Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Susan Gerschefski, RN

Registered Nurse in Hamden, CT · enumerated 2007.

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

National Provider Identifier

1164635629

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Registry record

Entity type Individual (Type 1)

Name Susan Gerschefski

Credential RN

Sex Female

Practice address 9 Washington Ave, Hamden, CT, 06518

Phone (203) 248-3049

Enumeration date May 8, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License E61200 (CT) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

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 Susan Gerschefski?

Susan Gerschefski is registered in NPPES with the primary taxonomy of Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Louis Iorio Orthopaedic Surgery Physician · Hamden, CT NPI 1043216575 Maria Shanley Orthopedic Physical Therapist · Hamden, CT NPI 1700883493 Maria Rhee Obstetrics & Gynecology Physician · Hamden, CT NPI 1518965888 Richard Mangi Allergy & Immunology (Internal Medicine) Physician · Hamden, CT NPI 1619976917 Kristin Peters Physical Therapist · Hamden, CT NPI 1487640967 Lisa Visscher Pediatrics Physician · Hamden, CT NPI 1437118809 Christopher Canny Pediatrics Physician · Hamden, CT NPI 1346209715 Vanessa Pomarico-Denino Primary Care Nurse Practitioner · Hamden, CT NPI 1801832803

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.