Summary

Dr. Konstantinos Vlachonassios is a cardiovascular disease specialist with additional expertise in interventional cardiology. He earned his medical degree from Aristotle University of Thessaloniki Medical School and completed his residency at Beth Israel Medical Center. With 38 years of clinical experience, Dr. Vlachonassios brings extensive knowledge to treating heart and vascular conditions. He is fluent in English, Spanish, and Tagalog.

Dr. Vlachonassios practices throughout the Downey, California area and maintains affiliations with multiple hospitals including Downey Regional Medical Center, PIH Health Hospital Whittier, and Kaiser Permanente Downey Medical Center. His clinical focus includes managing high blood pressure and hypertensive emergencies. He performs diagnostic procedures such as electrocardiograms and echocardiograms to evaluate heart function and structure. Patients rate his care an average of 4.5 out of 5 stars.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.5
  • 38 years of experience
  • speaks English, Spanish, Tagalog
  • Beth Israel Medical Center
  • 2 written reviews
  • 2 specialties
  • 15 areas of expertise
  • 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. Raghav Sharma, MDMaggie May-Wan PangTony Lee
Cardiovascular DiseaseCardiovascular DiseaseNurse PractitionerNurse Practitioner
Accepts New Patients Accepts New Patients Accepts New Patients
4.5 
38 Years of Experience 16 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish, Tagalog Speaks English, Hindi
Downey , CAWinter Park , FLLos Angeles , CAHuntington Park , CA
Med School: Aristotle University Of Thessaloniki Medical School Med School: New York Medical College
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

Is Dr. Konstantinos Vlachonassios accepting new patients?
Dr. Konstantinos Vlachonassios is accepting new patients on Vitals. View Dr. Konstantinos Vlachonassios's profile on Vitals to make an appointment.
How can I make an appointment with Dr. Konstantinos Vlachonassios?
You can find contact information for Dr. Konstantinos Vlachonassios here on Vitals.
Does Dr. Konstantinos Vlachonassios accept my insurance?
You can see the insurance plans that Dr. Konstantinos Vlachonassios accepts on their Vitals profile.
Where is Dr. Konstantinos Vlachonassios's office located?
Dr. Konstantinos Vlachonassios's office is located at 11101 La Reina Ave Ste 201, Downey, CA, 90241.
Which hospitals is Dr. Konstantinos Vlachonassios affiliated with?
Dr. Konstantinos 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.

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