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MASS GENERAL BRIGHAM MEDICAL GROUP WESTERN MASSACHUSETTS INC
NPI 1295787919
Family Medicine in Northampton, MA

Active since May 17, 2006
30 LOCUST ST, NORTHAMPTON, MA 01060(413) 582-2898(413) 582-2958 Get Directions Write a Review

NPPES record last updated: June 2, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 2, 2025, May 16, 2025 (2 updates tracked since 2025).

About Mass General Brigham Medical Group Western Massachusetts Inc NPPES

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

MASS GENERAL BRIGHAM MEDICAL GROUP WESTERN MASSACHUSETTS INC (NPI 1295787919), doing business as Cd Practice Associates, Inc, is a healthcare organization registered as a family medicine in Northampton, Massachusetts and active in the NPI registry since May 2006. The organization lists Lindsay Gainer, President & Coo, as its authorized official.

NPPES Registry Identity

NPI1295787919
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameMASS GENERAL BRIGHAM MEDICAL GROUP WESTERN MASSACHUSETTS INC
Location Address30 LOCUST STNorthampton, MA 01060-2052
Mailing Address399 Revolution DrSomerville, MA 02145-1484
Phone(413) 582-2898
Fax(413) 582-2958
Organization SubpartNo
Authorized OfficialLindsay GainerPresident & Coo · (857) 282-3914
Enumeration DateMay 17, 2006
Last NPPES UpdateJune 2, 20252 updates tracked since enumeration
NPPES CertifiedJune 2, 2025
✔ NPI 1295787919 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 15

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Also ListedAnesthesiology · Hospice and Palliative MedicineTaxonomy 207LH0002X
Also ListedInternal MedicineTaxonomy 207R00000X
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X
Also ListedInternal Medicine · Hematology & OncologyTaxonomy 207RH0003X
Also ListedInternal Medicine · Infectious DiseaseTaxonomy 207RI0200X
Also ListedObstetrics & GynecologyTaxonomy 207V00000X
Also ListedPediatricsTaxonomy 208000000X
Also ListedPhysical Medicine & RehabilitationTaxonomy 208100000X
Also ListedPlastic SurgeryTaxonomy 208200000X
Also ListedPsychiatry & Neurology · PsychiatryTaxonomy 2084P0800X
Also ListedRadiology · Vascular & Interventional RadiologyTaxonomy 2085R0204X
Also ListedSurgeryTaxonomy 208600000X
Also ListedPodiatristTaxonomy 213E00000X
Also ListedDurable Medical Equipment & Medical SuppliesTaxonomy 332B00000X
30 LOCUST ST, Northampton, MA 01060
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Other Names 1

Former Legal Business NameCd Practice Associates, Inc

Other Identifiers 6

OtherCJ0816MA · Medicare Railroad
OtherM15904MA · Blue Cross Blue Shield Of Massachusetts
Other614074MA · Tufts Health Plan
Medicaid9774653MA
Other617074MA · Tufts Health Plan
OtherM15904MA · Bcbs Of Mass

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, WellSense Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mass General Brigham Medical Group Western Massachusetts Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

536

Medicare enrollment records show 536 clinicians reassign Medicare billing to Mass General Brigham Medical Group Western Massachusetts Inc, which bills Medicare for the services they deliver. Of these, 67 practice at this address and 150 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 37

Diagnostic Radiology114
Nurse Practitioner76
Emergency Medicine48
Internal Medicine42
Anesthesiology36
Family Practice35
Hospitalist20
Obstetrics/Gynecology17
29 other specialties148

Nearest to this location (20)

