Eugene Y Chang, MD

Primary specialty

Retina Specialist (Ophthalmology) PhysicianTaxonomy code 207WX0107X

License

A77825 Issued in CA

Practice address

5832 Beach Blvd Unit 109
Buena Park, CA 90621-5500

Phone

(714) 228-1888

Fax

(714) 676-1984

NPI assigned

Jul 22, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 4

Addresses

Other identifiers 2

Medicare fee-for-service enrollment

Enrolled in CA, OR2 enrollments

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 2

Specialty

Ophthalmology

Education

Tufts University School of Medicine, 2000

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Azul Vision IncGroup PAC ID 2264851740, 49 clinicians

California Eye Specialists Medical Group IncGroup PAC ID 6800793381, 26 clinicians

Eyecare Medical CorporationGroup PAC ID 4981597481, 6 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations (25 of 45)

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

Interoperability endpoints

• Direct secure messaging: eugene.chang.p1@direct.atlantiseyecare.nextgenshare.com
• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/

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.

• Azul Vision Inc.

  dba Azul Vision

  • Ophthalmology Physician
  • Pasadena, CA
  • NPI 1285247528
  Medicare reassignment Care Compare group NPD
• California Eye Specialists Medical Group, Inc

  • Specialist
  • Pasadena, CA
  • NPI 1699713099
  Medicare reassignment Care Compare group NPD
• Eyecare Medical Corporation

  dba Lasik Eye Center Medical Corporation

  • Ophthalmology Physician
  • Buena Park, CA
  • NPI 1427016120
  Medicare reassignment Care Compare group NPD
• Bethel Eye Center Medical Corporation

  dba Bethel Eye Center

  • Ophthalmology Physician
  • Los Angeles, CA
  • NPI 1972980191
  Medicare reassignment NPD
• Eyecare Specialists Medical Group, Inc

  dba Atlantis Eyecare

  • Ophthalmology Physician
  • Anaheim, CA
  • NPI 1437181930
  Medicare reassignment NPD
• Eyecare Specialists Medical Group, Inc

  dba Atlantis Surgery Center @ Montebello.

  • Ambulatory Surgical Clinic/Center
  • Montebello, CA
  • NPI 1871057786
  Medicare reassignment NPD
• Oregon Retina Specialists, LLC

  dba Oregon Retina Center

  • Ophthalmology Physician
  • Medford, OR
  • NPI 1285812123
  Medicare reassignment NPD
• Eyecare Medical Corporation

  dba Lasik Eye Center Medical Corporation

  • Ophthalmology Physician
  • Artesia, CA
  • NPI 1932580198
  NPD
• Eyecare Specialists Medical Group, Inc

  dba Atlantis Eyecare

  • Ophthalmology Physician
  • Palm Desert, CA
  • NPI 1346858537
  NPD
• Eyecare Specialists Medical Group, Inc.

  dba Atlantis Eyecare

  • Ophthalmology Physician
  • Santa Ana, CA
  • NPI 1538791025
  NPD
• Anaheim Memorial Medical Center

  • General Acute Care Hospital
  • Anaheim, CA
  • NPI 1295782381
  NPD (past)
• Doctors Hospital of Riverside LLC

  dba Parkview Community Hospital Medical Center

  • General Acute Care Hospital
  • Riverside, CA
  • NPI 1124596382
  NPD (past)

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

{
    "created_epoch": "1121990400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780012800000",
    "number": "1265432991",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 190",
            "city": "BUENA PARK",
            "state": "CA",
            "postal_code": "906210190",
            "telephone_number": "714-228-1888",
            "fax_number": "714-676-1984"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5832 BEACH BLVD UNIT 109",
            "city": "BUENA PARK",
            "state": "CA",
            "postal_code": "906215500",
            "telephone_number": "714-228-1888",
            "fax_number": "714-676-1984"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "71956 Magnesia Falls Dr",
            "address_purpose": "LOCATION",
            "city": "Rancho Mirage",
            "state": "CA",
            "postal_code": "922704901",
            "country_code": "US",
            "telephone_number": "760-621-8896",
            "fax_number": "714-676-1984",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CHANG",
        "first_name": "EUGENE",
        "middle_name": "Y",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-07-22",
        "last_updated": "2026-05-29",
        "certification_date": "2026-05-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "IL",
            "license": "036111048",
            "primary": false
        },
        {
            "code": "207W00000X",
            "taxonomy_group": "",
            "desc": "Ophthalmology",
            "state": "OR",
            "license": "MD183525",
            "primary": false
        },
        {
            "code": "207WX0107X",
            "taxonomy_group": "",
            "desc": "Ophthalmology, Retina Specialist",
            "state": "CA",
            "license": "A77825",
            "primary": true
        },
        {
            "code": "207WX0107X",
            "taxonomy_group": "",
            "desc": "Ophthalmology, Retina Specialist",
            "state": "OR",
            "license": "MD183525",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "036111048",
            "state": "IL"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1265432991",
            "state": "CA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Swapna Chacko
• Ivonne Chaikittirattana
• Mirna R Chambi, MD
• Alicia Chang
• Edgar Jason Chang, D.C.
• Hannah Chang, OTR/L
• Hubert Kim Chang, DC
• Michael Jung-Chan Chang, DMD
• Paul Soojin Chang, M.D.
• Sunhee Chang, ACUPUNCTURIST

• Retina Specialist (Ophthalmology) Physician in Buena Park, CA
• Providers in Buena Park, CA by specialty
• Retina Specialist (Ophthalmology) Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 29, 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.