Clinicians affiliated with Integritas Emergency Physician Services LLC

40 clinicians on file with this group · most practice in Marion-Herrin, IL · PAC ID 7113167446

Affiliation snapshotOctober 2, 2026CMS Doctors and Clinicians file, current snapshot (no end-of-2024 archive), applied to 2024
Activity year2024Medicare Part B claims, Original Medicare fee-for-service

32 clinicians affiliated with Integritas Emergency Physician Services LLC are in the 2024 Medicare Part B data, 32 of them physicians. Data years with affiliated clinicians: 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024.

Each clinician's exact figures are in their Physician Report, from their page; a specialty's figures in this market are in a Market Comparison. View sample report · Already purchased? Open your report

Affiliated clinicians by specialty, 2024

All specialties · Emergency Medicine (15) · Family Practice (11) · Internal Medicine (4) · Hospice and Palliative Care (1) · Hospitalist (1)

Specialty links go to the specialty in Marion-Herrin, IL.

Clinicians affiliated with Integritas Emergency Physician Services LLC, 2024

Alphabetical by last name; 32.

NameSpecialtyCity
James O Alexander, MDFamily PracticeMarion, IL
Sergio A Castillo, MDInternal MedicineKansas City, KS
Stephen E Chester, D.O.Emergency MedicinePalos Heights, IL
Randall R Feather, M.D.Family PracticeMemphis, TN
Christopher FenzelEmergency MedicineLouisville, KY
James F Gallant, MDEmergency MedicineDixon, IL
George A Geranios, MDInternal MedicineSpringfield, IL
Kimberly A Hall-Moore, MDEmergency MedicineNewnan, GA
Nicholas Hastings, D.O.Emergency MedicineAshland, OH
Jon R Hays, MDFamily PracticeMt Vernon, IL
Mohammed R Jendi, M.D.Family PracticeAllentown, PA
Martin C Johns, M.D.Emergency MedicineRandolph, VT
Jabbar JoshuaFamily PracticeJacksonville, AR
Glenn C Lafleur, M.D.Family PracticeBroussard, LA
Sue Miller, MDEmergency MedicineJackson, TN
Aslam A Mohammed, M.D.HospitalistHoopeston, IL
Clinton J Mohr, M.D.Internal MedicineMarion, IL
Kalvin L NathanielEmergency MedicineAtlanta, GA
Onyekachukwu Olisemeka, M.D.Family PracticeDetroit, MI
David Ong, M.D.Emergency MedicineWilmington, NC
Fernando Orellana, M.D.Emergency MedicineChicago, IL
Nichole Phillips, D.O., M.P.HHospice and Palliative CareLoveland, CO
Vanessa L Pitts, M.D.Emergency MedicinePontiac, IL
Patrick L Riley, MDFamily PracticeDuquoin, IL
Mark K Rotich, M.D.Internal MedicineMarion, IL
Melba M Taylor, M.D.Emergency MedicineCarbondale, IL
Zubin F Wala, MDFamily PracticeCarbondale, IL
Shereaf W Walid, M.D.Emergency MedicineDetroit, MI
Bruce A Wallace, DOEmergency MedicineFlint, MI
Shawn L White, MDFamily PracticeJacksboro, TX
Mai K Xiong, MDFamily PracticeMiddletown, CT
David C Zimmerman, DOEmergency MedicineSharon, CT

Practice locations

Listed practice locations in Illinois.

Source: CMS Doctors and Clinicians National Downloadable File, snapshot October 2, 2026.

Membership comes from the CMS Doctors and Clinicians file. CMS does not publish an end-of-year archive of it, so the current snapshot is applied to every data year. A clinician affiliated with several groups or hospitals appears on each of their pages. How group pages are built · Limitations