James Larsen, DO
NPI 1558399162 · Family Medicine Physician · Chelan, WA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Larsen, DO is a Family Medicine Physician provider in Chelan, WA (NPI 1558399162).
Provider details
- NPI number
- 1558399162
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- OP00001541 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 5901 N Lidgerwood St Ste 126Spokane, WA 99208-1122Phone: (509) 444-8200
Registry dates
- Enumerated
- 2006-06-30
- Last updated
- 2021-12-22
- Certified
- 2021-12-22
Frequently asked questions
- What is James Larsen's NPI number?
- James Larsen's National Provider Identifier (NPI) is 1558399162, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Larsen's specialty?
- James Larsen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is James Larsen located?
- James Larsen's practice location on file with NPPES is 317 E Johnson Ave, Chelan, WA 98816-2920.
- What is James Larsen's phone number?
- The practice phone number listed in the NPPES registry for James Larsen is (509) 682-6000.
- Does James Larsen accept Medicare?
- James Larsen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Larsen's NPI active?
- Yes — James Larsen's NPI (1558399162) is active in the NPPES registry as of the last update on 2021-12-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.