrial customers searching for complete major care. One dealer, who requested to stay nameless for concern of tainting enterprise relationships, modified their voicemail message within the days main as much as the tip of open enrollment, sharing that choice for seniors who weren’t in a position to attain them on the telephone.
“I’m so sorry that Optum has left Humana however we are going to get all of it found out. I write UnitedHealthcare plans as properly, so we will get you transferred over to a few plans that look pretty related,” the dealer stated within the message heard by Healthcare Dive on Dec. 5.
Sandy Koffron, a 74-year-old dwelling in rural Snohomish city Stanwood, switched from Humana to UnitedHealthcare to retain entry to Optum in 2026.
It was a tough choice, she stated. Koffron and her husband Louis, 79, have been Humana MA members for seven years, and love the protection. Humana coated their payments when Koffron went to the emergency room. It coated their payments when she wanted gallbladder surgical procedure. It coated their payments when Louis fought a bout of sepsis, a harmful immune response that may observe an an infection.
But when Koffron hadn’t signed up for UnitedHealthcare, she and her husband must change into sufferers on the closest non-Optum physician’s workplace, a 20-mile drive away in Mount Vernon. It’s a frightening prospect, and one which frightened her when she acquired discover of the protection change.
“It has been very disturbing. I don’t wish to get a brand new physician. And Optum is handy for us,” Koffron stated. “Honestly, Optum is round right here in every single place.”
UnitedHealth’s tightening grip
UnitedHealthcare is equally dominant in Snohomish’s Medicare market, suggesting that sources might have been focused into that exact county to provide the businesses’ father or mother, UnitedHealth, immense sway, consultants say.
UnitedHealthcare managed nearly 49% of Snohomish’s MA market following the MA open enrollment interval this April, in accordance with an evaluation of Medicare information by Healthcare Dive.
The runner-up? Humana, which holds 25% — roughly half of UnitedHealthcare’s share, and a proportion that might shrink if Humana loses members to UnitedHealthcare subsequent yr.
UnitedHealthcare has cemented its maintain on the Snohomish MA market
Insurers’ Medicare Benefit market share in Snohomish County, 2016-2025
UnitedHealthcare has held the biggest share of Snohomish’s MA marketplace for no less than the previous decade. In 2016 — the yr earlier than Optum’s proposed acquisitions of the Everett Clinic and the Polyclinic had been introduced — UnitedHealthcare managed nearly 36%.
UnitedHealthcare’s intensive presence in Snohomish might have made the county a gorgeous space to additionally put money into Optum, stated Loren Adler, the affiliate director of the Brookings Establishment’s Heart on Well being Coverage.
It’s a “clear potential win” for UnitedHealth, he stated. “If United can steal a much bigger and larger market share, then they’ll hike up premiums and take larger income there.”
UnitedHealth didn’t reply to questions on its progress technique and market management in Snohomish.
However insurers are inclined to pursue vertical consolidation in areas the place Medicare seniors are additionally prevalent, in accordance with a research Adler authored this summer season. Shopping for up physician’s workplaces in these areas gives a chance to additionally develop their income in MA, Adler defined.

The Everett Clinic in Marysville, previous to the group’s rebranding as Optum Care Washington.
Within the privatized Medicare program, the federal government pays non-public medical health insurance corporations a set price per enrollee. The aim is to incentivize insurers to higher handle care and management prices, hopefully saving Medicare cash whereas bettering members’ well being.
However that fee construction additionally introduces vital alternatives for gaming. MA adjusts funds to plans greater or decrease based mostly on an enrollees’ well being standing. Consequently, insurers are incentivized to magnify how sick their members are to garner greater funds, a apply known as upcoding.
Exaggerating will get simpler once you make use of the physician inspecting your members, consultants say. Analysis has discovered that upcoding will increase with vertical integration: Supplier possession is related to danger scores which are 16% greater than in conventional Medicare, in comparison with a mean of 6% amongst all different MA plans, in accordance with a research revealed in 2020.
If United can steal a much bigger and larger market share, then they’ll hike up premiums and take larger income.

