Sean Xiang Chen, MD

Primary specialty

Adult Medicine PhysicianTaxonomy code 207QA0505X

License

A184478 Issued in CA

Practice address

18546 Roscoe Blvd Ste 300
Northridge, CA 91324-5458

Phone

(818) 886-4028

Fax

(818) 886-6072

NPI assigned

Mar 30, 2020

Sex

Male

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 CA

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

Family Practice

Education

Other, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Healthcare Partners Affiliates Medical GroupGroup PAC ID 7315842002, 775 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: schen207525@westdirect.optum.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.

• Healthcare Partners Affiliates Medical Group

  • Internal Medicine Physician
  • Los Angeles, CA
  • NPI 1659312593

  Adult Medicine

  Medicare reassignment Care Compare group NPD
• Beaver Medical Group P C

  • Family Medicine Physician
  • Redlands, CA
  • NPI 1649503319
  Medicare reassignment NPD
• Centers for Family Medicine GP

  • Family Medicine Physician
  • Los Alamitos, CA
  • NPI 1467598243
  Medicare reassignment NPD
• Pinnacle Medical Group, Inc

  • Family Medicine Physician
  • Fontana, CA
  • NPI 1376876912
  Medicare reassignment NPD
• Saddleback Medical Group Inc

  • Gastroenterology Physician
  • Laguna Hills, CA
  • NPI 1386605822
  Medicare reassignment NPD
• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Baldwin Park, CA
  • NPI 1770515280
  Medicare reassignment NPD
• Beaver Medical Group P C

  • Physical Therapist
  • Redlands, CA
  • NPI 1427090281
  NPD
• Cassidy Medical Group Inc.

  • Multi-Specialty Clinic/Center
  • Vista, CA
  • NPI 1215003470
  NPD
• Healthcare Partners Affiliates Medical Group

  • Durable Medical Equipment & Medical Supplies
  • Murrieta, CA
  • NPI 1760057269
  NPD
• Pinnacle Medical Group, Inc

  • Family Medicine Physician
  • Fontana, CA
  • NPI 1043255763
  NPD
• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Oxnard, CA
  • NPI 1275756652
  NPD
• Southern California Permanente Medical Group

  • Health Maintenance Organization
  • Santa Clarita, CA
  • NPI 1316409410
  NPD

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

{
    "created_epoch": "1585526400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765065600000",
    "number": "1336777838",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 35380",
            "city": "LAS VEGAS",
            "state": "NV",
            "postal_code": "891335380",
            "telephone_number": "702-579-3203"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "18546 ROSCOE BLVD STE 300",
            "city": "NORTHRIDGE",
            "state": "CA",
            "postal_code": "913245458",
            "telephone_number": "818-886-4028",
            "fax_number": "818-886-6072"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHEN",
        "first_name": "SEAN",
        "middle_name": "XIANG",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-03-30",
        "last_updated": "2025-12-07",
        "certification_date": "2025-12-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207QA0505X",
            "taxonomy_group": "",
            "desc": "Family Medicine, Adult Medicine",
            "state": "CA",
            "license": "A184478",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ursula Chavez
• Victoria Chavez, MA
• Victor Chavira
• Mun Yoen Chea, D.D.S.
• David Chen, DO
• Siming Chen, FNP-C
• Amy Chesnut
• Christian Michael Chiavetta, D.O.
• Charles W. Chidsey III, M.D.
• Child and Family Guidance Center

• Adult Medicine Physician in Northridge, CA
• Providers in Northridge, CA by specialty
• Adult Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 7, 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.