Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Steven Marc Allison, PSYD LICSW

Clinical Psychologist in Hingham, MA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1295845089

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Registry record

Entity type Individual (Type 1)

Name Steven Marc Allison

Credential PSYD LICSW

Sex Male

Practice address 175 Derby St, Suite 10, Hingham, MA, 02043

Phone (781) 741-9991

Fax (781) 449-3657

Enumeration date Aug 30, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 4842 (MA) Primary

Other identifiers

Identifier	Type	State	Issuer
1891146	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.

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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 Steven Allison?

Steven Allison 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.