Harrison John Gerdes, MD

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

MD-49846 Issued in IA

Practice address

200 Hawkins Dr
Iowa City, IA 52242-1009

Phone

(319) 356-2633

Fax

(319) 356-2940

NPI assigned

Mar 26, 2018

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in MN, IA2 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

Anesthesiology

Education

Medical College of Wisconsin, 2018

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

State University of IowaGroup PAC ID 7618884230, 1,886 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• University of Iowa Hospital & Clinics Hospital, Iowa City, IA, CCN 160058

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: hgerdes247739@uihcdirect.org

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.

• State University of Iowa

  • Family Medicine Physician
  • Iowa City, IA
  • NPI 1477554814

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Mayo Clinic Health System-Southeast Minnesota Region

  • Multi-Specialty Clinic/Center
  • Albert Lea, MN
  • NPI 1891701637
  Medicare reassignment NPD
• Mayo Clinic Health System-Southwest Minnesota Region

  • Multi-Specialty Clinic/Center
  • Mankato, MN
  • NPI 1578545422
  Medicare reassignment NPD
• State University of Iowa

  • Family Medicine Physician
  • Iowa City, IA
  • NPI 1730138579
  NPD
• Mayo Clinic Health System-Southeast Minnesota Region

  • Multi-Specialty Clinic/Center
  • Owatonna, MN
  • NPI 1275060030
  NPD
• Mayo Clinic Health System-Southeast Minnesota Region

  • Clinic Pharmacy
  • Cannon Falls, MN
  • NPI 1699597468
  NPD
• Mayo Clinic Health System-Southwest Minnesota Region

  • Multi-Specialty Clinic/Center
  • New Prague, MN
  • NPI 1477089407
  NPD
• Mayo Clinic Health System-Southwest Minnesota Region

  • Multi-Specialty Clinic/Center
  • Waseca, MN
  • NPI 1518494251
  NPD
• State University of Iowa

  • Student Health Clinic/Center
  • Iowa City, IA
  • NPI 1285635664
  NPD (past)

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

• State University of Iowa

  • General Acute Care Hospital
  • Iowa City, IA
  • NPI 1376544320
  Care Compare affiliation

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

{
    "created_epoch": "1522022400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1742860800000",
    "number": "1518462209",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "200 HAWKINS DR",
            "city": "IOWA CITY",
            "state": "IA",
            "postal_code": "522421009",
            "telephone_number": "319-356-2633",
            "fax_number": "319-356-2940"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 HAWKINS DR",
            "city": "IOWA CITY",
            "state": "IA",
            "postal_code": "522421009",
            "telephone_number": "319-356-2633",
            "fax_number": "319-356-2940"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "701 W Forevergreen Rd",
            "address_purpose": "LOCATION",
            "city": "North Liberty",
            "state": "IA",
            "postal_code": "523179848",
            "country_code": "US",
            "telephone_number": "319-356-2633",
            "fax_number": "319-356-3949",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GERDES",
        "first_name": "HARRISON",
        "middle_name": "JOHN",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-03-26",
        "last_updated": "2025-03-25",
        "certification_date": "2025-03-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "MN",
            "license": "65844",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MN",
            "license": "29243",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "IA",
            "license": "MD-49846",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Amith George Jacob, M.D.
• Nicholas Antony George-Jones, MD
• Thomas Andrew Georgou, PAC
• Douglas Ray Geraets, PHARM.D.
• Julie Kay Gerard, RN
• Nicole Kristine Gerdts
• Alicia Gerke, M.D.
• Henning Gerke, MD
• Hope Gerlach, M.S.
• Angela Gerot, LMSW

• Anesthesiology Physician in Iowa City, IA
• Providers in Iowa City, IA by specialty
• Anesthesiology Physician in Iowa

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 25, 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.