Tammy ChanM.D.
Obstetrics & Gynecology·Westerville, OH
Tammy Chan, M.D. is an Obstetrics & Gynecology provider in Westerville, OH, as of July 2026.
- NPI1902077324
- Registered2008
- Class of2003
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Education
Education on record as of August 2026.
Tammy Chan at a glance
- Provider
- Tammy Chan
- Credential
- M.D.
- Specialty
- Obstetrics/Gynecology
- Procedures
- Obstetrics & Gynecology CPT codes
- Location
- Westerville, OH
- Medical school
- Ohio State University College of Medicine
- Graduated
- 2003
- NPI registered
- 2008
- NPI
- 1902077324
- 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 Tammy Chan practice?
Tammy Chan, M.D. is based in Westerville, OH. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Tammy Chan's NPI number?
Tammy Chan's National Provider Identifier (NPI) is 1902077324, registered in 2008. Specialty on record: Obstetrics/Gynecology; credential M.D.
Where did Tammy Chan go to medical school?
Tammy Chan, M.D. attended Ohio State University College of Medicine, graduating in 2003.
How many Obstetrics & Gynecology providers in Ohio work at ambulatory surgery centers?
161 Obstetrics & Gynecology surgeons and proceduralists in Ohio are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Tammy Chan among them. The Ohio Obstetrics & Gynecology directory lists each one by city with credential, NPI, and center affiliations.
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