Alan Mayfield, M.D.
NPI 1821151648 · Psychiatry Physician · San Diego, CA
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alan Mayfield, M.D. is a Psychiatry Physician provider in San Diego, CA (NPI 1821151648).
Provider details
- NPI number
- 1821151648
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A94205 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2006-12-19
- Last updated
- 2026-04-06
- Certified
- 2026-04-06
Frequently asked questions
- What is Alan Mayfield's NPI number?
- Alan Mayfield's National Provider Identifier (NPI) is 1821151648, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alan Mayfield's specialty?
- Alan Mayfield is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Alan Mayfield located?
- Alan Mayfield's practice location on file with NPPES is 34800 Bob Wilson Dr., San Diego, CA 92134.
- What is Alan Mayfield's phone number?
- The practice phone number listed in the NPPES registry for Alan Mayfield is (619) 532-5666.
- Does Alan Mayfield accept Medicare?
- Alan Mayfield is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alan Mayfield's NPI active?
- Yes — Alan Mayfield's NPI (1821151648) is active in the NPPES registry as of the last update on 2026-04-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.