Our Team

A Team Passionate About Prosthodontics

For over three decades, Upstate Prosthodontics has been proudly serving the Upstate community, evolving alongside it while maintaining a steadfast commitment to expert care and innovative dental solutions. As our practice has grown and welcomed new patients, one constant has been our unwavering dedication to providing the highest quality prosthodontic care.

At the heart of this success are Dr. Donald Ridgell and Dr. James Pizzo, two accomplished prosthodontists who bring their combined expertise and passion for patient care to every treatment. Dr. Ridgell, with his extensive experience as Greenville’s first prosthodontist, and Dr. Pizzo, with his fresh perspective and advanced training in complex dental procedures, together form a dynamic team committed to restoring both function and aesthetics.

This strong foundation, built on experience, skill, and shared values, has earned Upstate Prosthodontics its stellar reputation. The team has been working together for many years, ensuring continuity, personalized care, and an atmosphere that feels like home.

Contact us today to experience the care you deserve.

Dr. Donald Ridgell
Dentist

DR. DONALD RIDGELL

Dr. Pizzo
Dentist

DR. JAMES PIZZO

Holly Ridgell
BUSINESS MANAGER

HOLLY RIDGELL

Erin Davis
Patient Care Coordinator

ERIN DAVIS

Shannon Kannarney
CERTIFIED DENTAL ASSISTANT

SHANNON KANNARNEY

Cassandra La'Shun Thompson
DENTAL HYGIENIST

CASSANDRA LA’SHUN THOMPSON

Abby Campbell
Student Assistant

ABBY CAMPBELL

Dentist

DR. DONALD RIDGELL

Dr. Don Ridgell is a clinical professor for the Medical University of South Carolina and runs a solo prosthodontic practice in Greenville. He opened the practice in 1988.

Dentist

DR. JAMES PIZZO

Bio coming soon…

BUSINESS MANAGER

HOLLY RIDGELL

Holly Ridgell is our Business Manager and Dr. Ridgell’s wife. She holds an Administrative Assistant degree from Hardbarger Business College and a BA in Creative Arts/Media/Public Relations from the University of North Carolina at Wilmington. She is a native of Durham, NC.

Patient Care Coordinator

ERIN DAVIS

Erin Davis is the Office Manager and handles all of our patients’ records, correspondence, appointments, and dental insurance needs. Erin was born in Greenville and grew up in Piedmont. She graduated from Wren High school. Erin is married to Justin Davis and they have a daughter. She has been with Upstate Prosthodontics since 2012.

CERTIFIED DENTAL ASSISTANT

SHANNON KANNARNEY

Shannon Kannarney has been assisting Dr. Ridgell since 1997. She came to the practice with a certification in Dental Assistance from Tri-County Technical College. Shannon is a Nationally Certified Dental Assistant and a member of the National Dental Assistant Association. Shannon is married to Wayne Kannarney and they have 2 children and five grandchildren.

DENTAL HYGIENIST

CASSANDRA LA’SHUN THOMPSON

Cassandra La’Shun Thomason, RDH has been a licensed Dental Hygienist for 28 years. She received her degree in Hygiene Science from Greenville Technical College and is a recent graduate of Clemson University. She has been married to Min. Allen Thomason, Jr. for 18 years, and this union has blessed them with 6 children and 5 grandchildren.

Student Assistant

ABBY CAMPBELL

Abby is 2020 Greenville High school graduate and native of Easley. She is currently attending Greenville Technical College in the dental program.