William Nunn, PHD, HSPP
NPI 1689625832 · Clinical Psychologist · Greencastle, IN
William Nunn, PHD, HSPP is a Clinical Psychologist provider in Greencastle, IN (NPI 1689625832).
Provider details
- NPI number
- 1689625832
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD, HSPP
- Sex
- Male
- Sole proprietor
- No
- License
- 20041024 (IN)
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
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
Mailing address
Registry dates
- Enumerated
- 2006-05-12
- Last updated
- 2011-03-15
Frequently asked questions
- What is William Nunn's NPI number?
- William Nunn's National Provider Identifier (NPI) is 1689625832, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Nunn's specialty?
- William Nunn is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is William Nunn located?
- William Nunn's practice location on file with NPPES is 239 Hillsdale Ave, Greencastle, IN 46135-1340.
- What is William Nunn's phone number?
- The practice phone number listed in the NPPES registry for William Nunn is (765) 653-1024.
- Is William Nunn's NPI active?
- Yes — William Nunn's NPI (1689625832) is active in the NPPES registry as of the last update on 2011-03-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.