Staff and Faculty

Rio Vista Administrative Staff

Robert Guynn


I am honored to be part of the Rio Vista family. I grew up in the San Fernando Valley and attended UCLA as an undergraduate where I received my Bachelors degree. I later received my Multiple Subjects Teaching Credential with a Single Subject K-8 math certification from the University of Redlands. Returning to school, I earned my Masters degree at Concordia University, Irvine. Before coming into education in 2001, I spent 20 years in the business world working in the retail, distribution, and manufacturing sectors. I began my career teaching fourth through sixth grades at an elementary school in the High Desert in California. Seeking an opportunity in leadership, I moved districts to become an elementary school principal and then moved into a district administrator position within the same district. When the opportunity arose for me to join the Rio School District in 2013, I accepted the position as Rio Plaza Principal and later Rio Del Mar Principal. Away from school I enjoy spending time with family, being outdoors, cycling, and riding my Harley. I am always seeking out new places to eat and experience and especially love to travel. Over the years, our family loved road trips as we enjoyed traveling through “small town USA” and seeing the many sights this country has to offer. My wife and I tried something new and took our first motorcycle road trip to Canada in 2017 and thoroughly enjoyed the open road experience. We have also been fortunate to travel internationally to Mexico, Canada, China and Italy.

Leslee Cybulski

Assistant Principal

Connie Alvarado

Office Manager

Jazmine Lopez

Student and Family Support Specialist

Olivia Villasenor

Student and Family Support Specialist

Rio Vista Teachers

Patricia Amezcua

Language Arts 7/8

Christopher Bond

ELD/ELA Int 6/7/8

Nicole Boucher

  • Teaching since 2011
  • Rio teacher since 2019
  • BA, University of California, Santa Cruz. M.Ed, University of California, Santa Barbara, MA, University of Iowa
  • I enjoy being outside enjoying nature.

Kiersty Briner


Luzmaria Campos


Mireya Chavez

  • Teaching at Rio since 1999
  • Rio Vista teacher since 2016
  • BA, Chicano Studies and Spanish; University of California Santa Barbara
  • Multiple Subject Teaching Credential; Cal State University Northridge
  • Single Subject Teaching Credential; Cal State University Northridge
  • Master of Education in Educational Administration; Grand Canyon University
  • Bilingual Authorization BCLAD (Bilingual, Cross-Cultural, Language and Academic Development)

I was born and raised in Oxnard, CA. In my time off I enjoy watching sports, listening to music, dancing, attending concerts and spending time with my husband and our four wonderful children.

Favorite Quote:
“It’s good to be important, but it is more important to be good.”
“Es bueno ser importante, pero es mas importante ser bueno.”

Ryan Delaway

7th Grade Social Studies
  • Teaching since 2012
  • Rio teacher since 2012
  • BA History: CSU Channel Islands; Teaching Credential: CSU Channel Islands; MA Teaching: Grand Canyon University
  • I enjoy seeing my students learn and grow academically, emotionally, and socially. I also enjoy coaching the Cheerleading team, and attending as many of our Rio Vista sporting events as I can squeeze into my year.

Adam Erickson

8th U.S. History, 7th Science, and ASB
  • Teaching since 2010
  • Rio teacher since 2012
  • B.A., History & English, California Lutheran University (2009); M.Ed., Teacher and Curriculum Leadership, California Lutheran University (2011); M.A., History, California State University Northridge (2015)
  • I enjoy camping and boating in the desert on Lake Mohave, playing video games, hanging out with friends and family, and helping my ASB Leadership class plan awesome school events!

Kim Fairchild

6th Grade ELA/SS
  • Teaching since 1997
  • Rio teacher since 1997
  • B.A. Political Science from Cal State Northridge; Multiple Subject Teaching Credential and M.A. with emphasis on curriculum and instruction from Cal Lutheran University
  • I enjoy teaching, hiking, riding my horse, reading and travel.

Mary Fleming

6th Grade Language Arts/SS
  • Teaching since 2010
  • Rio teacher since 2013
  • UCSB BA Liberal Studies; Western Governors University(Multiple Subject)
  • I enjoy getting my kids motivated and interested in what they are learning in class.

Augustine Garcia


I came to Rio Vista Middle School in the Fall of 2012, and deeply enjoy my profession. I always endeavor to assure my students are cared about and mentored through their middle school years, while also teaching lifelong, real-world academic and research skills.


  • B.A. – History & English, California Lutheran University (2009)
  • M.Ed. – Teacher & Curriculum Leadership, CLU (2011)
  • M.A. – History, CSU Northridge (2015)

Lisa Herrera

8th Grade ELA
  • Teaching at Rio School District for 25 years
  • B.A. English, UCSB
  • Single Subject English Teaching Credential, CSUN
  • Proud Graduate of the Rio School District-attended Rio Plaza, Rio Real, and Rio del Valle

I enjoy reading, cooking, traveling, and spending time with my family and friends.

Nicole Jovel

SAI 6/7

Tyler Larson

7th & 8th Grade SS
  • Teaching since 2013
  • Rio teacher since 2014
  • Bachelors in History and Single Subject Credential – CSU Channel Islands Masters in History with Emphasis in Higher Ed. – Grand Canyon University
  • I enjoy surfing or mountain biking almost everyday after the school day ends. A reason why I chose to teach History is because by teaching History, I get to teach every subject!

