Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Southwest Michigan Rhuematology Center,P.C.

Q: What is the NPI number for Southwest Michigan Rhuematology Center,P.C.?

The NPI for Southwest Michigan Rhuematology Center,P.C. is 1497727168, a Type 2 (organization) record in the CMS NPPES registry.

Specialist in Saint Joseph, MI · enumerated 2006 · authorized official Tammy Casas, Manager.

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

National Provider Identifier

1497727168

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Southwest Michigan Rhuematology Center,P.C.

Practice address 3950 Hollywood Rd, Suite 280, Saint Joseph, MI, 49085

Phone (269) 408-0990

Fax (269) 408-0993

Enumeration date Feb 6, 2006

Last updated in NPPES Nov 8, 2007

Taxonomy & classification

174400000X Specialist Other Service Providers · License 4301084645 (MI) Primary

Authorized official

Name Tammy Casas

Title Manager

Phone (269) 684-0259

Other identifiers

Identifier	Type	State	Issuer
DC9447	Other	-	MEDICARE - RR

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 Southwest Michigan Rhuematology Center,P.C.?

The NPI for Southwest Michigan Rhuematology Center,P.C. is 1497727168, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Southwest Michigan Rhuematology Center,P.C.?

NPPES lists Tammy Casas (Manager) as the authorized official for this organization.

Providers at this address

Browse all →

Lowell Smith Hematology & Oncology Physician · Saint Joseph, MI NPI 1689678021 Peter Spencer Neurology Physician · Saint Joseph, MI NPI 1669479432 Robert Ward Neurology Physician · Saint Joseph, MI NPI 1598762379 John Gosling Internal Medicine Physician · Saint Joseph, MI NPI 1851387302 Majdi Al-Najjar Endocrinology, Diabetes & Metabolism Physician · Saint Joseph, MI NPI 1578540852 Diabetes and Endocrinology Center of Southwest Michigan Specialist · Saint Joseph, MI NPI 1952373623 Dennis Szymanski Neurological Surgery Physician · Saint Joseph, MI NPI 1609845940 Mark Smalley Internal Medicine Physician · Saint Joseph, MI NPI 1477512168

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-08.