Mary Kay Brewster, M.D.
NPI 1275646192 · Obstetrics & Gynecology Physician · Monterey, CA
Mary Kay Brewster, M.D. is a Obstetrics & Gynecology Physician provider in Monterey, CA (NPI 1275646192).
Provider details
- NPI number
- 1275646192
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- G84568 (CA)
Specialties & taxonomies
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
- 2006-08-16
- Last updated
- 2017-12-20
Frequently asked questions
- What is Mary Kay Brewster's NPI number?
- Mary Kay Brewster's National Provider Identifier (NPI) is 1275646192, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Kay Brewster's specialty?
- Mary Kay Brewster is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Kay Brewster located?
- Mary Kay Brewster's practice location on file with NPPES is 172 El Dorado St, Monterey, CA 93940-3118.
- What is Mary Kay Brewster's phone number?
- The practice phone number listed in the NPPES registry for Mary Kay Brewster is (831) 649-0111.
- Is Mary Kay Brewster's NPI active?
- Yes — Mary Kay Brewster's NPI (1275646192) is active in the NPPES registry as of the last update on 2017-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.