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Emergency Medicine in Chester, Pennsylvania

Data updated monthly · Last refresh September 2026

26 Emergency Medicine providers practice in Chester, and 19% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.

Emergency Medicine providers in Chester

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. Ahmed Mamdouh Taha Mostafa, MD
Chester, PA · $17 in drug and device payments (2025) · (610) 447-6671
Dr. Ashley Barfield, D.O.
Chester, PA · No drug or device payments recorded (2025) · (610) 447-6671
Dr. Bradley Li
Chester, PA · No drug or device payments recorded (2025) · (410) 841-8543
Dr. Brenton Elliott
Chester, PA · No drug or device payments recorded (2025) · (610) 447-6671
Dr. Caroline Shepherd, DO
Chester, PA · $23 in drug and device payments (2025) · (610) 447-2000
Dr. Conor O'meara, MD
Chester, PA · $14 in drug and device payments (2025) · (610) 447-6671
Dr. Conrad Irons
Chester, PA · No drug or device payments recorded (2025) · (610) 447-6671
Dr. Craig Schaaf, MD
Chester, PA · No drug or device payments recorded (2025) · (610) 447-6671
Dr. Deanna Hojati, MD
Chester, PA · No drug or device payments recorded (2025) · (610) 447-6671
Dr. Denis Ostick
Chester, PA · No drug or device payments recorded (2025) · (610) 447-6671
Dr. Dhruv Patel, DO
Chester, PA · No drug or device payments recorded (2025) · (610) 447-6671
Dr. Elena Grill
Chester, PA · No drug or device payments recorded (2025) · (610) 447-6671
Dr. Gregory Frattaroli, M.D.
Chester, PA · No drug or device payments recorded (2025) · (610) 447-2000
Dr. Josephine Sinamano
Chester, PA · No drug or device payments recorded (2025) · (610) 447-2188
Dr. Joseph Zarraga, DO
Chester, PA · No drug or device payments recorded (2025) · (601) 447-2000
Dr. Karen Greenberg, DO
Chester, PA · No drug or device payments recorded (2025) · (610) 447-2000
Dr. Kevin Welch, D.O
Chester, PA · No drug or device payments recorded (2025) · (610) 447-2000
Dr. Leslie Crosby
Chester, PA · $23 in drug and device payments (2025) · (610) 447-6671
Dr. Matthew Destefano, D.O.
Chester, PA · No drug or device payments recorded (2025) · (610) 447-6671
Dr. Maxwell Cooper, M.D.
Chester, PA · $399 in drug and device payments (2025) · (610) 447-2000
Dr. Melissa Yu
Chester, PA · No drug or device payments recorded (2025) · (610) 447-6671
Dr. Michelle Bergal
Chester, PA · No drug or device payments recorded (2025) · (310) 500-0417
Dr. Stephen Depaul, DO
Chester, PA · No drug or device payments recorded (2025) · (610) 447-2000
Dr. Sumaya Mekkaoui, M.D.
Chester, PA · No drug or device payments recorded (2025) · (610) 447-6254
Dr. Syed Ali
Chester, PA · No drug or device payments recorded (2025) · (610) 447-6671
Dr. Victor Heresniak, DO
Chester, PA · No drug or device payments recorded (2025) · (215) 447-2000

Common questions

How many Emergency Medicine providers are in Chester, Pennsylvania?

There are 26 Emergency Medicine providers with active NPI records practicing in Chester, according to federal NPPES data refreshed monthly.

How many Emergency Medicine providers in Chester received drug or device company payments?

5 of 26 (19%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.

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 Chester Emergency Medicine across Pennsylvania

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.