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Dr. Gregg D Jacobs, PH.D.

Clinical Psychologist in Worcester, MA · enumerated 2006.

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

National Provider Identifier

1326133604

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Registry record

Entity type Individual (Type 1)
Name Dr. Gregg D Jacobs
Credential PH.D.
Sex Male
Practice address 85 Prescott St, Worcester, MA, 01605
Phone (508) 793-4958
Fax (508) 334-8127
Enumeration date Oct 4, 2006
Last updated in NPPES Jan 25, 2017

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 4595 (MA) Primary
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
0520152 Medicaid MA -
110023549A 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

How do I verify Gregg Jacobs's NPI record?
Cross-check NPI 1326133604 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1326133604 active?
Yes, as of the latest NPPES snapshot, NPI 1326133604 is active (record last updated 2017-01-25).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-25.