Marshall Andrew Diven, MD, MS

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

148872 Issued in MT

Practice address

506 6TH St
Brooklyn, NY 11215-3609

Phone

(718) 780-3000

NPI assigned

Apr 4, 2020

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 MT, WY2 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

Radiation Oncology

Education

University of South Carolina School of Medicine, Greenville, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Memorial Hospital of Sheridan CountyGroup PAC ID 2163405440, 90 clinicians

Billings ClinicGroup PAC ID 6002993516, shared by 7 NPIs, 814 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Billings Clinic Hospital Hospital, Billings, MT, CCN 270004
• Sheridan Memorial Hospital Hospital, Sheridan, WY, CCN 530006
• Johnson County Healthcare Center Hospital, Buffalo, WY, CCN 531308

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine, Master of Science

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.

• Memorial Hospital of Sheridan County

  • General Acute Care Hospital
  • Sheridan, WY
  • NPI 1487707188
  Medicare reassignment Care Compare group NPD
• Billings Clinic

  • Emergency Care Clinic/Center
  • Billings, MT
  • NPI 1326104845
  Medicare reassignment NPD
• Billings Clinic

  • Family Medicine Physician
  • Cody, WY
  • NPI 1346288347
  Medicare reassignment NPD
• Billings Clinic

  • Family Medicine Physician
  • Billings, MT
  • NPI 1033164447
  NPD
• Billings Clinic

  • General Practice Physician
  • Billings, MT
  • NPI 1376598714
  NPD
• Memorial Hospital of Sheridan County

  • Community Based Hospice Care Agency
  • Sheridan, WY
  • NPI 1144359423
  NPD
• Billings Clinic

  • General Acute Care Hospital
  • Billings, MT
  • NPI 1265478291
  NPD (past)
• Frances Mahon Deaconess Hospital

  • Critical Access Hospital
  • Glasgow, MT
  • NPI 1689685323
  NPD (past)

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

• Billings Cinic

  • General Acute Care Hospital
  • Bozeman, MT
  • NPI 1215660840
  Care Compare affiliation
• Billings Clinic

  • Orthopaedic Surgery Physician
  • Billings, MT
  • NPI 1003953589

  Hospital

  Care Compare affiliation
• Billings Clinic

  • Family Medicine Physician
  • Billings, MT
  • NPI 1033164447

  Hospital

  Care Compare affiliation
• Billings Clinic

  • Endocrinology, Diabetes & Metabolism Physician
  • Billings, MT
  • NPI 1124310537

  Hospital

  Care Compare affiliation
• Billings Clinic

  • General Acute Care Hospital
  • Billings, MT
  • NPI 1265478291
  Care Compare affiliation
• Billings Clinic

  • Internal Medicine Physician
  • Bozeman, MT
  • NPI 1265648455

  Hospital

  Care Compare affiliation
• Billings Clinic

  • General Practice Physician
  • Billings, MT
  • NPI 1376598714

  Hospital

  Care Compare affiliation
• Billings Clinic

  • Internal Medicine Physician
  • Billings, MT
  • NPI 1871548289

  Hospital

  Care Compare affiliation
• Johnson County Memorial Hospital

  • Critical Access Hospital
  • Buffalo, WY
  • NPI 1003894122
  Care Compare affiliation
• Memorial Hospital of Sheridan County

  • General Acute Care Hospital
  • Sheridan, WY
  • NPI 1487707188
  Care Compare affiliation

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

{
    "created_epoch": "1585958400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760572800000",
    "number": "1649809351",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "506 6TH ST",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112153609"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "506 6TH ST",
            "city": "BROOKLYN",
            "state": "NY",
            "postal_code": "112153609",
            "telephone_number": "718-780-3000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DIVEN",
        "first_name": "MARSHALL",
        "middle_name": "ANDREW",
        "name_prefix": "Dr.",
        "credential": "MD, MS",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-04-04",
        "last_updated": "2025-10-16",
        "certification_date": "2025-10-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "WY",
            "license": "18641A",
            "primary": false
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "MT",
            "license": "148872",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Dinean Ann Ditolla, MS,CCC-SLP
• Oksana Ditwell, AGNP
• Jillian Leigh Diuguid-Gerber, MD
• Steven Marc Divack, M.D.
• Tina Marie Divello
• Diverse Minds Corp
• Diverse Minds Corp
• Diverse NP in Family Adult Health and Gerontology, PLLC
• Diversified Diagnostic Services Medical Care PC
• Diversity Care

• Radiation Oncology Physician in Brooklyn, NY
• Providers in Brooklyn, NY by specialty
• Radiation Oncology Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 16, 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.