Michael Craig Olthoff, MD

Primary specialty

Infectious Disease PhysicianTaxonomy code 207RI0200X

License

MD-46612 Issued in IA

Practice address

200 Hawkins Dr
Iowa City, IA 52242-1009

Phone

(319) 356-7740

Fax

(319) 356-4600

NPI assigned

Jun 12, 2015

Last updated

Aug 5, 2025By 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 3

Addresses

Medicare fee-for-service enrollment

Enrolled in IA, CO2 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

Infectious DiseaseAlso: Internal Medicine

Education

University of Iowa, RJ & L Carver College of Medicine, 2015

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
• University of Iowa Health Care Medical Center Down Hospital, Iowa City, IA, CCN 160029

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: molthoff@rmi2047.srs-direct.com
• Direct secure messaging: molthoff693284@direct.unitypoint.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.

• State University of Iowa

  dba University of Iowa Health Care

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

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Iowa Physicians Clinic Medical Foundation

  dba UnityPoint Clinic

  • General Practice Physician
  • West Des Moines, IA
  • NPI 1366425274

  Internal Medicine

  Medicare reassignment NPD
• Rocky Mountain Infectious Disease Specialists, P.C.

  • Preferred Provider Organization
  • Aurora, CO
  • NPI 1629078993
  Medicare reassignment NPD
• St Luke's Methodist Hospital

  • General Acute Care Hospital
  • Cedar Rapids, IA
  • NPI 1083708226
  NPD
• State University of Iowa

  dba Student Health & Wellness

  • 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

  dba University of Iowa Health Care Medical Center

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

  dba University of Iowa Health Care Medical Center Downtown

  • General Acute Care Hospital
  • Iowa City, IA
  • NPI 1699541870
  Care Compare affiliation

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

{
    "created_epoch": "1434067200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754352000000",
    "number": "1134500408",
    "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": "319-356-7740",
            "fax_number": "319-356-4600"
        },
        {
            "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": "319-356-7740",
            "fax_number": "319-356-4600"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "500 E Market St",
            "address_purpose": "LOCATION",
            "city": "Iowa City",
            "state": "IA",
            "postal_code": "522452633",
            "country_code": "US",
            "telephone_number": "319-356-7740",
            "fax_number": "319-356-4600",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "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"
        },
        {
            "address_1": "540 E Jefferson St Ste 400",
            "address_purpose": "LOCATION",
            "city": "Iowa City",
            "state": "IA",
            "postal_code": "522452479",
            "country_code": "US",
            "telephone_number": "319-356-7740",
            "fax_number": "319-356-4600",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "OLTHOFF",
        "first_name": "MICHAEL",
        "middle_name": "CRAIG",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-06-12",
        "last_updated": "2025-08-05",
        "certification_date": "2025-08-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IA",
            "license": "MD-46612",
            "primary": false
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "CO",
            "license": "DR.0070416",
            "primary": false
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "IA",
            "license": "MD-46612",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Connie J Olson, R.D.,L.D.,M.A.
• Julie Marie Olson, R.N.
• Mark David Olson, PA-C, MPAS
• Richard J Olson, MD
• Melissa Leigh Olthoff, PA-C
• Kate Marie Oltrogge, PHARMD
• Erin L Olufs, PH.D.
• Angela Crystal Olvera, MD, PHD
• Omaha Vamc
• Omaha Vamc

• Infectious Disease Physician in Iowa City, IA
• Providers in Iowa City, IA by specialty
• Infectious Disease Physician in Iowa

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 5, 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.