Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Daniel Joseph Mullin, PSY.D.
Clinical Psychologist in Barre, MA · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1134378029
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Registry record
Entity type Individual (Type 1)
Name Dr. Daniel Joseph Mullin
Credential PSY.D.
Sex Male
Practice address 151 Worcester Rd, Barre, MA, 01005
Phone (978) 355-6321
Fax (978) 355-6329
Enumeration date Sep 16, 2008
Last updated in NPPES Oct 30, 2020
Taxonomy & licenses
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 8905 (MA) Primary
PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice.
About the PSYD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 110081957A | Medicaid | MA | - |
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 Daniel Mullin?
Daniel Mullin is registered in NPPES with the primary taxonomy of Clinical 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 2020-10-30.