NPI Portal NPI Lookup & Verification

Marc Gregory Webb, MD

Marc Gregory Webb is a Surgery Physician provider (Surgery) practicing in Southfield, MI, registered in the NPPES registry with NPI 1083672968 since 2006. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1083672968
Entity type Individual (Type 1)
Name Marc Gregory Webb
Credential MD
Sex Male
Practice address Southfield, MI, 48076
Phone 2483551100
Fax 2483552717
Enumeration date 2006-05-02
Last updated in NPPES 2025-07-24

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208600000X Surgery Physician Primary 4301051199 MI

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

Copy-ready billing details
Provider: Marc Webb, MD
NPI: 1083672968
Taxonomy: 208600000X (Surgery Physician)
Address: Southfield, MI, 48076

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1093823163 Gary Warr Individual Dentist Southfield, MI
1609077783 Michigan Vascular Access, PC Organization Vascular Surgery Physician Southfield, MI
1255648077 John Gibson Individual Chiropractor Southfield, MI
1891469912 Gary J Warr DDS Organization Dental Clinic/Center Southfield, MI

Verify this record

Cross-check NPI 1083672968 against the authoritative CMS record: view Marc Gregory Webb 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

What specialty is Marc Webb?
Marc Webb is registered in NPPES with the primary taxonomy of 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-07-24.