SuMa Medicine

5655 Bryant Street Suite 108
Pittsburgh, PA 15206

(724) 452-5200

By Appointment

Better Health. Naturally.

Optimize Your Health & Wellness

Optimize Your Health & Wellness

Optimize your health now with functional medicine – before diseases and disorders arise.

Let’s review your medical history, environmental exposures, and lifestyle choices that may affect your well-being.

By taking action now, you can plan for a long, healthy life.

Get Support for a Chronic Illness

Optimize Your Health & Wellness

Discover the root cause of your unresolved health issue and receive a personalized path towards better health.

I specialize in autoimmune disorders such as rheumatoid arthritis, Hashimoto’s thyroiditis, Sjogren’s disease, as well as heart disease, environmental allergies, mold toxicity, and more.

Receive the answers you need to take control of your health and well-being

Prepare for a Healthy Pregnancy & Baby

Optimize Your Health & Wellness

Get ready for a healthy pregnancy and a healthy baby.

Let’s work together to manage the factors and stressors that affect conception and fertility for both partners.

Let’s create personalized plan to a health pregnancy that also promote the health, vitality, and well-being of your future children.

Start Your Journey to Better Health with Functional Medicine

At SuMa Medicine, I take a collaborative approach to improving your health. Together, we can identify the root causes of your health problems and develop a personalized plan to address them.

If you’ve been let down by conventional medicine, know that you’re not alone. I understand that traditional approaches to chronic or acute illnesses often fall short.

My focus is on functional medicine, which means I specialize in treating the root cause of health problems like autoimmune disorders, chronic fatigue, cognitive decline, cardiovascular disease, mold toxicity, and fertility issues.

These conditions can stem from various factors, such as environmental toxins, genetics, poor diet, and lifestyle choices. Factors that conventional medicine often overlooks but that functional medicine does not.

Let’s work together to identify the underlying cause of your health issue and develop a path to better health.

Get A Personalized Plan Tailored To You And Your Health And Wellness Goals. Feel Balanced And Energized Again.

Dr. Mary Davis, Medical Director of Suma Medicine

Experienced Functional Medical Doctor

I blend my extensive training in Western and Eastern medicine to offer a powerful whole-system approach to improving your health.

By combining modern conventional medicine and integrative approaches, I can help you create a personalized path towards optimal health and wellness that address the root cause of your health problem.

Dr. Davis is an IFM Certified Practitioner (IFMCP)

As an IFM Certified Practitioner, I am a rigorously trained and tested functional medicine doctor recognized for my expertise in treating complex, chronic illnesses.

Holding the IFMCP certification means I provide top-tier care and treatment, particularly for patients with unresolved health issues.

Learn more at Dr. Davis’s profile for the Institute for Functional Medicine

Online or In Person

Your care, comfort, and convenience are important. Dr. Davis prefers to meet in person for your initial appointment, and is then available online, by phone or in her Pittsburgh, PA office.

Getting healthy may seem hard, but talking with your doctor shouldn’t be.

Online or In Person

Your care, comfort, and convenience are important. Dr. Davis is available online, by phone or in her Pittsburgh, PA office.

Getting healthy may seem hard, but talking with your doctor shouldn’t be.

“I highly recommend Dr Mary Diana Davis for whatever ails you. I started seeing her for issues related to immune system and fatigue. Then this summer after numerous tick bites, I came down with 4 tick borne infections, ( 2 types of Borrelia, Bartonella, Babesia ) and heavy mold exposure. Dr Davis has been the key to helping me deal with it all. Her customized treatment protocol includes diet, energy management, the right antibiotics, herbal tinctures and detoxing . It’s a long road but I have great guidance. Cheers!”


“Dr Davis changed my life. For 12 years I have struggled with uncomfortable frustrating skin allergies that arose following intensive treatment for Acute Myeloid Leukemia. This itchiness made me miserable. Several Dermatologist and my PCP couldn’t help me, they prescribed one steroid after another with no idea what they were treating or how to help me long term.

I had two appointments with Dr Davis and a small amount of testing. She prescribed food based supplements and miraculously I have been free form the itchiness for the past 6 months! Dr Davis is extremely compassionate and knowledgeable.

She makes it easy to talk about health concerns, and her diagnosis and treatment protocol have hugely improved my health and general wellbeing!”


“In this day and age, we need to take control of our health and Dr Davis helps her patients to navigate this through her expertise and years of experience. She is the best of everything all rolled into one with her osteopathic, medical acupuncture, and functional medicine backgrounds.

Dr Davis is committed to helping her patients get to the root of the problem, and creates an empathetic, individualized approach for everyone.

Pittsburgh is very lucky to have her.”


“The greatest wealth is health.” -Virgil

Nurture Your Health and Wellness

Schedule your appointment today.

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