IndividualActive
Warren Keller, PH.D.
NPI 1821090648 · Psychologist · Williamsville, NY
Warren Keller, PH.D. is a Psychologist provider in Williamsville, NY (NPI 1821090648).
Provider details
- NPI number
- 1821090648
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- License
- 07489 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
8175 Sheridan Dr
Ste 200
Williamsville, NY 14221-6002
Phone: (716) 634-2600
Fax: (716) 634-2675
Street-level locationGet directions
Mailing address
9750 Transit Rd
East Amherst, NY 14051-2124
Registry dates
- Enumerated
- 2005-08-11
- Last updated
- 2017-04-08
Frequently asked questions
- What is Warren Keller's NPI number?
- Warren Keller's National Provider Identifier (NPI) is 1821090648, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Warren Keller's specialty?
- Warren Keller is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Warren Keller located?
- Warren Keller's practice location on file with NPPES is 8175 Sheridan Dr, Williamsville, NY 14221-6002.
- What is Warren Keller's phone number?
- The practice phone number listed in the NPPES registry for Warren Keller is (716) 634-2600.
- Is Warren Keller's NPI active?
- Yes — Warren Keller's NPI (1821090648) is active in the NPPES registry as of the last update on 2017-04-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.