Quick answers
- Which hospitals does Nathaniel E. Clark work at?
- Medicare's official clinician data lists Nathaniel E. Clark at 5 hospitals: Ferrell Hospital Community Foundations, Heartland Regional Medical Center, Herrin Hospital, Northwestern Medicine Central Dupage Hospital and SSM Health Saint Louis University Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Nathaniel E. Clark see patients?
- Medicare's clinician data lists 4 practice locations, including Harrisburg, IL and Marion, IL. Call before your visit to confirm the address.
- What is Nathaniel E. Clark's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Nathaniel E. Clark accept Medicare assignment?
- Yes. Medicare's clinician data says Nathaniel E. Clark 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 Nathaniel E. Clark?
- (618) 767-6050, as listed in official Medicare / NPI Registry data.
- What is Nathaniel E. Clark's NPI number?
- 1063660074. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nathaniel E. Clark works
Medicare's Facility Affiliation Data lists Nathaniel E. Clark at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Ferrell Hospital Community FoundationsEldorado, IL · Critical Access Hospital · CCN 141324
- Heartland Regional Medical CenterMarion, IL · Acute Care Hospital · CCN 140184
- Herrin HospitalHerrin, IL · Acute Care Hospital · CCN 140011
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · CCN 140242
- SSM Health Saint Louis University HospitalSaint Louis, MO · Acute Care Hospital · CCN 260105
Practice locations
Addresses where Nathaniel E. Clark is enrolled with Medicare (CMS data updated 2026-10-02).
- 303 S Commercial StHarrisburg, IL 62946 (618) 767‑6050
- 3329 W Deyoung StMarion, IL 62959 (618) 998‑7177
- 3331 W Deyoung StMarion, IL 62959 (618) 998‑7600
- 3333 W Deyoung StMarion, IL 62959 (618) 998‑7000
Group practices
Medicare enrollment lists Nathaniel E. Clark as a member of this group (CMS data updated 2026-10-02).
- Deaconess Illinois Specialty Clinic, Inc.148 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Harrisburg
Clinicians with the same Medicare primary specialty in Harrisburg, IL — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063660074 |
| 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