Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
William B Gunn Jr., PHD
Psychologist in Concord, NH · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1053347971
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Registry record
Entity type Individual (Type 1)
Name William B Gunn Jr.
Credential PHD
Sex Male
Practice address 250 Pleasant St, Crfhc, Concord, NH, 03301
Phone (603) 230-7235
Fax (603) 228-7307
Enumeration date Jun 23, 2006
Last updated in NPPES Jan 4, 2011
Taxonomy & licenses
106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 38 (NH) Secondary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0601005Y0NH02 | Other | NH | BEHAVIORAL HEALTH NETWORK |
| 55336 | Other | NH | CIGNA BEHAVIORAL HEALTH |
| 30424855 | Medicaid | NH | - |
| 222594672 | Other | NH | GREATWEST HEALTHCARE |
| 222594672 | Other | NH | TRICARE |
| 222594672 | Other | NH | PRIVATE HEALTH CARE |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is William Gunn?
William Gunn is registered in NPPES with the primary taxonomy of Psychologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-04.