Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Donna Marie Steinwachs, NP

Family Nurse Practitioner in Williamsville, NY · enumerated 2005.

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

National Provider Identifier

1386644540

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Registry record

Entity type Individual (Type 1)

Name Donna Marie Steinwachs

Credential NP

Sex Female

Practice address 18 Limestone Dr, Suite 5, Williamsville, NY, 14221

Phone (716) 632-1400

Fax (716) 632-5316

Enumeration date Jul 28, 2005

Last updated in NPPES Aug 13, 2010

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License F330738-1 (NY) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
00026499601	Other	NY	UNIVERA
9512090	Other	NY	IHA

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

What is the NPI number for Donna Steinwachs?

The National Provider Identifier (NPI) for Donna Steinwachs is 1386644540, a Type 1 (individual) record in the CMS NPPES registry.

Where does Donna Steinwachs practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-08-13.