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

Gastroenterology

Mark Pankonin, MD

Works at hospitals in Alton, IL · Springfield, MO · Albany, GA … · Illinois, Missouri, Georgia

Summary

Mark Pankonin, MD (Gastroenterology) is listed by Medicare at 4 hospitals in Alton, IL, Springfield, MO and Albany, GA and other places. NPI 1356509947. 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 Mark Pankonin, 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

GastroenterologyPrimary specialty
YesAccepts Medicare assignment
18Years since medical school (graduated 2008)
Wayne State University School Of MedicineMedical school
MaleGender (as listed)
Wellstar Medical Group LLCGroup practice (+3 more)

Quick answers

Which hospitals does Mark Pankonin work at?
Medicare's official clinician data lists Mark Pankonin at 4 hospitals: Alton Memorial Hospital, Cox Medical Centers, Phoebe Putney Memorial Hospital and Wellstar Paulding Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mark Pankonin see patients?
Medicare's clinician data lists 13 practice locations, including Saint Louis, MO, Americus, GA and Hiram, GA. Call before your visit to confirm the address.
What is Mark Pankonin's specialty?
Medicare lists Gastroenterology as the primary specialty.
Does Mark Pankonin accept Medicare assignment?
Yes. Medicare's clinician data says Mark Pankonin 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 Mark Pankonin?
(314) 653-5643, as listed in official Medicare / NPI Registry data.
What is Mark Pankonin's NPI number?
1356509947. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mark Pankonin works

Medicare's Facility Affiliation Data lists Mark Pankonin 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 Mark Pankonin is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 13; the Medicare profile lists all.

Group practices

Medicare enrollment lists Mark Pankonin as a member of these groups (CMS data updated 2026-10-02).

  • Wellstar Medical Group LLC3,093 clinicians in the group
  • Fairview Heights Medical Group SC444 clinicians in the group
  • Phoebe Physician Group Inc430 clinicians in the group
  • Lester E Cox Medical Centers345 clinicians in the group

Specialties

Find other Gastroenterology doctors in Missouri →

Other gastroenterologists in Saint Louis

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

All gastroenterologists in Saint Louis →

Clinician information

CredentialMD
Medical schoolWayne State University School Of Medicine
Graduation year2008
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1356509947
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