Quick answers
- Where does John L. Flowers see patients?
- Medicare's clinician data lists 2 practice locations, including Baltimore, MD. Call before your visit to confirm the address.
- What is John L. Flowers's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does John L. Flowers accept Medicare assignment?
- Yes. Medicare's clinician data says John L. Flowers 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 L. Flowers?
- (443) 849-3779, as listed in official Medicare / NPI Registry data.
- What is John L. Flowers's NPI number?
- 1891735965. 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 L. Flowers is enrolled with Medicare (CMS data updated 2026-10-02).
- 6535 N Charles St, 125 Surgery Bariatric GbmcBaltimore, MD 21204 (443) 849‑3779
- 6569 N Charles St, 307 Gyn Fertility GbmcBaltimore, MD 21204 (443) 849‑8707
Group practices
Medicare enrollment lists John L. Flowers as a member of this group (CMS data updated 2026-10-02).
- Greater Baltimore Medical Center354 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Baltimore
Clinicians with the same Medicare primary specialty in Baltimore, MD — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Hahnemann University College Of Medicine |
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1891735965 |
| 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