- MM3TPA LLCM3TPA
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- MMacy's (Daly City)J1345
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Magellan Health01260ELIGIBILITY - M
MagnaCare11303ELIGIBILITY - MMain Street America Group America AssuranceJ1837
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Maine MedicaidSKME0ELIGIBILITY - MMajor League Baseball 8J1082
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Managed Care Services35162 - M
Managed DentalGuardGCBPJ - M
Managed Health Networks (MHN - Non Behavioral Health Services)22771ELIGIBILITY - MManaged Healthcare Associates (MHCA)36312
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Managed Provider Alliance - Custom Provider Network80900 - M
ManhattanLife86253ELIGIBILITY - MManhattanLife Supplemental Medical Expense Plan98586
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MAPFRE5251ELIGIBILITY - M
March Vision Care52461ELIGIBILITY - MMaricopa Health Plan09908
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Marin Headlands Medical Group77304 - M
Marpai Health35245ELIGIBILITY - M
Marrick Mement Finance20805 - M
Martin's Point53275ELIGIBILITY - M
Maryland Medicare Part A12010ELIGIBILITY - M
Maryland Physicians Care76498ELIGIBILITY - M
Maryland Public Behavioral Health System (PBHS)BHOMDELIGIBILITY - M
Mashantucket Pequot Tribal Nation37121 - M
Mass Advantage86220ELIGIBILITY - M
Mass General Brigham Health Plan04293ELIGIBILITY - MMassachusetts Bay Insurance CompanyJ1689
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Massachusetts Behavioral Health PartnershipBHOMAELIGIBILITY - MMassachusetts Laborers' Benefit FundsZP372
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Masters, Mates, and Pilots PlanMMPHB - MMatheson TruckingJ1736
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Maven ClinicMAVEN - MMaxim Crane WorksJ1083
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Mayo Clinic Recovery and Claims Services41193 - M
MBA Benefit Administrators83028 - MMcDonald's McOpCoJ1084
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McLaren Community – Commercial HMO/POS38338ELIGIBILITY - M
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McLaren Medicaid/Healthy Michigan Plan3833CELIGIBILITY - M
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McLaren Medicare Supplemental3833SELIGIBILITY - M
MCNA Dental65030ELIGIBILITY - M
MCSL0170ELIGIBILITY - MMD Anderson Physician NetworkMDAPN
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MDsaveMDSAV - M
MDwise (Healthy Indiana Plan)3135MELIGIBILITY - M
MDwise (Hoosier Healthwise)3519MELIGIBILITY - MMDWise Exchange11173ELIGIBILITY
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MDwise Healthy Indiana Plan11172ELIGIBILITY - M
MDwise Medicare AdvantageMDADV - MMeadowbrook Insurance GroupJ1478
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Med Point Management Prospect (MPM)MPM16 - M
MedBen74323ELIGIBILITY - M
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MedCore Health Plan31057 - M
MedCost56205ELIGIBILITY - M
MedCost Benefit Services56162ELIGIBILITY - M
Medequip IncMQ027 - MMedFocus95321
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Medi-Cal Dental94146ELIGIBILITY - M
Medica94265ELIGIBILITY - M
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Medica Health Plan Solutions71890ELIGIBILITY - M
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Medicaid MichiganD00111ELIGIBILITY - MMedicaid Michigan - BCCPSKMI1
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Medicaid MinnesotaDPWMNELIGIBILITY - M
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Medical Associates Health Plan Health ChoicesMASHPELIGIBILITY - M
Medical Associates Health PlansMAHC1ELIGIBILITY - MMedical Control9043P
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Medical Mutual29076ELIGIBILITY - MMedical Network of Colorado SpringsCSMED
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Medical Outcome IndicatorsMOI01 - MMedical Service Initiative Orange County12057
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MedicareCMSELIGIBILITY - M
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Medicare Durable Medical Equipment Regional Carrier Jurisdiction A16013ELIGIBILITY - M
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Medicare Florida Part A09101ELIGIBILITY - M
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Medicare Michigan Part A08201ELIGIBILITY - M
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Medicare Minnesota Part A06201ELIGIBILITY - M
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Medicare Wyoming Part B03602ELIGIBILITY - MMediChoice Independent Practice AssociationAMM11
- MMedicusSTAT, LLCE2712
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MediStreamsMEDISTREAMS - MMediview CMSEB UBUMSEB
- MMediview Galveston County Indigent CareGCIHC
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MedLogix Managed Service Organization - Americo Independent Practice AssociationMLAMR - M
MedMutual Protect73066ELIGIBILITY - M
MedPartners412MP - M
MedPartners Administrative Services441MP - M
MedPartners Administrative Services (Indiana)35205 - MMedpay First OneMP001
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MedRiskJ1956 - M
MedSolutions Incorporated (Evicore)62160 - M
MedStar Family Choice District of ColumbiaRP062ELIGIBILITY - M
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MedStar Health Plan10845ELIGIBILITY - MMedxoomMX001
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MEMIC11030 - MMEMIC – Workers CompensationJZQJK
