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Anesthesiology in O Fallon, Missouri

Data updated monthly · Last refresh September 2026

15 Anesthesiology providers practice in O Fallon. Listings are drawn from federal public records and are not endorsements.

Anesthesiology providers in O Fallon

Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. Ajay Chalasani, MD
O Fallon, MO · $154 in drug and device payments (2025) · (800) 862-9980
Dr. Chakrapol Lattanand, MD
O Fallon, MO · No drug or device payments recorded (2025) · (800) 862-9980
Dr. Christopher Dimza, MD
O Fallon, MO · No drug or device payments recorded (2025) · (800) 862-9980
Dr. Dale Klein, MD
O Fallon, MO · No drug or device payments recorded (2025) · (636) 344-1000
Dr. David Friedman, MD
O Fallon, MO · No drug or device payments recorded (2025) · (636) 344-1170
Dr. Ehab Morcos, MD
O Fallon, MO · $47 in drug and device payments (2025) · (800) 862-9980
Dr. Isabella Riordan, MD
O Fallon, MO · $112 in drug and device payments (2025) · (800) 862-9980
Dr. Jessica Sanford, MD
O Fallon, MO · $23 in drug and device payments (2025) · (800) 862-9980
Dr. Jill Cooley, MD
O Fallon, MO · No drug or device payments recorded (2025) · (800) 862-9980
Dr. John Long, DO
O Fallon, MO · $103 in drug and device payments (2025) · (800) 862-9980
Dr. Joseph Miller, MD
O Fallon, MO · $19 in drug and device payments (2025) · (800) 862-9980
Dr. Peter Szatkowski, MD
O Fallon, MO · $837 in drug and device payments (2025) · (800) 862-9980
Dr. Steven Feit, MD
O Fallon, MO · No drug or device payments recorded (2025) · (636) 344-1170
Dr. Sunita Dharmavarapu, MD
O Fallon, MO · No drug or device payments recorded (2025) · (314) 286-1050
Dr. Victor Qi, MD
O Fallon, MO · No drug or device payments recorded (2025) · (800) 862-9980

Common questions

How many Anesthesiology providers are in O Fallon, Missouri?

There are 15 Anesthesiology providers with active NPI records practicing in O Fallon, according to federal NPPES data refreshed monthly.

Where does this data come from?

Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

All specialties in O Fallon Anesthesiology across Missouri

Try a city like Tucson, a zip like 85016, or a specialty like psychiatry. For a doctor by name, use the full search.
Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory.