Tom ChangMD
Tom Chang, MD is an Ophthalmology provider in Pasadena, CA affiliated with 4 ambulatory surgery centers in CA, as of July 2026.
- NPI1609848969
- Registered2006
- Centers4
- StateCA
- Class of1988
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.
- Renaissance ASC LLCPalm Desert, CA · Ophthalmology · 8 on panelView center →
- Huntington Ambulatory Surgery CenterPasadena, CA · General surgery, Ophthalmology, Pain management, Plastic surgery · 30 on panelView center →
- Trinity Surgical Solution INCSan Gabriel, CA · Ophthalmology · 2 on panelView center →
- Pasadena Surgery Center INC A Medical CorporationPasadena, CA · Ophthalmology, Pain management · 14 on panelView center →
Tom Chang at a glance
- Provider
- Tom Chang
- Credential
- MD
- Specialty
- Ophthalmology
- Procedures
- Ophthalmology CPT codes
- Location
- Pasadena, CA
- Medical school graduation
- 1988
- NPI registered
- 2006
- NPI
- 1609848969
- 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 Tom Chang practice?
Tom Chang, MD is based in Pasadena, CA and is affiliated with 4 ambulatory surgery centers: Renaissance ASC LLC in Palm Desert, CA, Huntington Ambulatory Surgery Center in Pasadena, CA, Trinity Surgical Solution INC in San Gabriel, CA, and Pasadena Surgery Center INC A Medical Corporation in Pasadena, CA. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Tom Chang's NPI number?
Tom Chang's National Provider Identifier (NPI) is 1609848969, registered in 2006. Specialty on record: Ophthalmology; credential MD.
How many Ophthalmology providers in California work at ambulatory surgery centers?
869 Ophthalmology surgeons and proceduralists in California are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Tom Chang among them. The California Ophthalmology directory lists each one by city with credential, NPI, and center affiliations.
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