Doctors and Providers

Meet our Doctors at East County Urgent Care in El Cajon, CA

Our Doctors and Providers Are Committed to Helping You Feel Better! We Are Conveniently Located at 1625 E. Main Street # 100 El Cajon, CA 92021. Call Us Today for More Information.

Daniel Huhn M.D

Daniel Huhn M.D
Daniel Huhn M.D

Dr. Huhn completed his emergency medicine residency at Naval Hospital San Diego and then enjoyed a long career in naval medicine as an emergency physician and flight surgeon. For the last 3 years Dr Huhn has relished working at East County Urgent Care.

When not providing compassionate care to his patients, Dr Huhn enjoys spending time with his wife and four children. The whole family is very involved in boy scouts.

Calvin Wong, MD, FAAFP 
Family Medicine, Sports Medicine

Calvin Wong, MD, FAAFP

Family Medicine, Sports Medicine

Dr. Calvin Wong is a board-certified Family Medicine and fellowship trained Primary Care Sports Medicine physician. He is a graduate of the University of California, San Diego (UCSD) School of Medicine and has practiced in San Diego for over 15 years. He is currently the Medical Team Physician of the NFL San Diego Chargers and part of the medical team for the AHL San Diego Gulls.

He is a California native, having been born in Northern California. He graduated from the University of California, Berkeley with a B.S. in Biochemistry. After attending UCSD School of Medicine he completed a residency in Family Medicine at Kaiser Permanente Medical Center in Los Angeles. In addition, he completed advanced training in Primary Care Sports Medicine at UCSD. He has also achieved the honor of Fellow of the American Academy of Family Physicians.

As a volunteer clinical instructor in the Department of Family and Community Medicine at UCSD School of Medicine, he has shown a commitment to the education of future doctors.

Calvin Wong, MD, FAAFP 
Family Medicine, Sports Medicine

Calvin Wong, MD, FAAFP

Family Medicine, Sports Medicine

Dr. Calvin Wong is a board-certified Family Medicine and fellowship trained Primary Care Sports Medicine physician. He is a graduate of the University of California, San Diego (UCSD) School of Medicine and has practiced in San Diego for over 15 years. He is currently the Medical Team Physician of the NFL San Diego Chargers and part of the medical team for the AHL San Diego Gulls.

He is a California native, having been born in Northern California. He graduated from the University of California, Berkeley with a B.S. in Biochemistry. After attending UCSD School of Medicine he completed a residency in Family Medicine at Kaiser Permanente Medical Center in Los Angeles. In addition, he completed advanced training in Primary Care Sports Medicine at UCSD. He has also achieved the honor of Fellow of the American Academy of Family Physicians.

As a volunteer clinical instructor in the Department of Family and Community Medicine at UCSD School of Medicine, he has shown a commitment to the education of future doctors.


Andrew Saleh, MD, MPH

Family Medicine, Sports Medicine

Dr. Andrew Saleh is board-certified in Family Medicine and fellowship trained and certified in Primary Care Sports Medicine. He is a graduate of St. George’s University School of Medicine. He is currently the Medical Team Physician for the AHL San Diego Gulls and is part of the medical team for the NFL San Diego Chargers.

A native of Los Angeles, he completed his undergraduate training at the University of California, Los Angeles (UCLA) with a B.S. in Neuroscience. He obtained his Medical Degree from St. George’s University School of Medicine, where he also received a Masters of Public Health (MPH) degree. After attending medical school he completed his Family Medicine residency at Rutgers-Robert Wood Johnson Medical School in New Jersey, and had the honor of serving as Chief Resident. After residency he completed advanced training in Sports Medicine at the University of Maryland, where he served as Team Physician for the University of Maryland Terrapins and the NFL Baltimore Ravens.

During his career he has maintained a passion for providing quality care in both Family Medicine and Sports Medicine. He is dedicated to building long-lasting relationships with his patients and providing individualized medical care.

Andrew Saleh, MD, MPH

Family Medicine, Sports Medicine

Dr. Andrew Saleh is board-certified in Family Medicine and fellowship trained and certified in Primary Care Sports Medicine. He is a graduate of St. George’s University School of Medicine. He is currently the Medical Team Physician for the AHL San Diego Gulls and is part of the medical team for the NFL San Diego Chargers.

