Alexander Drinnan, MD, MS
NPI 1598406225 · Pediatrics Physician · Oakland, CA
Alexander Drinnan, MD, MS is a Pediatrics Physician provider in Oakland, CA (NPI 1598406225).
Provider details
- NPI number
- 1598406225
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MS
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2022-04-05
- Last updated
- 2025-05-08
- Certified
- 2025-05-08
Frequently asked questions
- What is Alexander Drinnan's NPI number?
- Alexander Drinnan's National Provider Identifier (NPI) is 1598406225, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Drinnan's specialty?
- Alexander Drinnan is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Alexander Drinnan located?
- Alexander Drinnan's practice location on file with NPPES is 747 52nd St Ste 245, Oakland, CA 94609-1809.
- What is Alexander Drinnan's phone number?
- The practice phone number listed in the NPPES registry for Alexander Drinnan is (510) 428-3331.
- Is Alexander Drinnan's NPI active?
- Yes — Alexander Drinnan's NPI (1598406225) is active in the NPPES registry as of the last update on 2025-05-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.