Quick answers
- Which hospitals does Clark L. Williams work at?
- Medicare's official clinician data lists Clark L. Williams at 3 hospitals: Finley Hospital, Grant Regional Health Center and MercyOne Elkader Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Clark L. Williams see patients?
- Medicare's clinician data lists 4 practice locations, including Dubuque, IA, Lancaster, WI and Elkader, IA. Call before your visit to confirm the address.
- What is Clark L. Williams's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Clark L. Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Clark L. Williams 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 Clark L. Williams?
- (563) 589-2454, as listed in official Medicare / NPI Registry data.
- What is Clark L. Williams's NPI number?
- 1710911417. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Clark L. Williams works
Medicare's Facility Affiliation Data lists Clark L. Williams at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Finley HospitalDubuque, IA · Acute Care Hospital · CCN 160117
- Grant Regional Health CenterLancaster, WI · Critical Access Hospital · CCN 521322
- MercyOne Elkader Medical CenterElkader, IA · Critical Access Hospital · CCN 161319
Practice locations
Addresses where Clark L. Williams is enrolled with Medicare (CMS data updated 2026-10-02).
- 350 N Grandview AveDubuque, IA 52001
- 350 N Grandview Ave, Finley Prof Serv EdDubuque, IA 52001 (563) 589‑2454
- 507 S Monroe StLancaster, WI 53813 (608) 723‑2131
- 901 Davidson St NWElkader, IA 52043 (563) 245‑7000
Group practices
Medicare enrollment lists Clark L. Williams as a member of these groups (CMS data updated 2026-10-02).
- The Finley Hospital84 clinicians in the group
- Grant Regional Health Center Inc38 clinicians in the group
- Central Community Hospital16 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Dubuque
Clinicians with the same Medicare primary specialty in Dubuque, IA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Wisconsin School Of Medicine |
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1710911417 |
| 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