Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ghassan Naisan

Internal Medicine Physician in Midland, MI · enumerated 2021.

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

National Provider Identifier

1104494236

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Registry record

Entity type Individual (Type 1)

Name Ghassan Naisan

Sex Male

Practice address 4000 Wellness Dr, Midland, MI, 48670

Phone (989) 839-1644

Enumeration date Jun 15, 2021

Last updated in NPPES Apr 22, 2026

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 5315226786 (MI) Secondary

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 5151015294 (MI) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 5315226786 (MI) Primary

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 Ghassan Naisan?

Ghassan Naisan is registered in NPPES with the primary taxonomy of Internal Medicine 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 2026-04-22.