Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Neil Backer, MD

Works at hospitals in Saint Louis, MO · Missouri

Summary

Neil Backer, MD (Internal Medicine) is listed by Medicare at 1 hospital in Saint Louis, MO. NPI 1962933911. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Neil Backer, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
9Years since medical school (graduated 2017)
Saint Louis University School Of MedicineMedical school
MaleGender (as listed)
St Anthonys Physician Organization Hospitalist Services LCGroup practice

Quick answers

Which hospitals does Neil Backer work at?
Medicare's official clinician data lists Neil Backer at 1 hospital: Mercy Hospital South. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Neil Backer see patients?
Medicare's clinician data lists 1 practice location in Saint Louis, MO. Call before your visit to confirm the address.
What is Neil Backer's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Neil Backer accept Medicare assignment?
Yes. Medicare's clinician data says Neil Backer 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 Neil Backer?
(314) 525-1328, as listed in official Medicare / NPI Registry data.
What is Neil Backer's NPI number?
1962933911. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Neil Backer works

Medicare's Facility Affiliation Data lists Neil Backer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Neil Backer is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Neil Backer as a member of this group (CMS data updated 2026-10-02).

  • St Anthonys Physician Organization Hospitalist Services LC144 clinicians in the group

Specialties

Find other Internal Medicine doctors in Missouri →

Other internal medicine doctors in Saint Louis

Clinicians with the same Medicare primary specialty in Saint Louis, MO — not a recommendation.

All internal medicine doctors in Saint Louis →

Clinician information

CredentialMD
Medical schoolSaint Louis University School Of Medicine
Graduation year2017
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1962933911
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians