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Nephrology

Alejandro C. Alvarez, MD

Works at hospitals in Saint Louis, MO · Fenton, MO · Missouri

Summary

Alejandro C. Alvarez, MD (Nephrology) is listed by Medicare at 2 hospitals in Saint Louis, MO and Fenton, MO. NPI 1508846304. 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 Alejandro C. Alvarez, 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

NephrologyPrimary specialty
YesAccepts Medicare assignment
32Years since medical school (graduated 1994)
MaleGender (as listed)
Nephrology and Hypertension Specialists LLCGroup practice (+1 more)

Quick answers

Which hospitals does Alejandro C. Alvarez work at?
Medicare's official clinician data lists Alejandro C. Alvarez at 2 hospitals: Missouri Baptist Medical Center and SSM St Clare Health Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Alejandro C. Alvarez see patients?
Medicare's clinician data lists 3 practice locations, including Saint Louis, MO and Florissant, MO. Call before your visit to confirm the address.
What is Alejandro C. Alvarez's specialty?
Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
Does Alejandro C. Alvarez accept Medicare assignment?
Yes. Medicare's clinician data says Alejandro C. Alvarez 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 Alejandro C. Alvarez?
(314) 842-9669, as listed in official Medicare / NPI Registry data.
What is Alejandro C. Alvarez's NPI number?
1508846304. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Alejandro C. Alvarez works

Medicare's Facility Affiliation Data lists Alejandro C. Alvarez 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 Alejandro C. Alvarez is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Alejandro C. Alvarez as a member of these groups (CMS data updated 2026-10-02).

  • Nephrology and Hypertension Specialists LLC8 clinicians in the group
  • Fresenius Vascular Care St Louis LLC3 clinicians in the group

Specialties

Find other Nephrology doctors in Missouri →

Other nephrologists in Saint Louis

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

All nephrologists in Saint Louis →

Clinician information

CredentialMD
Graduation year1994
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1508846304
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