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F. Calvin Lemon M.D. Inc

Internal Medicine Physician in San Ramon, CA · enumerated 2010 · authorized official F Lemon, Owner.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1821318197

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Registry record

Entity type Organization (Type 2)
Legal business name F. Calvin Lemon M.D. Inc
Practice address 5601 Norris Canyon Rd Ste 200, San Ramon, CA, 94583
Phone (925) 277-3070
Fax (925) 866-8205
Enumeration date Jun 9, 2010
Last updated in NPPES Jun 10, 2010

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License C22470 (CA) Primary

Authorized official

Name F Lemon
Title Owner
Phone (925) 277-3070

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-06-10. Verify at npiregistry.cms.hhs.gov.
Where is F. Calvin Lemon M.D. Inc located?
The practice location on file with NPPES is in San Ramon, CA.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-10.