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Mark Shell, DO

Gastroenterologist, Internist

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Specialties and Licenses

Licensed In
Texas
NPI Number
1265097000
In the National Registry
7 years (since 2019)

Name, specialties, licenses and address come from the NPPES national provider registry, updated weekly (this record last changed June 2025).

What Gastroenterologists Commonly Treat

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The information on this site is for general educational purposes only and is not medical advice, diagnosis, or treatment. Reading this site does not create a doctor–patient relationship. Always consult a qualified healthcare professional for personal guidance. If this is an emergency, call 911. Mentions of medications, devices, or procedures are informational and not endorsements. Full medical disclaimer.