Dennis TanM.D.
Obstetrics & Gynecology·Milwaukie, OR
Dennis Tan, M.D. is an Obstetrics & Gynecology provider in Milwaukie, OR, as of July 2026.
- NPI1457577983
- Registered2007
- Class of2003
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Dennis Tan at a glance
- Provider
- Dennis Tan
- Credential
- M.D.
- Specialty
- Obstetrics/Gynecology
- Procedures
- Obstetrics & Gynecology CPT codes
- Location
- Milwaukie, OR
- Medical school graduation
- 2003
- NPI registered
- 2007
- NPI
- 1457577983
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does Dennis Tan practice?
Dennis Tan, M.D. is based in Milwaukie, OR. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Dennis Tan's NPI number?
Dennis Tan's National Provider Identifier (NPI) is 1457577983, registered in 2007. Specialty on record: Obstetrics/Gynecology; credential M.D.
How many Obstetrics & Gynecology providers in Oregon work at ambulatory surgery centers?
148 Obstetrics & Gynecology surgeons and proceduralists in Oregon are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Dennis Tan among them. The Oregon Obstetrics & Gynecology directory lists each one by city with credential, NPI, and center affiliations.
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