Leanna Wendy Mah, M.D.

Primary specialty

Urology PhysicianTaxonomy code 208800000X

License

MD200076 Issued in OR

Practice address

9900 SE Sunnyside Rd
Clackamas, OR 97015-9777

Phone

(800) 813-2000

NPI assigned

May 27, 2014

Sex

Female

Sole proprietor

Yes

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

Enrolled in OR, WA2 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

Urology

Education

Oregon Health Sciences University School of Medicine, 2014

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Kaiser Foundation Health Plan of the NorthwestGroup PAC ID 5799688230, 1,805 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Kaiser Sunnyside Medical Center Hospital, Clackamas, OR, CCN 380091

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

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.

• Kaiser Foundation Health Plan of the Northwest

  • General Practice Physician
  • Portland, OR
  • NPI 1184786527

  WA

  Medicare reassignment Care Compare group NPD
• Kaiser Foundation Health Plan of the Northwest

  • General Practice Physician
  • Portland, OR
  • NPI 1871848457
  NPD
• Kaiser Foundation Health Plan of the Northwest

  • Clinic/Center
  • Hillsboro, OR
  • NPI 1942718622
  NPD

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

• Kaiser Foundation Hospitals

  • General Acute Care Hospital
  • Clackamas, OR
  • NPI 1124182902
  Care Compare affiliation

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

{
    "created_epoch": "1401148800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753833600000",
    "number": "1649682592",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "500 NE MULTNOMAH ST FL 11",
            "city": "PORTLAND",
            "state": "OR",
            "postal_code": "972322023"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9900 SE SUNNYSIDE RD",
            "city": "CLACKAMAS",
            "state": "OR",
            "postal_code": "970159777",
            "telephone_number": "800-813-2000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2315 Stockton Blvd # Op512",
            "address_purpose": "LOCATION",
            "city": "Sacramento",
            "state": "CA",
            "postal_code": "958172201",
            "country_code": "US",
            "telephone_number": "503-752-2520",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MAH",
        "first_name": "LEANNA",
        "middle_name": "WENDY",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2014-05-27",
        "last_updated": "2025-07-30",
        "certification_date": "2025-07-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208800000X",
            "taxonomy_group": "",
            "desc": "Urology",
            "state": "OR",
            "license": "MD200076",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Rebecca Spann Macgregor, MD
• Alain Denis Machtelinckx
• Martha Lynn Maclin, MD
• Cody Macmillan, M.D.
• Kristy Ann Maffit-Schluter, PHARMD
• Robert Scott Mahan, M.D.
• Katelin Maher
• Shannon Mahoney
• Angela Koon Major, RD
• Waseem Makhoul, MD

• Urology Physician in Clackamas, OR
• Providers in Clackamas, OR by specialty
• Urology Physician in Oregon

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 30, 2025; 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.