Summary

Dr. Konstantinos Vlachonassios is a cardiovascular disease specialist with additional expertise in interventional cardiology. He completed his medical education at Aristotle University of Thessaloniki Medical School and his residency at Beth Israel Medical Center. With 38 years of experience treating heart conditions, Dr. Vlachonassios brings extensive knowledge to his practice. He speaks Spanish, Tagalog, and English to better serve his diverse patient community.

Dr. Vlachonassios practices throughout the Downey, California area and maintains affiliations with several hospitals including Downey Regional Medical Center, PIH Health Hospital Whittier, and Kaiser Permanente Downey Medical Center. He specializes in treating high blood pressure conditions, including hypertensive emergencies and pediatric hypertension cases. His diagnostic expertise includes performing heart rhythm tests, advanced heart imaging with contrast, and detailed heart ultrasounds to evaluate cardiac function. Patients rate him 4.5 out of 5 stars for his care.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.5
  • 38 years of experience
  • speaks Spanish, Tagalog, English
  • Beth Israel Medical Center
  • 2 written reviews
  • 2 specialties
  • 15 areas of expertise
  • 2 board certifications
  • 8 hospital affiliations
  • 3 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Konstantinos Dim Vlachonassios has 3 locations

Vlachonassios Konstanti Office

11101 La Reina Ave Ste 201Downey, CA 90241
Mon8:00 am - 5:00 pm
Tue8:00 am - 2:00 pm
Wed8:00 am - 2:00 pm
Thu8:00 am - 2:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Downey Regional Medical Center

11500 Brookshire AveDowney, CA 90241

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Dr. Konstantinos Dim Vlachonassios, MD
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Dr. Konstantinos Dim Vlachonassios, MDDr. Ted Yang, MDDr. Raghav Sharma, MDDr. Sam Dawkins
Cardiovascular DiseaseCardiovascular DiseaseCardiovascular DiseaseCritical Care Medicine
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.5 
4.6 
38 Years of Experience 30 Years of Experience 16 Years of Experience 20 Years of Experience
No Virtual Visit Option No Virtual Visit Option Virtual Visit Available No Virtual Visit Option
Speaks Spanish, Tagalog, English Speaks English, Taiwanese, Mandarin Speaks English, Hindi
Downey , CATorrance , CAWinter Park , FLLos Angeles , CA
Med School: Aristotle University Of Thessaloniki Medical School Med School: New York Medical College Med School: New York Medical College Med School: Kings College London School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Konstantinos Dim Vlachonassios

  • Accepts Medicare

Medical Specialties

Dr. Konstantinos Dim Vlachonassios has the following 2 specialties

Specialty Expertise

Dr. Konstantinos Dim Vlachonassios has the following 15 areas of expertise

  • Acute Coronary Syndrome (ACS)
  • Arrhythmia
  • Atherosclerosis
  • Blood Clot
  • Heart Attack
  • Heart Block
  • Heart Diseases
  • Heart Failure
  • High Blood Pressure (Hypertension)
  • High Cholesterol
  • Hypertension
  • Interventional Cardiology
  • Stroke
  • Unstable Angina
  • Weight Loss

Certifications, License, & Education

38 Years Experience

Dr. Konstantinos Dim Vlachonassios holds an expired medical license in the state of California.

Medical License

Medical Doctor with an expired medical license in the state of California that expired in 2025.

Education & Training

Residency

Completed their residency at Beth Israel Medical Center.

Medical School

Graduated from Aristotle University Of Thessaloniki Medical School in 1988.

NPI Number

Dr. Vlachonassios' NPI number is 1851473003.

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Frequently Asked Questions

How can I make an appointment with Dr. Konstantinos Dim Vlachonassios?
You can find contact information for Dr. Konstantinos Dim Vlachonassios here on Vitals.
Where is Dr. Konstantinos Dim Vlachonassios's office located?
Dr. Konstantinos Dim Vlachonassios's office is located at 11101 La Reina Ave Ste 201, Downey, CA, 90241.
Which hospitals is Dr. Konstantinos Dim Vlachonassios affiliated with?
Dr. Konstantinos Dim Vlachonassios is affiliated with Downey Regional Medical Center, Pih Health Hospital Whittier, Uci Health Lakewood, Kindred Hospital Paramount, Whittier Hospital Medical Center, West Anaheim Medical Center, KAISER PERMANENTE DOWNEY MEDICAL CENTER, and La Palma Intercommunity Hospital.
Does Dr. Konstantinos Dim Vlachonassios accept virtual/telehealth appointments?
Dr. Konstantinos Dim Vlachonassios has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does Dr. Konstantinos Dim Vlachonassios accept my insurance?
You can see the insurance plans that Dr. Konstantinos Dim Vlachonassios accepts on their Vitals profile.

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