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

Dr. Amy Himmelstein

Optometrist in Bristol, CT · enumerated 2006 · practices at Optometric Associates of Bristol, LLC.

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

National Provider Identifier

1245257153

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Registry record

Entity type Individual (Type 1)

Name Dr. Amy Himmelstein

Sex Female

Practice address Bristol, CT, 06010

Phone (860) 582-2166

Fax (860) 582-8044

Enumeration date Jul 16, 2006

Last updated in NPPES May 29, 2024

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

Taxonomy & licenses

152W00000X Optometrist Eye and Vision Services Providers · License 1085 (CT) Primary

Other identifiers

Identifier	Type	State	Issuer
004133823	Medicaid	CT	-
410000961	Other	-	MEDICARE ID - TYPE UNSPECIFIED

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

Where does Amy Himmelstein practice?

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

What is the NPI number for Amy Himmelstein?

The National Provider Identifier (NPI) for Amy Himmelstein is 1245257153, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Optometric Associates of Bristol, LLC Optometrist · Bristol, CT NPI 1114287505

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-29.