John M Pisacane, DMD

Dr. Pisacane was born in Yonkers, New York, where he lived the good life of a child in the 1960s. He ran around his neighborhood all summer with almost no parental supervision, played lots of baseball, and went to school 50 feet from his home.

Dr. Pisacane attended Cornell University, receiving his BA in Biology in 1982. His concentration was in neurobiology and behavior.

He then attended Tufts University for dental school, enjoying his time in Boston and graduating with his DMD degree in 1986.

He immediately moved to Flushing, New York, to spend a year in a hospital residency program. He took care of trauma cases, worked in the ER, and also provided general anesthesia in the OR. He doesn’t practice that type of dentistry here in Willow Glen but certainly can handle any emergency that comes his way!
He moved to San Jose in 1987 and has loved living here ever since.

Dr. Pisacane loves his job, and learning new dental techniques to benefit his patients is his passion. He has taken nearly 2500 hours of continuing education since his graduation 25 years ago, ensuring his ability to provide the most current and ideal treatment to his patients.

Dr. John has three sons over 20, Greg, Joe and Tim, and his wife Teresa has worked at Cisco for over 20 years. He is very involved in his local and state dental societies, holding leadership positions in both organizations. In his spare time he enjoys target shooting, working out at the gym, and going to movies.

Leah Wittman

Registered Dental Hygienist

Leah grew up in Los Gatos, California. She worked as a dental assistant for two years prior to attending Cabrillo College for Dental Hygiene. She graduated with honors in 2002.

Though Leah is the youngest member of our team, she and her husband Jeff have been married for more than ten years.
Leah has two daughters, Olivia and Ella, and added a new boy, Beau, to the family late last year.

She has loved being a part of this office since coming on board in 2004, and has found a second family in the staff and the patients. She takes many continuing education classes each year to make sure she is current with all of the latest information in dentistry.

One of her favorite things about working at Willow Glen Dentistry is the opportunity to meet new people and welcoming them to our “dental family”.

She looks forward to seeing you soon.

Fatima Sousa

Registered Dental Assistant

Fatima was born in Terceira, the Azores, a chain of islands 900 miles off the coast of Portugal in the Atlantic Ocean.
She moved here in 1995 and worked in the high tech industry for three years. Fatima decided to enter the health care field. She graduated from a dental assisting program in 1998 and received her Registered Dental Assisting license immediately afterwards.

She assists Dr. Pisacane and makes sure our patients are comfortable and at ease with her warm smile, sincere personality and great sense of humor.

She treats patients like family and helps them feel better.

She also keeps Dr Pisacane on his toes with her constant banter! In her free time she enjoys shopping, hiking and cooking, and eating!

Shanté Guel


Shanté will usually be the first person you talk to when you call Willow Glen Dentistry, and you’ll see her big smile when you walk in the door. She is our receptionist, but behind her smile is a bright, hardworking woman who serves many roles in our practice. She gives every patient the individual attention and care that they all deserve.

Shanté is committed to providing every patient with the high quality service expected at Willow Glen Dentistry. She is familiar with nearly all dental insurance plans, and helps every patient with treatment planning, scheduling and making financial arrangements.

Shanté grew up in Gilroy and Morgan Hill, and has lived in the South Bay her entire life. When Shanté isn’t working, she enjoys spending time with her son Marcelino and her daughter Sienna. She also loves to travel and plays pranks on the other staff members!