What is Thomas Koehler's NPI number?

Thomas Koehler's National Provider Identifier (NPI) is 1861504029, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Thomas Koehler's specialty?

Thomas Koehler is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Thomas Koehler located?

Thomas Koehler's practice location on file with NPPES is 401 W Poplar St, Walla Walla, WA 99362-2846.

What is Thomas Koehler's phone number?

The practice phone number listed in the NPPES registry for Thomas Koehler is (509) 522-5145.

Is Thomas Koehler's NPI active?

Yes — Thomas Koehler's NPI (1861504029) is active in the NPPES registry as of the last update on 2012-03-22.

IndividualActive

Thomas Koehler, MD

NPI 1861504029 · Internal Medicine Physician · Walla Walla, WA

Thomas Koehler, MD is a Internal Medicine Physician provider in Walla Walla, WA (NPI 1861504029).

Provider details

NPI number: 1861504029
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: MD60095228 (WA)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense MD60095228 (WA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(90/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
19 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

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

401 W Poplar St

Hospitalists

Walla Walla, WA 99362-2846

Phone: (509) 522-5145

Fax: (509) 522-5184

Approximate (ZIP-level) locationGet directions

More WA providers

Mailing address

Po Box 34439

Seattle, WA 98124-1439

Enumerated: 2006-08-31
Last updated: 2012-03-22

Frequently asked questions

What is Thomas Koehler's NPI number?: Thomas Koehler's National Provider Identifier (NPI) is 1861504029, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Thomas Koehler's specialty?: Thomas Koehler is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
Where is Thomas Koehler located?: Thomas Koehler's practice location on file with NPPES is 401 W Poplar St, Walla Walla, WA 99362-2846.
What is Thomas Koehler's phone number?: The practice phone number listed in the NPPES registry for Thomas Koehler is (509) 522-5145.
Is Thomas Koehler's NPI active?: Yes — Thomas Koehler's NPI (1861504029) is active in the NPPES registry as of the last update on 2012-03-22.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.