NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Natalie L. Cohen, MD

Internal Medicine Physician in Acton, MA · enumerated 2011 · practices at Acton Medical Associates, PC.

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

National Provider Identifier

1700179678

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Registry record

Entity type Individual (Type 1)
Name Natalie L. Cohen
Credential MD
Sex Female
Practice address Acton, MA, 01720
Phone (978) 635-8700
Fax (978) 635-8920
Enumeration date May 25, 2011
Last updated in NPPES Feb 2, 2017

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 258083 (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
110099716A Medicaid MA -

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 Natalie Cohen?
The National Provider Identifier (NPI) for Natalie Cohen is 1700179678, a Type 1 (individual) record in the CMS NPPES registry.
Where does Natalie Cohen practice?
The practice location on file with NPPES is in Acton, MA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-02.