Alan Douglass, M.D.
NPI 1811969991 · Endocrinology, Diabetes & Metabolism Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alan Douglass, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in San Diego, CA (NPI 1811969991).
Provider details
- NPI number
- 1811969991
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G75547 (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
- 2006-02-03
- Last updated
- 2025-05-09
- Certified
- 2025-05-09
Frequently asked questions
- What is Alan Douglass's NPI number?
- Alan Douglass's National Provider Identifier (NPI) is 1811969991, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alan Douglass's specialty?
- Alan Douglass is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Alan Douglass located?
- Alan Douglass's practice location on file with NPPES is 34800 Bob Wilson Dr, San Diego, CA 92134-1098.
- What is Alan Douglass's phone number?
- The practice phone number listed in the NPPES registry for Alan Douglass is (619) 532-7375.
- Does Alan Douglass accept Medicare?
- Alan Douglass is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alan Douglass's NPI active?
- Yes — Alan Douglass's NPI (1811969991) is active in the NPPES registry as of the last update on 2025-05-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.