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Gastroenterology

David H. Van Thiel, MD

Sees patients in Berwyn, IL · Illinois

Summary

David H. Van Thiel, MD (Gastroenterology) is enrolled with Medicare at 1 practice location in Berwyn, IL. NPI 1447367479. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(312) 573‑1633 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about David H. Van Thiel, 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

1Practice location
GastroenterologyPrimary specialty
YesAccepts Medicare assignment
59Years since medical school (graduated 1967)
University Of California, Geffen School Of MedicineMedical school
MaleGender (as listed)

Quick answers

Where does David H. Van Thiel see patients?
Medicare's clinician data lists 1 practice location in Berwyn, IL. Call before your visit to confirm the address.
What is David H. Van Thiel's specialty?
Medicare lists Gastroenterology as the primary specialty, and also Internal Medicine.
Does David H. Van Thiel accept Medicare assignment?
Yes. Medicare's clinician data says David H. Van Thiel 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 David H. Van Thiel?
(312) 573-1633, as listed in official Medicare / NPI Registry data.
What is David H. Van Thiel's NPI number?
1447367479. 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 David H. Van Thiel is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other Gastroenterology doctors in Illinois →

Other gastroenterologists in Illinois

Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.

All gastroenterologists in Illinois →

Clinician information

CredentialMD
Medical schoolUniversity Of California, Geffen School Of Medicine
Graduation year1967
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1447367479
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians