Summary

Dr. Michael Koumjian specializes in thoracic surgery, focusing on surgical treatments of the chest, lungs, and related structures. He earned his medical degree from Rutgers New Jersey Medical School and completed his residency at the United States Naval Medical Center. With 49 years of experience in medicine, Dr. Koumjian brings extensive knowledge to his practice. He is fluent in both Spanish and English.

Dr. Koumjian practices at multiple locations throughout Southern California, including La Mesa, Chula Vista, and National City. His hospital affiliations include Sharp Grossmont Hospital, where he provides comprehensive care. He treats patients with high blood pressure conditions, including hypertensive emergencies and pediatric hypertension cases. Dr. Koumjian performs diagnostic procedures such as chest X-rays and CT scans to help evaluate and monitor his patients' conditions. Patients have given him an average rating of 4.6 out of 5 stars.

AI-generated from data on this provider profile.

Quick Facts

  • accepting new patients
  • 4.6
  • 49 years of experience
  • 60 insurance plans accepted
  • speaks Spanish, English
  • United States Naval Medical Center
  • 4 written reviews
  • 1 specialty
  • 6 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 8 office locations
  • Male

Office Locations

Dr. Michael Peter Koumjian has 8 locations

Koumjian Michael P Office

5525 Grossmont Center Dr Ste 609La Mesa, CA 91942
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 5:00 pm
SatClosed
SunClosed

5525 Grossmont Center Drive

5525 Grossmont Center DrLa Mesa, CA 91942
Mon5:30 am - 5:00 pm
Tue5:30 am - 5:00 pm
Wed5:30 am - 5:00 pm
Thu5:30 am - 5:00 pm
Fri5:30 am - 5:00 pm
SatClosed
SunClosed

Paradise Valley Hospital

2400 E 4th StNational City, CA 91950

Sharp Chula Vista Medical Center

751 Medical Center CtChula Vista, CA 91911

Sharp Grossmont Hospital

5555 Grossmont Center DrLa Mesa, CA 91942

Rancho Springs Medical Center

25500 Medical Center DrMurrieta, CA 92562

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Dr. Michael Peter Koumjian, MDDr. Gert Diederick Victor Pretorius, MDDr. Joshua Titus Kindelan, MDDr. Kelly Renee Brand
Thoracic SurgeryThoracic SurgeryThoracic SurgeryThoracic Surgery
Accepts New Patients Accepts New Patients Accepts New Patients
4.6 
3.7 
49 Years of Experience 33 Years of Experience 29 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks Spanish, English Speaks Spanish, Chinese, English Speaks English Speaks Spanish, English
La Mesa , CALa Jolla , CASan Diego , CASan Diego , CA
Med School: Rutgers New Jersey Medical School Med School: University Of Pretoria School Of Medicine Med School: Uniformed Services Univ Of The Health Sciences F E Hebert Schl Of Medicine
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. Michael Peter Koumjian

  • Accepts Medicare
  • Accepts Medicaid
  • AARP
  • Adventist Health
  • Aetna
  • Aetna - HMO
  • Aetna - POS
  • Aetna - PPO
  • Alignment Health Plan
  • Alignment Health Plan - HMO
  • AlphaCare
  • AltaMed Senior BuenaCare (PACE)
  • Anthem Blue Cross
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Arizona
  • BLUE CROSS of CALIFORNIA
  • BLUE CROSS of CALIFORNIA - HMO
  • Blue Shield of California
  • Blue Shield of California - HMO
  • Blue Shield of California - Medicaid (Managed)
  • Brand New Day
  • CalOptima
  • CareFirst Blue Cross Blue Shield
  • CareFirst Blue Cross Blue Shield - Medicaid (Managed)
  • Cigna
  • Community Health Group
  • Community Health Group - Medicaid (Managed)
  • Florida Blue: Blue Cross Blue Shield of Florida
  • Health Net
  • Health Net - HMO
  • HealthPartners - HMO
  • Humana
  • Humana - HMO
  • Imperial Health Plan of California
  • Inland Empire Health Plan
  • Kaiser Permanente
  • Kaiser Permanente - HMO
  • Kaiser Permanente - Medicaid (Managed)
  • L.A. Care Health Plan
  • L.A. Care Health Plan - HMO
  • Medi-Cal - Medicaid (Managed)
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Molina Healthcare
  • Molina Healthcare - HMO
  • Molina Healthcare - Medicaid
  • Molina Healthcare - Medicaid (Managed)
  • Molina Healthcare - Medicare
  • Molina Healthcare - Medicare (Advantage HMO)
  • Optum Health
  • Premier Health Plan
  • SCAN Health Plan
  • SCAN Health Plan - HMO
  • Sharp Health Plan
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - PPO
  • Wellcare

Medical Specialties

Dr. Michael Peter Koumjian has the following specialty

Specialty Expertise

Dr. Michael Peter Koumjian has the following 6 areas of expertise

  • Aneurysm
  • Deep Vein Thrombosis
  • Diabetes Complications
  • Thoracic/Cardiothoracic Surgery
  • Varicose Veins
  • Vascular Malformations

Certifications, License, & Education

49 Years Experience

MEDICAL LICENSE

Medical Doctor, California, 2026, Active

EDUCATION & TRAINING

Residency

United States Naval Medical Center

Medical School

Rutgers New Jersey Medical SchoolGraduated in 1977

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Frequently Asked Questions

What languages does Dr. Michael Koumjian speak?
Dr. Michael Koumjian speaks Spanish and English.
How can I make an appointment with Dr. Michael Koumjian?
You can find contact information for Dr. Michael Koumjian here on Vitals.
Is Dr. Michael Koumjian accepting new patients?
Dr. Michael Koumjian is accepting new patients on Vitals. View Dr. Michael Koumjian's profile on Vitals to make an appointment.
Where is Dr. Michael Koumjian's office located?
Dr. Michael Koumjian's office is located at 5525 Grossmont Center Dr Ste 609, La Mesa, CA, 91942.
Does Dr. Michael Koumjian accept virtual/telehealth appointments?
Dr. Michael Koumjian has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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