Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark J. Berenberg, M.D.

Pulmonary Disease Physician in Quincy, MA · enumerated 2005.

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

National Provider Identifier

1942298971

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark J. Berenberg

Credential M.D.

Sex Male

Practice address 500 Congress St, Suite 3c, Quincy, MA, 02169

Phone (781) 682-0600

Enumeration date Oct 13, 2005

Last updated in NPPES Jun 10, 2013

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 45619 (MA) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 45619 (MA) Secondary

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
23047	Other	-	HARVARD PILGRIM HEALTHCAR
0158623	Medicaid	MA	-
000000020777	Other	MA	BOSTON HEALTH NET
290014541	Other	-	RAILROAD MEDICARE
B10159102	Other	-	CIGNA HEALTHCARE
0004320	Other	MA	NEIGHBORHOOD HEALTH PLAN
3124	Other	-	AETNA/US HEALTHCARE
48 - 00036	Other	MD	UNITED HEALTHCARE OF NE
702305	Other	-	TUFTS ASSOCIATED HEALTH P
E05697	Other	-	BLUE CROSS/BLUE SHIELD

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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

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.

What specialty is Mark Berenberg?

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

Other providers at this practice address

Browse all →

Jeanne Benoit Adult Health Nurse Practitioner · Quincy, MA NPI 1942200324 Mary Hopwood Adult Health Nurse Practitioner · Quincy, MA NPI 1891795811 Marilyn Green Adult Health Nurse Practitioner · Quincy, MA NPI 1720089683 Helen Jenest Adult Health Nurse Practitioner · Quincy, MA NPI 1407857378 Catherine Milch Cardiovascular Disease Physician · Quincy, MA NPI 1568463248 Robert Weinberg Internal Medicine Physician · Quincy, MA NPI 1326049065 Nancy Drew Internal Medicine Physician · Quincy, MA NPI 1285635979 Guy Spinelli Internal Medicine Physician · Quincy, MA NPI 1104827450

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-10.