Thomas OnyiaM.D
Thomas Onyia, M.D is a Surgery provider in San Diego, CA affiliated with 1 ambulatory surgery center in CA, as of July 2026.
- NPI1902283443
- Registered2015
- Centers1
- StateCA
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Ambulatory surgery centers
Centers whose service lines match this provider’s. Affiliations change; verify independently.
Thomas Onyia at a glance
- Provider
- Thomas Onyia
- Credential
- M.D
- Specialty
- Surgery
- Location
- San Diego, CA
- NPI registered
- 2015
- NPI
- 1902283443
- 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 Thomas Onyia practice?
Thomas Onyia, M.D is based in San Diego, CA and is affiliated with 1 ambulatory surgery center: Mission Ambulatory Surgicenter in Mission Viejo, CA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Thomas Onyia's NPI number?
Thomas Onyia's National Provider Identifier (NPI) is 1902283443, registered in 2015. Specialty on record: Surgery; credential M.D.
How many Surgery providers in California work at ambulatory surgery centers?
54 Surgery surgeons and proceduralists in California are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Thomas Onyia among them. The California Surgery directory lists each one by city with credential, NPI, and center affiliations.
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