NPI Portal NPI Lookup & Verification

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

Heidi Fischer, M.D.

Ophthalmology Physician in Wellesley, MA · enumerated 2006 · practices at Newtoneye PC.

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

National Provider Identifier

1134167430

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Registry record

Entity type Individual (Type 1)
Name Heidi Fischer
Credential M.D.
Sex Female
Practice address Wellesley, MA, 02481
Phone (781) 235-5100
Fax (781) 235-2444
Enumeration date Jun 2, 2006
Last updated in NPPES Sep 2, 2016

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

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 158850 (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
3205070 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.

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Frequently asked questions

How do I verify Heidi Fischer's NPI record?
Cross-check NPI 1134167430 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1134167430 active?
Yes, as of the latest NPPES snapshot, NPI 1134167430 is active (record last updated 2016-09-02).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-09-02.