Diana Julia Chang, MD

Primary specialty

Otolaryngology PhysicianTaxonomy code 207Y00000X

License

A199082 Issued in CA

Practice address

12630 Monte Vista Rd Ste 206
Poway, CA 92064-2527

Phone

(858) 674-1165

NPI assigned

Apr 13, 2021

Sex

Female

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

Not listed in the public Medicare enrollment file

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.

Specialty

Otolaryngology

Education

Stanford University School of Medicine, 2021

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: dchang371939@direct.llu.edu

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.

• Ashish K Wadhwa MD a Medical Corporation

  dba Rancho Ear, Nose & Throat

  • Otolaryngology Physician
  • Poway, CA
  • NPI 1194814731
  NPD
• Palomar Health

  dba Palomar Medical Center Escondido

  • General Acute Care Hospital
  • Escondido, CA
  • NPI 1457321317
  NPD (past)

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

{
    "created_epoch": "1618272000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785283200000",
    "number": "1578143491",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "12630 MONTE VISTA RD STE 206",
            "city": "POWAY",
            "state": "CA",
            "postal_code": "920642527",
            "telephone_number": "858-674-1165"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "12630 MONTE VISTA RD STE 206",
            "city": "POWAY",
            "state": "CA",
            "postal_code": "920642527",
            "telephone_number": "858-674-1165"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHANG",
        "first_name": "DIANA",
        "middle_name": "JULIA",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-04-13",
        "last_updated": "2026-07-29",
        "certification_date": "2026-07-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "CA",
            "license": "A199082",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Liliana Cerrillo
• Lauren Chamberlin
• Edmond Chan, M.D.
• Oriana Chan, PT, DPT
• Aeria Chang, M.D.
• Helen Yuk Yu Chang, M.D.
• Connor Chappell
• Charles D. Callery, M.D., Inc
• Iman Chatman-Dixon
• Jacob Timothy Chatton

• Otolaryngology Physician in Poway, CA
• Providers in Poway, CA by specialty
• Otolaryngology Physician in California

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