Gwendolyn Williamson
NPI 1457951832 · Mental Health Counselor · Indianapolis, IN
Enrolled with Medicare as Practitioner - Mental Health Counselor · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gwendolyn Williamson is a Mental Health Counselor provider in Indianapolis, IN (NPI 1457951832).
Provider details
- NPI number
- 1457951832
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 99100615A (IN)
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
5 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
- 2020-10-27
- Last updated
- 2020-10-27
- Certified
- 2020-10-27
Frequently asked questions
- What is Gwendolyn Williamson's NPI number?
- Gwendolyn Williamson's National Provider Identifier (NPI) is 1457951832, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gwendolyn Williamson's specialty?
- Gwendolyn Williamson is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Gwendolyn Williamson located?
- Gwendolyn Williamson's practice location on file with NPPES is 8355 Rockville Rd, Indianapolis, IN 46234-2722.
- What is Gwendolyn Williamson's phone number?
- The practice phone number listed in the NPPES registry for Gwendolyn Williamson is (317) 513-8979.
- Does Gwendolyn Williamson accept Medicare?
- Gwendolyn Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gwendolyn Williamson's NPI active?
- Yes — Gwendolyn Williamson's NPI (1457951832) is active in the NPPES registry as of the last update on 2020-10-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.