Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Susan Lynn Siepierski, PA

Physician Assistant in Detroit, MI · enumerated 2005.

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

National Provider Identifier

1609857952

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Registry record

Entity type Individual (Type 1)

Name Mrs. Susan Lynn Siepierski

Credential PA

Sex Female

Practice address 4100 John R St, Karmanos Cancer Center, Detroit, MI, 48201

Phone (800) 527-6266

Fax (313) 993-8669

Enumeration date Nov 11, 2005

Last updated in NPPES Apr 26, 2019

Taxonomy & licenses

363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 5601001905 (MI) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 5601001905 (MI) Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Susan Siepierski's NPI record?

Cross-check NPI 1609857952 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1609857952 active?

Yes, as of the latest NPPES snapshot, NPI 1609857952 is active (record last updated 2019-04-26).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-04-26.