Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marc A Greenwald, MD

Internal Medicine Physician in Brockton, MA · enumerated 2006.

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

National Provider Identifier

1700850807

Verified

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Registry record

Entity type Individual (Type 1)

Name Marc A Greenwald

Credential MD

Sex Male

Practice address 680 Centre Street, Brockton, MA, 02302

Phone (508) 941-7202

Fax (508) 941-6388

Enumeration date Feb 15, 2006

Last updated in NPPES May 4, 2011

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 220491 (MA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
0406618	Other	-	EVERCARE
4094854	Other	-	AETNA US HEALTHCARE
4599158	Other	-	CIGNA HEALTH PLAN
AA10928	Other	-	HARVARD PILGRIM
J27427	Other	-	BLUE SHIELD INDEMNITY
67982	Other	-	FALLON COMM HEALTH PLAN
042472266	Other	-	PRIVATE HEALTHCARE SYSTEM
2225093	Other	-	FIRST HEALTH
042472266	Other	-	THREE RIVERS
467892	Other	-	TUFTS HEALTH PLAN
042472266	Other	-	ONE HEALTH PLAN
J27427	Other	-	BLUE SHIELD HMO BLUE
042472266	Other	-	UNITED HEALTHCARE
2037114	Medicaid	MA	-
784025	Other	-	MVP HEALTH CARE
J27427	Other	-	BLUE CARE ELECT

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

Where does Marc Greenwald practice?

The practice location on file with NPPES is in Brockton, MA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Marc Greenwald?

The National Provider Identifier (NPI) for Marc Greenwald is 1700850807, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Laura Griffin Emergency Medicine Physician · Brockton, MA NPI 1104884600 Monica Miles Psychiatry Physician · Brockton, MA NPI 1386695807 Norah Connolly Perioperative Clinical Nurse Specialist · Brockton, MA NPI 1386995512 Elena Tsonos Registered Dietitian · Brockton, MA NPI 1316338981 Steven Laraia Athletic Trainer · Brockton, MA NPI 1770001307 Ellen Lundin Adult Psychiatric/Mental Health Registered Nurse · Brockton, MA NPI 1922700012

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-05-04.