NPIMap

Individual provider Active NPI

Timothy R Walmann, MD

  • Diagnostic Radiology Physician
  • Topeka, KS
National Provider Identifier
1508229808
Registry record updated Oct 6, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
04-43526 Issued in KS
Practice address
1500 SW 10TH Ave
Topeka, KS 66604-1301
Phone
(785) 354-6171
Fax
(785) 354-5125
NPI assigned
Apr 4, 2016
Last updated
Oct 6, 2026By the provider in NPPES
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Oct 6, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X 04-43526 KS Primary

Addresses

Primary practice location

1500 SW 10TH Ave
Topeka, KS 66604-1301

Mailing address

11928 Lakeside Dr Apt 1628
Overland Park, KS 66213-4121
Phone (785) 323-7422

Other practice location 1

11928 Lakeside Dr
Apt 1628
Overland Park, KS 66213-1697
Phone (785) 323-7422

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20210830000471 KS Practitioner - Diagnostic Radiology 2264727197 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
University of Kansas School of Med (KC/Wich/Sal), 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Radiology and Nuclear Medicine LLCGroup PAC ID 3274425772, 30 clinicians

Practice addresses (Care Compare)

4205 Nicklaus Dr
Lawrence, KS 66047-2051
Phone (877) 567-6360

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
04-43526KSMDDiagnostic Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Radiology and Nuclear Medicine LLC Diagnostic Radiology CurrentSince Aug 1, 2021 Accepting new patients
Cotton-O'Neil Clinic Revocable Trust CurrentSince Aug 30, 2021 Accepting new patients
Cotton-O'Neil Clinic Revocable Trust CurrentSince Aug 30, 2021 Accepting new patients
Amberwell Atchison Association PastSince Oct 21, 2022 Accepting new patients

Locations

1201 W 12th Ave
Emporia, KS 66801
Phone (620) 343-2376

1600 Community Dr
Seneca, KS 66538
Phone (785) 273-1720

1500 SW 10th Ave
Topeka, KS 66604
Phone (785) 354-5242

901 SW Garfield Ave
Topeka, KS 66606

Interoperability endpoints

  • Direct secure messaging: twalmann371082@ahs.direct-ci.com

Organizations & group practices 4

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.

Hospital & facility affiliations 6

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

NPI Registry JSON

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

{
    "created_epoch": "1459728000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1791244800000",
    "number": "1508229808",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "11928 LAKESIDE DR APT 1628",
            "city": "OVERLAND PARK",
            "state": "KS",
            "postal_code": "662134121",
            "telephone_number": "785-323-7422"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1500 SW 10TH AVE",
            "city": "TOPEKA",
            "state": "KS",
            "postal_code": "666041301",
            "telephone_number": "785-354-6171",
            "fax_number": "785-354-5125"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "11928 Lakeside Dr",
            "address_2": "Apt 1628",
            "address_purpose": "LOCATION",
            "city": "Overland Park",
            "state": "KS",
            "postal_code": "662131697",
            "country_code": "US",
            "telephone_number": "785-323-7422",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WALMANN",
        "first_name": "TIMOTHY",
        "middle_name": "R",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2016-04-04",
        "last_updated": "2026-10-06",
        "certification_date": "2026-10-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "KS",
            "license": "04-43526",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Topeka, KS

Sources for this page

Verify at the official NPI Registry.