Stephen Harris Keiser, MD

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

21254 Issued in SC

Practice address

15 Park Creek Dr
Greenville, SC 29605-4270

Phone

(864) 271-7761

Fax

(864) 235-2045

NPI assigned

Jun 25, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 5

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in SC, TX2 enrollments

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 2

Specialty

Family PracticeAlso: Sports Medicine

Education

University of Missouri, Columbia School of Medicine, 1991

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Prisma Health University Medical GroupGroup PAC ID 8325950983, 2,467 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Prisma Health Greenville Memorial Hospital Hospital, Greenville, SC, CCN 420078

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: skeiser123049@direct.ghs.myhfn.org

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.

• Prisma Health University Medical Group

  • Family Medicine Physician
  • Greenville, SC
  • NPI 1295763217
  Medicare reassignment Care Compare group NPD
• Cirrusmd Medical Group of Delaware, P.a.

  • Family Medicine Physician
  • Denver, CO
  • NPI 1922664200

  SC

  Medicare reassignment NPD
• Cmdpn Medical Group of Texas, P.a.

  • Family Medicine Physician
  • Dallas, TX
  • NPI 1174082150
  Medicare reassignment NPD
• Prisma Health University Medical Group

  • Gynecology Physician
  • Greer, SC
  • NPI 1003619313
  NPD
• St Francis Physician Services Inc

  • Family Medicine Physician
  • Greenville, SC
  • NPI 1295769438
  NPD (past)
• St Francis Physician Services Inc

  • Internal Medicine Physician
  • Greenville, SC
  • NPI 1871895771

  Family Medicine

  NPD (past)
• University Family Medicine Associates, PLLC

  • Clinic/Center
  • Jackson, MS
  • NPI 1396846648
  NPD (past)
• University Orthopedic Associates, PLLC

  • Orthopaedic Surgery Physician
  • Jackson, MS
  • NPI 1477662211
  NPD (past)
• University Radiation Oncology Consultants, PLLC

  • Radiation Oncology Physician
  • Jackson, MS
  • NPI 1316026818
  NPD (past)

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

• Prisma Health-Upstate

  • Medically Fragile Infants and Children Day Care
  • Greenville, SC
  • NPI 1093168064

  Hospital

  Care Compare affiliation
• Prisma Health-Upstate

  • General Acute Care Hospital
  • Greenville, SC
  • NPI 1114473212
  Care Compare affiliation
• Prisma Health-Upstate

  • General Acute Care Hospital
  • Greenville, SC
  • NPI 1174079271
  Care Compare affiliation
• Prisma Health-Upstate

  • Radiology Clinic/Center
  • Greenville, SC
  • NPI 1235685330

  Hospital

  Care Compare affiliation
• Prisma Health-Upstate

  • Sleep Disorder Diagnostic Clinic/Center
  • Greenville, SC
  • NPI 1275086431

  Hospital

  Care Compare affiliation
• Prisma Health-Upstate

  • Multi-Specialty Clinic/Center
  • Greenville, SC
  • NPI 1285180307

  Hospital

  Care Compare affiliation
• Prisma Health-Upstate

  • Clinic/Center
  • Greenville, SC
  • NPI 1316492218

  Hospital

  Care Compare affiliation
• Prisma Health-Upstate

  • General Acute Care Hospital
  • Greenville, SC
  • NPI 1326884982
  Care Compare affiliation
• Prisma Health-Upstate

  • Developmental Disabilities Clinic/Center
  • Greenville, SC
  • NPI 1336695436

  Hospital

  Care Compare affiliation
• Prisma Health-Upstate

  • General Acute Care Hospital
  • Greenville, SC
  • NPI 1366998460
  Care Compare affiliation
• Prisma Health-Upstate

  • General Acute Care Hospital
  • Greenville, SC
  • NPI 1396207221
  Care Compare affiliation
• Prisma Health-Upstate

  • Developmental Disabilities Clinic/Center
  • Greenville, SC
  • NPI 1396291407

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1151193600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761264000000",
    "number": "1659307007",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "300 E MCBEE AVE FL 4",
            "city": "GREENVILLE",
            "state": "SC",
            "postal_code": "296012842",
            "telephone_number": "864-695-6697"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "15 PARK CREEK DR",
            "city": "GREENVILLE",
            "state": "SC",
            "postal_code": "296054270",
            "telephone_number": "864-271-7761",
            "fax_number": "864-235-2045"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2 Innovation Drive",
            "address_2": "Suite 250",
            "address_purpose": "LOCATION",
            "city": "Greenville",
            "state": "SC",
            "postal_code": "29607",
            "country_code": "US",
            "telephone_number": "864-365-0115",
            "fax_number": "864-365-0125",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2 Innovation Drive",
            "address_2": "Suite 250",
            "address_purpose": "LOCATION",
            "city": "Greenville",
            "state": "SC",
            "postal_code": "29607",
            "country_code": "US",
            "telephone_number": "864-365-0115",
            "fax_number": "864-365-0125",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2A Cleveland Ct",
            "address_purpose": "LOCATION",
            "city": "Greenville",
            "state": "SC",
            "postal_code": "296072414",
            "country_code": "US",
            "telephone_number": "864-271-7761",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KEISER",
        "first_name": "STEPHEN",
        "middle_name": "HARRIS",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-25",
        "last_updated": "2025-10-24",
        "certification_date": "2025-10-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "SC",
            "license": "21254",
            "primary": true
        },
        {
            "code": "207QS0010X",
            "taxonomy_group": "",
            "desc": "Family Medicine, Sports Medicine",
            "state": "SC",
            "license": "21254",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LICENSE",
            "identifier": "21254",
            "state": "SC"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "PHARMACY",
            "identifier": "BK5073123",
            "state": "MS"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "T54562",
            "state": "SC"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "LICENSE",
            "identifier": "19336",
            "state": "MS"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MEDICARE",
            "identifier": "P00622802",
            "state": "MS"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "skeiser123049@direct.ghs.myhfn.org",
            "affiliation": "N",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "Provider",
            "address_1": "2A Cleveland Ct",
            "city": "Greenville",
            "state": "SC",
            "country_code": "US",
            "postal_code": "296072414",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Micah Judd Keeno, DO
• Aurel Keew, PA
• Dayley Shea Wilson Keil, MD
• Lukas G. Keil, MD
• Sharon D. Keiser, M.D.
• Laura Elizabeth Keister, CRNA
• Beverly Marie Keith
• Haley Nottingham Keith, PA-C
• Justin Keith, MS, ATC
• Sarah Christine Keith

• Family Medicine Physician in Greenville, SC
• Providers in Greenville, SC by specialty
• Family Medicine Physician in South Carolina

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 24, 2025; 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.