William Vasilakis, PSY.D.
NPI 1063424497 · Clinical Psychologist · Lancaster, OH
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Vasilakis, PSY.D. is a Clinical Psychologist provider in Lancaster, OH (NPI 1063424497).
Provider details
- NPI number
- 1063424497
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 5481 (OH)
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
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
Mailing address
Registry dates
- Enumerated
- 2006-08-13
- Last updated
- 2015-02-23
Frequently asked questions
- What is William Vasilakis's NPI number?
- William Vasilakis's National Provider Identifier (NPI) is 1063424497, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Vasilakis's specialty?
- William Vasilakis is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is William Vasilakis located?
- William Vasilakis's practice location on file with NPPES is 204 S Broad St, Lancaster, OH 43130-7501.
- What is William Vasilakis's phone number?
- The practice phone number listed in the NPPES registry for William Vasilakis is (740) 689-8910.
- Does William Vasilakis accept Medicare?
- William Vasilakis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Vasilakis's NPI active?
- Yes — William Vasilakis's NPI (1063424497) is active in the NPPES registry as of the last update on 2015-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.