Ea-Sle Chang, M.D.

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

2026018533 Issued in MO

Practice address

621 S New Ballas Rd Ste 560a
Saint Louis, MO 63141-8261

Phone

(314) 251-6440

Fax

(314) 251-4456

NPI assigned

Jul 7, 2015

Last updated

Jul 13, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 4

Addresses

Other names 1

• Iris Chang Other name

Medicare fee-for-service enrollment

Enrolled in IA

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

General Surgery

Education

Other, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mercy Clinics IncGroup PAC ID 7911810882, 441 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mercyone Des Moines Medical Center Hospital, Des Moines, IA, CCN 160083
• Mercyone Newton Medical Center Hospital, Newton, IA, CCN 160032

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: echang3941723@direct.trinity-health.org

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.

• Mercy Clinics, Inc.

  dba MercyOne Clive Family Medicine Clinic

  • Primary Care Clinic/Center
  • Clive, IA
  • NPI 1487670923
  Medicare reassignment Care Compare group NPD
• Mercy Clinic Trauma and General Surgery, LLC

  • Trauma Surgery Physician
  • Saint Louis, MO
  • NPI 1699825695
  NPD
• Mercy Clinics, Inc

  dba MercyOne Des Moines Trauma Care

  • Surgery Physician
  • Des Moines, IA
  • NPI 1063752459
  NPD
• Mercy Clinics, Inc.

  dba MercyOne Des Moines OB Hospitalists

  • Obstetrics & Gynecology Physician
  • Des Moines, IA
  • NPI 1508741505
  NPD
• Catholic Health Initiatives-Iowa Corp

  dba MercyOne Des Moines Medical Center

  • General Acute Care Hospital
  • Des Moines, IA
  • NPI 1508964883
  NPD (past)

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

• Catholic Health Initiatives - Iowa Corp

  dba MercyOne West Des Moines Medical Center

  • General Acute Care Hospital
  • West Des Moines, IA
  • NPI 1538395975
  Care Compare affiliation
• Catholic Health Initiatives-Iowa Corp

  dba MercyOne Des Moines Laboratory

  • Clinical Medical Laboratory
  • Des Moines, IA
  • NPI 1104982743

  Hospital

  Care Compare affiliation
• Catholic Health Initiatives-Iowa Corp

  dba MercyOne Des Moines Medical Center

  • General Acute Care Hospital
  • Des Moines, IA
  • NPI 1508964883
  Care Compare affiliation
• Catholic Health Initiatives, Ia-Corp

  dba Mercy Medical Mammography Center

  • Mammography Clinic/Center
  • Des Moines, IA
  • NPI 1477984367

  Hospital

  Care Compare affiliation
• Mercy Medical Center-Newton

  dba MercyOne Newton Medical Center

  • General Acute Care Hospital
  • Newton, IA
  • NPI 1003296179
  Care Compare affiliation

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

{
    "created_epoch": "1436227200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1932582061",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "621 S NEW BALLAS RD STE 560A",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631418261",
            "telephone_number": "314-251-6440",
            "fax_number": "314-251-4456"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "621 S NEW BALLAS RD STE 560A",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631418261",
            "telephone_number": "314-251-6440",
            "fax_number": "314-251-4456"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHANG",
        "first_name": "EA-SLE",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2015-07-07",
        "last_updated": "2026-07-13",
        "certification_date": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "MO",
            "license": "2026018533",
            "primary": true
        },
        {
            "code": "2086S0102X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Critical Care",
            "state": "MO",
            "license": "2026018533",
            "primary": false
        },
        {
            "code": "2086S0102X",
            "taxonomy_group": "",
            "desc": "Surgery, Surgical Critical Care",
            "state": "IA",
            "license": "MD-48980",
            "primary": false
        },
        {
            "code": "2086S0127X",
            "taxonomy_group": "",
            "desc": "Surgery, Trauma Surgery",
            "state": "MO",
            "license": "2026018533",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "IRIS",
            "last_name": "CHANG",
            "credential": "MD",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

• Alison Chang, MD
• Andrew Lee Chang, MD
• Annie Chang, MD
• Catherine Chang, BCC
• Dennis Tian-Shu Chang, MD
• Jin-Hao Chang, DMD
• Jodie Chang, MD
• Marissa Joy Chang
• Parker CHI-Sung Chang, MD
• Ryan Juien Chang

• Surgery Physician in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Surgery Physician in Missouri

• 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.
• 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.