Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Lawrence L Greenwald, MD

Cardiovascular Disease Physician in Upton, MA · enumerated 2006.

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

National Provider Identifier

1881653152

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Lawrence L Greenwald

Credential MD

Sex Male

Practice address 236 Milford St, Upton, MA, 01568

Phone (508) 473-1015

Enumeration date Mar 23, 2006

Last updated in NPPES Jul 22, 2019

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 81064 (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
0006230	Other	-	NEIGHBORHOOD HEALTH PLAN
3138321	Medicaid	MA	-
J31274	Other	MA	BCBS
081064	Other	-	TUFTS
300472	Other	-	HPHC
060057793	Other	-	RR MEDICARE
43556	Other	-	FALLON

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Lawrence Greenwald?

Lawrence Greenwald is registered in NPPES with the primary taxonomy of Cardiovascular Disease Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Hopedale Cardiology, LLP Cardiovascular Disease Physician · Upton, MA NPI 1265400402 Scott Brownstein Cardiovascular Disease Physician · Upton, MA NPI 1962471524 Lindsay Shepard Physician Assistant · Upton, MA NPI 1922068485 Sharon Forsmo Cardiovascular Disease Physician · Upton, MA NPI 1841258092 Kristen Franklin Cardiovascular Disease Physician · Upton, MA NPI 1205854718 Hopedale Cardiology, PC Specialist · Upton, MA NPI 1487851580 Giorgio Napoli Cardiovascular Disease Physician · Upton, MA NPI 1225398282 Erika Faircloth Cardiovascular Disease Physician · Upton, MA NPI 1346774064

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-07-22.