Si Chen, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

A138141 Issued in CA

Practice address

1700 Mount Vernon Ave
Bakersfield, CA 93306-4018

Phone

(661) 326-2000

NPI assigned

Mar 20, 2013

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

Internal Medicine

Education

Other, 2012

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Galen Inpatient Physicians PCGroup PAC ID 3678464633, 1,045 clinicians

Advantage Hospitalists IncGroup PAC ID 7810291531, 9 clinicians

Cottage Medical FoundationGroup PAC ID 0547600512, 83 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Santa Barbara Cottage Hospital Hospital, Santa Barbara, CA, CCN 050396
• St Johns Regional Medical Center Hospital, Oxnard, CA, CCN 050082
• Goleta Valley Cottage Hospital Hospital, Santa Barbara, CA, CCN 050357
• Lompoc Valley Medical Center Hospital, Lompoc, CA, CCN 050110
• Santa Ynez Valley Cottage Hospital Hospital, Solvang, CA, CCN 051331

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations (25 of 30)

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.

• Cottage Medical Foundation

  • Clinic/Center
  • Santa Barbara, CA
  • NPI 1770352130
  Medicare reassignment Care Compare group NPD
• Galen Inpatient Physicians, PC

  • Hospitalist Physician
  • Manteca, CA
  • NPI 1689320459
  Medicare reassignment Care Compare group NPD
• Advantage Hospitalists Inc.

  • Internal Medicine Physician
  • Agoura Hills, CA
  • NPI 1801269881
  Medicare reassignment Care Compare group
• American Current Care of California, a Medical Corporation

  • Clinic/Center
  • Los Angeles, CA
  • NPI 1750573622
  Medicare reassignment NPD
• Cedar Springs Hospitalist Medical Group, Inc.

  • Hospitalist Physician
  • Glendale, CA
  • NPI 1245799279
  Medicare reassignment NPD
• Hospitalist Group of Montebello Inc

  • Hospitalist Physician
  • Corona, CA
  • NPI 1578959318
  Medicare reassignment NPD
• Southern California Hospitalist Network Medical Group Inc

  • Internal Medicine Physician
  • Orange, CA
  • NPI 1790880458
  Medicare reassignment NPD
• Sycamore Hill Hospitalist Medical Group Inc

  • Hospitalist Physician
  • Los Angeles, CA
  • NPI 1588139836
  Medicare reassignment NPD
• American Current Care of California, a Medical Corporation

  • Urgent Care Clinic/Center
  • Ontario, CA
  • NPI 1811464084
  NPD
• American Current Care of California, a Medical Corporation

  • Urgent Care Clinic/Center
  • La Palma, CA
  • NPI 1932534609
  NPD
• Galen Inpatient Physicians PC

  • Hospitalist Physician
  • Montebello, CA
  • NPI 1114703006
  NPD
• Galen Inpatient Physicians PC

  • Hospitalist Physician
  • Los Angeles, CA
  • NPI 1205787686
  NPD

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

• Dignity Health

  • General Acute Care Hospital
  • Oxnard, CA
  • NPI 1073665360
  Care Compare affiliation
• Goleta Valley Cottage Hospital

  • General Acute Care Hospital
  • Santa Barbara, CA
  • NPI 1225038136
  Care Compare affiliation
• Lompoc Valley Medical Center

  • General Acute Care Hospital
  • Lompoc, CA
  • NPI 1194711952
  Care Compare affiliation
• Santa Barbara Cottage Hospital

  • General Acute Care Hospital
  • Santa Barbara, CA
  • NPI 1477554152
  Care Compare affiliation
• Santa Ynez Valley Cottage Hospital, Inc

  • General Acute Care Hospital
  • Solvang, CA
  • NPI 1952301863
  Care Compare affiliation

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

{
    "created_epoch": "1363737600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755043200000",
    "number": "1467794180",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "817 S MAIN ST STE D",
            "city": "CORONA",
            "state": "CA",
            "postal_code": "928823407",
            "telephone_number": "951-339-8459",
            "fax_number": "844-352-6664"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1700 MOUNT VERNON AVE",
            "city": "BAKERSFIELD",
            "state": "CA",
            "postal_code": "933064018",
            "telephone_number": "661-326-2000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "400 W Pueblo St",
            "address_purpose": "LOCATION",
            "city": "Santa Barbara",
            "state": "CA",
            "postal_code": "931054353",
            "country_code": "US",
            "telephone_number": "805-682-7111",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHEN",
        "first_name": "SI",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2013-03-20",
        "last_updated": "2025-08-13",
        "certification_date": "2025-08-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CA",
            "license": "A138141",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Liza Chen, PA-C
• Mandy Xinyan Chen
• Nicole Chen, D.D.S
• Phillip Yun Chen, M.D.
• Shan Shan Chen, MD
• Steven Yu-Hsuen Chen, M.D.
• Tzu-Han Chen
• Yijia Chen, PHARM.D.
• Yufan Brandon Chen, M.D.
• Jeffrey Cheney

• Internal Medicine Physician in Bakersfield, CA
• Providers in Bakersfield, CA by specialty
• Internal Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 13, 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.