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1961. Brendan Marr, MD FACS
Practicing Surgeon
Surgeries Performed
• 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
10210 N 92nd St Ste 101
Suite 101
Scottsdale, AZ 85258-4523

Phone: (480) 882-7460

1962. Mey Marshall, RN
Integrated Health

1963. David Martin, MD Mb ChB FACS
Practicing Surgeon
Surgeries Performed
• Follows Other Surgeons' Patients 
• Gastric Banding 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 
• Other Gastric Bypass 
• Revision/Conversion of Prior Procedure 

Practice Location
401 E Highland Ave Ste 351
San Bernardino, CA 92404-3830

Phone: (909) 475-8611

1964. Matthew Martin, MD
Practicing Surgeon
Surgeries Performed
• BPD w/ Duodenal Switch 
• Follows Other Surgeons' Patients 
• Laparoscopic BPD w/ Duodenal Switch 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 
• Other Gastric Bypass 
• Pediatric (Patients Under 18) 
• Revision/Conversion of Prior Procedure 
• Roux-en-Y Gastric Bypass 
• Single Anastomosis Duodeno-ileostomy 

Practice Location
2051 Marengo St
Inpatient Tower (IPT), room C5L100
Los Angeles, CA 90033-1352

Phone: (323) 409-8604

1965. Thomas Martin, MD
Practicing Surgeon
Surgeries Performed
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 

Practice Location
4100 Lake Dr SE Ste B01
Suite B-01
Grand Rapids, MI 49546-8292

Phone: (616) 267-7832

1966. Sara Martin Del Campo, MD MS FACS DABOM
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
1124 Columbia St Ste 400
Ste 400
Seattle, WA 98104-2053

Phone: (206) 215-2090

1967. Eufrocino Martinez, MD
Practicing Surgeon
Surgeries Performed
• Bariatric Endoscopy Procedures 
• Follows Other Surgeons' Patients 
• Gastric Banding 
• Intragastric Balloon 
• 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
432 E 10th St
Long Beach, CA 90813

Phone: (562) 491-7935

1968. Sandy Martinez, MD
Practicing Surgeon
Surgeries Performed
• BPD w/ Duodenal Switch 
• Bariatric Endoscopy Procedures 
• Follows Other Surgeons' Patients 
• Intragastric Balloon 
• Laparoscopic BPD w/ Duodenal Switch 
• Laparoscopic Biliopancreatic Diversion 
• 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
Calle Diego Rivera 2311 Suite 8
Tijuana, BC MX

Phone: (619) 626-2112

1969. Melvin Martinez Marin, MBBS
Member

1970. Jayson Marwaha, MD MSc
Member
Surgeries Performed
• Laparoscopic Sleeve Gastrectomy 
• Roux-en-Y Gastric Bypass 


1971. Pamela Masella, DO FACS
Practicing Surgeon
Surgeries Performed
• Bariatric Endoscopy Procedures 
• Follows Other Surgeons' Patients 
• Gastric Banding 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 
• Other Gastric Bypass 
• Other Gastric Restriction 
• Revision/Conversion of Prior Procedure 
• Roux-en-Y Gastric Bypass 
• Single Anastomosis Duodeno-ileostomy 


1972. John Mason, MD
Practicing Surgeon
Surgeries Performed
• Gastric Banding 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 
• Other Gastric Bypass 
• Roux-en-Y Gastric Bypass 

Practice Location
1602 Rock Prairie Rd Ste 3000
Suite 3000
College Station, TX 77845-5989

Phone: (979) 774-3232

1973. Robin Mason, ACNP-BC
Integrated Health
Practice Location
55 Lake Ave N Rm H1-760
rm H1-760
Worcester, MA 01655-0002

Phone: (508) 334-0545

1974. Tyrisha Mason, BSN RN
Integrated Health
Phone: (469) 814-2548

1975. Mario Masrur, MD FACS
Practicing Surgeon
Surgeries Performed
• BPD w/ Duodenal Switch 
• Bariatric Endoscopy Procedures 
• Follows Other Surgeons' Patients 
• Gastric Banding 
• Intragastric Balloon 
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 
• Other Gastric Restriction 
• Revision/Conversion of Prior Procedure 
• Roux-en-Y Gastric Bypass 
• Single Anastomosis Duodeno-ileostomy 

Practice Location
840 S Wood St Ste 435
Chicago, IL 60612-4325

Phone: (312) 355-1493

1976. Autumn Mastroianni, RD LD
Integrated Health

1977. Emil Matei, MD FACS
Practicing Surgeon
Surgeries Performed
• Intragastric Balloon 
• 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
601 N Flamingo Rd Ste 409
Suite 409
Pembroke Pines, FL 33028-1012

Phone: (954) 844-4480

1978. Lisa Matero, PhD
Integrated Health
Phone: (313) 214-8240

1979. Gurdeep Matharoo, MD FACS
Practicing Surgeon
Surgeries Performed
• Laparoscopic Roux-en-Y Gastric Bypass 
• Laparoscopic Sleeve Gastrectomy 
• Revision/Conversion of Prior Procedure 

Practice Location
10 Industrial Way E Ste 104
Suite 104
Eatontown, NJ 07724-3333

Phone: (732) 389-1331

1980. Winn Mathews, MD
Practicing Surgeon
Surgeries Performed
• Follows Other Surgeons' Patients 
• Laparoscopic Sleeve Gastrectomy 
• One Anastomosis Gastric Bypass 
• Revision/Conversion of Prior Procedure 
• Roux-en-Y Gastric Bypass 

Practice Location
917 Tuscaloosa Ave SW
Birmingham, AL 35211-1618

Phone: (205) 780-7150