Mary Ann Barr, PH.D.
NPI 1811102908 · Prescribing (Medical) Psychologist · Mill Valley, CA
Mary Ann Barr, PH.D. is a Prescribing (Medical) Psychologist provider in Mill Valley, CA (NPI 1811102908).
Provider details
- NPI number
- 1811102908
- Entity type
- Individual
- Primary specialty
- Prescribing (Medical) PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- PG 5913 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
- 2007-05-11
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mary Ann Barr's NPI number?
- Mary Ann Barr's National Provider Identifier (NPI) is 1811102908, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Ann Barr's specialty?
- Mary Ann Barr is listed in the NPPES registry with a primary specialty of Prescribing (Medical) Psychologist (Behavioral Health & Social Service Providers).
- Where is Mary Ann Barr located?
- Mary Ann Barr's practice location on file with NPPES is 277 Cascade Dr, Mill Valley, CA 94941-5025.
- What is Mary Ann Barr's phone number?
- The practice phone number listed in the NPPES registry for Mary Ann Barr is (415) 383-9245.
- Is Mary Ann Barr's NPI active?
- Yes — Mary Ann Barr's NPI (1811102908) 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.