Quick answers
- Which hospitals does Robert C. Frazier work at?
- Medicare's official clinician data lists Robert C. Frazier at 4 hospitals: Mercy Hospital Jefferson, Mercy Hospital South, Mercy Hospital St Louis and Mercy Hospital Washington. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert C. Frazier see patients?
- Medicare's clinician data lists 2 practice locations, including Maryville, IL and Washington, MO. Call before your visit to confirm the address.
- What is Robert C. Frazier's specialty?
- Medicare lists Radiation Oncology as the primary specialty.
- Does Robert C. Frazier accept Medicare assignment?
- Yes. Medicare's clinician data says Robert C. Frazier 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.
- Does Robert C. Frazier offer telehealth?
- Medicare's clinician data says Robert C. Frazier offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Robert C. Frazier?
- (618) 288-9044, as listed in official Medicare / NPI Registry data.
- What is Robert C. Frazier's NPI number?
- 1821051947. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robert C. Frazier works
Medicare's Facility Affiliation Data lists Robert C. Frazier at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Hospital JeffersonCrystal City, MO · Acute Care Hospital · CCN 260023
- Mercy Hospital SouthSaint Louis, MO · Acute Care Hospital · CCN 260077
- Mercy Hospital St LouisSaint Louis, MO · Acute Care Hospital · CCN 260020
- Mercy Hospital WashingtonWashington, MO · Acute Care Hospital · CCN 260052
Practice locations
Addresses where Robert C. Frazier is enrolled with Medicare (CMS data updated 2026-10-02).
- 6836 State Route 162Maryville, IL 62062 (618) 288‑9044
- 901 Patients 1st DrWashington, MO 63090 (636) 231‑6252
Group practices
Medicare enrollment lists Robert C. Frazier as a member of this group (CMS data updated 2026-10-02).
- West County Radiological Group Inc102 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in Maryville
Clinicians with the same Medicare primary specialty in Maryville, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Virginia Commonwealth University, School Of Medicine |
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1821051947 |
| 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