Find a Surgeon

2021. Luke Umana MD D-ABOM
Regular Member
Surgeries Performed
• BPD w/ Duodenal Switch 
• Roux-en-Y Gastric Bypass 
• Laparoscopic Biliopancreatic Diversion 
• Laparoscopic BPD w/ Duodenal Switch 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Pediatric (Patients Under 18) 
• Revision/Conversion of Prior Procedure 
• Single Anastomosis Duodeno-ileostomy 
• Laparoscopic Sleeve Gastrectomy 

Locations
Springfield, IL USA


2022. Ajay Upadhyay MD FACS FRCS FASMBS
Regular Member
Surgeries Performed
• Bariatric Endoscopy Procedures 
• BPD w/ Duodenal Switch 
• Follows Other Surgeons' Patients 
• Laparoscopic Biliopancreatic Diversion 
• Laparoscopic Roux-en-Y Gastric Bypass 
• One Anastomosis Gastric Bypass 
• Other Gastric Bypass 
• Other Gastric Restriction 
• Revision/Conversion of Prior Procedure 
• Single Anastomosis Duodeno-ileostomy 
• Laparoscopic Sleeve Gastrectomy 

Locations
Oakland, CA USA


2023. Stefanie Vaimakis MD FACS
Regular Member
Surgeries Performed
• Follows Other Surgeons' Patients 
• Gastric Banding 
• Roux-en-Y Gastric Bypass 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Other Gastric Restriction 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Oradell, NJ USA


2024. Alvaro Valencia MD
International Member
Surgeries Performed
• Follows Other Surgeons' Patients 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Pediatric (Patients Under 18) 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Bogota, COL


2025. Eric Valladares MD
Regular Member
Surgeries Performed
• Bariatric Endoscopy Procedures 
• Follows Other Surgeons' Patients 
• Gastric Banding 
• Roux-en-Y Gastric Bypass 
• Intragastric Balloon 
• Laparoscopic BPD w/ Duodenal Switch 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Miami, FL USA
Miami, FL USA


2026. Jose Vicente Valls MD PhD
International Member
Surgeries Performed
• Follows Other Surgeons' Patients 
• Roux-en-Y Gastric Bypass 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Single Anastomosis Duodeno-ileostomy 
• Laparoscopic Sleeve Gastrectomy 

Locations
Valencia, ESP


2027. Andrew Van Osdol MD
Regular Member
Surgeries Performed
• Bariatric Endoscopy Procedures 
• Follows Other Surgeons' Patients 
• Laparoscopic Biliopancreatic Diversion 
• Laparoscopic BPD w/ Duodenal Switch 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Single Anastomosis Duodeno-ileostomy 
• Laparoscopic Sleeve Gastrectomy 

Locations
Spearfish, SD USA


2028. Kent Van Sickle MD
Regular Member
Surgeries Performed
• Follows Other Surgeons' Patients 
• Roux-en-Y Gastric Bypass 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Other Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Single Anastomosis Duodeno-ileostomy 
• Laparoscopic Sleeve Gastrectomy 

Locations
San Antonio, TX USA


2029. Brandon Vanderwell MD
Regular Member
Surgeries Performed
• Bariatric Endoscopy Procedures 
• Roux-en-Y Gastric Bypass 
• Other Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Shoreline, WA USA


2030. Oliver Varban MD FACS
Regular Member
Surgeries Performed
• Roux-en-Y Gastric Bypass 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Detroit, MI USA


2031. Ronnal Vargas MD MSC
International Member
Surgeries Performed
• Bariatric Endoscopy Procedures 
• Follows Other Surgeons' Patients 
• Roux-en-Y Gastric Bypass 
• Intragastric Balloon 
• Laparoscopic Sleeve Gastrectomy 


2032. Brandon Varnell MD
Regular Member
Surgeries Performed
• Bariatric Endoscopy Procedures 
• Follows Other Surgeons' Patients 
• Gastric Banding 
• Roux-en-Y Gastric Bypass 
• Laparoscopic BPD w/ Duodenal Switch 
• Laparoscopic Roux-en-Y Gastric Bypass 
• One Anastomosis Gastric Bypass 
• Other Gastric Bypass 
• Other Gastric Restriction 
• Revision/Conversion of Prior Procedure 
• Single Anastomosis Duodeno-ileostomy 
• Laparoscopic Sleeve Gastrectomy 

Locations
Tulsa, OK USA


2033. Vikram Vattipally MD MBA MRCS FACS
Regular Member
Surgeries Performed
• Follows Other Surgeons' Patients 
• Roux-en-Y Gastric Bypass 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Other Gastric Restriction 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 


2034. Danny Vaughn MD FACS
Regular Member
Surgeries Performed
• Bariatric Endoscopy Procedures 
• Follows Other Surgeons' Patients 
• Intragastric Balloon 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Other Gastric Restriction 
• Laparoscopic Sleeve Gastrectomy 

Locations
Macon, GA USA


2035. Benjamin Veenstra MD FACS FASMBS
Regular Member
Surgeries Performed
• Follows Other Surgeons' Patients 
• Roux-en-Y Gastric Bypass 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Other Gastric Restriction 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Jacksonville, FL USA


2036. Marlen Vega MD
International Member
Surgeries Performed
• Follows Other Surgeons' Patients 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Miami, FL USA


2037. Eric Velazquez MD MBA FACS FASMBS
Regular Member
Surgeries Performed
• Bariatric Endoscopy Procedures 
• BPD w/ Duodenal Switch 
• Follows Other Surgeons' Patients 
• Roux-en-Y Gastric Bypass 
• Intragastric Balloon 
• Laparoscopic Biliopancreatic Diversion 
• Laparoscopic BPD w/ Duodenal Switch 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Other Gastric Bypass 
• Pediatric (Patients Under 18) 
• Revision/Conversion of Prior Procedure 
• Single Anastomosis Duodeno-ileostomy 
• Laparoscopic Sleeve Gastrectomy 

Locations
Gainesville, GA USA
Suwanee, GA USA


2038. Jose Velez MD
International Member
Surgeries Performed
• BPD w/ Duodenal Switch 
• Follows Other Surgeons' Patients 
• Roux-en-Y Gastric Bypass 
• Intragastric Balloon 
• Laparoscopic BPD w/ Duodenal Switch 
• Laparoscopic Roux-en-Y Gastric Bypass 
• One Anastomosis Gastric Bypass 
• Pediatric (Patients Under 18) 
• Revision/Conversion of Prior Procedure 
• Single Anastomosis Duodeno-ileostomy 
• Laparoscopic Sleeve Gastrectomy 

Locations
Cali, COL
Cali, COL


2039. Roshni Venugopal MD
Regular Member
Surgeries Performed
• Bariatric Endoscopy Procedures 
• Follows Other Surgeons' Patients 
• Roux-en-Y Gastric Bypass 
• Intragastric Balloon 
• Laparoscopic Roux-en-Y Gastric Bypass 
• One Anastomosis Gastric Bypass 
• Other Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Nashville, TN USA


2040. Maria Ver MD FACS
Regular Member
Surgeries Performed
• Follows Other Surgeons' Patients 
• Roux-en-Y Gastric Bypass 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Aiea, HI USA