A native of Los Angeles, he completed his undergraduate training at the University of California, Los Angeles (UCLA) with a B.S. in Neuroscience. He obtained his Medical Degree from St. George’s University School of Medicine, where he also received a Masters of Public Health (MPH) degree. After attending medical school he completed his Family Medicine residency at Rutgers-Robert Wood Johnson Medical School in New Jersey, and had the honor of serving as Chief Resident. After residency he completed advanced training in Sports Medicine at the University of Maryland, where he served as Team Physician for the University of Maryland Terrapins and the NFL Baltimore Ravens.

During his career he has maintained a passion for providing quality care in both Family Medicine and Sports Medicine. He is dedicated to building long-lasting relationships with his patients and providing individualized medical care.


Monica K. Muñoz, MPH, MSHS, PA-C, Physician Assistant

Monica K. Muñoz, MPH, MSHS, PA-C

Physician Assistant

Monica is our full-time board-certified Physician Assistant. She is a graduate of The George Washington University in Washington, DC. There, she obtained her Master of Science in Health Sciences with a focus in Physician Assistant studies, as well as her Master of Public Health with a focus in Epidemiology. Prior to joining our team, she specialized in Occupational Medicine. Outside of work, you can find her crafting, baking, and spending time with her family, friends, and three cats.

Monica K. Muñoz, MPH, MSHS, PA-C, Physician Assistant

Monica K. Muñoz, MPH, MSHS, PA-C

Physician Assistant

Monica is our full-time board-certified Physician Assistant. She is a graduate of The George Washington University in Washington, DC. There, she obtained her Master of Science in Health Sciences with a focus in Physician Assistant studies, as well as her Master of Public Health with a focus in Epidemiology. Prior to joining our team, she specialized in Occupational Medicine. Outside of work, you can find her crafting, baking, and spending time with her family, friends, and three cats.


Cory Vallance, PA, Physician Assistant

Cory Vallance, PA

Physician Assistant

Cory comes to us with a multitude of experience. After retiring from the Air Force as a Logistician, Cory attended Eastern Virginia Medical School where she obtained her Masters of Physician Assistant degree. She has since worked in multiple specialties, to include Ob/Gyn, Urgent Care, Family Medicine, Wound Care, Mobile Medicine, Correctional Medicine and Internal Medicine. Her hobbies include surfing, biking, and traveling.

Cory Vallance, PA, Physician Assistant

Cory Vallance, PA

Physician Assistant

Cory comes to us with a multitude of experience. After retiring from the Air Force as a Logistician, Cory attended Eastern Virginia Medical School where she obtained her Masters of Physician Assistant degree. She has since worked in multiple specialties, to include Ob/Gyn, Urgent Care, Family Medicine, Wound Care, Mobile Medicine, Correctional Medicine and Internal Medicine. Her hobbies include surfing, biking, and traveling.


Erin Vierra, MSN, FNP-C, Family Nurse Practitioner

Erin Vierra, MSN, FNP-C

Family Nurse Practitioner

Erin is our part-time Family Nurse Practitioner. She is originally from Sacramento, CA. She received both her Bachelor’s in Nursing and her Master’s in Nursing from Emory University in Atlanta, Georgia. Prior to attending nursing school she received her Bachelor’s in Public Health from San Diego State University. She currently practices full-time internal medicine at Tri-City Medical Center in Oceanside and is Clinical Faculty at University of San Diego Hahn School of Nursing. She also sits as President-Elect for California Association of Nurse Practitioners San Diego Central Chapter. She is an active volunteer with American Red Cross and San Diego county Disaster Health Services. In her off time she enjoys loving on her dog, hiking, skiing, gardening and spending quality times with friends and family.

Erin Vierra, MSN, FNP-C, Family Nurse Practitioner

Erin Vierra, MSN, FNP-C

Family Nurse Practitioner

Erin is our part-time Family Nurse Practitioner. She is originally from Sacramento, CA. She received both her Bachelor’s in Nursing and her Master’s in Nursing from Emory University in Atlanta, Georgia. Prior to attending nursing school she received her Bachelor’s in Public Health from San Diego State University. She currently practices full-time internal medicine at Tri-City Medical Center in Oceanside and is Clinical Faculty at University of San Diego Hahn School of Nursing. She also sits as President-Elect for California Association of Nurse Practitioners San Diego Central Chapter. She is an active volunteer with American Red Cross and San Diego county Disaster Health Services. In her off time she enjoys loving on her dog, hiking, skiing, gardening and spending quality times with friends and family.