About Us

Nello A. Rossi, MD

Meet Phoenix Anti-Aging Doctor Nello RossiMy name is Nello A. Rossi, MD. I was born in Pekin, Illinois and grew up in Manito, Illinois, a small rural town. I received a Bachelor of Science degree from Bradley University in Peoria, Illinois, with a major in Psychology in 1973. I received a Master of Arts degree in Clinical Psychology from Bradley University in 1976, during which time I co-authored several published articles dealing with Addiction research. I started medical school at the Autonomous University of Guadalajara in 1976 and subsequently transferred to the University of Illinois, Peoria School of Medicine, where I received my Doctor of Medicine degree in 1981. My Internship was in Spokane, Washington, at Internal Medicine Spokane. I came to Phoenix to do my Residency in Internal Medicine at St. Joseph’s Hospital and Medical Center from 1982 to 1984. I became a Diplomate of the American Board of Internal Medicine in 1984. I also became a Diplomate of the American Board of Emergency Medicine in 1989 and worked as an Emergency Physician for 20 years.

Locally, I worked in the Emergency Rooms at the old Maryvale Samaritan Hospital, St. Joseph’s Hospital and Medical Center and Banner Good Samaritan Medical Center. I also worked part-time for 10 years in the Emergency Room at Foothill Presbyterian Hospital in Glendora, California.  I was voted a “Top Doc” in Emergency Medicine in the May 1997 issue of Phoenix Magazine.

I left Emergency Medicine in 2004 and became interested in Anti-Aging Aesthetic Medicine. With the encouragement of my three sisters, all of whom are enthusiastic patients, my partner Zavier and I opened Willo MediSpa in March 2008 just as the Great Recession hit. Thru the subsequent hard times, we became established and have continued to grow and thrive. In May 2013 we moved into our own building at 201 East Monterey Way, Phoenix, Arizona 85012.


Office Manager at Willo MediSpa in PhoenixI was born in Jefferson City, Missouri. After high school, I attended Lincoln University in Jefferson City and graduated in 2004 with a BS degree majoring in Chemistry. I moved to Phoenix in 2006. Nello and I started Willo MediSpa together in 2008. I am the Office Manager, Boy Friday, Receptionist and Computer Geek for Willo MediSpa. I am the face behind the desk and the voice on the phone. I am the person who will schedule your appointment, check you out and make sure you receive all of your Brilliant Distinctions® discounts. I am also well versed on our skin care products and can answer your questions about them.


Service Dog at Anti-Aging Med Spa in Phoenix, AZMy name is Muzzy. I am a Service Dog. I was born in Watkins, Colorado, on November 30, 2004. My mother was a Chocolate Labrador and my father was an Australian Blue Heeler. I am the greeter at the office. When you come to the door you will hear me barking and see me wagging my tail. I’m not an aggressive dog, but I love to bark. I’m just letting Zavier know that you are here. Once you start petting me I usually quiet down.

The main service I perform at the office is to comfort patients who are nervous about getting injections such as BOTOX® Cosmetic treatments or JUVÉDERM® XC dermal volume fillers. I will sit on your feet and lean against you so that you can pet me as much as you like. You can even take off your shoes and rub your feet on my belly, though I might steal your socks. If you want, I will lay across your lap while you are sitting down. The other things I do at the office include carrying charts and leading patients to their room.

Outside of my office duties, I love to swim and dive. You can ask to see the picture of me jumping from a nine foot cliff at Lake Pleasant. I like to chase tennis balls and will always bring them back so you can throw them again. I like to retrieve things from the bottom of a pool and can hold my breath and submerge to a depth of ten feet.

I know that some patients are afraid of big dogs like me. If you are, please let Zavier know and he will ask me to stay in a room out of your way. I might pout if I have to go, but I’ll still like you anyway.

Contact Willo MediSpa About An Appointment

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Willo Medispa


201 E. Monterey Way
Phoenix, AZ 85012