Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Deborah Suzanne Olszewski, CNP

Nurse Practitioner in Detroit, MI · enumerated 2005.

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

National Provider Identifier

1669473146

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Registry record

Entity type Individual (Type 1)

Name Deborah Suzanne Olszewski

Credential CNP

Sex Female

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

Phone (800) 527-6266

Fax (313) 576-8381

Enumeration date Aug 9, 2005

Last updated in NPPES Jul 29, 2016

Taxonomy & licenses

163WX0200X Oncology Registered Nurse Nursing Service Providers · License 4704101015 (MI) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 4704101015 (MI) Primary

Other identifiers

Identifier	Type	State	Issuer
447374010	Medicaid	MI	-

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

What specialty is Deborah Olszewski?

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

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-07-29.