Weizhen Tan, MD

Primary specialty

Pediatric Nephrology PhysicianTaxonomy code 2080P0210X

License

258478 Issued in MA

Practice address

55 Fruit St
Massachusetts General Hospital
Boston, MA 02114-2621

Phone

(617) 726-2908

Fax

(617) 643-9141

NPI assigned

May 3, 2011

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Electronic endpoints 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

Pediatric Medicine

Education

University of Massachusetts Medical School, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

The General Hospital CorporationGroup PAC ID 6507803806, 1,275 clinicians

Massachusetts General Physicians Organization IncGroup PAC ID 2466365820, 3,494 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: tan.weizhen.mgh@direct.partners.masshiway.net
• Direct secure messaging: wtan29924@tuftsmedicine.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 and National Provider Directory roles.

• The General Hospital Corporation

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1023049236
  Medicare reassignment Care Compare group NPD
• Massachusetts General Physicians Organization Inc

  • Dermatology Physician
  • Boston, MA
  • NPI 1801874573

  NH

  Medicare reassignment Care Compare group
• Children'S Hospital Pediatric Associates, Inc

  • Pediatrics Physician
  • Boston, MA
  • NPI 1457306664

  Pediatric Nephrology

  Medicare reassignment NPD
• Mass General Brigham Medical Group Suburban Massachusetts Inc

  • Family Medicine Physician
  • Newton, MA
  • NPI 1538191218
  Medicare reassignment NPD
• Umass Memorial Medical Group Inc

  • Internal Medicine Physician
  • Worcester, MA
  • NPI 1760445373
  Medicare reassignment NPD
• General Hospital Corp

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1508390014
  NPD
• Umass Memorial Medical Group, Inc.

  • Urgent Care Clinic/Center
  • Oxford, MA
  • NPI 1982381018
  NPD

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

{
    "created_epoch": "1304380800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754438400000",
    "number": "1952693418",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "address_2": "YAWKEY 6C",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142696",
            "telephone_number": "617-726-2908",
            "fax_number": "617-643-9141"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "address_2": "MASSACHUSETTS GENERAL HOSPITAL",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142621",
            "telephone_number": "617-726-2908",
            "fax_number": "617-643-9141"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "55 Lake Ave N",
            "address_purpose": "LOCATION",
            "city": "Worcester",
            "state": "MA",
            "postal_code": "016550002",
            "country_code": "US",
            "telephone_number": "774-442-2131",
            "fax_number": "774-441-8004",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TAN",
        "first_name": "WEIZHEN",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2011-05-03",
        "last_updated": "2025-08-06",
        "certification_date": "2025-08-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0210X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Nephrology",
            "state": "MA",
            "license": "258478",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0978.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "55 Lake Ave N",
            "city": "Worcester",
            "state": "MA",
            "country_code": "US",
            "postal_code": "016550002",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Joy Tan
• Oon Tian Tan, M.D
• Rose Tan, PHARMD
• Summer Xiamin Tan, DMD
• Timothy C Tan, MBBS, PHD
• Wen-Hann Tan, M.D.
• Xiao Tan, MD, PHD
• Yun June Angela Tan
• Kenneth Kenji Tanabe, MD
• Mihoko Tanabe

• Pediatric Nephrology Physician in Boston, MA
• Providers in Boston, MA by specialty
• Pediatric Nephrology Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 6, 2025; 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.