Stella Xiyun Chen, MD, PHD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

3018380 Issued in MA

Practice address

330 Mount Auburn St
Cambridge, MA 02138-5502

Phone

(617) 492-3500

NPI assigned

Mar 27, 2025

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

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine, Doctor of Philosophy

Interoperability endpoints

• Direct secure messaging: schen567553@direct.bilh.masshiway.net

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

{
    "created_epoch": "1743033600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754092800000",
    "number": "1043012131",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "449 CANAL ST APT 216",
            "city": "SOMERVILLE",
            "state": "MA",
            "postal_code": "021454348",
            "telephone_number": "510-449-8877"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "330 MOUNT AUBURN ST",
            "city": "CAMBRIDGE",
            "state": "MA",
            "postal_code": "021385502",
            "telephone_number": "617-492-3500"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "800 Washington St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021111552",
            "country_code": "US",
            "telephone_number": "617-636-5000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHEN",
        "first_name": "STELLA",
        "middle_name": "XIYUN",
        "credential": "MD, PHD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-03-27",
        "last_updated": "2025-08-02",
        "certification_date": "2025-08-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "3018380",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Liyang Leon Chen, M.D.
• Paul C Chen, MD, MBA
• Peggy Yu Chen, DMD
• Ryan Chen
• Shou En Chen
• Vivian Chen
• Elisa Kuo-Min Cheng, M.D.
• Eric Cheng
• Susan Cheng, O.D.
• Juana L Cherif Machichi

• Internal Medicine Physician in Cambridge, MA
• Providers in Cambridge, 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 Aug 2, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.