About Us

Our Mission

Aspen Family Medicine and Geriatrics is a healthcare facility dedicated to providing high quality and compassionate medical care for the entire family!  We strive to combine the use of modern medical technology in conjunction with comprehensive care focused on the overall well being of our patients

About Us

High Quality Medical Care and Service!

Aspen Family Medicine and Geriatrics began in 2002 as John A. Fagan Family Practice and operated for twelve years proudly serving the community of Rancho Cucamonga and surrounding areas.  In 2012, Dr. Fagan along with Physicians Assistant, Jocelyn Tomista decided to expand their ability to provide compassionate and quality care to their patients by welcoming aboard Dr. Mike Zuniga and Dr. Darlene Espinosa. Aspen Providers and staff are dedicated to helping you find answers to your medical questions and to provide you and your family with the quality medical care you deserve!

Facilities

Aspen strives to make each visit to our clinic as convenient and pleasant as possible!

  • Close and convenient parking and wheelchair accessibility
  • Comfortable waiting area is designed with your comfort in mind
  • Large screen television and coffee bar
  • Inviting seating for your convenience
  • Procedure Room for ultra sounds and vein ablations
  • Fully equipped exam rooms to provide up to date health care for the entire family!

Our Providers

Dr. John Fagan, MD

Special Interest: Geriatrics & Family Medicine

Undergraduate: University of San Diego, BA in Chemistry

Medical School: Loyola Stritch School of Medicine Board Certified in Family Practice and Geriatrics

Residency Training: San Bernardino County Medical Center, Family Practice

Personal Goal:  I view my role as a physician to be a vocation, not a job.  I try to use the talents I have been given to help those I am called to serve”

Dr. Imdad Ahmad, MD
Jocelyn Tomista, PA

Special Interests: Pediatrics, Dermatology, Minor Procedures

Undergraduate: California State University Long Beach, Bachelor of Science in Health Sciences, Health Education

Medical School: Western University of Sciences, Maters of Sciences, Physicians Assistant.

Training: Family Practice, Pediatrics Dermatology.

Personal Goal: “I consider it a privilege to be able to provide the highest quality medical care to each and every patient whom I meet.”

Meredith Dettmar, PA

Special Interests: Family Medicine, Endocrinology, Minor procedures

Undergraduate: University of California Riverside, Bachelor of Science in Biology

Medical School: Western University of Sciences, Master of Sciences, Physician Assistant.

Training: Endocrinology, Emergency Medicine

Personal Goal: “My goal is to provide the highest quality medical care to all patients that I will have the privilege of meeting.”

Grace Zamorana, NP

Special Interest: Geriatrics & Family Medicine

Undergraduate: University of San Diego, BA in Chemistry

Medical School: Loyola Stritch School of Medicine Board Certified in Family Practice and Geriatrics

Residency Training: San Bernardino County Medical Center, Family Practice

Personal Goal:  I view my role as a physician to be a vocation, not a job.  I try to use the talents I have been given to help those I am called to serve”

Dana Nemou, PA
Chelsea Henry, PA
Kristin Bierschbach, Practice Manager
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