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Marian Birdsall, MD
NPI 1235142613 · Pediatrics Physician · Walnut Creek, CA
Marian Birdsall, MD is a Pediatrics Physician provider in Walnut Creek, CA (NPI 1235142613).
Provider details
- NPI number
- 1235142613
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A55509 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 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
301 Lennon Ln Ste 203
Walnut Creek, CA 94598-2483
Phone: (925) 939-7334
Fax: (925) 939-7340
Street-level locationGet directions
Mailing address
301 Lennon Ln Ste 203
Walnut Creek, CA 94598-2483
Registry dates
- Enumerated
- 2006-08-15
- Last updated
- 2007-07-08
Frequently asked questions
- What is Marian Birdsall's NPI number?
- Marian Birdsall's National Provider Identifier (NPI) is 1235142613, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marian Birdsall's specialty?
- Marian Birdsall is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Marian Birdsall located?
- Marian Birdsall's practice location on file with NPPES is 301 Lennon Ln Ste 203, Walnut Creek, CA 94598-2483.
- What is Marian Birdsall's phone number?
- The practice phone number listed in the NPPES registry for Marian Birdsall is (925) 939-7334.
- Is Marian Birdsall's NPI active?
- Yes — Marian Birdsall's NPI (1235142613) 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.