Iryna G Chastain, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

238742 Issued in MA

Practice address

123 Summer St
Worcester, MA 01608-1216

Phone

(508) 363-5000

NPI assigned

May 15, 2008

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 1

Other names 1

• Mrs. Iryna Gennagyevna Chastain Other name

Medicare fee-for-service enrollment

Enrolled in MA

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 Medicine

Education

Other, 1997

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Reliant Medical Group IncGroup PAC ID 5597755322, 638 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• St Vincent Hospital Hospital, Worcester, MA, CCN 220176

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: iryna.chastain.npi1285801407.reliant@direct.optumcare.masshiway.net

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.

• Reliant Medical Group, Inc

  • Family Medicine Physician
  • Worcester, MA
  • NPI 1720017528

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Physicians of Cape Cod Hospital

  • Neuroradiology Physician
  • Hyannis, MA
  • NPI 1679832364

  Internal Medicine

  Medicare reassignment NPD
• Steward Medical Group, Inc

  • Specialist
  • Watertown, MA
  • NPI 1629398219
  Medicare reassignment NPD
• Vibra Physicians LLC

  • Hospitalist Physician
  • Johnstown, CO
  • NPI 1659705424

  MA

  Medicare reassignment NPD
• Steward Medical Group, Inc

  • Specialist
  • Brighton, MA
  • NPI 1356654495
  NPD
• Reliant Medical Group, Inc

  • Physical Therapist
  • Worcester, MA
  • NPI 1295827962
  NPD (past)
• VHS Acquisition Subsidiary Number 7 Inc

  • General Acute Care Hospital
  • Worcester, MA
  • NPI 1538131214
  NPD (past)

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

• VHS Acquisition Subsidiary Number 7 Inc

  • General Acute Care Hospital
  • Worcester, MA
  • NPI 1538131214
  Care Compare affiliation

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

{
    "created_epoch": "1210809600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1583712000000",
    "number": "1285801407",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5 NEPONSET STREET",
            "address_2": "WOT 2ND FL, STE C203",
            "city": "WORCESTER",
            "state": "MA",
            "postal_code": "016062714",
            "telephone_number": "508-852-0600",
            "fax_number": "508-368-3146"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "123 SUMMER ST",
            "city": "WORCESTER",
            "state": "MA",
            "postal_code": "016081216",
            "telephone_number": "508-363-5000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHASTAIN",
        "first_name": "IRYNA",
        "middle_name": "G",
        "name_prefix": "Mrs.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2008-05-15",
        "last_updated": "2020-03-09",
        "certification_date": "2020-03-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "238742",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110083584A",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "IRYNA",
            "last_name": "CHASTAIN",
            "middle_name": "GENNAGYEVNA",
            "prefix": "MRS.",
            "credential": "M.D.",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Joseph Charpentier, D.O.
• Malenica Charria-Cruz
• Ashley Chartier
• Gerald J Chase, M.D.
• Fredrick H. Chassman, DC
• Jonathon Chastek, DO
• Jennifer Robin Chatelle, LMHC
• Bryan Chatterton
• Sukhjeevan S Chattha, DDS
• Charvy Chau

• Internal Medicine Physician in Worcester, MA
• Providers in Worcester, MA by specialty
• Internal Medicine Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 9, 2020; 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.