Learn More About Us?
Proudly serving communities in Phoenix since 2009.

Your Trusted Partner in Health and Wellness

Experience expert, personalized medical care with trusted providers, advanced technology, and a proactive approach to your long-term health.

Prompt Appointments / Comprehensive Care / Personalized Wellness Plans 

1k+ Satisfied Patients

Dr. Kristine Sarna

Co-Owner

“At Norterra Family Medicine, I believe in providing natural options for our patients to improve their health, including vitamin and nutraceutical therapies as well as acupuncture and lifestyle modifications..”

About Us

Compassionate Care for Your Health

Providing expert primary care through advanced technology, experienced medical professionals, and personalized treatment plans designed for long-term health and wellness.

Expert Providers

Led by experienced providers, we offer a concierge approach to healthcare—combining clinical expertise, personalized care, and a higher level of access.

Advanced Technology

Our concierge model is supported by cutting-edge technology and modern treatments, ensuring accurate diagnostics and highly individualized care.

0 +
Years Experience
0 +
Patients Treated
0 +
Expert Physicians & Support Staff
0 +
5-Star Google Reviews
Our Services

Comprehensive Care for Every Need

Functional Medicine

Functional Medicine aims to improve whole-body health and enhance overall well-being through integrative, holistic treatments

Bioidentical Hormones

Hormone optimization supports healthy aging. Our concierge approach restores balance to improve energy, metabolism, and long-term wellness.

Integrative Medicine

Comprehensive, concierge care for the whole family—combining preventive visits, hormone optimization, nutritional guidance, and holistic therapies.

Skin Cancer Screening

Routine skin cancer screenings as part of your concierge care allow for early detection and timely treatment, helping protect your long-term health.

Our Process

Seamless Care in Three Steps

( 01 )

Book a Meet & Greet

Start your care with a meet and greet—book online or by phone in just a few clicks and we’ll confirm your visit right away.

( 02 )

Initial Consultation

Unhurried, one-on-one consultations designed around you—focused on understanding your health, addressing concerns, and guiding you with clear, personalized recommendations.

( 03 )

Treatment & Care

A higher level of care—tailored treatment, proactive monitoring, and ongoing support to help you achieve and maintain optimal health.

Easy Access

Book Your Meet & Greet Quickly and Easily

This free meet and greet is a relaxed, non-medical visit to help you decide if our personalized, concierge approach to care is right for you.

Expert Providers

Meet Your Medical Team

Dr. Kristine Sarna

Family Medicine Practitioner

Dr. Rebecca Weiss

Family Medicine Practitioner

Molly Ann Allen

Physician Assistant

Nicole Walker

Physician Assistant

Happy Patients

What Our Patients Say About Us

Committed to providing personalized, concierge-level care—combining advanced technology, experienced providers, and a focus on your long-term well-being.

“I can’t say enough great things about Norterra Family Practice! From the moment you walk in, the staff is warm, welcoming, and truly attentive. The providers are professional, compassionate, and take the time to really listen and address concerns thoroughly. Every visit has been a positive experience.
Overall, Norterra Family Practice delivers exceptional care and service. Highly recommend!”

Jaye A.

Patient

"Exceptional care from start to finish, welcoming staff, unhurried appointments, and a supportive team that goes above and beyond, especially during critical health needs."

Imelda C. Patient

"Booking was simple and fast. The staff made me feel comfortable, and the doctors explained everything in detail. Truly excellent service."

Michael L. Patient

"My child received the best care here. The pediatrician was very attentive, and we’re grateful for the kindness and professionalism shown."

Emma R. Patient’s Parent

"Norterra Family Medicine delivers exceptional, personalized care supported by a knowledgeable and compassionate team. From the moment you walk in, you’re treated like family."

June E. Patient

"Norterra Family Medicine provides a comprehensive holistic approach to giving individual care to each and every patient. The entire staff are caring, attentive and helpful. I highly recommend this practice for holistic care."

Suzanne S. Patient

"The staff is incredibly welcoming, and Dr. Nicole Walker is outstanding! She genuinely cares about her patients and is always kind, professional, and very knowledgeable. I highly recommend her to anyone looking for excellent care."

Veronica R. Patient
Have More Any Questions?

We’re here for you—contact us anytime and we’ll make sure you get the answers you need.

Common Questions

Frequently Asked Questions About Our Services

How Can I Book An Appointment?

As a concierge practice, appointments are scheduled directly through our office. Please call our team to book your visit—we’ll help coordinate a time that works best for you.

