Summary

Dr. Mark Cocalis treats congenital heart disease, Eisenmenger syndrome, and heart failure, and performs fetal echocardiogram, dobutamine stress echocardiogram, and Doppler echocardiogram procedures. He practices cardiology and critical care medicine and has 42 years of experience. He is affiliated with Doctors Medical Center of Modesto.

Dr. Cocalis earned his medical degree from the University of California, Los Angeles David Geffen School of Medicine, where he also completed his residency, and completed fellowships at UCLA David Geffen School of Medicine and UCLA Mattel Children's Hospital. He sees patients in Stockton and Modesto, California, and in San Francisco, California. Patients on Vitals rate Dr. Cocalis 4.91 out of 5.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.9
  • 42 years of experience
  • 38 insurance plans accepted
  • speaks English
  • University of California, Los Angeles David Geffen School of Medicine
  • 2 written reviews
  • 2 specialties
  • 4 areas of expertise
  • 1 hospital affiliation
  • 4 office locations
  • Male

Patients’ Perspective

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

Office Locations

Mark Williams Cocalis has 4 locations

Cardiology Clinic

2800 N California St Ste 15BStockton, CA 95204
MonClosed
Tue8:00 am - 4:00 pm
WedClosed
Thu8:00 am - 4:00 pm
FriClosed
SatClosed
SunClosed

Fetal Cardiovascular Program

1825 4th StSan Francisco, CA 94143
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

Cardiology Clinic

1444 Florida Ave Ste 103Modesto, CA 95350

Heart Failure & Transplant Program

1825 4th St # 6San Francisco, CA 94143

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Mark Williams Cocalis, MD
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Mark Williams Cocalis, MDJeffrey Breneisen, MDMilind Dhond, MDJaved Nasir, MD
CardiologyCardiologyCardiologyCardiology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.9 
5 
4.8 
2.8 
42 Years of Experience 33 Years of Experience 37 Years of Experience 20 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English, Spanish Speaks English, Spanish
Stockton , CAFairfield , CAFairfield , CAFairfield , CA
Med School: University of California, Los Angeles David Geffen School of Medicine Med School: University Of Illinois At Chicago College Of Medicine Med School: Guys Hospital Medical School Med School: Uniformed Services University Of The Health Sciences F Edward Hebert School Of Medicine
Current Profile
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Insurance Plans Accepted by Mark Williams Cocalis

  • Aetna
  • Aetna - HMO
  • Alameda Alliance for Health
  • Alignment Health Plan
  • AllCare Health
  • AllCare Health - IPA
  • AltaMed Senior BuenaCare (PACE)
  • Anthem Blue Cross
  • Blue Cross Blue Shield of Oklahoma
  • BLUE CROSS of CALIFORNIA - HMO
  • Blue Shield of California
  • Blue Shield of California - HMO
  • Central California Alliance for Health
  • Central California Alliance for Health - Medicaid (Managed)
  • Chinese Community Health Plan
  • Cigna
  • Health Net
  • Health Net - HMO
  • Health Plan of San Joaquin
  • Health Plan of San Joaquin - Medicaid (Managed)
  • Imperial Health Plan of California
  • Kaiser Permanente
  • Kaiser Permanente - Medicaid (Managed)
  • Magellan Health
  • Medicaid
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Partnership HealthPlan of California
  • SilverSummit Healthplan
  • Sutter Health Plus
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • Viva Health Plan - Medicaid (Managed)
  • Western Health Advantage
  • Western Health Advantage - HMO

Medical Specialties

Mark Williams Cocalis has the following 2 specialties

Specialty Expertise

Mark Williams Cocalis has the following 4 areas of expertise

  • Cardiovascular Disease
  • Critical Care Medicine
  • Pediatric Cardiology
  • Pediatrics

Certifications, License, & Education

42 Years Experience

Mark Williams Cocalis holds an active medical license in the state of California.

Medical License

Medical Doctor with an active medical license in the state of California that expires in 2027.

Education & Training

Fellowship

Completed their fellowship at University of California, Los Angeles David Geffen School of Medicine in 1990 and UCLA Mattel Children's Hospital in 1989.

Residency

Completed their residency at University of California, Los Angeles David Geffen School of Medicine in 1987 and University of California, Los Angeles David Geffen School of Medicine in 1985.

Medical School

Graduated from University of California, Los Angeles David Geffen School of Medicine in 1984.

NPI Number

Mark Williams Cocalis' NPI number is 1700817913.

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Frequently Asked Questions

Where is Mark Cocalis's office located?
Mark Cocalis's office is located at 2800 N California St Ste 15B, Stockton, CA, 95204.
Which hospitals is Mark Cocalis affiliated with?
Mark Cocalis is affiliated with Doctors Medical Center Of Modesto.
How can I make an appointment with Mark Cocalis?
You can find contact information for Mark Cocalis here on Vitals.
Does Mark Cocalis accept my insurance?
You can see the insurance plans that Mark Cocalis accepts on their Vitals profile.
What languages does Mark Cocalis speak?
Mark Cocalis speaks English.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

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