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Tucson , AZ

Stem Cell Centers - Tucson
Contact Information

2001 W Orange Grove Rd, Suite 402,
Tucson , AZ 85704

Hours: Monday-Friday 8am-5pm

(520) 447-4211

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Dr. HUmmel, NMD

Dr. Michael Hummel, NMD

Dr. Michael Hummel is a board-certified Naturopathic Medical Doctor with extensive specialized training in regenerative injection therapies and physical medicine. In addition, he has further areas of focus in pain management, bioidentical hormone therapies, botanical medicine, nutrition, chronic infectious disease, and integrative oncology. Dr. Hummel received training in both modern allopathic medicine and chiropractic medicine before finding his calling in the individualized integrative approach of naturopathic medicine. He subsequently earned his medical degree from the Southwest College of Naturopathic Medicine. As well, he holds a Bachelors’ degree in Chemistry and a Bachelors’ degree in Biology with a pre-health emphasis from Northern Arizona University. After medical school, Dr. Hummel completed a 3-year NUNM, CNME-approved general practice residency.

Dr. Hummel is well known for his contribution to botanical medicine through his creation of the Bountiful Herbs Botanical Medicine Database; which is used by thousands of physicians and herbalists worldwide. Most importantly, Dr. Hummel is a husband to his wonderful spouse Mary and a father to his three young children: Jack, Daisy, and Calvin. He believes whole-heartedly in educating others about the philosophy and benefits of integrative medicine. His greatest joy is to see his patients’ health and lives improve while under his care.


 Shelly Scott PCA

Shelly Scott, Patient Care Advocate

Shelly Scott is the Patient Care Advocate for Stem Cell Centers in Tucson, Arizona. Shelly has been in the Medical Field for nine years with an extensive background in finance. Shelly is the author and publisher of “The Silent Killer” a book she wrote about inflammation and natural remedies.  Shelly is a perfect fit for our Stem Cell Center because she is passionate about helping people heal in a natural way.


Summer Hart FOM


Summer Hart, Front Office Manager

Summer Hart is the Front Office Manager for Stem Cell Centers in Tucson, Arizona. Her favorite part of being office manager is getting to know our clients and making them feel welcome. She enjoys ongoing opportunities to learn, grow and fulfill a wide variety of essential needs in our practice.

Before joining Stem Cell Centers, Summer was Customer Service Supervisor at a local Veterinary Hospital as she has always had a passion for animals. She also has a background in massage therapy and prefers natural medicine techniques which is what made her interested in Stem Cell Therapy.  She loves helping people and seeing them achieve their health goals.

Summer is a Tucson local and loves Arizona and all of its beauty. During her down time, she enjoys spending time with her husband and daughter. She also is an avid concert goer which is her favorite thing to do and enjoys a wide verity of music. Summer hopes to pursue her career in rejuvenation.

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