Jasen Tjahjadi

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

A176433 Issued in CA

Practice address

171 Sand Creek Rd Ste a
Brentwood, CA 94513-2057

Phone

(717) 544-4940

NPI assigned

Jun 10, 2019

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

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

Eastern Virginia Medical School, 2019

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Hospital & facility affiliations

• JMJ Home Health Services Home health agency, Brentwood, CA, CCN 059309
• Bay Nation Home Health Services Inc Home health agency, Newark, CA, CCN 553127
• Contra Costa Regional Medical Center Hospital, Martinez, CA, CCN 050276

Medicare enrollment (NPD)

Enrolled

Practice roles

Locations

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.

• Contra Costa County

  • Adult Mental Health Clinic/Center
  • San Pablo, CA
  • NPI 1376620336
  Medicare reassignment
• Contra Costa County

  • Adult Mental Health Clinic/Center
  • Concord, CA
  • NPI 1023188489
  NPD
• Contra Costa County

  • General Acute Care Hospital
  • Martinez, CA
  • NPI 1386719086
  NPD

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

• Bay Nation Home Health Services Inc

  • Home Health Agency
  • Newark, CA
  • NPI 1386093714
  Care Compare affiliation
• Contra Costa County

  • General Acute Care Hospital
  • Martinez, CA
  • NPI 1386719086
  Care Compare affiliation
• JMJ Healthcare, Inc

  • Home Health Agency
  • Brentwood, CA
  • NPI 1184777344
  Care Compare affiliation

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

{
    "created_epoch": "1560124800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781740800000",
    "number": "1649839077",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "171 SAND CREEK RD STE A",
            "city": "BRENTWOOD",
            "state": "CA",
            "postal_code": "945132057"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "171 SAND CREEK RD STE A",
            "city": "BRENTWOOD",
            "state": "CA",
            "postal_code": "945132057",
            "telephone_number": "717-544-4940"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TJAHJADI",
        "first_name": "JASEN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-06-10",
        "last_updated": "2026-06-18",
        "certification_date": "2026-06-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "PA",
            "license": "MT217899",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CA",
            "license": "A176433",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Amanda Rose Thorndike
• Carol Threde
• Tracy Thurman, MS, NCSP
• Amor G Tiburcio, DMD
• Alice D Tien, PHARM. D
• Patricia Han To, MOT, OTR/L
• Sarah Tolvtvar, MED, ATC
• Val Herbert Tompkins, D.C.
• Shuyi Tong
• Leslie Viviana Torrentes Rodriguez

• Family Medicine Physician in Brentwood, CA
• Providers in Brentwood, CA by specialty
• Family Medicine Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 18, 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.