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Infectious Disease

Andrej Spec, MD

Works at hospitals in Alton, IL · Saint Louis, MO · Illinois, Missouri

Summary

Andrej Spec, MD (Infectious Disease) is listed by Medicare at 3 hospitals in Alton, IL and Saint Louis, MO. NPI 1922326297. 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 Andrej Spec, 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

Infectious DiseasePrimary specialty
YesAccepts Medicare assignment
16Years since medical school (graduated 2010)
Chicago College Of Medicine And SurgeryMedical school
MaleGender (as listed)
Washington UniversityGroup practice

Quick answers

Which hospitals does Andrej Spec work at?
Medicare's official clinician data lists Andrej Spec at 3 hospitals: Alton Memorial Hospital, Barnes Jewish Hospital and Missouri Baptist Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Andrej Spec see patients?
Medicare's clinician data lists 2 practice locations, including Saint Louis, MO. Call before your visit to confirm the address.
What is Andrej Spec's specialty?
Medicare lists Infectious Disease as the primary specialty.
Does Andrej Spec accept Medicare assignment?
Yes. Medicare's clinician data says Andrej Spec 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 Andrej Spec?
(314) 747-3000, as listed in official Medicare / NPI Registry data.
What is Andrej Spec's NPI number?
1922326297. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Andrej Spec works

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

Group practices

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

  • Washington University3,029 clinicians in the group

Specialties

Find other Infectious Disease doctors in Missouri →

Other infectious disease doctors in Saint Louis

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

All infectious disease doctors in Saint Louis →

Clinician information

CredentialMD
Medical schoolChicago College Of Medicine And Surgery
Graduation year2010
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1922326297
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