NPI Portal NPI Lookup & Verification

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

Anna Zimmerman, M.D.

Internal Medicine Physician in West Haven, CT · enumerated 2015.

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

National Provider Identifier

1942689682

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Anna Zimmerman
Credential M.D.
Sex Female
Practice address West Haven, CT, 06516
Enumeration date May 27, 2015
Last updated in NPPES Jun 19, 2019

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

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 60300 (CT) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

How do I verify Anna Zimmerman's NPI record?
Cross-check NPI 1942689682 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1942689682 active?
Yes, as of the latest NPPES snapshot, NPI 1942689682 is active (record last updated 2019-06-19).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-06-19.