Active NPI
Kevin R Rier, M.D.
- Urology Physician
- Mason City, IA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Urology Physician
- License
- 27830
- Practice address
- 250 S Crescent Dr
Mason City, IA 50401-2926 - Phone
- (641) 494-5280
- Fax
- (641) 494-5281
- NPI assigned
- Oct 7, 2005
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Urology Physician | 208800000X | 27830 | IA | Primary |
Addresses
Primary practice location
250 S Crescent Dr
Mason City, IA 50401-2926
Mailing address
250 S Crescent Dr
Mason City, IA 50401-2926
Phone (641) 494-5400
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0111310 | Medicaid | IA |
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | urologynurse@mcclinic.direct-ci.net | Direct |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in IA, MN
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 2
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 27830 | IA | MD | Urology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| North Iowa Mercy Clinics | Current | Accepting new patients | |
| North Iowa Mercy Clinics | Current | Accepting new patients | |
| Mason City Ambulatory Surgery Center, LLC | Current | Accepting new patients | |
| Mason City Ambulatory Surgery Center, LLC | Current | Accepting new patients | |
| North Iowa Mercy Clinics | Current | Accepting new patients | |
| Floyd County Memorial Hospital Commission | Past | Accepting new patients |
Locations
250 S Crescent Dr
Mason City, IA 50401
Phone (541) 422-6588
Interoperability endpoints
- krier3955715@direct.trinity-health.org
- krier85442@uihcdirect.org
Organizations & group practices 6
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.
-
dba MercyOne North Iowa Anesthesia Professional Services
- Anesthesiology Physician
- Mason City, IA
- NPI 1780278242
-
dba Mason City Surgery Center
- Anesthesiology Physician
- Mason City, IA
- NPI 1689251720
-
dba Mason City Surgery Center
- Ambulatory Surgical Clinic/Center
- Mason City, IA
- NPI 1902841398
-
dba MercyOne North Iowa Heart Center
- Cardiovascular Disease Physician
- Mason City, IA
- NPI 1801147269
-
dba Mercy Family Clinic-Forest City
- Family Medicine Physician
- Forest City, IA
- NPI 1811003015
-
- Critical Access Hospital
- Charles City, IA
- NPI 1265402390
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1128643200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1752624000000",
"number": "1992793566",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "250 S CRESCENT DR",
"city": "MASON CITY",
"state": "IA",
"postal_code": "504012926",
"telephone_number": "641-494-5400",
"fax_number": "641-494-5403"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "250 S CRESCENT DR",
"city": "MASON CITY",
"state": "IA",
"postal_code": "504012926",
"telephone_number": "641-494-5280",
"fax_number": "641-494-5281"
}
],
"practiceLocations": [],
"basic": {
"last_name": "RIER",
"first_name": "KEVIN",
"middle_name": "R",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-10-07",
"last_updated": "2025-07-16",
"certification_date": "2025-07-16",
"status": "A"
},
"taxonomies": [
{
"code": "208800000X",
"taxonomy_group": "",
"desc": "Urology",
"state": "IA",
"license": "27830",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "0111310",
"state": "IA"
}
],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "urologynurse@mcclinic.direct-ci.net",
"affiliation": "N",
"endpointDescription": "Mason City Clinic Direct Email Address",
"use": "DIRECT",
"useDescription": "Direct",
"contentType": "OTHER",
"contentTypeDescription": "Other",
"contentOtherDescription": "CCDA",
"address_1": "250 S Crescent Dr",
"city": "Mason City",
"state": "IA",
"country_code": "US",
"postal_code": "504012926",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Mason City, IA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 16, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.