Derek Y Hsu, MD

Primary specialty

Dermatology PhysicianTaxonomy code 207N00000X

License

A172646 Issued in CA

Practice address

1125 E 17TH St Ste W248
Santa Ana, CA 92701-2205

Phone

(714) 547-5151

NPI assigned

Feb 6, 2015

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

Dermatology

Education

Northwestern University Feinberg Medical School, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

J Robert West MD IncGroup PAC ID 8729990973, 141 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

85.17 of 100Reported as group

Quality

74.51

Promoting interoperability

92

Improvement activities

40

Cost

82.72

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• BSC 65 PLUS INDIVIDUAL MAPD

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.

• J Robert West, M.D., Inc

  • Dermatology Physician
  • Newport Beach, CA
  • NPI 1932154788
  Medicare reassignment Care Compare group NPD
• Southern California Dermatology, Inc

  • Dermatology Physician
  • Santa Ana, CA
  • NPI 1386629905
  Medicare reassignment NPD
• St Joseph Hospital of Orange

  • General Acute Care Hospital
  • Orange, CA
  • NPI 1912982216
  NPD (past)
• Mymichigan Medical Center Tawas

  • General Acute Care Hospital
  • Tawas City, MI
  • NPI 1194713461
  NPD (past)

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

{
    "created_epoch": "1423180800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787529600000",
    "number": "1477944841",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1125 E 17TH ST STE W248",
            "city": "SANTA ANA",
            "state": "CA",
            "postal_code": "927012205",
            "telephone_number": "714-547-5151"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1125 E 17TH ST STE W248",
            "city": "SANTA ANA",
            "state": "CA",
            "postal_code": "927012205",
            "telephone_number": "714-547-5151"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HSU",
        "first_name": "DEREK",
        "middle_name": "Y",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-02-06",
        "last_updated": "2026-08-24",
        "certification_date": "2026-08-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207N00000X",
            "taxonomy_group": "",
            "desc": "Dermatology",
            "state": "IL",
            "license": "125070649",
            "primary": false
        },
        {
            "code": "207N00000X",
            "taxonomy_group": "",
            "desc": "Dermatology",
            "state": "CA",
            "license": "A172646",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Wyland Joshua Howell
• Hunter G Howells
• Maidah Hsen
• Lisa Hsieh-Atlas, PHARMD.
• Justine Hsieh, OD
• William Hsu
• Ying Feng Hsu, PHARM D
• HTC Imaging
• Myat Htoo, D.D.S
• Diana Hua

• Dermatology Physician in Santa Ana, CA
• Providers in Santa Ana, CA by specialty
• Dermatology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 24, 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.