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1521. Timothy Nowack MD
Regular Member
Surgeries Performed
• Bariatric Endoscopy Procedures 
• Roux-en-Y Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Miami, FL USA


1522. Michael Nowak MD FACS
Regular Member
Surgeries Performed
• None Performed 


1523. Younan Nowzaradan MD SURGEON
Regular Member
Surgeries Performed
• BPD w/ Duodenal Switch 
• Follows Other Surgeons' Patients 
• Roux-en-Y Gastric Bypass 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Other Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Houston, TX USA


1524. Yangel Nunez MD
International Member
Surgeries Performed
• Bariatric Endoscopy Procedures 
• BPD w/ Duodenal Switch 
• Follows Other Surgeons' Patients 
• Intragastric Balloon 
• Laparoscopic Roux-en-Y Gastric Bypass 
• One Anastomosis Gastric Bypass 
• Other Gastric Restriction 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Miami, FL DOM


1525. Michael Nusbaum MD
Regular Member
Surgeries Performed
• Bariatric Endoscopy Procedures 
• BPD w/ Duodenal Switch 
• Follows Other Surgeons' Patients 
• Gastric Banding 
• Roux-en-Y Gastric Bypass 
• Intragastric Balloon 
• Laparoscopic BPD w/ Duodenal Switch 
• Laparoscopic Roux-en-Y Gastric Bypass 
• One Anastomosis Gastric Bypass 
• Other Gastric Bypass 
• Other Gastric Restriction 
• Pediatric (Patients Under 18) 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Cedar Knolls, NJ USA
Clifton, NJ USA


1526. Zaher Nuwayhid FACS DABOM MBA FASMBS
Regular Member
Surgeries Performed
• Bariatric Endoscopy Procedures 
• Follows Other Surgeons' Patients 
• Roux-en-Y Gastric Bypass 
• Intragastric Balloon 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Other Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Conway, SC USA


1527. Rumbidzayi Nzara Mukurazhizha MD
Regular Member
Surgeries Performed
• Follows Other Surgeons' Patients 
• Roux-en-Y Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Woodbridge, MD USA


1528. J. Patrick O'Leary MD
Regular Member
Locations
Miami, FL USA


1529. William O'Malley MD
Regular Member
Surgeries Performed
• BPD w/ Duodenal Switch 
• Follows Other Surgeons' Patients 
• Roux-en-Y Gastric Bypass 
• Laparoscopic BPD w/ Duodenal Switch 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Rochester, NY USA


1530. Sean O'Neill MD PhD FASMBS
Regular Member
Surgeries Performed
• Roux-en-Y Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Ann Arbor, MI USA


1531. Robert O'Rourke MD
Regular Member
Surgeries Performed
• Gastric Banding 
• Roux-en-Y Gastric Bypass 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 

Locations
Ann Arbor, MI USA


1532. Ruary O’Connell MD
Regular Member
Surgeries Performed
• Laparoscopic Roux-en-Y Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
New Orleans, LA USA


1533. Ann O'Connor MD MBA
Regular Member
Surgeries Performed
• Follows Other Surgeons' Patients 
• Pediatric (Patients Under 18) 
• Laparoscopic Sleeve Gastrectomy 

Locations
San Antonio, TX USA


1534. Ayman Obeid MD FACS
International Member
Surgeries Performed
• Roux-en-Y Gastric Bypass 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Pediatric (Patients Under 18) 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Beirut, LBN
Dubai, ARE


1535. Nabeel Obeid MD FACS FASMBS
Regular Member
Surgeries Performed
• Laparoscopic Roux-en-Y Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Chelsea, MI USA


1536. Kosisochi Obinwanne MD FASMBS
Regular Member
Surgeries Performed
• Laparoscopic Roux-en-Y Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Single Anastomosis Duodeno-ileostomy 
• Laparoscopic Sleeve Gastrectomy 

Locations
East Lansing, MI USA


1537. Vladan Obradovic MD FACS
Regular Member
Surgeries Performed
• BPD w/ Duodenal Switch 
• Follows Other Surgeons' Patients 
• Roux-en-Y Gastric Bypass 
• 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
Danville, PA USA


1538. Francisco Obregon Colombani MD
Affiliate Surgeon Member
Surgeries Performed
• BPD w/ Duodenal Switch 
• Roux-en-Y Gastric Bypass 
• Laparoscopic BPD w/ Duodenal Switch 
• Laparoscopic Roux-en-Y Gastric Bypass 
• One Anastomosis Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Single Anastomosis Duodeno-ileostomy 
• Laparoscopic Sleeve Gastrectomy 

Locations
McAllen, TX USA
Edinburg, VEN


1539. Jin Sol Oh MD FACS
Regular Member
Surgeries Performed
• Follows Other Surgeons' Patients 
• Roux-en-Y Gastric Bypass 
• Laparoscopic BPD w/ Duodenal Switch 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Single Anastomosis Duodeno-ileostomy 
• Laparoscopic Sleeve Gastrectomy 

Locations
Arlington Heights, IL USA


1540. Peter Ojo MD
Regular Member
Surgeries Performed
• Follows Other Surgeons' Patients 
• Gastric Banding 
• Roux-en-Y Gastric Bypass 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Laparoscopic Sleeve Gastrectomy 

Locations
Johnson City, NY USA