Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sidney Norborne Martin, MD

Orthopaedic Surgery Physician in Flint, MI · enumerated 2005.

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

National Provider Identifier

1720069008

Verified

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Registry record

Entity type Individual (Type 1)

Name Sidney Norborne Martin

Credential MD

Sex Male

Practice address 4466 W Bristol Rd, Flint, MI, 48507

Phone (810) 733-1200

Fax (810) 733-0688

Enumeration date Nov 14, 2005

Last updated in NPPES Sep 19, 2013

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 4301407438 (MI) Primary

207XX0005X Sports Medicine (Orthopaedic Surgery) Physician Allopathic & Osteopathic Physicians · License 4301407438 (MI) Secondary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
0B51156	Other	MI	GROUP BCBS
4081320	Medicaid	MI	-
CB0923	Other	-	GROUP RAILROAD MEDICARE
0N45090	Other	-	GROUP MEDICARE
1215930490	Other	-	TYPE 2 NPI

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.

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Frequently asked questions

What specialty is Sidney Martin?

Sidney Martin is registered in NPPES with the primary taxonomy of Orthopaedic Surgery Physician. 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.

Other providers at this practice address

Browse all →

Family Orthopedic Associates P L C Orthopaedic Surgery Physician · Flint, MI NPI 1215930490 Williams Orthotic Services, Inc. Prosthetic/Orthotic Supplier · Flint, MI NPI 1306847363 Arun Dass Orthopaedic Surgery Physician · Flint, MI NPI 1700867017 Paul Telehowski Orthopaedic Surgery Physician · Flint, MI NPI 1790766004 Matthew Hettle Physical Medicine & Rehabilitation Physician · Flint, MI NPI 1134100415 Susan Mosier-Laclair Orthopaedic Surgery Physician · Flint, MI NPI 1437130713 Stephen Burton Orthopaedic Surgery Physician · Flint, MI NPI 1679554968 Nathaniel Narten Orthopaedic Surgery Physician · Flint, MI NPI 1669453957

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-09-19.