Hassaan A Zia, MD

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

30685 Issued in OK

Practice address

3435 NW 56TH St Ste 101
Oklahoma City, OK 73112-4495

Phone

(405) 633-9101

Fax

(405) 633-9104

NPI assigned

Jun 29, 2014

Last updated

Aug 26, 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

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in LA, WI2 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

Gastroenterology

Education

Other, 2012

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Froedtert Andthe Medical College of Wisconsin Community Physicians IncGroup PAC ID 3678760063, 1,265 clinicians

The Medical College of Wisconsin IncGroup PAC ID 2668384371, 2,092 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Community Memorial Hospital Hospital, Menomonee Falls, WI, CCN 520103
• Froedtert Memorial Lutheran Hospital Hospital, Milwaukee, WI, CCN 520177
• St Josephs Community Hospital West Bend Hospital, West Bend, WI, CCN 520063

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: hzia825313@direct.froedtert.com

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.

• Froedtert &the Medical College of Wisconsin Community Physicians, Inc.

  • Internal Medicine Physician
  • Menomonee Falls, WI
  • NPI 1568787448
  Medicare reassignment Care Compare group NPD
• The Medical College of Wisconsin, Inc.

  • Internal Medicine Physician
  • Milwaukee, WI
  • NPI 1699720086
  Medicare reassignment Care Compare group NPD
• Lsu Health Sciences Center Shreveport Faculty Group Practice

  • Family Medicine Physician
  • Shreveport, LA
  • NPI 1013374222

  Internal Medicine

  Medicare reassignment NPD
• Froedtert &the Medical College of Wisconsin Community Physicians, Inc.

  • Durable Medical Equipment & Medical Supplies
  • Wauwatosa, WI
  • NPI 1154947224
  NPD
• The Medical College of Wisconsin Inc

  • Case Management Agency
  • Milwaukee, WI
  • NPI 1649521105
  NPD (past)

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

• Community Memorial Hospital of Menomonee Falls Inc

  dba Froedtert Menomonee Falls Hospital

  • General Acute Care Hospital
  • Menomonee Falls, WI
  • NPI 1609822881
  Care Compare affiliation
• Froedtert Memorial Lutheran Hospital, Inc.

  dba CDI-Froedtert Memorial Lutheran Hospital

  • General Acute Care Hospital
  • Milwaukee, WI
  • NPI 1255334173
  Care Compare affiliation
• St. Josephs Community Hospital of West Bend Inc.

  dba Froedtert West Bend Hospital

  • General Acute Care Hospital
  • West Bend, WI
  • NPI 1851336044
  Care Compare affiliation

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

{
    "created_epoch": "1404000000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787702400000",
    "number": "1669887519",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3001 QUAIL SPRINGS PKWY FL 5",
            "city": "OKLAHOMA CITY",
            "state": "OK",
            "postal_code": "731342640",
            "telephone_number": "405-633-9101",
            "fax_number": "405-633-9104"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3435 NW 56TH ST STE 101",
            "city": "OKLAHOMA CITY",
            "state": "OK",
            "postal_code": "731124495",
            "telephone_number": "405-633-9101",
            "fax_number": "405-633-9104"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ZIA",
        "first_name": "HASSAAN",
        "middle_name": "A",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-06-29",
        "last_updated": "2026-08-26",
        "certification_date": "2026-08-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "OK",
            "license": "30685",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100278079",
            "state": "WI"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Le Zheng
• John W. Zhong, MD
• Ryan L Zhu
• Yefei Zhu, MD
• Fayha Faisal Zia
• Scott Carl Zickefoose
• Chelsie Lynn Ziegler
• Lena Zielinski
• Brian Matthew Zimmer, D.O.
• Sarah Elizabeth Zimmer

• Gastroenterology Physician in Oklahoma City, OK
• Providers in Oklahoma City, OK by specialty
• Gastroenterology Physician in Oklahoma

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 26, 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.