F. Calvin Lemon M.D. Inc
NPI 1821318197 · Internal Medicine Physician · San Ramon, CA
F. Calvin Lemon M.D. Inc is a Internal Medicine Physician organization in San Ramon, CA (NPI 1821318197).
Provider details
- NPI number
- 1821318197
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- F Lemon, Owner(925) 277-3070
- License
- C22470 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-06-09
- Last updated
- 2010-06-10
Frequently asked questions
- What is F. Calvin Lemon M.D. Inc's NPI number?
- F. Calvin Lemon M.D. Inc's National Provider Identifier (NPI) is 1821318197, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is F. Calvin Lemon M.D. Inc?
- F. Calvin Lemon M.D. Inc is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is F. Calvin Lemon M.D. Inc located?
- F. Calvin Lemon M.D. Inc's practice location on file with NPPES is 5601 Norris Canyon Rd Ste 200, San Ramon, CA 94583-5407.
- What is F. Calvin Lemon M.D. Inc's phone number?
- The practice phone number listed in the NPPES registry for F. Calvin Lemon M.D. Inc is (925) 277-3070.
- Who is the authorized official for F. Calvin Lemon M.D. Inc?
- The authorized official listed on F. Calvin Lemon M.D. Inc's NPPES record is F Lemon, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is F. Calvin Lemon M.D. Inc's NPI active?
- Yes — F. Calvin Lemon M.D. Inc's NPI (1821318197) is active in the NPPES registry as of the last update on 2010-06-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.