Catherine S. Yu, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

216442 Issued in MA

Practice address

332 Hanover St
Boston, MA 02113-1901

Phone

(617) 643-8000

NPI assigned

May 2, 2006

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

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

University of Massachusetts Medical School, 2005

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Lowell Community Health Center, Inc.Group PAC ID 6204807944, 85 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Lowell General Hospital Hospital, Lowell, MA, CCN 220063
• Massachusetts General Hospital Hospital, Boston, MA, CCN 220071

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: cyu21386@direct.ctc.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.

• Lowell Community Health Center, Inc.

  • Federally Qualified Health Center (FQHC)
  • Lowell, MA
  • NPI 1952307530
  Medicare reassignment Care Compare group NPD
• The General Hospital Corporation

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1023049236
  Medicare reassignment
• Lowell Community Health Center, Inc.

  • Community/Retail Pharmacy
  • Lowell, MA
  • NPI 1295587368
  NPD

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

• The General Hospital Corporation

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1023049236
  Care Compare affiliation
• The Lowell General Hospital

  • General Acute Care Hospital
  • Lowell, MA
  • NPI 1407804669
  Care Compare affiliation

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

{
    "created_epoch": "1146528000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776211200000",
    "number": "1548228455",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "161 JACKSON ST",
            "city": "LOWELL",
            "state": "MA",
            "postal_code": "018522103",
            "telephone_number": "978-937-9700",
            "fax_number": "978-275-9890"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "332 HANOVER ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021131901",
            "telephone_number": "617-643-8000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "YU",
        "first_name": "CATHERINE",
        "middle_name": "S.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-05-02",
        "last_updated": "2026-04-15",
        "certification_date": "2026-04-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "MA",
            "license": "216442",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "216442",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2109972",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Aaron Yu
• Alexander T. Yu, MD
• Anthony Yu
• Brian Minghan Yu
• Catherine Yu, CRNA
• Channing Yu, M.D., PH.D.
• Chunghan Yu
• Cindy Yu, M.D.
• Cliff B Yu, CRNA
• Donghui Yu, PHD PT

• Internal Medicine Physician in Boston, MA
• Providers in Boston, 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 Apr 15, 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.