Individual Healthcare Provider
Mark W Larson, M.D.
Provider's NPPES record last updated: May 15, 2025
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1194784090
- Primary Specialty
- Specialist
- Practice Location
- Ellensburg, Washington
- Sole Proprietor
- No
Federal Screening
NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.
List of Excluded Individuals/Entities (LEIE)
HHS Office of Inspector General
No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.
- Source data
- September 10, 2026
- Records indexed
- 84,001
- Screened
- Sep 17, 2026, 10:54 PM UTC
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
SAM.gov Exclusions
U.S. General Services Administration
SAM.gov Exclusions was not checked.
SAM.gov screening is not configured on this deployment. No SAM check has been performed.
- Screened
- Not checked
This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
Searches OIG LEIE and SAM.gov by name and reviews every potential match.
Specialties & Taxonomies
- Primary
Specialist
Other Service Providers
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
Taxonomy code 174400000X Family Medicine
Allopathic & Osteopathic Physicians
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Taxonomy code 207Q00000X
Provider-Reported License Information
- Specialist (Washington)
- 2520900035733
- Family Medicine (Washington)
- MD00035733
Practice Locations
Practice Location
716 E Manitoba Ave
Ellensburg, Washington 98926-3842
Phone: (509) 925-3151
Additional Practice Location
603 S Chestnut St
Ellensburg, Washington 98926-3875
Phone: (303) 390-1940
Record Information
- Enumeration Date
- March 20, 2006
- Provider's NPPES Record Last Updated
- May 15, 2025
- Certification Date
- May 15, 2025
- NPISignal NPPES Dataset
- August 2026
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