Ismail Alan Gregory, MD

Primary specialty

Critical Care Medicine (Internal Medicine) PhysicianTaxonomy code 207RC0200X

License

93938 Issued in GA

Practice address

960 Johnson Ferry Rd Ste 500
Atlanta, GA 30342-1630

Phone

(404) 257-0006

Fax

(404) 851-1316

NPI assigned

Apr 5, 2018

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in GA

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

Critical Care (Intensivists)

Education

Wayne State University School of Medicine, 2018

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Northside Primary Care Professional Services,LLCGroup PAC ID 9638343924, 313 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Northside Hospital Hospital, Atlanta, GA, CCN 110161

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

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.

• Northside Primary Care Professional Services,LLC

  • Family Medicine Physician
  • Atlanta, GA
  • NPI 1922397553
  Medicare reassignment Care Compare group NPD
• Northside Primary Care Professional Services, LLC

  • Urgent Care Clinic/Center
  • Dawsonville, GA
  • NPI 1215369715
  NPD

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

• Northside Hospital, Inc.

  • General Acute Care Hospital
  • Atlanta, GA
  • NPI 1457396079
  Care Compare affiliation

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

{
    "created_epoch": "1522886400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1777939200000",
    "number": "1851897045",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "960 JOHNSON FERRY RD STE 500",
            "city": "ATLANTA",
            "state": "GA",
            "postal_code": "303421630",
            "telephone_number": "404-257-0006",
            "fax_number": "404-851-1316"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "960 JOHNSON FERRY RD STE 500",
            "city": "ATLANTA",
            "state": "GA",
            "postal_code": "303421630",
            "telephone_number": "404-257-0006",
            "fax_number": "404-851-1316"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREGORY",
        "first_name": "ISMAIL",
        "middle_name": "ALAN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-04-05",
        "last_updated": "2026-05-05",
        "certification_date": "2026-05-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "GA",
            "license": "93938",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jonardy Luis Gregoire
• Gregory J. Mackay, M. D., P. C.
• Avery Jane Gregory
• Charles Edward Gregory, D.D.S.
• Courtney Morrell Gregory, NP
• Jahlecia Gregory
• Leasette Monet Gregory
• Sandra Lynn Gregory, MD
• Kristyn M Greifer, MD
• Michelle Louise Greissinger, DMD

• Critical Care Medicine (Internal Medicine) Physician in Atlanta, GA
• Providers in Atlanta, GA by specialty
• Critical Care Medicine (Internal Medicine) Physician in Georgia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 5, 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.