Yes. Our concierge care model works alongside your private insurance. We continue to bill insurance for covered medical services while providing a higher level of personalized care. We participate with most major carriers; however, coverage may vary by plan. Please contact your insurance provider to confirm we are in-network.

To make the most of your visit, bring your ID, insurance information, current medications and supplements, and any recent records or labs. This allows us to deliver a more personalized, efficient experience.

Yes, you can reschedule or cancel your appointment by contacting our office. We kindly ask for advance notice so we can accommodate other patients.

We do not offer emergency services. For urgent or life-threatening situations, please call 911 or visit the nearest emergency room.

Yes, our board-certified physicians combine clinical expertise with a concierge approach to provide personalized, high-quality care

Dr. Kristine Sarna
Family Medicine Practitioner

Dr. Kristine Sarna is a board-certified Family Physician specializing in wellness and anti-aging services.

She is an Arizona native, having completed her medical school education at the University of Arizona in Tucson and her Family Practice Residency at Good Samaritan Hospital in Phoenix. Dr. Sarna is also Board Certified in Integrative Holistic Medicine and holds certification in Medical Acupuncture from UCLA School of Medicine.

Dr. Sarna enjoys treating patients of all ages. She believes in providing natural options for our patients to improve their health, including vitamin and nutraceutical therapies as well as acupuncture and lifestyle modifications.

Dr. Sarna has specialized training in Bioidentical Hormone Replacement Therapy for men and women. Dr. Sarna is co-owner of Norterra Family Medicine and Paradise Medspa & Wellness, our sister office, providing cosmetic skin care and wellness services.

Dr. Sarna was named one of the Top 10 Most Inspiring Women Leaders to Watch in 2025. Read the article here.

Dr. Rebecca Weiss
Family Medicine Practitioner

Dr. Rebecca Weiss is a board-certified Family Physician with a special emphasis on women’s health and dermatologic care. As an osteopathic physician she takes a holistic approach to medicine.

Dr. Weiss believes in developing a partnership with our patients, empowering patients to take charge of their health through education and encouragement toward more healthy lifestyles.

Dr. Weiss graduated from the New York College of Osteopathic Medicine and subsequently pursued her residency in Family Medicine at Brown University. Dr. Weiss is co-owner of Norterra Family Medicine and Paradise Medspa & Wellness, our sister office, providing cosmetic skin care and wellness services.

Dr. Weiss is listed in the Worldwide Who’s Who professional directory.

Molly Ann Allen
Physician Assistant

Molly Ann Allen is a board certified Physician Assistant. She attended and graduated from Midwestern University in Glendale, Arizona. She expanded her medical knowledge by graduating from the Fellowship in Integrative Medicine in the fall of 2019 at the Andrew Weil Center for Integrative Medicine, at the University of Arizona College of Medicine—Tucson.

She joins an elite group of practitioners to have initiated studies with this internationally-recognized integrative medicine program. Launched in 1997 by integrative medicine pioneer Andrew Weil, MD, the Fellowship in Integrative Medicine is a 1,000-hour, two-year distance-learning program. She is also an Arizona State University graduate and received a degree in Exercise Physiology.

She volunteers and organizes medical mission trips to Rocky Point, Mexico where she provides care to the underserved. She has worked in Family Practice and Internal Medicine for the last twenty one years. She has worked at Norterra Medicine since 2009. She enjoys treating patients of all ages and being able to care for entire families. Molly Ann believes in practicing preventive medicine and trying to maintain overall wellness. Molly Ann specializes in Bioidentical Hormone Replacement Therapy and has comprehensive experience in this area. Molly Ann is passionate about being a patient advocate.

She has resided in Phoenix since 1992. She is an active member of National Charity League, a mother-daughter philanthropic organization. Molly Ann has been married for 23 years and is a proud mother of two young adults.

Nicole Walker
Physician Assistant

Nicole Walker is a board certified Physician Assistant. She is a native of Arizona having received her Masters of Physician Assistant Studies from Midwestern University in Glendale, Arizona and her Bachelor of Science in Exercise Science from Arizona State University.

Over the course of her career Nicole has practiced in Family and Sports Medicine. She not only practiced in an office setting, but also going into high schools and colleges to perform sports physicals and cover athletic events.

Nicole really enjoys creating a comfortable environment and team approach with her patients to help treat their medical concerns. She has been married for 10 years and loves living in the valley and raising her 2 children in the beautiful Arizona desert.