Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Holly Michelle Siewert, RN, BSN

Registered Nurse in Bad Axe, MI · enumerated 2020.

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

National Provider Identifier

1902415144

Verified

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Registry record

Entity type Individual (Type 1)

Name Holly Michelle Siewert

Credential RN, BSN

Sex Female

Practice address Bad Axe, MI, 48413

Phone (989) 553-5648

Enumeration date Jul 23, 2020

Last updated in NPPES Jul 23, 2020

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 4704293884 (MI) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Holly Siewert?

The National Provider Identifier (NPI) for Holly Siewert is 1902415144, a Type 1 (individual) record in the CMS NPPES registry.

Where does Holly Siewert practice?

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

Other providers at this practice address

Browse all →

Huron County Community Mental Health Authority Mental Health Clinic/Center (Including Community Mental Health Center) · Bad Axe, MI NPI 1659485514 Yolanda Edler Psychiatry Physician · Bad Axe, MI NPI 1023125622 Karen Link Professional Counselor · Bad Axe, MI NPI 1437228533 Lynda Vargo Clinical Social Worker · Bad Axe, MI NPI 1598807828 Huron County Community Mental Health Authority Community/Behavioral Health Agency · Bad Axe, MI NPI 1669796694 Carmen Schantz Clinical Social Worker · Bad Axe, MI NPI 1154615953 Eric Read Clinical Social Worker · Bad Axe, MI NPI 1033460829 Betty Smith Professional Counselor · Bad Axe, MI NPI 1053659805

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-23.