Our Physicians

Andrew J. Grade, MD
Andrew J. Grade, MD

Address: 1520 S. Dobson Road Suite 302 | Mesa, AZ 85202
Phone: (480) 461-1088
Fax: (480) 461-1657
Appointments: Set An Appointment With Dr. Grade
Click Here to Schedule Open Access Colonoscopy with Dr. GradeEducation
- B.S. University of Wisconsin
- M.D. Medical College of Wisconsin
- Residency and Chief Residency – Banner Good Samaritan Medical Center & Carl T. Hayden VA Medical Center
- Gastroenterology Fellowship – University of Arizona Affiliated Hospitals
- Therapeutic Gastroenterology – University of Arizona Affiliated Hospitals
Board Certification
- American Board of Internal Medicine – Internal Medicine
- American Board of Internal Medicine – Gastroenterology & Hepatology
Associations & Memberships
- American College of Gastroenterology
- American College of Physicians
- American Medical Association
- American Society of Gastrointestinal Endoscopy
Hospital Affiliations
- Banner Desert Medical Center

Charles I. Saperstein, MD
Charles I. Saperstein, MD

Address: 3048 E. Baseline Rd Suite 105 | Mesa, AZ 85204
Phone: (480) 545-6060
Fax: (480) 632-0467
Appointments: Set An Appointment With Dr. Saperstein
Call (480) 663-5930 to Schedule Open Access Colonoscopy with Dr. SapersteinEducation
- B.S. Boston University – Boston, MA
- M.D. University Autonoma de Guadalajara – Guadalajara, Mexico
- Internal Medicine Residency – University of Miami/Jackson Memorial Hospial
- Gastroenterology Fellowship – University of Miami/Jackson Memorial Hospial
Board Certification
- American Board of Internal Medicine – Internal Medicine
- American Board of Internal Medicine – Gastroenterology & Hepatology
Hospital Affiliations
- Banner Desert Medical Center

Rohit V. Mahajani, MD
Rohit V. Mahajani, MD

Address: 201 W. Guadalupe Road Suite 209 | Gilbert, AZ 85233
Phone: (480) 633-3796
Fax: (480) 545-3246
Appointments: Set An Appointment With Dr. Mahajani
Call (480) 663-5930 to Schedule Open Access Colonoscopy with Dr. MahajaniEducation
- M.D. – Gandhi Medical College, Hyderabad, India
- Intership- Coney Island Hospital, New York.
- Internal Medicine Residency – Albany Medical Center, New York
- Gastroenterology Fellowship – Rush Presbyterian St Luke’s Medical Center, Chicago
Board Certification
- American Board of Internal Medicine – Internal Medicine
- American Board of Internal Medicine – Gastroenterology & Hepatology
Associations & Memberships
- American Society of Gastrointestinal Endoscopy
- American College of Gastroenterology
- Phoenix Society of Gastroenterology
Hospital Affiliations
- Banner Desert Medical Center

Robert L. Sawyer, Jr., MD
Robert L. Sawyer, Jr., MD

Address: 1520 S. Dobson Road Suite 302 | Mesa, AZ 85202
Phone: (480) 461-1088
Fax: (480) 461-1657
Appointments: Set An Appointment With Dr. Sawyer
Click Here to Schedule Open Access Colonoscopy with Dr. SawyerEducation
- B.S. Mid-America Nazarene College – Olathe, KS
- M.D. University of Kansas – Kansas City, KS
- Internal Medicine Residency – University of Kansas School of Medicine
- Gastroenterology Fellowship – University of Arizona VA Medical Center
Hospital Affiliations
- Banner Desert Medical Center

Shiv Verma, MD
Shiv Verma, MD

Address: 1520 S. Dobson Road Suite 302 | Mesa, AZ 85202
Phone: (480) 461-1088
Fax: (480) 461-1657
Appointments: Set An Appointment With Dr. Verma
Click Here to Schedule Open Access Colonoscopy with Dr. VermaEducation
- M.D. Guwahati Medical College – Guwahati, India
- Internal Medicine Residency – State University of New York at Buffalo – Buffalo, NY
- Gastroenterology Fellowship – State University of New York at Buffalo – Buffalo, NY
Board Certification
- American Board of Internal Medicine – Internal Medicine
- American Board of Internal Medicine – Gastroenterology
Associations & Memberships
- American College of Gastroenterology
- American Society of Gastrointestinal Endoscopy
Hospital Affiliations
- Banner Desert Medical Center

Sumir M. Patel, MD
Sumir M. Patel, MD

Address: 1520 S. Dobson Road Suite 302 | Mesa, AZ 85202
Phone: (480) 461-1088
Fax: (480) 461-1657
Appointments: Set An Appointment With Dr. Patel
Click Here to Schedule Open Access Colonoscopy with Dr. PatelEducation
- B.S. University of Toledo – Toledo, OH
- M.D. St. George’s University School of Medicine – Grenada, WI
- Internal Medicine Residency – St Francis Medical Center
- Gastroenterology Fellowship – Allegheny General Hospital
Board Certification
- American Board of Internal Medicine – Internal Medicine
- American Board of Internal Medicine – Gastroenterology & Hepatology
Associations & Memberships
- American College of Gastroenterology
- Arizona State Physicians Association
- American Society of Gastrointestinal Endoscopy
Hospital Affiliations
- Banner Desert Medical Center

Nilay Kavathia, MD
Nilay Kavathia, MD

Address: 1520 S. Dobson Road Suite 302 | Mesa, AZ 85202
Phone: (480) 461-1088
Fax: (480) 461-1657
Appointments: Set An Appointment With Dr. Kavathia
Click Here to Schedule Open Access Colonoscopy with Dr. KavathiaEducation
- B.A. in Sociology, Case Western Reserve University – Cleveland, OH
- M.A. in Bio-medical Ethics, Case Western Reserve University – Cleveland, OH
- M.D. University of Arizona College of Medicine – Tucson, AZ
- Internal Medicine Residency, Thomas Jefferson University Hospitals – Philadelphia, PA
- Gastroenterology Fellowship, Phoenix VA/Good Samaritan Hospital – Phoenix, AZ
Board Certification
- American Board of Internal Medicine – Internal Medicine
- American Board of Internal Medicine – Gastroenterology
Associations & Memberships
- American College of Gastroenterology
- American Society of Gastrointestinal Endoscopy
Hospital Affiliations
- Banner Desert Medical Center

Sarabdeep Mann, MD
Sarabdeep Mann, MD

Address: 1520 S. Dobson Road Suite 302 | Mesa, AZ 85202
Phone: (480) 461-1088
Fax: (480) 461-1657
Appointments: Set An Appointment With Dr. Kavathia
Click Here to Schedule Open Access Colonoscopy with Dr. MannEducation
- Undergraduate: University of California, Los Angeles
- Medical School: Tufts University School of Medicine
- Residency: University of California, Davis
- Gastroenterology Fellowship: University of Arizona, College of Medicine Phoenix
Board Certification
- American Board of Internal Medicine – Internal Medicine
- American Board of Internal Medicine – Gastroenterology & Hepatology
Associations & Memberships
- American College of Gastroenterology
- American Society of Gastrointestinal Endoscopy
- American Medical Association
Hospital Affiliations
- Banner Desert Medical Center