Mark Allendorph, MD

Gastroenterology

21+ years in practiceNPI: 1922094002Licensed in IL

About

Bio coming soon.

Are you Mark Allendorph, MD?

Claim your profile

Verify your identity, update your credentials, and take ownership of your listing on PBCMMG.

Claim Profile

Credentials & Recognition

Specialties

Gastroenterology

NPI sub-specialties

Internal Medicine, Gastroenterology207RG0100X

Practice Signals

Editorial signals beyond credentials. Patient transparency over opacity. See methodology.

Mid-Level (PA/NP) Use

Doctor-led visits

Years in Practice

21+ years

Estimated from NPI enumeration date

Other Gastroenterology Doctors near Illinois

View all →

Dr. Jimmy Morrison, MD

Illinois, IL · Board cert · 20+ yrs

Dr. Philip Adjei, MD

Illinois, IL · 21+ yrs

Dr. Zahid Afzal, MD

Illinois, IL · 21+ yrs

Dr. Amir Ahmed, MD

Illinois, IL · 21+ yrs

Dr. Nazneen Ahmed, MD

Illinois, IL · 21+ yrs

Dr. Shakeel Ahmed, MD

Illinois, IL · 21+ yrs

Frequently Asked Questions about Dr. Mark Allendorph, MD

Where does Dr. Mark Allendorph, MD practice?+
Dr. Mark Allendorph, MD practices in Illinois, IL. 2 MEMORIAL DR SUITE 205 ALTON, IL 620026723.
What is Dr. Mark Allendorph, MD's phone number?+
Dr. Mark Allendorph, MD's practice phone is 618-465-5849. Office contact information is verified on the PBCMMG profile.
What does Dr. Mark Allendorph, MD specialize in?+
Dr. Mark Allendorph, MD's primary specialty is Gastroenterology.
Is Dr. Mark Allendorph, MD board certified?+
Board certification status for Dr. Mark Allendorph, MD has not been verified in the data sources PBCMMG uses (ABMS, state medical boards). The PBCMMG profile shows their current credential set.
How long has Dr. Mark Allendorph, MD been practicing?+
Dr. Mark Allendorph, MD has been in active practice for 21+ years, based on NPI enumeration and state licensing records.
What is Dr. Mark Allendorph, MD's NPI number?+
Dr. Mark Allendorph, MD's National Provider Identifier (NPI) is 1922094002, registered in the federal NPPES registry.

Profile maintained by Palm Beach County Medical Media Group, Inc. | Data verified from public registries (NPPES, ABMS, state medical boards). Methodology · Editorial Standards

See an error? info@pbcmmg.com

Are you Mark Allendorph, MD?

Claim & complete your profile →

Verify identity, upload proof, and update credentials. Approval typically 1-2 business days.