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1481. Timothy Nowack, MD
Practicing Surgeon

1482. Michael Nowak, MD FACS
Practicing Surgeon

1483. Younan Nowzaradan, MD SURGEON
Practicing Surgeon

1484. Martin Nuňez de la Cruz, MD
Member

1485. Rumbidzayi Nzara Mukurazhizha, MD
Practicing Surgeon

1486. Ann O'Connor, MD MBA
Practicing Surgeon
Surgeries Performed
• Follows Other Surgeons' Patients 
• Laparoscopic Sleeve Gastrectomy 
• Pediatric (Patients Under 18) 

Practice Location
315 N San Saba Ste 1135
San Antonio, TX 78207-3255

Phone: (210) 704-0090

1487. J. Patrick O'Leary, MD
Practicing Surgeon
Practice Location
College of Medicine
11200 SW 8th Street, AHC 4-262
Miami, FL 33199-0001

Phone: (305) 348-0607

1488. Sean O'Neill, MD PhD
Practicing Surgeon
Surgeries Performed
• Laparoscopic Sleeve Gastrectomy 
• Revision/Conversion of Prior Procedure 
• Roux-en-Y Gastric Bypass 

Practice Location
1500 E Medical Center Dr
Taubman Center 2924B
Ann Arbor, MI 48109-5000

Phone: (734) 998-0864

1489. Robert O'Rourke, MD
Practicing Surgeon
Surgeries Performed
• Gastric Banding 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 
• Roux-en-Y Gastric Bypass 

Practice Location
1500 E Medical Center Dr
TC2920
Ann Arbor, MI 48109-5000

Phone: (734) 936-5823

1490. Ruary O’Connell, MD
Practicing Surgeon

1491. Diana Obando, MD
Member
Practice Location
Jr ordonez 124, San Borja
Lima, 57234


1492. Jorge Obando, MD
Member

1493. Ayman Obeid, MD FACS
Member
Surgeries Performed
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 
• Pediatric (Patients Under 18) 
• Revision/Conversion of Prior Procedure 
• Roux-en-Y Gastric Bypass 

Practice Location
Bir Hassan
Beirut, 1109

Phone: 01378049

1494. Nabeel Obeid, MD FACS
Practicing Surgeon
Surgeries Performed
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 
• Revision/Conversion of Prior Procedure 

Practice Location
14650 E. Old US 12
Suite 201, Room 2119
Chelsea, MI 48118

Phone: (734) 936-5738

1495. Kosisochi Obinwanne, MD
Practicing Surgeon
Surgeries Performed
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 

Practice Location
2900 Hannah Blvd Ste 216
Suite 216
East Lansing, MI 48823-5382

Phone: (517) 364-8100

1496. Vladan Obradovic, MD FACS
Practicing Surgeon
Surgeries Performed
• BPD w/ Duodenal Switch 
• Follows Other Surgeons' Patients 
• Laparoscopic BPD w/ Duodenal Switch 
• Laparoscopic Biliopancreatic Diversion 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 
• Revision/Conversion of Prior Procedure 
• Roux-en-Y Gastric Bypass 
• Single Anastomosis Duodeno-ileostomy 

Practice Location
100 N Academy Ave
Danville, PA 17822-9800


1497. Francisco Obregon Colombani, MD
Member
Surgeries Performed
• BPD w/ Duodenal Switch 
• Laparoscopic BPD w/ Duodenal Switch 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 
• One Anastomosis Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Roux-en-Y Gastric Bypass 
• Single Anastomosis Duodeno-ileostomy 
• Other Gastric Bypass 

Practice Location
311 Camden St
San Antonio, TX 78215


1498. Stephanie Oceguera, MD FACS
Practicing Surgeon
Surgeries Performed
• Follows Other Surgeons' Patients 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 
• Revision/Conversion of Prior Procedure 
• Roux-en-Y Gastric Bypass 

Practice Location
1 Atwell Rd
Cooperstown, NY 13326-1301

Phone: (607) 547-3373

1499. Tyler Oe, MD
Member
Surgeries Performed
• Bariatric Endoscopy Procedures 
• Laparoscopic BPD w/ Duodenal Switch 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 
• Single Anastomosis Duodeno-ileostomy 

Practice Location
5754 Howe St Apt 5
Apartment 5
Pittsburgh, PA 15232-2620


1500. Jin Sol Oh, MD FACS
Practicing Surgeon
Surgeries Performed
• Follows Other Surgeons' Patients 
• Laparoscopic BPD w/ Duodenal Switch 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 
• Revision/Conversion of Prior Procedure 
• Roux-en-Y Gastric Bypass 
• Single Anastomosis Duodeno-ileostomy 

Practice Location
880 W Central Rd Ste 5000
Suite 5000
Arlington Heights, IL 60005-2384

Phone: (847) 618-3800