Gregory Thayer
NPI 1295177137 · Marriage & Family Therapist · San Francisco, CA
Gregory Thayer is a Marriage & Family Therapist provider in San Francisco, CA (NPI 1295177137).
Provider details
- NPI number
- 1295177137
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
- Mental Health Counselor101YM0800X
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
12 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
- 2013-07-19
- Last updated
- 2016-10-07
Frequently asked questions
- What is Gregory Thayer's NPI number?
- Gregory Thayer's National Provider Identifier (NPI) is 1295177137, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Thayer's specialty?
- Gregory Thayer is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Gregory Thayer located?
- Gregory Thayer's practice location on file with NPPES is 1801 Vicente St., San Francisco, CA 94116.
- What is Gregory Thayer's phone number?
- The practice phone number listed in the NPPES registry for Gregory Thayer is (415) 681-3211.
- Is Gregory Thayer's NPI active?
- Yes — Gregory Thayer's NPI (1295177137) is active in the NPPES registry as of the last update on 2016-10-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.