Ghassan Naisan

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

5315226786 Issued in MI

Practice address

4000 Wellness Dr
Midland, MI 48670-2000

Phone

(989) 839-1644

NPI assigned

Jun 15, 2021

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in MI

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Internal Medicine

Education

West Virginia School of Osteopathic Medicine, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Sound Inpatient Physicians-Michigan PLLCGroup PAC ID 5395896849, 168 clinicians

Covenant Medical Center, Inc.Group PAC ID 2769387778, 488 clinicians

Mymichigan Medical GroupGroup PAC ID 4981501939, 174 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mymichigan Medical Center Midland Hospital, Midland, MI, CCN 230222
• Ascension Genesys Hospital Hospital, Grand Blanc, MI, CCN 230197
• Mymichigan Medical Center Clare Hospital, Clare, MI, CCN 230180
• Saint Mary'S Standish Community Hospital Hospital, Standish, MI, CCN 231305
• Covenant Medical Center Hospital, Saginaw, MI, CCN 230070

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: gnaisan1142637@direct.hfhs.org
• Direct secure messaging: gnaisan171107@direct.covenanthealthcare.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Covenant Medical Center, Inc.

  • Emergency Medicine Physician
  • Saginaw, MI
  • NPI 1972590412
  Medicare reassignment Care Compare group NPD
• Mymichigan Medical Group

  • Family Medicine Physician
  • Midland, MI
  • NPI 1740230127
  Medicare reassignment Care Compare group NPD
• Sound Inpatient Physicians-Michigan, PLLC

  • Internal Medicine Physician
  • Kalamazoo, MI
  • NPI 1093967861
  Medicare reassignment Care Compare group NPD
• Edward W. Sparrow Hospital Association

  • Pediatrics Physician
  • Lansing, MI
  • NPI 1831139088
  Medicare reassignment
• Mymichigan Medical Center Sault

  • Emergency Medical Services (Emergency Medicine) Physician
  • Sault Sainte Marie, MI
  • NPI 1639190382
  Medicare reassignment
• Sparrow Specialty Hospital

  • Long Term Care Hospital
  • Lansing, MI
  • NPI 1437655842
  Medicare reassignment
• Covenant Medical Center, Inc

  • Family Medicine Physician
  • Saginaw, MI
  • NPI 1619412376

  Internal Medicine

  NPD
• Covenant Medical Center, Inc.

  • Family Medicine Physician
  • Saginaw, MI
  • NPI 1366597544

  Internal Medicine

  NPD
• Mymichigan Medical Center Alpena

  • Rural Health Clinic/Center
  • Alpena, MI
  • NPI 1144722604
  NPD
• Mymichigan Medical Center Sault

  • Anesthesiology Physician
  • Sault Sainte Marie, MI
  • NPI 1457305674
  NPD
• Mymichigan Medical Center Sault

  • Anatomic Pathology & Clinical Pathology Physician
  • Sault Sainte Marie, MI
  • NPI 1518819739
  NPD
• Mymichigan Medical Center Sault

  • Family Medicine Physician
  • Sault Sainte Marie, MI
  • NPI 1699832279
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Covenant Medical Center, Inc.

  • General Acute Care Hospital
  • Saginaw, MI
  • NPI 1588656946
  Care Compare affiliation
• Henry Ford Health Genesys Hospital

  • General Acute Care Hospital
  • Grand Blanc, MI
  • NPI 1407877723
  Care Compare affiliation
• Mymichigan Medical Center Clare

  • General Acute Care Hospital
  • Clare, MI
  • NPI 1568414589
  Care Compare affiliation
• Mymichigan Medical Center Midland

  • Multi-Specialty Clinic/Center
  • Midland, MI
  • NPI 1205889490

  Hospital

  Care Compare affiliation
• Mymichigan Medical Center Midland

  • General Acute Care Hospital
  • Midland, MI
  • NPI 1376973149
  Care Compare affiliation
• Mymichigan Medical Center Midland

  • General Acute Care Hospital
  • Midland, MI
  • NPI 1902841414
  Care Compare affiliation
• Mymichigan Medical Center Standish

  • Critical Access Hospital
  • Standish, MI
  • NPI 1659465094
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1623715200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776816000000",
    "number": "1104494236",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4000 WELLNESS DR",
            "city": "MIDLAND",
            "state": "MI",
            "postal_code": "486702000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4000 WELLNESS DR",
            "city": "MIDLAND",
            "state": "MI",
            "postal_code": "486702000",
            "telephone_number": "989-839-1644"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1 Genesys Pkwy",
            "address_purpose": "LOCATION",
            "city": "Grand Blanc",
            "state": "MI",
            "postal_code": "484398065",
            "country_code": "US",
            "telephone_number": "810-606-5000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "NAISAN",
        "first_name": "GHASSAN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-06-15",
        "last_updated": "2026-04-22",
        "certification_date": "2026-04-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "MI",
            "license": "5315226786",
            "primary": false
        },
        {
            "code": "208D00000X",
            "taxonomy_group": "",
            "desc": "General Practice",
            "state": "MI",
            "license": "5151015294",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MI",
            "license": "5315226786",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• David Leonard Nadolski, M.D.
• Ambria Joy Nagel
• Ann Nagley
• Ranim Nahab, RAN
• Naheed Rizvi MD PLLC
• Mark A Najdowski
• Ashley Nardone, DO
• Jennifer Nash, M.D.
• Leaisha Nash
• Samuel Nassif

• Internal Medicine Physician in Midland, MI
• Providers in Midland, MI by specialty
• Internal Medicine Physician in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 22, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.