William Glenn, MFT
NPI 1366998981 · Marriage & Family Therapist · Santa Rosa, CA
William Glenn, MFT is a Marriage & Family Therapist provider in Santa Rosa, CA (NPI 1366998981).
Provider details
- NPI number
- 1366998981
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- MFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- 25506 (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
9 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
- 2016-09-01
- Last updated
- 2016-09-01
Frequently asked questions
- What is William Glenn's NPI number?
- William Glenn's National Provider Identifier (NPI) is 1366998981, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Glenn's specialty?
- William Glenn is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is William Glenn located?
- William Glenn's practice location on file with NPPES is 1496 Willowside Road, Santa Rosa, CA 95401.
- What is William Glenn's phone number?
- The practice phone number listed in the NPPES registry for William Glenn is (415) 250-0138.
- Is William Glenn's NPI active?
- Yes — William Glenn's NPI (1366998981) is active in the NPPES registry as of the last update on 2016-09-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.