Quick answers
- Which hospitals does William K. Winkelmeyer work at?
- Medicare's official clinician data lists William K. Winkelmeyer at 5 hospitals: Boone Hospital Center, Bothwell Regional Health Center, Macon County Samaritan Memorial Hospital, Moberly Regional Medical Center and University of Missouri Health Care. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William K. Winkelmeyer see patients?
- Medicare's clinician data lists 4 practice locations, including Columbia, MO, Moberly, MO and Marshall, MO. Call before your visit to confirm the address.
- What is William K. Winkelmeyer's specialty?
- Medicare lists Nephrology as the primary specialty.
- Does William K. Winkelmeyer accept Medicare assignment?
- Yes. Medicare's clinician data says William K. Winkelmeyer accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for William K. Winkelmeyer?
- (573) 499-0642, as listed in official Medicare / NPI Registry data.
- What is William K. Winkelmeyer's NPI number?
- 1316943475. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William K. Winkelmeyer works
Medicare's Facility Affiliation Data lists William K. Winkelmeyer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Boone Hospital CenterColumbia, MO · Acute Care Hospital · CCN 260068
- Bothwell Regional Health CenterSedalia, MO · Acute Care Hospital · CCN 260009
- Macon County Samaritan Memorial HospitalMacon, MO · Critical Access Hospital · CCN 261313
- Moberly Regional Medical CenterMoberly, MO · Acute Care Hospital · CCN 260074
- University of Missouri Health CareColumbia, MO · Acute Care Hospital · CCN 260141
Practice locations
Addresses where William K. Winkelmeyer is enrolled with Medicare (CMS data updated 2026-10-02).
- 1205 W BroadwayColumbia, MO 65203 (573) 499‑0642
- 1511 Union AveMoberly, MO 65270 (573) 499‑0642
- 2303 S US Hwy 65Marshall, MO 65340 (573) 499‑0642
- 806 Medical Park DrMexico, MO 65265 (573) 499‑0642
Group practices
Medicare enrollment lists William K. Winkelmeyer as a member of this group (CMS data updated 2026-10-02).
- Nephrology and Hypertension Associates7 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Columbia
Clinicians with the same Medicare primary specialty in Columbia, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1981 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1316943475 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians