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

Dennis Chan Tan, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1457577983

Dennis Chan Tan, MD is an Obstetrics/Gynecology in Milwaukie, Oregon. Qualified in 2003, 23 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
23
Licensed in
OR
In the registry since
2007
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

10330 SE 32nd Ave Ste 305
Milwaukie, OR 97222-6596
Phone: (503) 513-1800
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 9300 Se 91st Ave, Happy Valley, OR 97086-3749 — (503) 772-5011

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence MD27355 (OR)

Record details

NPI number1457577983
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 17, 2007
Last updated in NPPESMarch 25, 2021
Certification dateMarch 25, 2021
Mailing addressPo Box 3158, Portland, OR 97208-3158

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Providence Health And Services Oregon — 1426 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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