"Suzanne and staff have been extremely professional and friendly. Suzanne has helped guide me to a healthier lifestyle, through her experience and commitment to new approaches to medical care. Lynn, the esthetician, is very knowledgeable, and very precise in all her applications. Very competent. And Brittany and Judi at the front desk are absolute rock stars!" 


Jon P., May 3, 2018 (Medford patient since 2018) 

Providers - Medford

Nisha Jackson, PhD MS NP HHP


Nisha Jackson is a nationally recognized hormone expert and gynecology health specialist.

Her private practice in primary care medicine specializes in the area of women’s health and gynecology and treatment for hormone imbalances that leave women and men experiencing the effects of insomnia, depression, fatigue, brain fog, weight gain, hormonal upset – with unique and cutting edge testing, most of these problems have an underlying hormonal imbalance associated with them.

Nisha is nationally recognized as a lecturer, motivational speaker, radio host, columnist, and author.  

She has founded many prestigious medical establishments in the past 25 years, including:      

• Ventana Wellness, an integrative medical health clinic dedicated to disease prevention, primary care, and hormonal health 

• Balance Docs, Inc., a national supplement corporation - specializing in products that help men and women with real life problems

• Rogue Clinical Laboratories, a regional endocrine laboratory specializing in hormone testing and research.

• Just Ask Nish – a nationally known radio and talk show program, and consulting service for women and men.

• Peak Medical – A specialized gynecological practice, focusing on wellness and hormone balancing for men and women.

Christa DeGrazia, MS WHNCP-BC


Christa DeGrazia is a Board Certified Women's Health Nurse Practitioner specializing in the primary and gynecologic care of women across the lifespan. She offers a comprehensive, team based approach offering full spectrum women’s healthcare in a calm, relaxing environment. She has a graduate degree in Women’s Health from Vanderbilt University and has had specialized medical training in care of women and hormonal imbalances. 

Christa is knowledgeable in the areas of gynecology and incontinence, prolapse and pelvic floor dysfunction. She has been trained in hormone balancing with the testing of hormones for men and women, and the use of natural bioidentical hormones that are individually dosed to meet the patients exact needs.

Christa offers full spectrum women's health and primary care. 

Christa additionally specializes in urogynecology and pelvic floor disorders in women and offers evaluations and treatments for incontinence and vaginal prolapse. She also offers evaluation and treatment of vulvar and vaginal symptoms or complications.

Suzanne Tershak, MSN FNP-BC MAc LAc

Suzanne joins Peak Medical Clinic of Medford, Oregon with extensive health care experience in traditional, integrative and functional medicine. At the start of her professional journey she obtained a Bachelor of Science degree in Nursing from Johns Hopkins University. Shortly thereafter to nurture a strong interest in mind/body medicine, Suzanne pursued a Master of Acupuncture from the Traditional Acupuncture Institute in Laurel Maryland. For over 10 years, she then worked as both a nurse and acupuncturist serving men, women and children in varying capacities. Eager to expand her professional role, in 2012, Suzanne graduated summa cum laude as a Family Nurse Practitioner from the University Maryland School of Nursing. She then achieved her dream of working as both a nurse practitioner and acupuncturist within the integrative medicine arena. Suzanne went on to train and practice at one of the most prestigious functional medicine clinics in the country-The Rothfeld Center for Integrative Medicine. 

Suzanne maintains significant experience addressing hormonal imbalances, auto immune disorders, digestive disturbance, emotional imbalances as well as reversing chronic illnesses and difficult to treat conditions. She embraces a deep curiosity about health and wellness and strives to offer her patients the best possible personalized treatments for the most desirable health outcomes -This is accomplished via the integration of western, eastern and natural medicine therapies. Suzanne is passionate about guiding each individual towards optimal physical, emotional and spiritual wellness. 

Lorelei Hoeptner

Lorelei not only has a passion for health and wellness, she is also dedicated to seeing our patients suceed. These talents make her the perfect coach for our weight loss patients.  Lorelei has had years of experience in health and fitness training and she helps our patients by: 

  • Evaluating dietary needs
  • Providing nutritional/weight loss counseling and advice
  • Creating a clinical nutrition and/or weight loss treatment plan 
  • Educating the public on nutrition issues
  • Researching the effects of nutrition on health and fitness
  • Consulting with our team of health care practitioners on nutritional management for a client

Lynn Barrus, Licensed Estetician

Lynn is an excellent esthetician with focused training in the areas of anti-aging and acne treatments. 

Lynn is dedicated to providing our patients at Peak skin treatments, hair removal and other esthetic procedures tin order to maintain their personal appearance and boost self-esteem.