NPPES file of Aug 9, 2026

William Nunn, PHD, HSPP

Clinical Psychologist · Greencastle, IN

William Nunn, PHD, HSPP is a clinical psychologist with a practice address in Greencastle, Indiana, and NPI 1689625832, issued on May 12, 2006. Check the license (Indiana 20041024, as entered in NPPES) with the Indiana board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1689625832
Name
William Nunn
Credential
PHD, HSPP
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
20041024 IN
Self-reported in NPPES; status is on the state search
Practice location
239 Hillsdale Ave, Greencastle, IN 46135
Phone
(765) 653-1024
Enumerated
May 12, 2006
Record last updated
Mar 15, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(765) 653-4931
Medicaid ID
200067860 IN
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest clinical psychologist records → All 838 in Indiana → Look up another NPI →

Also registered at 239 Hillsdale Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Shayna Aguilar, NPPsychiatric/Mental Health Nurse Practitioner1275159485
  2. Shirl Barker, PH.D., NCC, LMHCMental Health Counselor1447259585
  3. Maya Bates, MSMental Health Counselor1255089967
  4. Wendy Culley, LMHCMental Health Counselor1831049923
  5. Elizabeth Delaney, LCSW, LMFTClinical Social Worker1740248418
  6. Dana Glessner, LCSWClinical Social Worker1962871129

Verify William Nunn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Indiana board licenses this profession
    Search for license 20041024    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Indiana license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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William Nunn among 838 clinical psychologist records in Indiana

William Nunn, PHD, HSPP is one of 838 clinical psychologist records with a practice address in Indiana. 20% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 10% of them.

  • NPI issued2006 · 10% of these records are older, 61% newer
  • In a Medicare fileNo · 20% of these records are
  • In the CMS Doctors and Clinicians fileNo · 26% of these records are
  • Record last updated2011 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

5 clinical psychologist records list a practice address in Greencastle

They are 5 of the 224 NPPES records with a practice address in Greencastle, and 838 clinical psychologist records in Indiana. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 838 in Indiana → Every provider in Greencastle → Clinical Psychologist nationwide →

The 8 clinical psychologist records with the nearest ZIP codes

  1. Lucy Field, PHD HSPPGreencastle, IN 461351104803667
  2. Pamela Guthrie, PHD, HSPPGreencastle, IN 461351922066307
  3. Nicholas Heck, PH.D.Greencastle, IN 461351013430495
  4. Christina Wagner, PHDGreencastle, IN 461351144519794
  5. Paula Gardner, PSYD, HSPPGreenwood, IN 461421952391534
  6. Russ Rasmussen, PSY. D.Greenwood, IN 461421013926799
  7. Kari Kennedy, PSY.D., H.S.P.P.Greenwood, IN 461431962501692
  8. Dawn Lindeman, PH.D., NCC, HSPPGreenwood, IN 461431750547089

Common questions

What is William Nunn, PHD, HSPP's NPI number?

William Nunn, PHD, HSPP's National Provider Identifier (NPI) is 1689625832, issued on May 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William Nunn, PHD, HSPP located?

The NPPES record lists a practice address at 239 Hillsdale Ave, Greencastle, IN, 46135. Phone: (765) 653-1024. Providers update this record themselves, so call before visiting.

How can I verify William Nunn, PHD, HSPP's license?

NPPES lists Indiana license number 20041024, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.