Quick answers
- Where does Alyssa McLellan see patients?
- Medicare's clinician data lists 1 practice location in Ferguson, MO. Call before your visit to confirm the address.
- What is Alyssa McLellan's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Alyssa McLellan accept Medicare assignment?
- Yes. Medicare's clinician data says Alyssa McLellan 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 Alyssa McLellan?
- (314) 738-2785, as listed in official Medicare / NPI Registry data.
- What is Alyssa McLellan's NPI number?
- 1326803511. 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 Alyssa McLellan is enrolled with Medicare (CMS data updated 2026-10-02).
- 3878 Pershall RdFerguson, MO 63135 (314) 738‑2785
Group practices
Medicare enrollment lists Alyssa McLellan as a member of this group (CMS data updated 2026-10-02).
- SSM Health Care St Louis167 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Missouri
Clinicians with the same Medicare primary specialty in Missouri — not a recommendation.
Clinician information
| Medical school | Saint Louis University School Of Medicine |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1326803511 |
| 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