Address
725 W. LaVeta Ave, Ste. 220, Orange, CA
Office Hours
7:30am - 4:30pm (Mon-Fri)
Office Number
(714) 771-5700
Fax
(714) 771-9977

Meet Our Team

Learn more about the practice that is here to assist you in your Endocrinology needs

Dr. Priya Khanijou Shah

Dr. Shah obtained the USC Presidential Scholar Award and attended USC for both her undergraduate and medical school education. She graduated Magna Cum Laude from undergraduate and with Alpha Omega Alpha medical school honors. Internship and Internal Medicine residency training, along with Endocrinology fellowship, were completed at the University of California, San Diego (UCSD). She maintained an Assistant Clinical Professor of Medicine role at UCSD in San Diego and the San Diego VA hospital until 2020 where she volunteered her time teaching in the resident/fellow clinics. Now, she volunteers her time in the education of the University of California, Irvine Endocrine fellows.

She trained with international leaders in diabetes management and has achieved the nationally recognized distinction of Endocrine Certification in Neck Ultrasonography. “Working with Dr. Rettinger has proven to be an invaluable experience.”

She currently holds a position on the board of directors for the Clinical Association of California Endocrinologists (CACE) and is a program co-chair for the Hot Topics in Primary Care Series which serves to educate primary care physicians on current trends in Endocrinology. She is a member of the program committee for the CACE annual symposium as well. She won the Orange Coast Magazine’s esteemed Physicians of Excellence Award for years 2017, 2018, 2019, and 2021.

Dr. Shah has a special interest in thyroid disease, thyroid cancer, diabetes, osteoporosis, PCOS and transgender medicine. She is fluent in Spanish and joined Endocrinology Medical Group of Orange County, Inc in 2010, upon completion of her training. “Both my parents are physicians and I learned early on that compassionate listening and up-to-date knowledge are the keys to healthy patients and a successful practice.”

Dr. Shah is married with two young children and enjoys spending time with her family, hiking, skiing, and dancing in her spare time.

Education

Medical School

USC School of Medicine, 2005

Internship

UC San Diego Medical Center, 2006

Residency

UC San Diego Medical Center, 2008

Fellowship

UC San Diego Medical Center, 2010

Certifications

Board Certifications

  • American Board of Internal Medicine, Endocrinology Diabetes and Metabolism
  • Endocrine Certification in Neck Ultrasound

Professional Associations

Dr. Aaron Rockoff

Dr. Rockoff graduated from Carnegie Mellon University with a BS in Computational Chemistry and then worked four years in software engineering before making the change to medicine.


Medical school and residency were completed in his home state of New Jersey, followed by an Endocrinology fellowship at University of California Irvine.

He has a particular interest and expertise in dyslipidemia – where he previously contributed a chapter on residual risk in treating hyperlipidemia – diabetes, osteoporosis, transgender medicine, and thyroid pathology, including ultrasound and diagnostic biopsy. “The best part of working at Endocrinology Medical Group is building relationships and supporting people through difficult times. The happiness and health of our patients make everything we do worthwhile.”

He and his wife reside in Irvine with their three children. Dr. Rockoff joined Endocrinology Medical Group of Orange County in 2014.

“I am thankful for the years of learning from Dr. Rettinger’s vast experience.”

Education

Medical School

New Jersey Medical School, 2009

Internship

Rutgers Robert Wood Johnson Medical School Program, 2010

Residency

Rutgers Robert Wood Johnson Medical School Program, 2012

Fellowship

University of California, 2012

Certifications

Board Certifications

  • American Board of Internal Medicine, Endocrinology Diabetes and Metabolism
  • American Board of Internal Medicine, Internal Medicine

Professional Associations

Cynthia Antonio

Endocrine Nurse Practitioner (MSN, FNP-C)

Cynthia graduated with a BS in Psychobiology from UCLA where she also completed her Masters in Public Health and worked in the field of cancer prevention research.  She obtained her Master of Science in Nursing and completed her Nurse Practitioner training at UCSF School of Nursing. Prior to joining Endocrinology Medical Group in 2018, she worked for several years in Family Practice, which deepened her interest in the care of patients with diabetes and thyroid issues

Cynthia speaks 3 languages fluently and sees many of our Spanish speaking patients. She and her husband are enjoying the adventure of parenting two young children.

“It is a privilege and pleasure to work on a team with such expertise and interest in the well-being of our patients.” 

Education

Bachelor's Degree

UCLA – Psychobiology & Public Policy , 2003

Master's Degree

UCLA – Community Health Sciences, 2008

Master's Degree

UCSF – Advance Practice Nursing/Family Nurse Practitioner, 2012

Certifications

Board Certifications

  • State of California Board of Registered Nursing
  • American Academy of Nurse Practitioners Certification Board (AANPCB) Certified Nurse Practitioner

Keirsten D. Montgomery

Endocrine Nurse Practitioner (MSN, FNP-C)

Keirsten joined Endocrinology Medical Group in September 2019, after working since 2008 at CHOC caring for adolescent diabetic and endocrine patients. She brings a wealth of knowledge in diabetes management and insulin pump therapy, as well as adrenal and pituitary disorders.

She received her Master of Science in Nursing from UCLA in Family Practice, and she spent additional extern time studying at Mayo Clinic and Carnegie Mellon University.

“I am excited for the opportunity to work with Endocrinology Medical Group of OC – the specialists we refer many of our grown CHOC patients to.”

Education

Bachelor's Degree

University Of Pittsburgh – Nursing Degree, 2003

Master's Degree

UCLA – Family Nurse Practitioner, 2008

Certifications

Board Certifications

  •  American Academy of Nurse Practitioners Certification Board (AANPCB) Certified Nurse Practitioner
We are pleased to now offer the novel technique of Radiofrequency Ablation for thyroid nodules