Mark W Larson, M.D.

Primary specialty

SpecialistTaxonomy code 174400000X

License

2520900035733 Issued in WA

Practice address

716 E Manitoba Ave
Ellensburg, WA 98926-3842

Phone

(509) 925-3151

NPI assigned

Mar 20, 2006

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in WA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Family Practice

Education

University of Kansas School of Med (KC/Wich/Sal), 1989

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Rural Physicians Group-Pannu PLLCGroup PAC ID 0345467486, 141 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Kittitas Valley Community Hospital Hospital, Ellensburg, WA, CCN 501333
• Virginia Mason Medical Center Hospital, Seattle, WA, CCN 500005

Merit-based Incentive Payment System (MIPS)

Final score

80.91 of 100Reported as group

Quality

66.6

Promoting interoperability

100

Improvement activities

40

Cost

69.77

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mlarson@kittitasvalleyhealthcare.cernerdirect.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Rural Physicians Group-Pannu PLLC

  • Hospitalist Physician
  • Greenwood Village, CO
  • NPI 1891236584

  Family Medicine, WA

  Medicare reassignment Care Compare group NPD
• Kittitas County Public Hospital Dist 1

  • Critical Access Hospital
  • Ellensburg, WA
  • NPI 1356375307
  Medicare reassignment NPD
• Kittitas County Public Hosp Dist 1

  • Urology Physician
  • Ellensburg, WA
  • NPI 1437029832
  NPD
• Kittitas County Public Hospital Dist 1

  • Rural Health Clinic/Center
  • Ellensburg, WA
  • NPI 1770711764
  NPD
• Kittitas County Public Hospital Dist 1

  • Specialist
  • Ellensburg, WA
  • NPI 1790910057
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Kittitas County Public Hospital Dist 1

  • Critical Access Hospital
  • Ellensburg, WA
  • NPI 1356375307
  Care Compare affiliation
• Virginia Mason Medical Center

  • General Acute Care Hospital
  • Seattle, WA
  • NPI 1801851258
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1142812800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1747267200000",
    "number": "1194784090",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "716 E MANITOBA AVE",
            "city": "ELLENSBURG",
            "state": "WA",
            "postal_code": "989263842",
            "telephone_number": "509-925-3151"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "716 E MANITOBA AVE",
            "city": "ELLENSBURG",
            "state": "WA",
            "postal_code": "989263842",
            "telephone_number": "509-925-3151"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "603 S Chestnut St",
            "address_purpose": "LOCATION",
            "city": "Ellensburg",
            "state": "WA",
            "postal_code": "989263875",
            "country_code": "US",
            "telephone_number": "303-390-1940",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LARSON",
        "first_name": "MARK",
        "middle_name": "W",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-20",
        "last_updated": "2025-05-15",
        "certification_date": "2025-05-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "WA",
            "license": "MD00035733",
            "primary": false
        },
        {
            "code": "174400000X",
            "taxonomy_group": "",
            "desc": "Specialist",
            "state": "WA",
            "license": "2520900035733",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "8219073",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• KV Eye PLLC
• Jill Marie Lambson-Nirk, LMHCA
• Kenneth Duane Larson, R.PH.
• Kerri M Larson, ARNP
• Larry A. Larson, PHARMACIST
• Laser Spine & Disc Chiropractic
• Roxanne Marie Laush, NBC-HWC
• Debbie Ann Lavelle, SUDPT CO60889158
• Katherine Lawrence
• Sheryl J Leavitt, LMP

• Specialist in Ellensburg, WA
• Providers in Ellensburg, WA by specialty
• Specialist in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 15, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.