NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Sarah Pritchett Zimmerman, MD

Pediatrics Physician in Waltham, MA · enumerated 2007.

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

National Provider Identifier

1295861961

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Registry record

Entity type Individual (Type 1)
Name Dr. Sarah Pritchett Zimmerman
Credential MD
Sex Female
Practice address 40 2nd Ave Ste 400, Waltham, MA, 02451
Enumeration date Feb 26, 2007
Last updated in NPPES May 2, 2018

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License L-224892 (MA) Secondary
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 273874 (MA) Secondary
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 2008-00638 (NC) 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
5910823 Medicaid NC -

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

Is NPI 1295861961 active?
Yes, as of the latest NPPES snapshot, NPI 1295861961 is active (record last updated 2018-05-02).
How do I verify Sarah Zimmerman's NPI record?
Cross-check NPI 1295861961 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-02.