Summary

Dr. Matthew Sitzer is a gastroenterologist who earned his medical degree from the University of California San Diego School of Medicine. With four decades of practice, he brings extensive expertise to digestive health care. Dr. Sitzer communicates with patients in English.

Dr. Sitzer practices at San Diego Medical Center and sees patients at locations in San Marcos and San Diego. He specializes in treating conditions such as rectal bleeding, stomach pain, and digestive upset. His procedural expertise includes diagnostic testing and specialized biopsies for kidney transplant patients and nerve conditions. Patients rate Dr. Sitzer 4.9 out of 5 stars for his care.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.8
  • 40 years of experience
  • 21 insurance plans accepted
  • speaks English
  • University Of California San Diego School Of Medicine
  • 4 written reviews
  • 1 specialty
  • 10 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 2 office locations
  • Male

Office Locations

Dr. Matthew Erich Sitzer has 2 locations

Kaiser Permanente San Marcos Medical Offices

400 Craven RdSan Marcos, CA 92078
Mon8:30 am - 5:00 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 5:00 pm
Thu8:30 am - 5:00 pm
Fri8:30 am - 5:00 pm
SatClosed
SunClosed

San Diego Medical Center

4647 Zion AveSan Diego, CA 92120

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Dr. Matthew Erich Sitzer, MDTheresa Obonyano, APRNAshley Anderson, APRNJi Soo Choi, APRN
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.8 
40 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English Speaks English Speaks English
San Marcos , CASACRAMENTO , CASACRAMENTO , CASACRAMENTO , CA
Med School: University Of California San Diego School Of Medicine Med School: The University of Texas Health Science Center at Houston Med School: East Tennessee State University - Quillen College of Medicine Med School: New York University
Current Profile
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Insurance Plans Accepted by Dr. Matthew Erich Sitzer

  • Accepts Medicare
  • Accepts Medicaid
  • Aetna
  • BLUE CROSS of CALIFORNIA
  • CHAMPVA
  • Community Health Group
  • Contra Costa Health Plan
  • Health Net
  • Health Net - HMO
  • Health Net - Medicare
  • HealthPartners
  • Inland Empire Health Plan
  • Kaiser Permanente
  • Kaiser Permanente - DHMO
  • Kaiser Permanente - HMO
  • L.A. Care Health Plan
  • L.A. Care Health Plan - HMO
  • Medicaid - Medicaid (HMO Plans)
  • Medicare
  • Medicare - Medicare
  • Molina Healthcare
  • Molina Healthcare - Medicaid
  • Regence BlueCross BlueShield of Oregon

Medical Specialties

Dr. Matthew Erich Sitzer has the following specialty

Specialty Expertise

Dr. Matthew Erich Sitzer has the following 10 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Hemorrhoids
  • Hepatitis C
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

40 Years Experience

MEDICAL LICENSE

Medical Doctor, California, 2025, Expired

EDUCATION & TRAINING

Medical School

University Of California San Diego School Of MedicineGraduated in 1986

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Frequently Asked Questions

What languages does Dr. Matthew Sitzer speak?
Dr. Matthew Sitzer speaks English.
How can I make an appointment with Dr. Matthew Sitzer?
You can find contact information for Dr. Matthew Sitzer here on Vitals.
Which hospitals is Dr. Matthew Sitzer affiliated with?
Dr. Matthew Sitzer is affiliated with SAN DIEGO MEDICAL CENTER.
Does Dr. Matthew Sitzer accept virtual/telehealth appointments?
Dr. Matthew Sitzer has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Dr. Matthew Sitzer's office located?
Dr. Matthew Sitzer's office is located at 400 Craven Rd, San Marcos, CA, 92078.

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