NPPES file of Aug 9, 2026

Gregg D. Jacobs, PH.D.

Clinical Psychologist · Worcester, MA

Gregg D. Jacobs, PH.D. is a clinical psychologist with a practice address in Worcester, Massachusetts, and NPI 1326133604, issued on Oct 4, 2006. Check the license (Massachusetts 4595, as entered in NPPES) with the Massachusetts 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
1326133604
Name
Gregg D. Jacobs
Credential
PH.D.
Primary taxonomy
Clinical Psychologist 103TC0700X
License number
4595 MA
Self-reported in NPPES; status is on the state search
Practice location
85 Prescott St, Worcester, MA 01605
Phone
(508) 793-4958
Enumerated
Oct 4, 2006
Record last updated
Jan 25, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(508) 334-8127
Medicaid IDs
0520152 MA
110023549A MA
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 3,185 in Massachusetts → Look up another NPI →

Also registered at 85 Prescott St

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Verify Gregg D. Jacobs in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 4595    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 Massachusetts 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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Gregg D. Jacobs among 3,185 clinical psychologist records in Massachusetts

Gregg D. Jacobs, PH.D. is one of 3,185 clinical psychologist records with a practice address in Massachusetts. 12% 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 2% of them.

  • NPI issued2006 · 2% of these records are older, 70% newer
  • In a Medicare fileNo · 12% of these records are
  • In the CMS Doctors and Clinicians fileNo · 24% of these records are
  • Record last updated2017 · 71% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

160 clinical psychologist records list a practice address in Worcester

They are 160 of the 13,166 NPPES records with a practice address in Worcester, and 3,185 clinical psychologist records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 3,185 in Massachusetts → Every provider in Worcester → Clinical Psychologist nationwide →

The 8 clinical psychologist records with the nearest ZIP codes

  1. Elizabeth Austin, PSY.D.Worcester, MA 016051265412175
  2. F. Alexander Blount, ED.D.Worcester, MA 016051679551121
  3. Elaine Borgen, PSY.D.Worcester, MA 016051902886856
  4. Lorraine Cavallaro, PH.D.Worcester, MA 016051295776300
  5. William Ferrarone, PHDWorcester, MA 016051699713461
  6. Steven LessinWorcester, MA 016051346295268
  7. Kathleen McGonagle, PSY.D, RNCS PCWorcester, MA 016051285691089
  8. Peter Moran, PH.D.Worcester, MA 016051700809399

Common questions

What is Gregg D. Jacobs, PH.D.'s NPI number?

Gregg D. Jacobs, PH.D.'s National Provider Identifier (NPI) is 1326133604, issued on Oct 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregg D. Jacobs, PH.D. located?

The NPPES record lists a practice address at 85 Prescott St, Worcester, MA, 01605. Phone: (508) 793-4958. Providers update this record themselves, so call before visiting.

How can I verify Gregg D. Jacobs, PH.D.'s license?

NPPES lists Massachusetts license number 4595, as entered by the provider. Search the Massachusetts 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.