Colleen Williamson
NPI 1396101143 · Professional Counselor · San Diego, CA
Colleen Williamson is a Professional Counselor provider in San Diego, CA (NPI 1396101143).
Provider details
- NPI number
- 1396101143
- Entity type
- Individual
- Primary specialty
- Professional CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
10 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 1400 N Johnson AveSuite 101El Cajon, CA 92020-1650Phone: (619) 442-0277Fax: (619) 442-1101
Registry dates
- Enumerated
- 2016-01-10
- Last updated
- 2023-10-03
- Certified
- 2023-10-03
Frequently asked questions
- What is Colleen Williamson's NPI number?
- Colleen Williamson's National Provider Identifier (NPI) is 1396101143, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Colleen Williamson's specialty?
- Colleen Williamson is listed in the NPPES registry with a primary specialty of Professional Counselor (Behavioral Health & Social Service Providers).
- Where is Colleen Williamson located?
- Colleen Williamson's practice location on file with NPPES is 3594 4th Ave, San Diego, CA 92103-4940.
- What is Colleen Williamson's phone number?
- The practice phone number listed in the NPPES registry for Colleen Williamson is (619) 296-1151.
- Is Colleen Williamson's NPI active?
- Yes — Colleen Williamson's NPI (1396101143) is active in the NPPES registry as of the last update on 2023-10-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.