Summary

Dr. Jay Harness is a thoracic surgeon with expertise in surgery and surgical oncology who has dedicated 57 years to patient care. He earned his medical degree from the University of Michigan Medical School and completed his residency at the University of Michigan Health System. Dr. Harness speaks English and brings extensive experience to his surgical practice.

Dr. Harness maintains affiliations with Saint Joseph Hospital Orange and practices in Mission Viejo, California. His specialized training in thoracic surgery allows him to address complex chest and lung conditions requiring surgical intervention. Patients have given him an average rating of 4.4 out of 5 on Vitals, reflecting their confidence in his surgical expertise and patient care.

Overview based on verified provider data

Quick Facts

  • 4.4
  • 57 years of experience
  • 4 insurance plans accepted
  • speaks English
  • University Of Michigan Health System
  • 3 written reviews
  • 3 specialties
  • 15 areas of expertise
  • 1 hospital affiliation
  • 1 office location
  • Male

Patients’ Perspective

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

Office Location

Choc Childrens Hospital At Mission Viejo

27700 Medical Center RdMission Viejo, CA 92691

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Dr. Jay Kenneth Harness, MDKerry Michelle WilliamsIII Daniel DelgadilloDr. Trevor Joel Tsay
Thoracic SurgeryNurse PractitionerSurgeryFamily Medicine
Accepts New Patients
4.4 
57 Years of Experience 9 Years of Experience 7 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks Spanish, English
Mission Viejo , CAOrange , CABakersfield , CAOrange , CA
Med School: University Of Michigan Medical School Med School: Michigan State University College Of Human Medicine Med School: California Northstate University College Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Jay Kenneth Harness

  • Anthem Blue Cross
  • Medicare
  • Medicare - Medicare
  • UnitedHealthcare

Medical Specialties

Dr. Jay Kenneth Harness has the following 3 specialties

Specialty Expertise

Dr. Jay Kenneth Harness has the following 15 areas of expertise

  • Adenoma (Warthin's tumor)
  • Breast Cancer
  • Breast Diseases
  • Carcinoma
  • Cryosurgery
  • Fibroadenoma
  • Glandular Cancer (Adenocarcinoma)
  • Hyperparathyroidism
  • Pancreatic Diseases
  • Parathyroid Gland Cancer (Parathyroid Neoplasm)
  • Surgery
  • Surgical Oncology
  • Thyroid Cancer
  • Thyroid Cancer (Papillary Carcinoma)
  • Thyroid Gland Removal (Thyroidectomy)

Certifications, License, & Education

57 Years Experience

Dr. Jay Kenneth Harness 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 2026.

Education & Training

Residency

Completed their residency at University Of Michigan Health System.

Medical School

Graduated from University Of Michigan Medical School in 1969.

NPI Number

Dr. Harness' NPI number is 1477549426.

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Frequently Asked Questions

Where is Dr. Jay Harness's office located?
Dr. Jay Harness's office is located at 27700 Medical Center Rd, Mission Viejo, CA, 92691.
What languages does Dr. Jay Harness speak?
Dr. Jay Harness speaks English.
Does Dr. Jay Harness accept my insurance?
You can see the insurance plans that Dr. Jay Harness accepts on their Vitals profile.
Is Dr. Jay Harness accepting new patients?
Dr. Jay Harness has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. Jay Harness accept virtual/telehealth appointments?
Dr. Jay Harness has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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