Our Team

A team of dental professionals dedicated to providing you with next-level dental care.

Yolanda Mangrum, DDS, MAGD

"Live wisely, love well, and serve greatly."

These words are Dr. Mangrum’s vision statement, and their sentiment has guided the direction of her life, career, and dreams, beginning with her pursuit of excellence in education, her work as a community leader and teacher, and the continued shaping of Petaluma Dental Group to be an innovative, eco-friendly, patient-centered dental practice. 

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Thomas Dembski, DDS, FAGD

Although Dr. Dembski has been a faculty dentist and graduate instructor at the UCSF School of Dentistry for 11 years, what he finds most fulfilling are his relationships with his patients.  He loves restoring the smiles (and overall health) of people who come to the PDG office, and it gives him a great sense of purpose to coordinate each person’s care so they’re comfortable and have a plan that works for them.

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Rick Korman, DDS

For Dr. Rick Korman, treating his patients isn't just a matter of moving on to the next appointment — he enjoys creating a comfortable environment and believes a caring, personalized approach is essential to diminish fear and ensure a pleasant experience for all.

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Timothy D. Irish, DDS, MSD

From his days as youth living in Novato, complete with buck teeth and crowding, Dr. Irish aspired to become an Orthodontist.

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Logesh Swayamprakasam, BDS, MPH, MS

Dr. Logesh Sway has dedicated his education and career to the pursuit of excellence in periodontics (gum disease), implants, and sedation dentistry. After graduating from dental school in 2003, he pursued further education in periodontics at the University of Illinois at Chicago, where he won numerous honors and awards including Young Investigator award for his research on wound healing.

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Dr. Robert H. Lund, DDS, MS

Dr. Lund is an innovator and dental specialist who has practiced endodontics in Beverly Hills and Valencia, CA for over thirty years. He is the inventor of two F.D.A. approved endodontic products, and is launching an endodontic lecture series at Esthetic Professionals Dental Education Center in Tarzana CA.

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Dr. Rushang S. Patel, DDS

Dr. Patel is known for creating a comfortable, compassionate environment for his dental patients while providing state-of-the-art dental care with a minimally invasive treatment philosophy.  His approach not only improves patients’ outcomes, but their overall experience in the dental chair.

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Dr. Ephraim Aklilu, DDS

Dr. Ephraim Aklilu is a highly skilled Oral and Maxillofacial Surgeon with advanced training in all oral surgical procedures of the oral cavity and teeth, including bone replacement surgeries, and complicated surgical implant cases as well as safe and gentle sedation administration.

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Dr. Jennifer Watters, DDS, FICOI, DNDBA 

Dr. Watters began her dental career working as a dental assistant with a focus of becoming a dental hygienist—she worked with a group of periodontists that changed her career focus, after a few short months of assisting, she knew that she needed to become a periodontist to help save teeth.

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Angela Brazil

Registered Dental Hygienist

Shelley Miller

Registered Dental Hygienist

Wendy St. Cyr

Registered Dental Hygienist

Mayra Echeverria

Registered Dental Assistant EF

Catherine Winters

Registered Dental Hygienist

Katie Withington

Registered Dental Hygienist

Katie Robb

Clinical Director

Ericka Pulido

Registered Dental Assistant EF

Christopher Mangrum

Registered Dental Assistant

Amy Favia

Registered Dental Assistant

Nancy Zawaneh

Dental Assistant

Winnie Castro

Clinical Assistant

Andrea Solis

Dental Assistant

Erma Nesmith

Dental Assistant

Cathie Lopez

Treatment Coordinator

April Reynolds

Hygiene Coordinator

Araceli Jara

Dental Assistant

Debbie Ulicny

Insurance Coordinator

Darby Charles

Visual Production

Regina Panelli

Human Resources

Janice Leach

Office Support

Celeste Dobbins

Creative Director 

The PDG Tooth Fairy

“Clean, efficient, friendly, very informative and adorable options. Thank you!”

- Madelyn C.