Geoffrey M Siesel, M.D.

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

35.126904 Issued in OH

Practice address

395 W 12TH Ave
Columbus, OH 43210-1267

Phone

(614) 293-8315

Fax

(614) 293-6935

NPI assigned

Jun 2, 2010

Sex

Male

Sole proprietor

Yes

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in OH

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

Diagnostic Radiology

Education

Ohio State University College of Medicine, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Osu Radiology LLCGroup PAC ID 8921031675, 180 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ohio State University State Health System Hospital, Columbus, OH, CCN 360085
• James Cancer Hospital & Solove Research Institute Hospital, Columbus, OH, CCN 360242

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.

• Osu Radiology LLC

  • Diagnostic Radiology Physician
  • Columbus, OH
  • NPI 1912956814
  Medicare reassignment Care Compare group NPD
• Riverside Radiology and Interventional Associates Inc

  • Diagnostic Radiology Physician
  • Columbus, OH
  • NPI 1093718496
  Medicare reassignment NPD

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

• Arthur G James Cancer Hospital and Research Institute

  • Special Hospital
  • Columbus, OH
  • NPI 1124127683
  Care Compare affiliation
• Ohio State University Hospitals

  • Rehabilitation Hospital Unit
  • Columbus, OH
  • NPI 1184723637
  Care Compare affiliation
• Ohio State University Hospitals

  • General Acute Care Hospital
  • Columbus, OH
  • NPI 1447359997
  Care Compare affiliation
• Ohio State University Hospitals

  • Psychiatric Hospital Unit
  • Columbus, OH
  • NPI 1790876183
  Care Compare affiliation

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

{
    "created_epoch": "1275436800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772755200000",
    "number": "1801116744",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "700 ACKERMAN RD STE 2120",
            "city": "COLUMBUS",
            "state": "OH",
            "postal_code": "432021559",
            "telephone_number": "614-293-8315",
            "fax_number": "614-293-6935"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "395 W 12TH AVE",
            "city": "COLUMBUS",
            "state": "OH",
            "postal_code": "432101267",
            "telephone_number": "614-293-8315",
            "fax_number": "614-293-6935"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIESEL",
        "first_name": "GEOFFREY",
        "middle_name": "M",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2010-06-02",
        "last_updated": "2026-03-06",
        "certification_date": "2026-03-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "OH",
            "license": "35.126904",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Sierra Health and Support Services LLC
• Sierra Health and Support Services LLC
• Sierracommunity Services
• Mildred Ann Siers, CNP
• Aleesha Siesel, PA-C
• Mikayla Sievert, MA CCC-SLP
• Rebecca Sievewright, LSW
• Rebecca Sifa
• Regina Christine Sigafoos
• Pabitra Sigdel

• Diagnostic Radiology Physician in Columbus, OH
• Providers in Columbus, OH by specialty
• Diagnostic Radiology Physician in Ohio

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