2023 Jan Feb Mar Apr May June July Aug Sept Oct Nov Dec 2025 2024

Call Schedule, 9/1 to 9/30, 2024   (as of 1:44am Dec 22)

1 September2 Labor day3 Tu4 We5 Th6 Fr7 Sa
MSBI GU ALL FIRST CALLS 6AM-6PMRyan BlakeRyan BlakeAli ZahalkaAli ZahalkaAli ZahalkaAli ZahalkaPatrick Ho
MSBI PRIMARY 6PM-6AMRyan BlakeRyan BlakeRyan BlakeRyan BlakeEzra ShoenPatrick HoPatrick Ho
Urology Attending Herik AcostaRollin SayRollin SayRollin SayRollin Say 
Weekend CallHerik Acosta    Rollin SayRollin Say
8 Su9 Mo10 Tu11 We12 Th13 Fr14 Sa
MSBI GU ALL FIRST CALLS 6AM-6PMPatrick HoAli ZahalkaAli ZahalkaAli ZahalkaAli ZahalkaAli ZahalkaAli Zahalka
MSBI PRIMARY 6PM-6AMPatrick HoCharles NguyenCharles NguyenJuan Serna Olamide OmideleOlamide Omidele
Urology Attending Rollin SayRajveer PurohitRajveer PurohitRajveer PurohitRajveer Purohit 
Weekend CallRollin Say    Rajveer PurohitRajveer Purohit
15 Su16 Mo17 Tu18 We19 Th20 Fr21 Sa
MSBI GU ALL FIRST CALLS 6AM-6PMAli ZahalkaAli ZahalkaAli ZahalkaAli ZahalkaAli ZahalkaAli ZahalkaAli Zahalka
MSBI PRIMARY 6PM-6AM Juan SernaHallie WurstRyan BlakeHallie WurstAli ZahalkaAli Zahalka
Urology Attending Rajveer PurohitBarbara Chuback Barbara Chuback Barbara Chuback Barbara Chuback  
Weekend CallRajveer Purohit    Barbara Chuback Barbara Chuback
22 Su23 Mo24 Tu25 We26 Th27 Fr28 Sa
MSBI GU ALL FIRST CALLS 6AM-6PMAli ZahalkaAli Zahalka     
MSBI PRIMARY 6PM-6AMAli ZahalkaJuan SernaRyan BlakeEzra ShoenEzra ShoenRyan BlakeRyan Blake
Urology Attending Barbara Chuback Aaron GrotasAaron GrotasAaron GrotasSovrin Shah 
Weekend CallBarbara Chuback     Sovrin ShahSovrin Shah
29 Su30 Mo1 October2 We3 Th4 Fr5 Sa
MSBI GU ALL FIRST CALLS 6AM-6PMAli ZahalkaAli ZahalkaAli ZahalkaAli ZahalkaAli ZahalkaAli ZahalkaAli Zahalka
MSBI PRIMARY 6PM-6AM Ezra ShoenEzra ShoenOlamide OmideleHallie WurstHallie Wurst 
Urology Attending Aaron GrotasSovrin ShahSovrin ShahSovrin ShahAaron Grotas 
Weekend CallSovrin Shah    Aaron GrotasAaron Grotas

Contact nsealy@chpnet.org if you have questions.   Schedule last updated Dec 19 11:31 2024.   2024 (22-24) sealyn01  Jun 30 23

Sovrin Shah917-224-1074    
Aaron Grotas917-648-2319    
Rollin Say609-203-6765    
Rajveer Purohit201-388-3888    
Barbara Chuback 646-939-9833    
Ali Zahalka304-282-0893    
Ryan Blake(248) 534-3791 1462098161    
Juan Serna1462098143    
Olamide Omidele(281)236-9603 1462093998    
Ezra Shoen(732) 425-5318 1462093073    
Patrick Ho(949) 395-1622 1462093070    
Hallie Wurst(253) 651-5315 1462051531    
Charles Nguyen(510) 846-1486    
Herik Acosta248-818-5154    

MSBI Escalation Pathway:
1 - Chief Resident (see below)
2 - Medical Director Aaron Grotas: 917-648-2319
3 - MSBI Hospital Director of Nursing: 212-420-3910
4 - MSBI Hospital Administrator on Duty: 212-420-3900