William Harrison, PH.D.
NPI 1528284569 · Clinical Psychologist · Irvington, NY
William Harrison, PH.D. is a Clinical Psychologist provider in Irvington, NY (NPI 1528284569).
Provider details
- NPI number
- 1528284569
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 019306 (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
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
- 2007-04-18
- Last updated
- 2013-12-20
Frequently asked questions
- What is William Harrison's NPI number?
- William Harrison's National Provider Identifier (NPI) is 1528284569, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Harrison's specialty?
- William Harrison is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is William Harrison located?
- William Harrison's practice location on file with NPPES is 100 N Broadway, Irvington, NY 10533-1254.
- What is William Harrison's phone number?
- The practice phone number listed in the NPPES registry for William Harrison is (914) 591-7300.
- Is William Harrison's NPI active?
- Yes — William Harrison's NPI (1528284569) is active in the NPPES registry as of the last update on 2013-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.