Staff Bios
Your SCUBA Diving Gateway to
Lake Tahoe!
Lake Tahoe
Meet Our In-Store Staff
Keith Chesnut  Name: Keith Chesnut        
Instructor Level: Course Director (Instructor Trainer)      
Instructor #:
9288 
Background: Started diving in 1968, logged over 14,300 dives to date. Instructor since 1975, Instructor Trainer since 1978, owner Sierra Diving Center since 1976, PADI District Director and IE Coordinator. TDI Instructor Trainer #5917, NAUI Instructor #4260 (inactive), DAN Instructor Trainer #282 (inactive), PSI Instructor #104.

Specialties Taught:
 
Instructor Trainer: 
PADI:  Altitude, Boat, Buoyancy, Deep, Digital U/W Photography, Dolphin Rebreather, DPV, Drift, Dry Suit, EANx, Emergency Oxygen, Equipment, Full Face Mask, Hunter, Ice, Multilevel, Navigator, Night,  Photography, Search & Recovery, Self-Reliant, Sidemount, Tec Sidemount, Videography, Wreck, Marine Life Injuries, PADI AED, PADI O2 First Aid

Emergency First Response:  CPR, First Aid & AED, Care for Children

PADI/DSAT: Tec Rec Trimix Blender, Tec Basic, Tec Diver 40, Tec 45, Tec 50,
Tec Trimix 45, Tec Trimix 65, Tec Trimix,


Ocean Reef:
Neptune Full Face Mask 

DAN: O2 First Aid, Hazardous Marine, REMO, BLS-CPR & FA,  BLS-Health Care Provider, Neuro,  DES,  D.E.M.P., Dive Medicine for Divers, Diving First Aid for the Professional Diver

TDI: Advanced Nitrox, Rebreather Instructor, Decompression Procedures, Extended Range Instructor, Helitrox Instructor, Trimix Instructor,  Advanced Trimix Instructor,  Nitrox Blender, Advanced Gas Blender, KISS Rebreather Instructor, TDI Tec Sidemount Instructor,

Instructor:  PADI Public Safety Diver Instructor, PSI Visual Inspector Instructor, PSI Valve Repair Technician Instructor, PSI Eddy Current Instructor, PSI Oxygen Cleaning Technician Instructor, BSA Merit Badge Counselor
  
Misc.:  IAST Certified Master Repair Technician, Aqualung Certified Master Technician, Scubapro Certified Master Technician, Certified Repair Technician for Apeks, Apollo, Aqualung, Atomic, AUP (Oceanic, Hollis, Aeris), Cressi, Dacor, Deep 6, Dive-Rite, Edge/Hog, Hollis Prism 2 & Explorer, Interspiro/AGA, Mares, NEX, Ocean Reef , OTS Guardian & Guardian Stealth, Poseidon, SAS Repair Technician, Sherwood, Seaquest, Submersible Systems, US Divers, Zeagle, Certified Cave Diver, Certified Trimix Blender, Bauer Compressor Repair Technician, Kiss Sport and Classic CCR Diver, PRISM CCR Diver, Evolution CCR Diver, PADI Elite Instructor Award Recipient, Gold Course Director

E-mail: keith@sierradive.com or kchesnut@nvbell.net

Curtis Mulkey Name: Curtis Mulkey
Diver Level:
IDC Staff Instructor
Instructor #: 417049

Background:
Started diving in 1994. Became an Instructor in 2019. Has approximately 2200+ open water dives.
Specialties Taught: Altitude, Deep Diver, Drysuit, EANx Diver, EFR, Emergency Oxygen Provider, Night, Peak Performance Buoyancy, Project Aware, PADI Tec 40, Wreck Diver,
Misc.:
 Aqualung Certified Repair Technician, Atomic Certified Repair Technician, Cressi Certified Repair Technician, Hollis/Oceanic Certified Repair Technician, PSI Valve Repair Technician, PSI Visual Inspector, Scubapro Certified Repair Technician, Zeagle Certified Repair Technician, PADI Elite Instructor Award Recipient
E-mail: curtism@sierradive.com


Keith Campbell Name: Keith Campbell
Diver
Level: Divemaster
Background: Started diving in 2016. Has 200+ open water dives. 
Specialties: 
Altitude, Boat, Deep, Drysuit, Emergency O2 Provider, Enriched Air, Equipment, Full Face Mask Diver, Night, Peal Performance Buoyancy, Sidemount,    
Misc.:
Aqualung Certified Repair Technician, Atomic Certified Repair Technician, Deep 6, Hollis/Oceanic Certified Repair Technician, NEX Certified Repair Technician, OTS Certified Guardian Technician, Scubapro Certified Repair Technician, PADI Tec Rec Trimix Blender, PSI Visual Inspector, PSI Valve Repair Technician, Zeagle Certified Repair Technician 
E-mail:
kcampbell@sierradive.com


James Beaver Name: James (Jim) Beaver
Diver
Level:
Advanced Open Water Diver
Background: Started diving in 1974. Has 160 open water dives. 
Specialties:
  
Misc.:
Aqualung Certified Repair Technician, Atomic Certified Repair Technician, Cressi Certified Repair Technician, Deep 6, Hollis/Oceanic Certified Repair Technician, NEX Certified Repair Technician, PSI Visual Inspector, PSI Valve Repair Technician, Scubapro Certified Repair Technician, Zeagle Certified Repair Technician 
E-mail:
JamesB@sierradive.com

Kyle Hodgekiss  Name: Kyle Hotchkiss
Diver
Level: Divemaster
Background: Started diving in 2022. Has 150+ open water dives. 
Specialties: 
Altitude, Deep, Diver Propulsion Vehicle, Drysuit, Emergency O2 Provider, Enriched Air Diver, Equipment Specialty, Master Scuba Diver, Night Diver, Self Reliant, Sidemount,   
Misc.:
Aqualung Certified Repair Technician, PSI Visual Inspector, PADI Tec Rec Trimix Blender 
E-mail:
KyleH@sierradive.com
Kai Huber  Name: Kai Hueber
Diver
Level: Open Water Diver
Background: Started diving in 2023. Has 10 open water dives. 
Specialties: 

Misc.:
PSI Visual Inspector,  
E-mail:
KaiH@sierradive.com
Mark Duncan Name: Mark Duncan
Diver
Level:
Master Scuba Diver
Background: Started diving in 2003. Has 1500 open water dives. 
Specialties:
Nitrox Diver, MK16 CCR Diver,   
Misc.:
PSI Visual Inspector, USN Dive Supervisor, USN SCUBA Diver, USN CCR Diver
E-mail:
MarkD@sierradive.com
Liam Vinkovich  Name: Liam Vinkovich
Diver
Level:
Advanced Open Water Diver
Background: Started diving in 2022. Has 60 open water dives. 
Specialties:
Night Diver  
Misc.:
PSI Visual Inspector,  
E-mail:
LiamV@sierradive.com
Kole Buckley Name: Kole Buckley
Diver
Level:
Advanced Open Water Diver
Background: Started diving in 2025. Has 20 open water dives. 
Specialties:
Drysuit Diver  
Misc.:
  
E-mail:
KoleB@sierradive.com

 
   

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Updated 5 January 2026