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Dr. Mary Brittain Blankenship isn’t your average doctor—she’s on a mission to shake up healthcare! As the founder of Spruce MD, she believes medicine should be proactive, not just reactive. Board-certified in both Internal Medicine and Integrative Medicine, Dr. Blankenship encourages lifestyle changes to help patients reverse chronic disease and feel their absolute best.
She earned her medical degree from the University of South Alabama, trained in Internal Medicine at the University of Utah, and completed a two-year fellowship in Integrative Medicine through the Academy of Integrative Health and Medicine—becoming the first board-certified Integrative Medicine physician in the Upstate! With experience in hospital and cardiovascular inpatient medicine, plus a knack for using technology to improve patient care, she provides modern, personalized healthcare.
At Spruce MD, Dr. Blankenship takes the time to truly connect with patients, helping them tackle gut issues, hormones imbalances, skin concerns, and chronic conditions like hypertension and diabetes—so they can take charge of their health and thrive.
When she’s not transforming lives, you’ll find her running, road or gravel biking, hiking, or planning her next adventure. She’s also a passionate cook and an insatiable bookworm, and on weekends, she’s happily adventuring with her husband and kids.
Dr. Jeanne Shiffman is a double board-certified powerhouse in Family and Integrative Medicine with over 15 years of experience helping patients feel their best. She’s known for building genuine, collaborative relationships with her patients—because great healthcare starts with truly understanding the person behind the symptoms.
A proud Georgetown grad, Dr. Shiffman completed medical school and residency training there before diving deep into specialized training. She’s a Certified Functional Medicine Practitioner, a Certified Menopause Practitioner, and has advanced expertise in integrative medicine. Whether it’s thyroid health, menopause, adolescent care, hormones, or chronic fatigue, she’s passionate about finding the root cause of issues and helping patients regain their energy and balance.
When she’s not caring for patietnts in the clinic, you’ll find Dr. Shiffman cheering on the Clemson Tigers, flowing through a yoga class, or spending quality time with her adorable pug, Eloise—who might just be the real boss of the house!
Cynthia Boswell is a board-certified adult Nurse Practitioner with a gift for helping people feel their best. With expertise in hormone and thyroid health, geriatric care, and chronic disease management, she’s focused on finding the root causes of health issues—not just putting a bandage on symptoms. She completed her fellowship in functional medicine through the Academy of Anti-Aging Medicine and loves empowering patients to take charge of their well-being.
A graduate of Emory University (BSN) and Clemson University (MSN), Cynthia has called the Upstate home for over 20 years. When she’s not caring for patients, she’s living life in motion—teaching Barre3, coaching the local NICA mountain biking team, and tearing up the trails herself. She’s also an avid runner and loves nothing more than an adventure with her family. Whether she’s in the clinic or on a bike, Cynthia brings the same passion, energy, and drive to everything she does!
Katherine is a Registered Dietitian with over 25 years of experience helping people unlock the power of nutrition. With a degree in Coordinated Dietetics and advanced training from the Kalish Institute, she takes a functional and lifestyle-based approach to wellness, creating personalized plans that fuel energy and vitality. As a Certified LEAP Therapist (CLT), she’s a pro at designing anti-inflammatory diets to help patients feel their absolute best. She truly believes that the right nutrition can be a game-changer at any age.
Outside the clinic, Katherine is an adventurist. Whether she’s hiking, kayaking, or getting her hands dirty in the garden, she’s happiest when she’s out in nature. She also loves spending time with her three sons on Lake Jocassee and diving into a great book—because balance is everything!
Megan is your go-to guru for glowing skin and peak performance! A Licensed Aesthetician with 15 years of experience in medical aesthetics, she loves helping patients achieve their skincare goals through customized treatments and expert guidance—because everyone deserves that radiant, confidence-boosting glow.
But skincare isn’t her only superpower! Megan is also a Sports Performance Technician, running DEXA, VO2 Max, and RMR testing to help individuals fine-tune their health and performance. Whether she’s analyzing skin or science-backed fitness data, she’s passionate about helping people look and feel their absolute best.
Originally from sunny South Florida, Megan made her way to Southern California before settling in the Upstate—and now she wouldn’t want to be anywhere else! When she’s not working her magic in the clinic, you’ll find her in the kitchen whipping up something delicious (she’s a total foodie), spending quality time with her husband and family, or soaking up the great outdoors.
