Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JEFFREY JAY GAINES PH.D.
NPI 1396764692
Clinical Neuropsychologist in Worcester, MA

Active since July 18, 2006PECOS Enrolled
87.81/100
CMS Quality Rating
50 ELM ST, SUITE 6, WORCESTER, MA 01609(617) 223-1563 Get Directions Write a Review

NPPES record last updated: July 29, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 29, 2026, Sep 3, 2025 (2 updates tracked since 2025).

About Dr. Jeffrey Jay Gaines Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JEFFREY JAY GAINES PH.D. (NPI 1396764692) is an individual clinical neuropsychologist in Worcester, Massachusetts, licensed in Connecticut (3141) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Wallingford, and is a graduate of Other (2001).

NPPES Registry Identity

NPI1396764692
Entity TypeIndividualMale
Primary Taxonomy103G00000X
Provider Legal NameDR. JEFFREY JAY GAINESCredential: PH.D.
Location Address50 ELM ST, SUITE 6Worcester, MA 01609-2574
Mailing Address50 Gaylord Farm RdWallingford, CT 06492-2899 · (203) 284-2800
Sole ProprietorYes
Medical School CMSOtherGraduated 2001
Enumeration DateJuly 18, 2006
Last NPPES UpdateJuly 29, 20262 updates tracked since enumeration
NPPES CertifiedJuly 29, 2026
NPI 1396764692 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyClinical NeuropsychologistBehavioral Health & Social Service Providers
Taxonomy Code103G00000X
Licenses Licensed in CT · 3141 Licensed in MA · 8264
Definition
A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.
50 ELM ST, Worcester, MA 01609

Secondary Practice Location 1

Location 150 Gaylord Farm RdWallingford, CT 06492-2899 · Phone (203) 284-2800

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Jeffrey Jay Gaines Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7416900816
PECOS Enrollment IDI20221222000776
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

87.81/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality73.97
Improvement Activities40

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Social Worker (Clinical)
50 ELM ST, SUITE 3B
WORCESTER, MA 01609
Social Worker (Clinical)
50 ELM ST
WORCESTER, MA 01609
Counselor (Mental Health)
50 ELM ST
WORCESTER, MA 01609
Social Worker (Clinical)
50 ELM ST, #3B
WORCESTER, MA 01609
Psychologist (Clinical)
50 ELM ST
WORCESTER, MA 01609

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Jeffrey Gaines's NPI number?

The NPI number for Jeffrey Gaines is 1396764692. It was assigned to this individual provider in the NPPES registry on July 18, 2006.

Where is Jeffrey Gaines located?

Jeffrey Gaines practices at 50 Elm St Suite 6, Worcester, MA 01609. The listed phone number is (617) 223-1563.

What is Jeffrey Gaines's specialty?

The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.

Is Jeffrey Gaines enrolled in Medicare?

Yes. Jeffrey Gaines is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Jeffrey Gaines was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.