Michael Y Choi, MD

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

217235 Issued in MA

Practice address

21 Eastern Ave
Worcester, MA 01605-3094

Phone

(508) 334-8419

NPI assigned

Dec 8, 2005

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 MA, NH2 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

GastroenterologyAlso: Internal Medicine

Education

Other, 1998

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Umass Memorial Medical Group Inc 2,494 clinicians

Core Physicians LLC 290 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Exeter Hospital Inc Hospital, Exeter, NH, CCN 300023
• Mainehealth Mid Coast Hospital Hospital, Brunswick, ME, CCN 200021

Merit-based Incentive Payment System (MIPS)

Final score

86.36 of 100Reported as apm

Quality

85.92

Promoting interoperability

78

Improvement activities

40

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mchoi446753@direct.mmc.mainehealth.org
• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/
• Direct secure messaging: mchoi507201@direct.bilh.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.

• Core Physicians, LLC

  • Family Medicine Physician
  • Exeter, NH
  • NPI 1336330588

  Internal Medicine, NH

  Medicare reassignment Care Compare group NPD
• Umass Memorial Medical Group Inc

  • Internal Medicine Physician
  • Worcester, MA
  • NPI 1760445373

  MA

  Medicare reassignment Care Compare group
• Core Physicians, LLC

  • Durable Medical Equipment & Medical Supplies
  • Plaistow, NH
  • NPI 1528308541
  Care Compare group
• Core Physicians LLC

  • Durable Medical Equipment & Medical Supplies
  • Raymond, NH
  • NPI 1083085724
  NPD

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

• Exeter Hospital Inc

  • General Acute Care Hospital
  • Exeter, NH
  • NPI 1437158433

  Hospital

  Care Compare affiliation
• Mainehealth

  • General Acute Care Hospital
  • Brunswick, ME
  • NPI 1932164795

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1134000000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782259200000",
    "number": "1922083344",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 415348",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "022415348",
            "telephone_number": "800-225-8885",
            "fax_number": "508-334-1977"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "21 EASTERN AVE",
            "city": "WORCESTER",
            "state": "MA",
            "postal_code": "016053094",
            "telephone_number": "508-334-8419"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "157 Union St",
            "address_purpose": "LOCATION",
            "city": "Marlborough",
            "state": "MA",
            "postal_code": "017521228",
            "country_code": "US",
            "telephone_number": "508-481-5000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "28 Newton St",
            "address_purpose": "LOCATION",
            "city": "Southborough",
            "state": "MA",
            "postal_code": "017721215",
            "country_code": "US",
            "telephone_number": "508-334-3068",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "121 Medical Center Dr Ste 3400",
            "address_purpose": "LOCATION",
            "city": "Brunswick",
            "state": "ME",
            "postal_code": "040112675",
            "country_code": "US",
            "telephone_number": "207-406-7300",
            "fax_number": "207-835-4736",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHOI",
        "first_name": "MICHAEL",
        "middle_name": "Y",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-12-08",
        "last_updated": "2026-06-24",
        "certification_date": "2026-06-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "ME",
            "license": "MD18573",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "MA",
            "license": "217235",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110034766A",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Yoonyie Cho, M.D.
• Markus Chobotaru
• Cindy Truong Choe
• David J Choi, M.D.
• Gyu Cheol Choi, M.D
• Moonyoung Choi, MD
• Choices Inc
• Nidhi Chojar, M.D.
• Sylvia Barbara Chojnowska, MA
• Kaya Chokshi Fox

• All providers in Worcester, MA
• Gastroenterology Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 24, 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.