Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Rachel J Berger, M.D.

Internal Medicine Physician in Somerville, MA · enumerated 2006.

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

National Provider Identifier

1326019456

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Registry record

Entity type Individual (Type 1)

Name Rachel J Berger

Credential M.D.

Sex Female

Practice address 40 Holland St, Internal Medicine, Somerville, MA, 02144

Phone (617) 629-6350

Fax (617) 629-6067

Enumeration date Jan 27, 2006

Last updated in NPPES Oct 21, 2020

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 72346 (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
072346	Other	MA	TUFTS
3060802	Medicaid	MA	-
PV477	Other	MA	HARVARD PILGRIM
J09679	Other	MA	BLUE CROSS

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 is the NPI number for Rachel Berger?

The National Provider Identifier (NPI) for Rachel Berger is 1326019456, a Type 1 (individual) record in the CMS NPPES registry.

Where does Rachel Berger practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-10-21.