Dr. Roger Allen Siminski, D.C.

Dr. Roger Allen Siminski is a Chiropractor provider (Chiropractor) practicing in Owosso, MI, registered in the NPPES registry with NPI 1801992037 since 2006. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1801992037
Entity type	Individual (Type 1)
Name	Dr. Roger Allen Siminski
Credential	D.C.
Sex	Male
Practice address	Owosso, MI, 48867
Phone	9897232039
Fax	9897257723
Enumeration date	2006-09-15
Last updated in NPPES	2007-07-08

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
111N00000X	Chiropractor	Primary	RS002729	MI

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier	Type	State	Issuer
4429081	Medicaid	MI	—

Copy-ready billing details

Provider: Roger Siminski, D.C.
NPI: 1801992037
Taxonomy: 111N00000X (Chiropractor)
Address: Owosso, MI, 48867

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1245387984	Siminski Chiropractic Clinic, P.C.	Organization	Chiropractor	Owosso, MI
1770754798	Douglas Keller	Individual	Chiropractor	Owosso, MI
1023395472	Krystal Siminski	Individual	Chiropractor	Owosso, MI
1144594110	Kyle Zimmerman	Individual	Chiropractor	Owosso, MI
1386274173	Keller Chiropractic of Owosso P.C.	Organization	Chiropractor	Owosso, MI

Verify this record

Cross-check NPI 1801992037 against the authoritative CMS record: view Dr. Roger Allen Siminski on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

Is NPI 1801992037 active?

Yes — as of the latest NPPES snapshot, NPI 1801992037 is active (record last updated 2007-07-08).

How do I verify Roger Siminski's NPI record?

Cross-check NPI 1801992037 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.