Dr Mark W Larson, MD - Medicare Family Practice in Ellensburg, WA

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Dr Mark W Larson, MD is a medicare enrolled "Specialist" physician in Ellensburg, Washington. He went to University Of Kansas School Of Med (kc/wich/sal) and graduated in 1989 and has 36 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Rural Physicians Group-pannu Pllc and his current practice location is 716 E Manitoba Ave, Ellensburg, Washington. You can reach out to his office (for appointments etc.) via phone at (509) 925-3151.

Dr Mark W Larson is licensed to practice in Washington (license number 2520900035733) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1194784090.

Contact Information

Dr Mark W Larson, MD
716 E Manitoba Ave,
Ellensburg, WA 98926-3842
(509) 925-3151
Not Available

Map and Direction




Physician's Profile

Full NameDr Mark W Larson
GenderMale
SpecialityFamily Practice
Experience36 Years
Location716 E Manitoba Ave, Ellensburg, Washington
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Mark W Larson attended and graduated from University Of Kansas School Of Med (kc/wich/sal) in 1989
  NPI Data:
  • NPI Number: 1194784090
  • Provider Enumeration Date: 03/20/2006
  • Last Update Date: 05/15/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 8628114535
  • Enrollment ID: I20091007000327

Medical Identifiers

Medical identifiers for Dr Mark W Larson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1194784090NPI-NPPES
8219073MedicaidWA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine MD00035733 (Washington)Secondary
174400000XSpecialist 2520900035733 (Washington)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Kittitas Valley Community HospitalEllensburg, WAHospital
Virginia Mason Medical CenterSeattle, WAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Rural Physicians Group-pannu Pllc0345467486103

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Mark W Larson allows following entities to bill medicare on his behalf.
Entity NameKittitas County Public Hospital Dist 1
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356375307
PECOS PAC ID: 0547179608
Enrollment ID: O20040213000046
Entity NameRural Physicians Group-pannu Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1891236584
PECOS PAC ID: 0345467486
Enrollment ID: O20140909000184

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Mark W Larson is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Mark W Larson, MD
716 E Manitoba Ave,
Ellensburg, WA 98926-3842

Ph: (509) 925-3151		Dr Mark W Larson, MD
716 E Manitoba Ave,
Ellensburg, WA 98926-3842

Ph: (509) 925-3151

Reviews and Comments



Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.