Christopher Keller, PSY.D.
NPI 1639421209 · Clinical Psychologist · Williamsville, NY
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Keller, PSY.D. is a Clinical Psychologist provider in Williamsville, NY (NPI 1639421209).
Provider details
- NPI number
- 1639421209
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PSY.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 019744 (NY)
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
13 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
- 2012-10-08
- Last updated
- 2015-01-22
Frequently asked questions
- What is Christopher Keller's NPI number?
- Christopher Keller's National Provider Identifier (NPI) is 1639421209, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Keller's specialty?
- Christopher Keller is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Christopher Keller located?
- Christopher Keller's practice location on file with NPPES is 5820 Main St, Williamsville, NY 14221-5776.
- What is Christopher Keller's phone number?
- The practice phone number listed in the NPPES registry for Christopher Keller is (716) 634-2538.
- Does Christopher Keller accept Medicare?
- Christopher Keller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Keller's NPI active?
- Yes — Christopher Keller's NPI (1639421209) is active in the NPPES registry as of the last update on 2015-01-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.