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

Tom S Chang, MD

Individual provider Ophthalmology Physician · NPI 1609848969

Tom S Chang, MD is an Ophthalmology in Pasadena, California. Qualified in 1988, 38 years ago. Practices with Retina Institute of California Medical Group, a California Medical Par, a 76-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
38
Licensed in
CA
In the registry since
2006
Specialties on file
2
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

100 E California Blvd
Pasadena, CA 91105-3205
Phone: (626) 568-8838
Fax: (626) 583-8838
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Retina Specialist (Ophthalmology) Physician (primary) Taxonomy 207WX0107X · Licence A69909 (CA)
Ophthalmology Physician Taxonomy 207W00000X · Licence A69909 (CA)

Record details

NPI number1609848969
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 2, 2006
Last updated in NPPESAugust 7, 2020
Certification dateAugust 7, 2020
Mailing address100 E California Blvd, Pasadena, CA 91105-3205

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolOTHER
Graduated 1988 (38 years in practice)
Group practice Retina Institute Of California Medical Group, A California Medical Par — 76 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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