Quick answers
- Which hospitals does Denise L. Buck work at?
- Medicare's official clinician data lists Denise L. Buck at 2 hospitals: Mercy Hospital South and Mercy Hospital St Louis. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Denise L. Buck see patients?
- Medicare's clinician data lists 1 practice location in Saint Louis, MO. Call before your visit to confirm the address.
- What is Denise L. Buck's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Denise L. Buck accept Medicare assignment?
- Yes. Medicare's clinician data says Denise L. Buck 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 Denise L. Buck?
- (314) 833-4030, as listed in official Medicare / NPI Registry data.
- What is Denise L. Buck's NPI number?
- 1083760599. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Denise L. Buck works
Medicare's Facility Affiliation Data lists Denise L. Buck at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Hospital SouthSaint Louis, MO · Acute Care Hospital · CCN 260077
- Mercy Hospital St LouisSaint Louis, MO · Acute Care Hospital · CCN 260020
Practice locations
Addresses where Denise L. Buck is enrolled with Medicare (CMS data updated 2026-10-02).
- 9417 S BroadwaySaint Louis, MO 63125 (314) 833‑4030
Group practices
Medicare enrollment lists Denise L. Buck as a member of this group (CMS data updated 2026-10-02).
- Institute for Research and Education in Family Medicine9 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Missouri, Columbia School Of Medicine |
| Graduation year | 1995 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083760599 |
| 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