James Gerstley, M.D.

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

ME154816 Issued in FL

Practice address

21020 State Road 7 Ste 100
Boca Raton, FL 33428-1320

Phone

(561) 883-8656

NPI assigned

May 20, 2006

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 FL

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

Radiation Oncology

Education

Tulane University School of Medicine, 1982

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Genesiscare USA of Florida LLCGroup PAC ID 9830082882, 172 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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.

• Genesiscare USA of Florida LLC

  • Radiation Oncology Physician
  • Fort Myers, FL
  • NPI 1134109747
  Medicare reassignment Care Compare group NPD
• 21St Century Oncology LLC

  dba Benjamin M Tripp MD

  • Urology Physician
  • Delray Beach, FL
  • NPI 1639547938
  NPD
• Genesiscare USA of Florida LLC

  dba David Schwartzwald, MD: Urology Care Specialists

  • Urology Physician
  • Boca Raton, FL
  • NPI 1649093709
  NPD
• Catskill Radiation Oncology Consultants, PLLC

  • Radiation Oncology Physician
  • Middletown, NY
  • NPI 1922052315
  NPD (past)
• Valley Radiation Oncology Assoc PA

  • Radiation Oncology Physician
  • Ridgewood, NJ
  • NPI 1841243771
  NPD (past)

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

{
    "created_epoch": "1148083200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778025600000",
    "number": "1548214836",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "322 22ND AVE N STE 500",
            "city": "NASHVILLE",
            "state": "TN",
            "postal_code": "372031837",
            "telephone_number": "561-883-8656"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "21020 STATE ROAD 7 STE 100",
            "city": "BOCA RATON",
            "state": "FL",
            "postal_code": "334281320",
            "telephone_number": "561-883-8656"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GERSTLEY",
        "first_name": "JAMES",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-20",
        "last_updated": "2026-05-06",
        "certification_date": "2026-05-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "FL",
            "license": "ME154816",
            "primary": true
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "NJ",
            "license": "25MA06683700",
            "primary": false
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "NY",
            "license": "2093751",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Margeaux Lynn German, APRN
• Ashley Gersh
• Dolores Gershwin
• Shawn Nathan Gersman, M.D.
• Richard J Gerstein, MD
• Deborah Gerszberg, RD, LDN
• Alexis Rae Gertler, D.D.S.
• Get Cannectd
• Get Well Soon Home Health Agency, Inc.
• Daniel E Gewartowski, DDS

• Radiation Oncology Physician in Boca Raton, FL
• Providers in Boca Raton, FL by specialty
• Radiation Oncology Physician in Florida

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 6, 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.