Lindsey Williams, PHD
NPI 1639546773 · Psychologist · Indianapolis, IN
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lindsey Williams, PHD is a Psychologist provider in Indianapolis, IN (NPI 1639546773).
Provider details
- NPI number
- 1639546773
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 000
Specialties & taxonomies
Behavioral Health & Social Service Providers
Student, Health Care
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
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
- 2015-08-24
- Last updated
- 2021-03-29
- Certified
- 2021-03-29
Frequently asked questions
- What is Lindsey Williams's NPI number?
- Lindsey Williams's National Provider Identifier (NPI) is 1639546773, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lindsey Williams's specialty?
- Lindsey Williams is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Lindsey Williams located?
- Lindsey Williams's practice location on file with NPPES is 355 W 16th St, Indianapolis, IN 46202-2207.
- What is Lindsey Williams's phone number?
- The practice phone number listed in the NPPES registry for Lindsey Williams is (317) 963-7316.
- Does Lindsey Williams accept Medicare?
- Lindsey Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lindsey Williams's NPI active?
- Yes — Lindsey Williams's NPI (1639546773) is active in the NPPES registry as of the last update on 2021-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.