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

Richard Lang, OD

Individual provider Optometrist · NPI 1699347096

Richard Lang, OD is an Optometry in San Ramon, California. Graduated from University of California - School of Optometry in 2021, 5 years ago. Practices with Michael Duong OD, a 2-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
5
Trained at
University of California - School of Optometry
Licensed in
CA
In the registry since
2021
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

2551 San Ramon Valley Blvd Ste 101
San Ramon, CA 94583-1661
Phone: (925) 743-1222
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 34948 (CA)

Record details

NPI number1699347096
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedJuly 14, 2021
Last updated in NPPESSeptember 2, 2021
Certification dateSeptember 2, 2021
Mailing address5476 Moonlight Cmn, Fremont, CA 94555-2947

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolUNIVERSITY OF CALIFORNIA - SCHOOL OF OPTOMETRY
Graduated 2021 (5 years in practice)
Group practice Michael Duong Od — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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