Geoffrey V Martin, MD

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

D95725 Issued in MD

Practice address

808 W Diamond Ave Ste 650
Gaithersburg, MD 20878-1413

Phone

(240) 364-0900

NPI assigned

May 8, 2013

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

Other identifiers 2

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in DC, MD, IL3 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

Radiation Oncology

Education

Other, 2013

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Chesapeake Urology Associates LLCGroup PAC ID 4789673393, 161 clinicians

Northwestern Medical Faculty FoundationGroup PAC ID 4587576814, 4,386 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as group

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: geoffreymartin@tsicua.allscriptsdirect.net

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.

• Chesapeake Urology Associates, LLC

  dba Chesapeake Oncology Hematology Associates

  • Hematology & Oncology Physician
  • Stevensville, MD
  • NPI 1467337337
  Medicare reassignment Care Compare group NPD
• Northwestern Medical Faculty Foundation

  dba Northwestern Medical Group

  • Multi-Specialty Clinic/Center
  • Carol Stream, IL
  • NPI 1346235314
  Medicare reassignment Care Compare group
• Chesapeake Urology Associates, LLC

  • Urology Physician
  • Silver Spring, MD
  • NPI 1700153921

  DC

  Medicare reassignment NPD
• Chesapeake Urology Associates LLC

  • Urology Physician
  • Owings Mills, MD
  • NPI 1609823004
  NPD
• Carbon County Oncology PLLC

  • Radiation Oncology Physician
  • Lehighton, PA
  • NPI 1205355286
  NPD
• Chesapeake Urology Associates, LLC

  • Urology Physician
  • Berlin, MD
  • NPI 1194147835
  NPD (past)
• Frederick Health Hospital Inc

  dba Frederick Health Hospital

  • General Acute Care Hospital
  • Frederick, MD
  • NPI 1538165527
  NPD (past)
• Chesapeake Urology Associates, LLC

  • Urology Physician
  • Seaford, DE
  • NPI 1043719123
  NPD (past)

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

{
    "created_epoch": "1367971200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779840000000",
    "number": "1245675800",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "25 CROSSROADS DR STE 306",
            "city": "OWINGS MILLS",
            "state": "MD",
            "postal_code": "211175437"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "808 W DIAMOND AVE STE 650",
            "city": "GAITHERSBURG",
            "state": "MD",
            "postal_code": "208781413",
            "telephone_number": "240-364-0900"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3407 Wilkens Ave Ste 200",
            "address_purpose": "LOCATION",
            "city": "Baltimore",
            "state": "MD",
            "postal_code": "212295221",
            "country_code": "US",
            "telephone_number": "410-644-0929",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4305 Medical Center Dr Sage Cancer Center",
            "address_purpose": "LOCATION",
            "city": "McHenry",
            "state": "IL",
            "postal_code": "60050",
            "country_code": "US",
            "telephone_number": "815-344-8000",
            "fax_number": "815-344-9601",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MARTIN",
        "first_name": "GEOFFREY",
        "middle_name": "V",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2013-05-08",
        "last_updated": "2026-05-27",
        "certification_date": "2026-05-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "IL",
            "license": "036179546",
            "primary": false
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "MD",
            "license": "D95725",
            "primary": true
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "OH",
            "license": "35.134191",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0298643",
            "state": "OH"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "7100551880",
            "state": "KY"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "geoffrey.martin@somc.medicity.net",
            "affiliation": "N",
            "address_1": "1121 Kinneys Ln",
            "city": "Portsmouth",
            "state": "OH",
            "country_code": "US",
            "postal_code": "45662",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Dominique Marshall
• Suzette Patricia Marshall
• Martha M. Murphy DDS LLC (Lakeside Dental)
• Aisha Martin
• Bradley Eugene Martin, CAPS
• Jandel Martin
• Kathy Jessica Martin
• Kimberly Michelle Martin
• Monica Martin
• Samantha Kayla Martin

• Radiation Oncology Physician in Gaithersburg, MD
• Providers in Gaithersburg, MD by specialty
• Radiation Oncology Physician in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 27, 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.