Garrett Clark Martin, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

D67934 Issued in MD

Practice address

13901 E Jefferson Ave
Detroit, MI 48215-2720

Phone

(313) 822-0900

Fax

(313) 822-0950

NPI assigned

Jul 10, 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 1

Medicare fee-for-service enrollment

Enrolled in MD, DC, GA3 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 3

Specialty

HospitalistAlso: Internal Medicine

Education

Meharry Medical College School of Medicine, 2001

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Synergy Medical Group LLCGroup PAC ID 0749644177, 102 clinicians

Galen Inpatient Physicians PCGroup PAC ID 3678464633, 1,045 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Frederick Health Hospice Hospice, Frederick, MD, CCN 211516
• Holy Cross Hospital Hospital, Silver Spring, MD, CCN 210004
• Sterling Care Bethesda Nursing home, Bethesda, MD, CCN 215187

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.

• Galen Inpatient Physicians PC

  • Hospitalist Physician
  • Germantown, MD
  • NPI 1225923154

  DC

  Medicare reassignment Care Compare group NPD
• Synergy Medical Group LLC

  • Internal Medicine Physician
  • Lutherville, MD
  • NPI 1912736901
  Medicare reassignment Care Compare group NPD
• Chatham Hosptialists, LLC

  • Internal Medicine Physician
  • Savannah, GA
  • NPI 1336290667
  Medicare reassignment NPD
• Hospitalist Medicine Physicians of Maryland PC

  • Hospitalist Physician
  • Frederick, MD
  • NPI 1992945471

  DC, Internal Medicine

  Medicare reassignment NPD
• Usacs Integrated Acute Care Services of Maryland, LLC

  • Internal Medicine Physician
  • Elkton, MD
  • NPI 1922598929

  DC

  Medicare reassignment NPD
• Synergy Medical Group LLC

  • Vascular Surgery Physician
  • Timonium, MD
  • NPI 1679363089

  DC

  Medicare reassignment
• Galen Inpatient Physicians PC

  • Hospitalist Physician
  • Los Angeles, CA
  • NPI 1205787686
  NPD
• Galen Inpatient Physicians PC

  • Hospitalist Physician
  • Silver Spring, MD
  • NPI 1417842345
  NPD
• Hospitalist Medicine Physicians of Maryland PC

  • Internal Medicine Physician
  • Frederick, MD
  • NPI 1366240111
  NPD
• Synergy Medical Group LLC

  • Nephrology Physician
  • Baltimore, MD
  • NPI 1043053523

  Internal Medicine

  NPD
• Synergy Medical Group LLC

  • Nephrology Physician
  • Timonium, MD
  • NPI 1144902776

  Internal Medicine

  NPD
• Synergy Medical Group LLC

  • Nephrology Physician
  • Hagerstown, MD
  • NPI 1881564979

  Internal Medicine

  NPD

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

• Bethesda SNF Operator LLC

  • Skilled Nursing Facility
  • Bethesda, MD
  • NPI 1750025649

  Nursing home

  Care Compare affiliation
• Frederick Health Hospital Inc

  • Community Based Hospice Care Agency
  • Frederick, MD
  • NPI 1205832268
  Care Compare affiliation
• Holy Cross Health, Inc

  • General Acute Care Hospital
  • Silver Spring, MD
  • NPI 1669417838
  Care Compare affiliation
• Holy Cross Health, Inc.

  • Clinical Medical Laboratory
  • Silver Spring, MD
  • NPI 1831574284

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1152489600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754956800000",
    "number": "1083648596",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5354 REYNOLDS ST",
            "address_2": "SUITE 424",
            "city": "SAVANNAH",
            "state": "GA",
            "postal_code": "31405",
            "telephone_number": "912-819-5999",
            "fax_number": "912-819-5980"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "13901 E JEFFERSON AVE",
            "city": "DETROIT",
            "state": "MI",
            "postal_code": "482152720",
            "telephone_number": "313-822-0900",
            "fax_number": "313-822-0950"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARTIN",
        "first_name": "GARRETT",
        "middle_name": "CLARK",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-10",
        "last_updated": "2025-08-12",
        "certification_date": "2025-08-12",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "MD",
            "license": "D67934",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MD",
            "license": "D67934",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "4670740",
            "state": "MI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Dennis J Martin
• Donovan Laron Jeremiah Martin
• Erica Danielle Martin, LPN
• Evelyn E Martin, BS, SST
• Fatima Martin
• Gerard B. Martin, M.D.
• Heather Leighann Martin, WHNP
• Jacqueline R Martin, LLMSW
• Jamaul Luther Martin
• Jasmine Lashaye Martin

• Internal Medicine Physician in Detroit, MI
• Providers in Detroit, 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 Aug 12, 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.