Dr. Heather Furnas

Meet Dr. Furnas

Dr. Heather Furnas is a board-certified plastic surgeon who provides restorative results for her Santa Rosa, CA patients through quality aesthetic treatments. Before co-founding Plastic Surgery Associates and Allegro MedSpa with her husband, Dr. Francisco Canales, Dr. Furnas served on the plastic surgery faculty at Harvard Medical School and was on staff at the Beth Israel Hospital. Well-known as a caring and skilled plastic surgeon, she takes great pride in offering the highest level of care for her many patients.

Skills and Specialties

With over 20 years of experience, Dr. Furnas works with her patients to understand their aesthetic goals before providing customized cosmetic procedures. At Allegro MedSpa of Santa Rosa, she provides nonsurgical procedures for the rejuvenation of the body, face, and skin. As a part of injectable treatments, Dr. Furnas offers BOTOX, Juvéderm, Voluma, Restylane, Radiesse, and Kybella. For the body, she provides vaginal rejuvenation, G-spot enhancement, nonsurgical skin tightening, CoolSculpting, and Cellfina.

Education and Training

As an experienced and accomplished plastic surgeon, Dr. Furnas obtained her undergraduate and graduate degrees from Stanford University. At the UCLA School of Medicine, she completed her medical degree before returning to Stanford to complete her plastic surgery residency. Since then, Dr. Furnas has been board certified by the American Board of Plastic Surgery.

Professional Memberships

Dr. Furnas is a proud member of several prestigious organizations, such as:

  • The California Society of Plastic Surgeons
  • The American Society of Plastic Surgeons
  • The American Society of Aesthetic Plastic Surgery
  • The International Society of Aesthetic Plastic Surgery
  • Fellow of the American College of Surgeons

Publications and Leadership

Currently, Dr. Furnas is an adjunct assistant professor of plastic surgery at Stanford University. She also performs international lectures and provides publications for several prestigious plastic surgery journals, providing her expertise on topics, such as vaginal rejuvenation. In 2017, she received the ASAPS Tiffany Award for Best Scientific Paper for "Why Women Choose Labiaplasty," as well as the Ozzie Honorable Mention Award for her role as a guest editor for a series of articles on women in plastic surgery.

Humanitarian Work and Hobbies

Having been inspired after spending a year in Kenya with her father, Dr. Furnas serves the needs of children with birth defects in Peru, Honduras, Western Samoa, the Philippines, and El Salvador. Outside of her work, she greatly enjoys theater, books, art museums, writing, and most of all, spending time with her family.


"I love this med spa ! My style is very simple, jeans and no makeup. This place is for everyone.  I've seen Wendy (receptionist) greet patients with a warm smile and an approachable personality. She's emailed the doctors on more than one occasion  to get information I wanted. I've been a "fan" of this spa since they opened. Danielle (aesthetician) has always treated me with kindness and honesty. I'm a regular with her for Vela Shape, great for circulation and skin tone. I've also tried Ulthera ( for my face ) It's somewhat uncomfortable but worth it. She talked me through the procedure and described the process as she went along. Daniele has also given me a few facials and finished with a great eyebrow wax. I asked what products she would recommend for me. She advised me of products she knew would be conducive to my style.( not too much) I use a facial wash, sunscreen, vitamin C serum, lotion for my rosacea and I just started using a Retin A product for patients with rosacea. (I'll let everyone know how it works)The spa also has Cool Sculpting. Clients and staff who have had it done are thrilled with the results. The doctors didn't feel I was a candidate due to a minor medical condition .Dr. Canales and Dr. Furnas are always aware of their patients in the spa. I always feel safe and reassured with the procedures I've had done. I've also had great IPL treatments ( for rosacea) with Lisa (RN). Lastly, an added benefit of going to Allegro is learning of new procedures and surgeries from the spa and the doctors. Whew .....and that's what I know and experienced at Allegro Medspa"



"5 stars all around! Absolutely love everything about this spa and their services. The girls up front are so sweet, Wendy is a doll. Carolyn is amazing for Fraxel treatments and is incredibly knowledgeable. I have regular facials with Heather who is awesome as well. The products she's recommended have made a significant difference in the overall tone/clarity of my skin and I get compliments all the time now. I give my highest recommendation for Carolyn & Heather!"



"I just love Allegro Med Spa. They offer such a nice variety of treatments, and are so knowledgeable!  I just had their  Hydra Facial, done by Heather and it was the best facial treatment I've ever had and I've had many over the years. I was used to microdermabrasion but this is light years ahead of that. My skin was glowing for days. Heather was incredible, educating me in a fun way during the process and she did such a thorough job. Thank you so much. Will be back again as soon as I can ;)"



"Absolutely amazing Hydra Facial with Lucia in Novato! Most efficient, effective medical grade facial I’ve ever experienced!Skin brightening as well as ultra moisture!The professional and extremely knowledgeable staff of Krystal, Lucia and Nancy are a pleasure I have many choices close to home in Larkspur but very loyal and enjoy the Novato location!Thank you Dr. Canales and Dr. Furnas for having a well trained and knowledgeable staffJacqueline Iglehart"



"Breast Reduction - All around I could not have asked for anything more."



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*Individual results are not guaranteed and may vary from person to person. Images may contain models.