NPIMap

Individual provider Active NPI

Steven Patrick Thoma, M.D.

  • Urology Physician
  • Ames, IA
National Provider Identifier
1598021131
Registry record updated Mar 2, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Urology PhysicianTaxonomy code 208800000X
License
44576 Issued in IA
Practice address
1215 Duff Ave
Ames, IA 50010
Phone
(515) 239-4490
Fax
(515) 239-4771
NPI assigned
Apr 9, 2012
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Mar 2, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Urology Physician 208800000X 44576 IA Primary

Addresses

Primary practice location

1215 Duff Ave
Ames, IA 50010

Mailing address

1215 Duff Ave
Ames, IA 50010-5469
Phone (515) 239-4400

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address sthoma122183@directmcfarlandclinic.com Health Information Exchange (HIE)

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IA, MN, WI3 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 3

Enrollment IDStateProvider typePAC IDDetails
I20170915001958 IA Practitioner - Urology 4587969415 Reassigns benefits to 3 organizations
I20180827002782 MN Practitioner - Urology 4587969415 Reassigns benefits to 1 organization
I20251031003318 WI Practitioner - Urology 4587969415 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Urology
Education
Louisiana State University School of Medicine in Shreveport, 2012
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
North Iowa Mercy ClinicsGroup PAC ID 7810809076, 304 clinicians
St. Luke'S Hospital of DuluthGroup PAC ID 7113834839, 409 clinicians
McFarland Clinic PCGroup PAC ID 1254244239, 353 clinicians
Ascension Medical Group-Fox Valley Wisconsin, IncGroup PAC ID 0244142420, 260 clinicians

Practice addresses (Care Compare)

1000 4TH St SW
Mason City, IA 50401-2800

1001 E Superior St
Suite 201
Duluth, MN 55802-2228
Phone (218) 279-6230

1215 Duff Ave
Ames, IA 50010-5400
Phone (515) 239-4400

1611 S Madison St
Appleton, WI 54915-1844
Phone (920) 738-2000

250 S Crescent Dr
Mason City, IA 50401-2926

635 E US Hwy 9
Mercyone Forest City Family Medicine
Forest City, IA 50436-1028
Phone (641) 585-2904

Hospital & facility affiliations

  • Mercyone North Iowa Medical Center Hospital, Mason City, IA, CCN 160064
  • Iowa Specialty Hospital - Belmond Hospital, Belmond, IA, CCN 161301
  • Mary Greeley Medical Center Hospital, Ames, IA, CCN 160030
  • St Lukes Hospital Hospital, Duluth, MN, CCN 240047
  • Iowa Specialty Hospital - Clarion Hospital, Clarion, IA, CCN 161302

Procedures performed for Medicare patients

ProcedureNumber of procedures
Prostate resection20

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
44576IAMDUrology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
McFarland Clinic PC CurrentSince Mar 1, 2026 Accepting new patients
North Iowa Mercy Clinics Current Accepting new patients
North Iowa Mercy Clinics Current Accepting new patients
St. Luke'S Hospital of Duluth CurrentSince Oct 1, 2025 Accepting new patients
Ascension Medical Group-Fox Valley Wisconsin, Inc CurrentSince Oct 21, 2025 Accepting new patients
North Iowa Mercy Clinics CurrentSince Apr 1, 2020 Accepting new patients
Ascension Medical Group-Fox Valley Wisconsin, Inc CurrentSince Oct 21, 2025 Accepting new patients
St. Luke'S Hospital of Duluth Current Accepting new patients
St. Luke'S Hospital of Duluth CurrentSince Oct 1, 2025 Accepting new patients
Floyd County Memorial Hospital Commission Past Accepting new patients
Iowa Specialty Hospital- Clarion Past Accepting new patients
St. Luke'S Hospital of Duluth Past Accepting new patients

Locations

1215 Duff Ave
Ames, IA 50010
Phone (515) 239-4400

250 S Crescent Dr
Mason City, IA 50401
Phone (541) 422-6588

29980 Network Pl
Chicago, IL 60673

1001 E Superior St
#L201
Duluth, MN 55802
Phone (218) 249-3057

1001 E Superior St
Ste 201
Duluth, MN 55802
Phone (218) 249-3057

1015 E 1st St
Duluth, MN 55805
Phone (218) 249-7860

1611 S Madison St
Appleton, WI 54915
Phone (920) 727-4395

1501 S Madison St
Appleton, WI 54915
Phone (920) 730-4435

2700 W 9th Ave
Oshkosh, WI 54904
Phone (920) 223-0220

Interoperability endpoints

  • Direct secure messaging: sthoma3959402@direct.trinity-health.org
  • Direct secure messaging: sthoma439407@direct.aspirus.org

Organizations & group practices 13

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.

View all 13

Hospital & facility affiliations 30

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

View all 30

NPI Registry JSON

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

{
    "created_epoch": "1333929600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772409600000",
    "number": "1598021131",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1215 DUFF AVE",
            "city": "AMES",
            "state": "IA",
            "postal_code": "500105469",
            "telephone_number": "515-239-4400"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1215 DUFF AVE",
            "city": "AMES",
            "state": "IA",
            "postal_code": "50010",
            "telephone_number": "515-239-4490",
            "fax_number": "515-239-4771"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "THOMA",
        "first_name": "STEVEN",
        "middle_name": "PATRICK",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2012-04-09",
        "last_updated": "2026-03-02",
        "certification_date": "2026-03-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208800000X",
            "taxonomy_group": "",
            "desc": "Urology",
            "state": "IA",
            "license": "44576",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "sthoma122183@directmcfarlandclinic.com",
            "affiliation": "N",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "address_1": "1215 Duff Ave",
            "city": "Ames",
            "state": "IA",
            "country_code": "US",
            "postal_code": "50010",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Ames, IA

Sources for this page

Verify at the official NPI Registry.