Michael T Poshkus, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

MD11272 Issued in RI

Practice address

186 Providence St
West Warwick, RI 02893-2508

Phone

(401) 615-2800

Fax

(401) 615-2805

NPI assigned

Jun 7, 2006

Sex

Male

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

Medicare fee-for-service enrollment

Enrolled in RI

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

Internal MedicineAlso: Infectious Disease

Education

Columbia University College of Physicians and Surgeons, 1998

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Thundermist Health CenterGroup PAC ID 1557270477, 161 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Kent County Memorial Hospital Hospital, Warwick, RI, CCN 410009
• The Miriam Hospital Hospital, Providence, RI, CCN 410012

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: michael.poshkus@thundermist.eclinicaldirectplus.com
• FHIR API: https://fhir4.healow.com/fhir/r4/DCBEAA

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.

• Thundermist Health Center

  • Federally Qualified Health Center (FQHC)
  • Wakefield, RI
  • NPI 1700041001
  Medicare reassignment Care Compare group NPD
• Thundermist Health Center

  • Federally Qualified Health Center (FQHC)
  • Narragansett, RI
  • NPI 1265190292
  NPD
• Thundermist Health Center

  • Federally Qualified Health Center (FQHC)
  • Woonsocket, RI
  • NPI 1588691620
  NPD
• Brown Medicine

  • Internal Medicine Physician
  • Riverside, RI
  • NPI 1689626764
  NPD (past)

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

• Kent County Memorial Hospital

  • Rehabilitation Hospital Unit
  • Warwick, RI
  • NPI 1023017944
  Care Compare affiliation
• Kent County Memorial Hospital

  • General Acute Care Hospital
  • Warwick, RI
  • NPI 1386643294
  Care Compare affiliation
• The Miriam Hospital

  • General Acute Care Hospital
  • Providence, RI
  • NPI 1487649430
  Care Compare affiliation

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

{
    "created_epoch": "1149638400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786406400000",
    "number": "1952341075",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "186 PROVIDENCE ST",
            "city": "WEST WARWICK",
            "state": "RI",
            "postal_code": "028932508",
            "telephone_number": "401-615-2800",
            "fax_number": "401-615-2805"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "186 PROVIDENCE ST",
            "city": "WEST WARWICK",
            "state": "RI",
            "postal_code": "028932508",
            "telephone_number": "401-615-2800",
            "fax_number": "401-615-2805"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1 River St",
            "address_purpose": "LOCATION",
            "city": "Wakefield",
            "state": "RI",
            "postal_code": "028793214",
            "country_code": "US",
            "telephone_number": "401-767-4100",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "450 Clinton St",
            "address_purpose": "LOCATION",
            "city": "Woonsocket",
            "state": "RI",
            "postal_code": "028953207",
            "country_code": "US",
            "telephone_number": "401-767-4100",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "POSHKUS",
        "first_name": "MICHAEL",
        "middle_name": "T",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-07",
        "last_updated": "2026-08-11",
        "certification_date": "2026-08-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "RI",
            "license": "MD11272",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "RI",
            "license": "MD11272",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "9003199",
            "state": "RI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

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• Victoria Ann Porrino, MA
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• Marylin Michelle Powers, DO
• Preferred Therapy Services, LLC
• Primary & Psychiatric Integrated Care

• Internal Medicine Physician in West Warwick, RI
• Providers in West Warwick, RI by specialty
• Internal Medicine Physician in Rhode Island

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 11, 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.