Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Geoffrey A Sandman, M.D.

Orthopaedic Trauma Physician in Byron Center, MI · enumerated 2005 · practices at Advantage Health Saint Mary'S Medical Group.

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

National Provider Identifier

1760481782

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Registry record

Entity type Individual (Type 1)

Name Dr. Geoffrey A Sandman

Credential M.D.

Sex Male

Practice address 2373 64th St Sw Ste 2700, Byron Center, MI, 49315

Phone (616) 465-5910

Fax (616) 465-5911

Enumeration date Jul 20, 2005

Last updated in NPPES Nov 1, 2024

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 4301068145 (MI) Secondary

207XX0801X Orthopaedic Trauma Physician Allopathic & Osteopathic Physicians · License 4301068145 (MI) Primary

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

Geoffrey Sandman is registered in NPPES with the primary taxonomy of Orthopaedic Trauma 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-01.