Find a Provider

2301. 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

2302. Michelle O'Connor, PA-C
Integrated Health
Practice Location
2 Rixey Ct
Fredericksburg, VA 22405-2161

Phone: (571) 231-2556

2303. 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

2304. 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

2305. Jorge Obando, MD
Member

2306. 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

2307. 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

2308. 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

2309. 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 


2310. 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

2311. 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
Pittsburgh, PA


2312. Jenna Ogor-Lopez, RD CD
Integrated Health
Phone: (414) 219-4243

2313. 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

2314. Mary Oh, MD
Member
Surgeries Performed
• Laparoscopic Sleeve Gastrectomy 
• Roux-en-Y Gastric Bypass 

Practice Location
Loma Linda, CA


2315. Peter Ojo, MD
Practicing Surgeon
Surgeries Performed
• Follows Other Surgeons' Patients 
• Gastric Banding 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 
• Revision/Conversion of Prior Procedure 
• Roux-en-Y Gastric Bypass 

Practice Location
30 Harrison St Ste 320
Johnson City, NY 13790-2162

Phone: (607) 763-8205

2316. Kingsley Okai, MD
Practicing Surgeon
Surgeries Performed
• Laparoscopic BPD w/ Duodenal Switch 
• Laparoscopic Biliopancreatic Diversion 
• Laparoscopic Sleeve Gastrectomy 
• Revision/Conversion of Prior Procedure 
• Roux-en-Y Gastric Bypass 
• Single Anastomosis Duodeno-ileostomy 
• Laparoscopic Roux-en-Y Gastric Bypass 

Practice Location
7910 W Jefferson Blvd Ste 112
Suite 112
Fort Wayne, IN 46804-4159

Phone: (260) 969-7121

2317. Allan Okrainec, MD MHPE FRCSC FACS
Practicing Surgeon
Surgeries Performed
• Laparoscopic Sleeve Gastrectomy 
• Roux-en-Y Gastric Bypass 
• Single Anastomosis Duodeno-ileostomy 

Practice Location
217 Lake Shore Dr 399 Bathurst St. 8MP-325
Toronto, ON M8V 2A5

Phone: (416) 603-5224

2318. Jarrod Olafson, MD
Member
Surgeries Performed
• Laparoscopic Sleeve Gastrectomy 
• Roux-en-Y Gastric Bypass 


2319. John Oldham, MD
Practicing Surgeon
Surgeries Performed
• Bariatric Endoscopy Procedures 
• Follows Other Surgeons' Patients 
• Gastric Banding 
• Laparoscopic BPD w/ Duodenal Switch 
• Laparoscopic Biliopancreatic Diversion 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 
• One Anastomosis Gastric Bypass 
• Other Gastric Bypass 
• Other Gastric Restriction 
• Revision/Conversion of Prior Procedure 
• Roux-en-Y Gastric Bypass 
• Single Anastomosis Duodeno-ileostomy 

Practice Location
950 Breckenridge Ln Ste 10
Louisville, KY 40207-5931

Phone: (502) 894-9499

2320. Alejandro Oliu, MD
Practicing Surgeon
Surgeries Performed
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 
• Revision/Conversion of Prior Procedure 
• Roux-en-Y Gastric Bypass 

Practice Location
1400 Madison Ave
Suite 100AA
Mankato, MN 56001-5473