- MMemorial Hermann Bundle ProgramMHB123
- M
Memorial Hermann Health Insurance CompanyMHHNP - MMemorial Medical Center87166
- MMemorialCare Independent Physicians33010
- M
MemorialCare Medical FoundationMMFMC - M
MemorialCare Medical Foundation (Cap Services)MMFCS - M
MemorialCare Medical Foundation (UC Irvine)MMFUC - M
MemorialCare Select Health Plan46187 - M
MemorialCare Select Health Plan EncountersE4618 - M
Mendota Insurance Company33650 - M
Mental Health Consultants37050 - MMercalis56155
- M
Merchants Benefit Administration86087 - M
Merchants Benefit AdministrationIHS24 - M
Merchants Benefit AdministrationMBAM1 - MMercy Benefit Administrators37264
- M
Mercy Care ACC-RBHA33628ELIGIBILITY - M
Mercy Care ArizonaAZM01ELIGIBILITY - M
Mercy Care Plan (AZ Health Care Cost Containment System)86052ELIGIBILITY - MMercy Provider Network43185
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Meridian (Illinois)13189ELIGIBILITY - M
Meridian (Michigan)MHPMIELIGIBILITY - M
Meridian PACE SolutionsM7701 - M
Meritage Medical Network – Central ValleyFCMA1 - M
Meritage Medical Network – NorCal IP097 - M
Meritain Health41124ELIGIBILITY - MMERP Administration ServicesMERP1
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MetLife Dental Family10134ELIGIBILITY - M
MetroPlusHealth13265ELIGIBILITY - MMetropolitan CouncilJ1355
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- MMichigan Laborers’ Fringe Benefit FundsA1432ELIGIBILITY
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- M
Mid America Associates Incorporated37281 - M
Midlands Choice47080 - MMidsouth Mutual Insurance CompanyJ1622
- MMidwest DrywallJ1119
- M
Midwest Family Mutual (Auto Only)C1051 - MMidwest Family Mutual Insurance CompanyJ1685
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- M
Midwest Operating Engineers Fringe Benefit FundsMW150ELIGIBILITY - M
Midwest Operating Engineers Welfare Fund45979 - MMidwest Public Risk Management AssociationIHS23
- MMillard RefrigeratedJ1482
- M
Millette Administrators Inc. (Michigan)MAI60 - M
Millette Administrators, Inc.MAI58 - M
Mills Peninsula Medical GroupMPMG1 - MMinnesota Counties Insurance TrustJ1351
- M
Minnesota Department of HealthMNDH1 - MMinnesota Department of Labor and Industry ClaimsJ1436
- MMinnesota Power46484
- M
MinuteMen OhioComp26300 - M
Mirra Health Care611850001 - MMishe HealthMISHE
- M
Mission Community IPA Medical GroupMPM07 - M
Mississippi CHIP10140ELIGIBILITY - MMississippi Medicaid Medicare Advantage Crossovers12K18
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Mississippi Physicians Care Network64084 - M
Missoula County Medical Benefits37275 - MMitchell Energy and DevelopmentJ1085
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- M
MMMPREMDELIGIBILITY - M
MMM HealthcareL0210ELIGIBILITY - M
MMM Multihealth660653763ELIGIBILITY - MMMO HealthSX1093
- M
Moda Health Plan13350ELIGIBILITY - M
ModivcareMODIV - M
Molina Complete Care Virginia DSNPMCC02ELIGIBILITY - M
Molina Healthcare - Affinity by Molina Healthcare16146ELIGIBILITY - MMolina Healthcare - New Mexico MedicaidMLNNMELIGIBILITY
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Molina HealthCare ArizonaA4353ELIGIBILITY - M
Molina Healthcare California38333ELIGIBILITY - M
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Molina HealthCare Idaho61799ELIGIBILITY - MMolina Healthcare Illinois20934ELIGIBILITY
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Molina Healthcare MichiganMLNMIELIGIBILITY - M
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Molina Healthcare New MexicoCIMSELIGIBILITY - M
Molina Healthcare of IowaMLNIAELIGIBILITY - M
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Molina Healthcare of Mississippi77010ELIGIBILITY - M
Molina HealthCare Ohio20149ELIGIBILITY - M
Molina Healthcare South Carolina46299ELIGIBILITY - M
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Molina HealthCare Washington38336ELIGIBILITY - M
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Molina Ohio Medicaid Managed Care Entity0007316ELIGIBILITY - M
Momentum TPAMOMTM - MMonitor Life Insurance01759ELIGIBILITY
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Montefiore Contract Management Organization13174 - MMontgomeryJ1424
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Montgomery County Self Insurance ProgramJ1890 - MMontgomery County TexasA0179
- MMonument Administrators Cornerstone CompensationJ1530
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- MMorris Material HandlingJ1086
- MMorrison Healthcare IncorporatedJ1087
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Motion Picture Industry Pension and Health PlansMPI01 - M
MotivHealthU7632 - M
Mount Carmel MediGold10800ELIGIBILITY - M
Mount Sinai Eldercare R3492 - M
Mountain Health Co-opMHC01ELIGIBILITY - M
Movedocs.com llcLW021 - M
MPE Employee Benefit Services Incorporated37233 - MMPower BundleSTXB99
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MS Administrative Services IHS42 - M
MSA Care Guard20572 - M
MultiCare Connected CareRP036 - MMultiCare PACER3457
- MMultiPlan Incorporated9048P
- MMultiplan New Orleans Division72099
- M
Multnomah CountyMLTOT - MMunford IncorporatedJ1088
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Municipal Health Benefit Program81883ELIGIBILITY - M
Mutual Assurance Administrators37256ELIGIBILITY - M
Mutual Health Services34192ELIGIBILITY - M
Mutual of Omaha71412ELIGIBILITY - M
MVP Health Care14165ELIGIBILITY - M
MVP Health Care141650868ELIGIBILITY - M
My Choice Wisconsin27004 - MMy Family Medical Group33020
- M
MyTruAdvantageMTAMA