Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Sandra G Witmer

Psychiatric/Mental Health Clinical Nurse Specialist in Rochester, NY · enumerated 2015.

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

National Provider Identifier

1235507161

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Registry record

Entity type Individual (Type 1)

Name Mrs. Sandra G Witmer

Sex Female

Practice address 300 Crittenden Blvd, Rochester, NY, 14642

Phone (585) 275-3569

Fax (585) 273-1066

Enumeration date Sep 9, 2015

Last updated in NPPES Sep 9, 2015

Taxonomy & licenses

364SP0808X Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License 212825 (NY) Primary

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Sandra Witmer?

Sandra Witmer is registered in NPPES with the primary taxonomy of Psychiatric/Mental Health Clinical Nurse Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-09.