Quick answers
- Where does Melissa Gregory see patients?
- Medicare's clinician data lists 2 practice locations, including Saint Louis, MO and Detroit, MI. Call before your visit to confirm the address.
- What is Melissa Gregory's specialty?
- Medicare lists Nephrology as the primary specialty.
- Does Melissa Gregory accept Medicare assignment?
- Yes. Medicare's clinician data says Melissa Gregory 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 Melissa Gregory?
- (314) 577-5641, as listed in official Medicare / NPI Registry data.
- What is Melissa Gregory's NPI number?
- 1386604460. 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 Melissa Gregory is enrolled with Medicare (CMS data updated 2026-10-02).
- 1465 S Grand BlvdSaint Louis, MO 63104 (314) 577‑5641
- 3901 Beaubien StDetroit, MI 48201 (313) 745‑5870
Group practices
Medicare enrollment lists Melissa Gregory as a member of these groups (CMS data updated 2026-10-02).
- SSM Health Care Group940 clinicians in the group
- University Pediatricians121 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Saint Louis
Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1988 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1386604460 |
| 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