Summary

Dr. John Chan treats cataracts, glaucoma, and diabetic eye disease, and performs retinal imaging, optical coherence tomography, and tonometry as part of his ophthalmology practice. He has 29 years of experience and speaks English and Spanish.

Dr. Chan completed his residency at UC Irvine Medical Center and earned his medical degree from New York Medical College. He is affiliated with California Pacific Medical Center Davies Campus, CPMC Van Ness Campus, and Kaiser Permanente Fremont Medical Center, and sees patients in Union City and San Francisco, California. Patients on Vitals rate Dr. Chan 5 out of 5.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 5
  • 29 years of experience
  • speaks English, Spanish
  • Uc Irvine Medical Center
  • 1 specialty
  • 9 areas of expertise
  • 3 hospital affiliations
  • 3 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. John Koksen Chan has 3 locations

Vision Essentials By Kaiser Permanente

3553 Whipple Rd Bldg BUnion City, CA 94587
Mon8:30 am - 5:45 pm
Tue8:30 am - 5:45 pm
Wed8:30 am - 7:30 pm
Thu8:30 am - 5:45 pm
Fri8:30 am - 5:45 pm
Sat8:30 am - 4:45 pm
SunClosed

The Permanente Medical Group Inc Union City Medical Offices

3553 Whipple RdUnion City, CA 94587
Mon8:00 am - 5:30 pm
Tue8:00 am - 5:30 pm
Wed8:00 am - 5:30 pm
Thu8:00 am - 5:30 pm
Fri8:00 am - 5:30 pm
SatClosed
SunClosed

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Dr. John Koksen Chan, MD
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Dr. John Koksen Chan, MDDr. Nathaniel Aidan Blecher, MDDr. Ahmad Al-Moujahed, MD, PhD, MPHDr. Karen Wai, MD
OphthalmologyOphthalmologyOphthalmologyOphthalmology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
5 
0 
0 
0 
29 Years of Experience 7 Years of Experience 16 Years of Experience 8 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish
Union City , CALivermore , CALivermore , CALivermore , CA
Med School: New York Medical College Med School: University Of Pittsburgh School Of Medicine Med School: University Of Damascus Faculty Of Medicine Med School: Case Western Reserve University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. John Koksen Chan

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. John Koksen Chan has the following specialty

Specialty Expertise

Dr. John Koksen Chan has the following 9 areas of expertise

  • Blindness
  • Cataract
  • Diabetic Retinopathy
  • Eye Exam
  • Eye Pain
  • Glaucoma
  • Lasik Surgery
  • Macular Degeneration
  • Vision Issues

Certifications, License, & Education

29 Years Experience

Dr. John Koksen Chan 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

Residency

Completed their residency at Uc Irvine Medical Center.

Medical School

Graduated from New York Medical College in 1997.

NPI Number

Dr. Chan's NPI number is 1609928837.

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Frequently Asked Questions

Does Dr. John Chan accept my insurance?
You can see the insurance plans that Dr. John Chan accepts on their Vitals profile.
Where is Dr. John Chan's office located?
Dr. John Chan's office is located at 3553 Whipple Rd Bldg B, Union City, CA, 94587.
Is Dr. John Chan accepting new patients?
Dr. John Chan is accepting new patients on Vitals. View Dr. John Chan's profile on Vitals to make an appointment.
How can I make an appointment with Dr. John Chan?
You can find contact information for Dr. John Chan here on Vitals.
Which hospitals is Dr. John Chan affiliated with?
Dr. John Chan is affiliated with California Pacific Medical Center Davies Campus, Cpmc Van Ness Campus, and Kaiser Permanente Fremont Medical Center.

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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