Leonard Leon, M.D.
NPI 1942253299 · Obstetrics & Gynecology Physician · Grass Valley, CA
Leonard Leon, M.D. is a Obstetrics & Gynecology Physician provider in Grass Valley, CA (NPI 1942253299).
Provider details
- NPI number
- 1942253299
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G32693 (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
20 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
- 2006-05-18
- Last updated
- 2018-10-09
Frequently asked questions
- What is Leonard Leon's NPI number?
- Leonard Leon's National Provider Identifier (NPI) is 1942253299, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Leon's specialty?
- Leonard Leon is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Leon located?
- Leonard Leon's practice location on file with NPPES is 280 Sierra College Dr, Grass Valley, CA 95945-5763.
- What is Leonard Leon's phone number?
- The practice phone number listed in the NPPES registry for Leonard Leon is (530) 273-8486.
- Is Leonard Leon's NPI active?
- Yes — Leonard Leon's NPI (1942253299) is active in the NPPES registry as of the last update on 2018-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.