Shirin Sioshansi, M.D.

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

MD20329 Issued in RI

Practice address

593 Eddy St
Providence, RI 02903-4923

Phone

(401) 444-8311

NPI assigned

Sep 13, 2007

Last updated

Jun 22, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in MA, RI2 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

Warren Alpert Medical School of Brown University, 2006

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Radiosurgery Center of Rhode Island LLCGroup PAC ID 0345393559, 9 clinicians

Lifespan Physician Group IncGroup PAC ID 2567455082, 1,151 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Rhode Island Hospital Hospital, Providence, RI, CCN 410007
• The Miriam Hospital Hospital, Providence, RI, CCN 410012
• Dana-Farber Cancer Institute Hospital, Boston, MA, CCN 220162
• Umass Memorial Medical Center/University Campus Hospital, Worcester, MA, CCN 220163

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ssioshansi229454@brownhealth.medalliesdirect.net
• Direct secure messaging: ssioshansi23758@umassmemorial.direct-ci.com

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.

• Lifespan Physician Group, Inc.

  dba Brown Health Medical Group

  • General Practice Physician
  • Providence, RI
  • NPI 1407116643
  Medicare reassignment Care Compare group NPD
• Radiosurgery Center of Rhode Island LLC

  • Radiation Oncology Physician
  • Providence, RI
  • NPI 1578726261
  Medicare reassignment Care Compare group NPD
• Rhode Island Hospital

  • Hematology & Oncology Physician
  • Providence, RI
  • NPI 1396849782
  Medicare reassignment NPD
• Steward Medical Group, Inc

  • Specialist
  • Watertown, MA
  • NPI 1629398219
  Medicare reassignment NPD
• Lifespan Physician Group of Massachusetts Inc

  dba Brown Health Medical Group

  • Family Medicine Physician
  • Taunton, MA
  • NPI 1235957713
  Medicare reassignment
• Lifespan Corporation

  • Children's Rehabilitation Hospital
  • Providence, RI
  • NPI 1790221232
  NPD
• Lifespan Physician Group, Inc.

  dba Brown Health Medical Group

  • Emergency Medicine Physician
  • Providence, RI
  • NPI 1568325678
  NPD
• Rhode Island Hospital

  • General Acute Care Hospital
  • Providence, RI
  • NPI 1972768174
  NPD
• Steward Medical Group, Inc

  • Specialist
  • Brighton, MA
  • NPI 1356654495
  NPD
• Lifespan Physician Group, Inc.

  dba Brown Health Medical Group

  • Psychiatry Physician
  • Providence, RI
  • NPI 1548506793
  NPD (past)
• Rhode Island Hospital

  • General Acute Care Hospital
  • Providence, RI
  • NPI 1588659528
  NPD (past)

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

• Rhode Island Hospital

  dba LifePact

  • Ambulance
  • Providence, RI
  • NPI 1053552299

  Hospital

  Care Compare affiliation
• Rhode Island Hospital

  • Clinic/Center
  • Providence, RI
  • NPI 1154663383

  Hospital

  Care Compare affiliation
• Rhode Island Hospital

  • General Acute Care Hospital
  • Providence, RI
  • NPI 1588659528
  Care Compare affiliation
• Rhode Island Hospital

  • General Acute Care Hospital
  • Providence, RI
  • NPI 1972768174
  Care Compare affiliation
• The Miriam Hospital

  • General Acute Care Hospital
  • Providence, RI
  • NPI 1487649430
  Care Compare affiliation
• Dana-Farber Cancer Institute, Inc.

  dba Dana-Farber Cancer Institute

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1851333686
  Care Compare affiliation
• Umass Memorial Medical Center, Inc.

  • General Acute Care Hospital
  • Worcester, MA
  • NPI 1831151455
  Care Compare affiliation

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

{
    "created_epoch": "1189641600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782086400000",
    "number": "1518152438",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "117 ELLENFIELD ST",
            "city": "PROVIDENCE",
            "state": "RI",
            "postal_code": "029054541",
            "telephone_number": "401-444-6779",
            "fax_number": "401-444-6912"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "593 EDDY ST",
            "city": "PROVIDENCE",
            "state": "RI",
            "postal_code": "029034923",
            "telephone_number": "401-444-8311"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "795 Middle St",
            "address_purpose": "LOCATION",
            "city": "Fall River",
            "state": "MA",
            "postal_code": "027211733",
            "country_code": "US",
            "telephone_number": "508-996-3991",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SIOSHANSI",
        "first_name": "SHIRIN",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-09-13",
        "last_updated": "2026-06-22",
        "certification_date": "2026-06-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "MA",
            "license": "247683",
            "primary": false
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "RI",
            "license": "MD20329",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110089056A",
            "state": "MA"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "ssioshansi23758@UmassMemorial.direct-ci.com",
            "affiliation": "N",
            "address_1": "55 Lake Ave N",
            "address_2": "Department of Radiation Oncology",
            "city": "Worcester",
            "state": "MA",
            "country_code": "US",
            "postal_code": "016550002",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0978.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "55 Lake Ave N",
            "address_2": "Department of Radiation Oncology",
            "city": "Worcester",
            "state": "MA",
            "country_code": "US",
            "postal_code": "016550002",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Sumi Singh, MD
• Krish Singhal, M.D.
• Sachi Singhal, MD
• Hillary Trumbower Sinica, LICSW
• Sinoptics, Inc
• Dana Siperstein, M.D.
• Terry Theodore Siravo, RRT
• Varfeeta Sirleaf
• Michael Sisitsky, MD
• Nikolaos Sismanopoulos, M.D

• Radiation Oncology Physician in Providence, RI
• Providers in Providence, RI by specialty
• Radiation Oncology Physician in Rhode Island

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 22, 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.