See all 536
Olyn Andrade, MD
Emergency Medicine
NPI 1265008544
30 LOCUST ST
Northampton, MA 01060
(413) 582-2000
✔ PECOS✔ Accepts MedicareSame address
Andrew Ciccarelli, M.D.
Diagnostic Radiology
NPI 1407893738
30 LOCUST ST
Northampton, MA 01060
(413) 582-2101
✔ PECOSSame address
Stephen Devries, MD
Emergency Medicine
NPI 1295296721
30 LOCUST ST
Northampton, MA 01060
(413) 582-2109
✔ PECOS✔ Accepts MedicareSame address
Daniel Drimer-Batca, DO
Psychiatry
NPI 1386374403
30 LOCUST ST
Northampton, MA 01060
(413) 582-2000
✔ PECOSSame address
Melissa Gauthier, NP
Nurse Practitioner
NPI 1740106335
30 LOCUST ST
Northampton, MA 01060
(413) 583-2000
✔ PECOSSame address
Brooke Gerlach, MD
Anesthesiology
NPI 1215551528
30 LOCUST ST
Northampton, MA 01060
(413) 582-2000
✔ PECOS✔ Accepts MedicareSame address
Lois Kamugisha
Hematology/Oncology
NPI 1134396948
30 LOCUST ST
Northampton, MA 01060
(413) 582-2900
✔ PECOS✔ Accepts MedicareSame address
Joseph Polino, MD
Diagnostic Radiology
NPI 1669433439
30 LOCUST ST
Northampton, MA 01060
(413) 582-2101
✔ PECOS✔ Accepts MedicareSame address
Maya Rogler, CNM, WHNP
Certified Nurse Midwife (CNM)
NPI 1699399824
30 LOCUST ST
Northampton, MA 01060
(413) 582-2000
✔ PECOSSame address
Ahmad Siddiqui, MD
Hematology/Oncology
NPI 1700873783
30 LOCUST ST
Northampton, MA 01060
(413) 582-2000
✔ PECOS✔ Accepts MedicareSame address
Joseph Strebel, M.D., D.P.T.
Anesthesiology
NPI 1487896551
30 LOCUST ST
Northampton, MA 01060
(413) 582-2000
✔ PECOS✔ Accepts MedicareSame address
Alan Tseng, MD, PHD
Hematology
NPI 1518420520
30 LOCUST ST
Northampton, MA 01060
(413) 582-2900
✔ PECOS✔ Accepts MedicareSame address
Charles Dumont, MD
Pulmonary Disease
NPI 1376606731
30 LOCUST ST
Northampton, MA 01060
(413) 582-2792
✔ PECOS✔ Accepts MedicareSame address
Morris Earle, MD
Pediatric Medicine
NPI 1750370201
30 LOCUST ST
Northampton, MA 01060
(413) 582-2792
✔ PECOSSame address
Katharine Ewall
Hospitalist
NPI 1922217751
30 LOCUST ST
Northampton, MA 01060
(413) 582-2792
✔ PECOS✔ Accepts MedicareSame address
Melanie Greenman, MD
Obstetrics/Gynecology
NPI 1942461710
30 LOCUST ST
Northampton, MA 01060
(413) 586-9866
✔ PECOS✔ Accepts MedicareSame address
Diana Israeli, D.O.
Internal Medicine
NPI 1245541929
30 LOCUST ST
Northampton, MA 01060
(413) 582-2792
✔ PECOS✔ Accepts MedicareSame address
Paul Jodka, MD
Hospice/Palliative Care
NPI 1417061243
30 LOCUST ST
Northampton, MA 01060
(413) 582-2441
✔ PECOS✔ Accepts MedicareSame address
Alys Malcolm, M.D.
Medical Oncology
NPI 1023111531
30 LOCUST ST
Northampton, MA 01060
(413) 582-2900
✔ PECOS✔ Accepts MedicareSame address
Sing Wong, M.D.
Family Practice
NPI 1699038976
30 LOCUST ST
Northampton, MA 01060
(413) 582-2792
✔ PECOS✔ Accepts MedicareSame address
See all 536 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Mass General Brigham Medical Group Western Massachusetts Inc's NPI number?

The NPI number for Mass General Brigham Medical Group Western Massachusetts Inc is 1295787919. It was assigned to this organization in the NPPES registry on May 17, 2006. The provider was formerly known as Cd Practice Associates, Inc.

Where is Mass General Brigham Medical Group Western Massachusetts Inc located?

Mass General Brigham Medical Group Western Massachusetts Inc is located at 30 Locust St, Northampton, MA 01060. The listed phone number is (413) 582-2898.

What is Mass General Brigham Medical Group Western Massachusetts Inc's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Mass General Brigham Medical Group Western Massachusetts Inc enrolled in Medicare?

Yes. Mass General Brigham Medical Group Western Massachusetts Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mass General Brigham Medical Group Western Massachusetts Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 536 clinicians in 37 Medicare specialties reassign their Medicare billing to Mass General Brigham Medical Group Western Massachusetts Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Diagnostic Radiology (114), Nurse Practitioner (76) and Emergency Medicine (48). Of these, 67 practice at this address and 150 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Mass General Brigham Medical Group Western Massachusetts Inc accept?

Health plans from Anthem Blue Cross and Blue Shield and WellSense Health Plan list Mass General Brigham Medical Group Western Massachusetts Inc as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mass General Brigham Medical Group Western Massachusetts Inc was last updated on June 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.