Ruey-Kang R. Chang, M.D.

Primary specialty

Pediatric Cardiology PhysicianTaxonomy code 2080P0202X

License

A53331 Issued in CA

Practice address

1360 Valley Vista Dr
Ste 203
Diamond Bar, CA 91765-3953

Phone

(310) 866-0709

Fax

(310) 755-3108

NPI assigned

Jan 27, 2006

Last updated

Jul 13, 2026By the provider in NPPES

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• County of Los Angeles

  dba County of Los Angeles Harbor UCLA Medical Center

  • General Acute Care Hospital
  • Torrance, CA
  • NPI 1851363188
  Medicare reassignment NPD
• Ekg360

  • Physiological Laboratory
  • Diamond Bar, CA
  • NPI 1255001806
  NPD Authorized official
• QT Medical, Inc.

  • Physiological Laboratory
  • Diamond Bar, CA
  • NPI 1780353607
  NPD Authorized official
• County of Los Angeles

  • Clinic/Center
  • Los Angeles, CA
  • NPI 1295407401
  NPD

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

{
    "created_epoch": "1138320000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1427029677",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1360 VALLEY VISTA DR",
            "address_2": "STE 203",
            "city": "DIAMOND BAR",
            "state": "CA",
            "postal_code": "917653953",
            "telephone_number": "310-866-0709",
            "fax_number": "310-755-3108"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1360 VALLEY VISTA DR",
            "address_2": "STE 203",
            "city": "DIAMOND BAR",
            "state": "CA",
            "postal_code": "917653953",
            "telephone_number": "310-866-0709",
            "fax_number": "310-755-3108"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHANG",
        "first_name": "RUEY-KANG",
        "middle_name": "R.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-27",
        "last_updated": "2026-07-13",
        "certification_date": "2021-09-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0202X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Cardiology",
            "state": "CA",
            "license": "A53331",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Alice Darwin Chang
• Glenn Hsuan Chen Chang, D.D.S.
• Hsing Wen Chang, OT
• Jane Chang, OTD
• Jenny Alum Chang, PHARMD
• Shenfang Sharon Chang
• Vorya Chanim
• Connie Chao
• Riley Charles, DPT
• Colleen Chau, DPT

• Pediatric Cardiology Physician in Diamond Bar, CA
• Providers in Diamond Bar, CA by specialty
• Pediatric Cardiology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.