IndividualActive
William Sullivan, MFT
NPI 1467509448 · Professional Counselor · Sonora, CA
William Sullivan, MFT is a Professional Counselor provider in Sonora, CA (NPI 1467509448).
Provider details
- NPI number
- 1467509448
- Entity type
- Individual
- Primary specialty
- Professional CounselorBehavioral Health & Social Service Providers
- Credential
- MFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- MFT 39899 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(90/100 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
101 S Forest Rd
Sonora, CA 95370-4895
Phone: (209) 533-0963
Street-level locationGet directions
Mailing address
15442 Camino Del Parque Rd S
Sonora, CA 95370-9655
Registry dates
- Enumerated
- 2007-01-04
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Sullivan's NPI number?
- William Sullivan's National Provider Identifier (NPI) is 1467509448, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Sullivan's specialty?
- William Sullivan is listed in the NPPES registry with a primary specialty of Professional Counselor (Behavioral Health & Social Service Providers).
- Where is William Sullivan located?
- William Sullivan's practice location on file with NPPES is 101 S Forest Rd, Sonora, CA 95370-4895.
- What is William Sullivan's phone number?
- The practice phone number listed in the NPPES registry for William Sullivan is (209) 533-0963.
- Is William Sullivan's NPI active?
- Yes — William Sullivan's NPI (1467509448) 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.