Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Gretchen E Blair, MD

Individual provider Internal Medicine Physician · NPI 1750364451

Gretchen E Blair, MD practises Internal Medicine in The Dalles, Oregon. Graduated from University of Washington School of Medicine in 1990, 36 years ago. Practices with Mid-Columbia Medical Center, a 94-clinician group and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
36
Trained at
University of Washington School of Medicine
Licensed in
OR
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1700 E 19th St
The Dalles, OR 97058-3317 Not confirmed with CMS for 16 years — call before visiting
Phone: (541) 296-1111
Fax: (541) 269-7601
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD22032 (OR)

Record details

NPI number1750364451
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 28, 2005
Last updated in NPPESDecember 9, 2009

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 1990 (36 years in practice)
Group practice Mid-Columbia Medical Center — 94 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients330
Services billed 830 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mid-Columbia Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 94 clinicians in the practice; 12 are shown here.

Other providers in The Dalles