Jeffrey Mark Downen, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

ME173562 Issued in FL

Practice address

655 W 8TH St
Jacksonville, FL 32209-6511

Phone

(904) 244-6340

NPI assigned

Mar 25, 2021

Last updated

Jul 17, 2025By the provider in NPPES

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

Medicare fee-for-service enrollment

Enrolled in GA, FL2 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

Emergency Medicine

Education

Other, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University of Florida Jacksonville Physicians, Inc.Group PAC ID 9133025869, shared by 5 NPIs, 908 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Shands Jacksonville Hospital, Jacksonville, FL, CCN 100001

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jdownen528645@direct.shands.ufl.edu
• Direct secure messaging: jdownen899872@direct.emory.org

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

• University of Florida Jacksonville Physicians Inc

  • Diagnostic Radiology Physician
  • Jacksonville, FL
  • NPI 1326208695
  Medicare reassignment NPD
• University of Florida Jacksonville Physicians, Inc.

  • Internal Medicine Physician
  • Jacksonville, FL
  • NPI 1144276452
  Medicare reassignment NPD
• Emory Medical Care Foundation Inc

  • Internal Medicine Physician
  • Atlanta, GA
  • NPI 1063452381

  Emergency Medicine

  Medicare reassignment NPD
• Emory Specialty Associates, LLC

  • Anesthesiology Physician
  • Lagrange, GA
  • NPI 1407864168

  Emergency Medicine

  Medicare reassignment NPD
• The Emory Clinic Inc

  • Internal Medicine Physician
  • Atlanta, GA
  • NPI 1396798229
  Medicare reassignment NPD
• University of Florida Jacksonville Physicians Inc

  • Emergency Medicine Physician
  • Jacksonville, FL
  • NPI 1265693279
  NPD
• University of Florida Jacksonville Physicians Inc

  • Surgery Physician
  • Jacksonville, FL
  • NPI 1588824858
  NPD
• University of Florida Jacksonville Physicians, Inc.

  dba UF Health Imaging Center-Baymeadows

  • Physiological Laboratory
  • Jacksonville, FL
  • NPI 1831800952
  NPD
• Emory Medical Care Foundation

  • Emergency Medicine Physician
  • Atlanta, GA
  • NPI 1982860490
  NPD
• Emory Medical Care Foundation Inc

  • Diagnostic Radiology Physician
  • Atlanta, GA
  • NPI 1225294739
  NPD
• Emory Health Care

  • Neurology Physician
  • Atlanta, GA
  • NPI 1376642751
  NPD (past)

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

• Shands Jacksonville Medical Center Inc

  • Urgent Care Clinic/Center
  • Jacksonville, FL
  • NPI 1144962408

  Hospital

  Care Compare affiliation
• Shands Jacksonville Medical Center Inc

  dba Shands Jacksonville

  • General Acute Care Hospital
  • Jacksonville, FL
  • NPI 1821186313
  Care Compare affiliation

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

{
    "created_epoch": "1616630400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752710400000",
    "number": "1871170951",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "655 W 8TH ST",
            "city": "JACKSONVILLE",
            "state": "FL",
            "postal_code": "322096511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "655 W 8TH ST",
            "city": "JACKSONVILLE",
            "state": "FL",
            "postal_code": "322096511",
            "telephone_number": "904-244-6340"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1364 Clifton Rd NE",
            "address_purpose": "LOCATION",
            "city": "Atlanta",
            "state": "GA",
            "postal_code": "303221059",
            "country_code": "US",
            "telephone_number": "404-251-8865",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DOWNEN",
        "first_name": "JEFFREY",
        "middle_name": "MARK",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-03-25",
        "last_updated": "2025-07-17",
        "certification_date": "2025-07-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "FL",
            "license": "ME173562",
            "primary": true
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "GA",
            "license": "100028",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kristin Michelle Dowling, OT
• Paula Joanne Dowling, CRNA
• Down South Transport 904 LLC (Down South transport)
• Marquise Jordan Downceroux, BS
• Teresea Lynn Downceroux
• Herman Jackson Downey, MD
• Thomas Jackson Downey, P.A.C.
• Allison Downing, PHARMD
• Jada Gordon Downing, P.T.
• Downs and Fetner, PLLC

• Emergency Medicine Physician in Jacksonville, FL
• Providers in Jacksonville, FL by specialty
• Emergency Medicine Physician in Florida

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 17, 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.