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Allan Mcdonald, M.D.
NPI 1821124942 · Psychiatry Physician · Altadena, CA
Allan Mcdonald, M.D. is a Psychiatry Physician provider in Altadena, CA (NPI 1821124942).
Provider details
- NPI number
- 1821124942
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G10903 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
2933 El Nido Dr
Altadena, CA 91001-4529
Phone: (626) 644-0442
Fax: (626) 441-0072
Street-level locationGet directions
Mailing address
Po Box 50640
Pasadena, CA 91115-0640
Registry dates
- Enumerated
- 2007-02-25
- Last updated
- 2007-07-08
Frequently asked questions
- What is Allan Mcdonald's NPI number?
- Allan Mcdonald's National Provider Identifier (NPI) is 1821124942, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allan Mcdonald's specialty?
- Allan Mcdonald is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Allan Mcdonald located?
- Allan Mcdonald's practice location on file with NPPES is 2933 El Nido Dr, Altadena, CA 91001-4529.
- What is Allan Mcdonald's phone number?
- The practice phone number listed in the NPPES registry for Allan Mcdonald is (626) 644-0442.
- Is Allan Mcdonald's NPI active?
- Yes — Allan Mcdonald's NPI (1821124942) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.