What kind of dentist is Gregory Leonard Koontz?

Gregory Leonard Koontz is a periodontist practicing in Oceanside, CA.

Is Gregory Leonard Koontz a licensed dentist?

Gregory Leonard Koontz holds a dental license with status: Active. License number 28850. Valid until August 31, 2027.

Gregory Leonard Koontz, Periodontist in Oceanside, CA

Other dentists in Oceanside

Thomas Michael Baransky Joseph N Reardon Jeremiah Jason Sparks Dean H Saiki Omar Dwider Rajee Kaur Jeffrey Shelton Davee Maxmillian Chambers

See all dentists and offices in Oceanside, CA →

Listed because their federal registry record places them in Oceanside. This is not a statement that they work together.

Last verified by WhoIsMyDentist: October 6, 2026. Sourced from the U.S. federal NPI registry and state dental board licensing (federal record dated July 12, 2024). If this looks outdated, use "Report an issue" on this profile to suggest a correction.