Dr. Jeff McNairy, Psy.D., MPH
Chief Medical Officer
As the Chief Medical Officer at Rythmia, Dr. McNairy oversees all clinical operations and medical protocols. With over 25 years of experience in the healthcare and mental health fields, he ensures that every guest receives the highest standard of specialized, compassionate care in a safe, medically supervised environment.
Team Composition & Scale
This section illustrates the structural balance of our active team. A core pillar of the Rythmia safety protocol is maintaining a robust medical and nursing leadership tier to oversee and support our expansive clinical and facilitation staff.
Unlike unregulated retreats, the Rythmia Costa Rica employees are structured like a professional medical clinic. Our staff-to-guest ratio ensures that there is always a licensed medical professional within immediate reach during all clinical and ceremonial activities.
Interactive Staff Roster
Browse our comprehensive registry. Search by name or credential, or filter categories to isolate clinical teams from medical leadership.
Ariana Cabalceta, RN
Manager GS
Marco Barrantes, MD
GS Supervisor
Ingrid Apolo, RN
Clinical Support Specialist
Johanna Nelson, RN
FINANZAS
Lidia Varela, MD
FINANZAS
Hillary Gonzalez
CLINICA
Dayana Rodriguez
Clinical Operations Manager
Ronny Pizarro
HOLISTICO
Nestor Colmenares
Holistico
Adriana Soto
Supervisora HK
Byron Murillo
SUP TRANSP
Greivin Quiros
TRANSP
Eribel Hernandez
Medical Administrative Liaison
Carolina Alzuarde
LP MANAGER
William Cordero
MUSICO
Alejandra Chinchilla
Holistico
Esteban Nuñez
GS
Eduardo Diaz
Medical Support Staff
Yeral Gutierrez
Facility Compliance Officer
Oldemar Gomez
MANTENIMIENTO
Frequently Asked Questions
Common questions regarding the Rythmia medical team and facilitation staff credentials.
Is the Rythmia staff medically licensed?
Yes. The core Rythmia medical team consists of licensed Medical Doctors (MDs) and Registered Nurses (RNs) whose credentials are authenticated by the Costa Rican Ministry of Health and their respective medical boards.
What is the staff-to-guest ratio?
During all clinical and ceremonial events, Rythmia maintains a strict 1:4 staff-to-guest ratio. This ensures that every participant has immediate access to our clinical facilitation team and medical oversight.
Who oversees the safety protocols?
Our Chief Medical Officer and lead Staff Physicians manage all medical intake screenings, pharmacological audits, and emergency response training for all Rythmia Costa Rica employees.
Are facilitators trained in emergency response?
Absolutely. In addition to our dedicated medical team, all members of the clinical and facilitation team undergo mandatory, continuous training in first aid, CPR, and advanced psychological integration.
The Rythmia Standard
Every member of the Rythmia team undergoes rigorous background checks and continuous training in emergency response, psychological integration, and pharmacological safety. We operate strictly under the clinical protocols of the Costa Rican Ministry of Health.
Official Verification
Verify credentials of any staff member or view our 2026 Audit.