Quick answers
- Where does John K. Appelbaum see patients?
- Medicare's clinician data lists 1 practice location in Saint Louis, MO. Call before your visit to confirm the address.
- What is John K. Appelbaum's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does John K. Appelbaum accept Medicare assignment?
- Yes. Medicare's clinician data says John K. Appelbaum 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 John K. Appelbaum?
- (314) 996-5000, as listed in official Medicare / NPI Registry data.
- What is John K. Appelbaum's NPI number?
- 1154409399. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where John K. Appelbaum is enrolled with Medicare (CMS data updated 2026-10-02).
- 3015 N Ballas RdSaint Louis, MO 63131 (314) 996‑5000
Group practices
Medicare enrollment lists John K. Appelbaum as a member of this group (CMS data updated 2026-10-02).
- Missouri Baptist Medical Center124 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Washington University School Of Medicine |
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154409399 |
| 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
- 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