Loren Adler
Affiliate director, Brookings Establishment’s Heart on Well being Coverage
Vertical integration additionally permits insurers to sidestep guidelines meant to stop them from limiting members’ medical care so as to revenue.
In MA, plans should spend no less than 85% of their members’ premiums on medical prices, mirrored in a metric known as the medical loss ratio, or MLR. However by steering sufferers towards owned suppliers, an insurer can basically pay itself for offering the service — enabling the corporate to maintain a better share of members’ premiums by translating them into income in one other division.
The insurer can then report these premiums had been spent on affected person care, driving its MLR into acceptable bounds though these premiums remained in-house.
UnitedHealth didn’t reply to questions concerning its vertical integration technique, together with whether or not it’s pushed by the potential to recreation Medicare fee methods and spending necessities.
However “this vertical integration allows regulatory evasion,” stated Hayden Rooke-Ley, a senior healthcare fellow on the American Financial Liberties Venture who research consolidation between insurers and suppliers.
“We’ve seen how central danger adjustment is to United’s playbook. That, and different potential regulatory constraints like MLR necessities, may be gamed once you see this sort of integration,” Rooke-Ley stated.
‘We can not do something’
Snohomish is a regarding vignette of what can occur in extremely concentrated markets when an insurer and a supplier disagree on charges, however the supplier’s father or mother firm wins whether or not it stays in or leaves that insurer’s community, in accordance with antitrust consultants.
Tim Smolen, a supervisor within the Shopper Safety Division of Washington’s Workplace of the Insurance coverage Commissioner, stated his company is conscious of pernicious results from vertical consolidation within the state however doesn’t have the identical instruments to deal with it as federal regulators.
“We’re very involved about this sort of integration and the way in which that the plans are utilizing this leverage that they’ve,” Smolen stated. “However by way of our statutory authority, we can not do something to control their conduct.”
UnitedHealth is presently dealing with prison and civil investigations by the Division of Justice over considerations that the corporate is profiteering from its management over the healthcare business, together with by means of the connection between UnitedHealthcare and Optum.

Stephen Hemsley, CEO of UnitedHealth Group, speaks at a information convention in Southfield, Mich., on April 29, 2014.
AP
Regulatory scrutiny has added onto a sea of latest troubles for UnitedHealth, together with a tsunami of medical prices shrinking the profitability of its medical health insurance division. The MA market is presently present process a contraction as main payers cut back choices, rework plan designs and take different steps to enhance margins.
UnitedHealthcare expects to lose roughly 1 million MA members subsequent yr consequently, Tim Noel, the insurer’s CEO, stated on a 3rd quarter earnings name in October.
As such, it’s attention-grabbing timing for a transfer that, inadvertently or not, appears set to bump the payer’s membership, even minimally. There’s additionally the possibility that Optum may lose income if a contract settlement isn’t reached and sufferers who stay with Humana cease going to its clinics within the Pacific Northwest.
However UnitedHealth wouldn’t be doing this if it thought it might result in decrease income, consultants stated.
“Most practices can’t function with only one insurer’s sufferers. However the danger of foreclosures right here is greater the extra dominant of a place they’ve. So it’s logical that you simply’re going to see this in areas like Snohomish County,” Brookings’ Adler stated.
It’s unclear whether or not related dynamics are enjoying out in different counties the place Optum has a large presence, similar to Contra Costa County, California, the place Optum controls greater than 40% of the first care market; or Clark County, Nevada, the place Optum controls nearly 36%.
Optum was near going out of community with Humana MA plans for 2026 in Texas as properly, however the two corporations reached phrases earlier than the contract’s expiration on the finish of December, in accordance with dealer sources, which Humana confirmed.
Optum and Humana should be capable of attain such an settlement in Washington, even when negotiations bleed into 2026. However even when they do, the contract dispute has already pressured Snohomish seniors — torn between loyalty to their physicians and a need to stick with the Medicare service they belief — to make tough selections.
Koffron, the senior in Stanwood, was saddened however not stunned when her dealer advised her that Optum and UnitedHealthcare are owned by the identical firm.
“At that time you’re considering ‘Okay, it’s not about us any extra,’” Koffron stated. “I at all times felt like Humana was about us. They did one of the best for us — they paid the payments.”
Although Koffron finds consolation in understanding she’ll be capable of hold her medical doctors subsequent yr since she switched to UnitedHealthcare, she’s fearful about coping with a brand new insurance coverage firm. Particularly, Koffron’s husband wants his blood checked each two months as a consequence of his synthetic coronary heart valve. She doesn’t know whether or not that’ll be coated by their new UnitedHealthcare plan. However leaving Optum wasn’t an choice.
“Once you become older you don’t like change,” Koffron stated. “However I made the choice that I needed to change. I didn’t really feel like I had a selection.”
Visuals Editor Shaun Lucas contributed to this story.