Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Thatcher S Houldin, MD

Individual provider Internal Medicine Physician · NPI 1578184511

Thatcher S Houldin, MD is an Internal Medicine in Portland, Oregon. Graduated from University of Colorado School of Medicine, Denver in 2020, 6 years ago. Practices with Providence Health and Services Oregon, a 1,426-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
6
Trained at
University of Colorado School of Medicine, Denver
Licensed in
OR
In the registry since
2020
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

4805 NE Glisan St
Portland, OR 97213-2933
Phone: (503) 215-2392
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 9205 Sw Barnes Rd, Portland, OR 97225-6603 — (503) 216-2621

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD216720 (OR)

Record details

NPI number1578184511
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 30, 2020
Last updated in NPPESOctober 27, 2023
Certification dateOctober 27, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Graduated 2020 (6 years in practice)
Group practice Providence Health And Services Oregon — 1426 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations8 on file with Medicare

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