Daryl Lewis-Abriol

Math/Science/ELD – 6
  • Teaching since 2000
  • Rio teacher since 2000
  • I attended Fresno State University, and received my credential from California State University Northridge.
  • I enjoy playing and traveling with my family, camping, paddle boarding, mountain biking, and playing music.

Kim Lopez

  • 9th year at Rio Vista
  • B.S. Kinesiology emphasis in PE (SDSU)
  • Teaching Credential: Physical Education (CSUN)
  • M.S. Educational Counseling (University of La Verne)
  • Pupil Personnel Service (PPS) Credential (University of La Verne)

Melanie Martin

7th Grade ELA
  • B.A. in English from Cal State University, Long Beach
  • Masters in creative writing from Southern Illinois University, Carbondale.
  • One of her passions is traveling, and she had the opportunity to study abroad in Galway, Ireland while completing her masters.

Ms. Martin comes from a family of educators including her dad and older sister, and she believes that public education, especially, is where teachers can truly make a positive impact on young lives. Prior to earning her credential in English in 2010, Ms. Martin taught English at community colleges in Southern California. She has had the pleasure of teaching 7th grade language arts at Rio Vista for 9 years and looks forward to many more.

Hernan Martinez

Physical Education
  • Teaching since 2000
  • Rio teacher since 2006
  • California State Northridge Major-Liberal Studies Minor-Anthropology Concentration-Earth Science
  • I enjoy spending time with my family and coaching my kids’ sports teams. I am also a proud graduate of Rio Plaza Elementary and Rio Del Valle Middle School.

Wendy McCafferty

  • Teaching since 2004
  • Rio teacher since 2007
  • Oxnard College, Azusa Pacific, California State University, Bakersfield
  • I enjoy learning and teaching.

Reyhan Mehrazd

Math 7/8

Amy Murphy

8th Grade Science & Robotics
  • Teaching since 2001
  • Rio teacher since 2001
  • B.S. Environmental Science from CSU Fresno, M.S. Science Education from CSU Northridge
  • I enjoy paddle boarding, hiking, biking and gardening.

Teresa Ogella

  • BM in Classical Guitar and a Minor in Spanish from UCSB.
  • I also have a teaching credential and a MA in Education from Antioch University.

While in college, I studied abroad in Mexico and Spain. I have been a teacher at Rio Vista since 2014 and I live in Oxnard with my cat, Twilight, and dog, Roxy. I love to travel, play my guitar, play golf, garden, make art, go on hikes, and watch comedy shows.

Cameron Ohl

Physical Education
  • Teaching since 2001
  • Rio teacher since 2005
  • B.S. Northern Arizona University Major: Physical Education Minor: Athletic Coaching M.S. Grand Canyon University Curriculum and Instruction
  • I enjoy running, sports, backpacking and spending time with my family.

Ronda Plomteaux

6th Grade Math/Sci
  • Teaching since 2005
  • Rio teacher since 2015
  • AA Associated Arts Degree from Ventura/Oxnard College, BA Liberal Arts Degree from California State University of Channel Islands, and MA Masters in Education with an emphasis in Science from Azusa Pacific University.
  • I enjoy the beach.

TeriLynn Regalado

Visual & Performing Arts
  • Teaching since 2001
  • Rio teacher since 2007
  • B.A. & M.A. in Music/Opera, San Francisco Conservatory of Music; Teaching Credential, Cal Lutheran University
  • I enjoy being a mom to my 3 kids, singing, teaching, going to the theater, traveling and relaxing by the pool. My Music program consists of Choir, Piano, Guitar, and Drama. I am also the Musical Director for our annual Rio School District Spring Musicals. I am a Rio Schools alumni.

Vicki Rios


Heriberto Rojas

6th Grade ELA/SS
  • 15 Yrs in Rio District
  • 10 Yrs at Rio Vista
  • B.A. History & Sociology, UCSB
  • Teaching Credential, CSUCI
  • M.A. with School Counseling Credential, APU

My goal as an educator is not only to teach students, but more importantly, to instill in them the desire to become lifelong learners!

Cesar Ruiz

8th Grade Science
  • Teaching since 2012
  • Teaching at Rio Vista since 2013
  • B.A. Poly Sci, CSUN
  • Social & Foundational Science Credentials, CLU

I have always enjoyed science since I was a child growing up in Nyeland Acres and winning science fair competitions at Rio Real! It feels good to be teaching in a school district where I once was a student. I enjoy hiking, swimming, and spending time with friends and family.

Kristin Snell

7th Grade Math
  • Teaching since 2003
  • Rio teacher since 2003
  • AA from Ventura College, BA Liberal Studies from Cal State Northridge, Masters in Education from California Lutheran University
  • I enjoy reading, puzzles and card/board games.

Josh Steiner

Physical Education
  • Teaching since 2008
  • Rio teacher since 2010
  • Bachelor of Science in Kinesiology with an emphasis in Physical Education
  • I enjoy spending time with my family. I enjoy playing outside with my boys, traveling, spending time with family, and coaching baseball and football.

Catherine Stewart

8th Grade SS
  • Teaching since 1986
  • Rio teacher since 2000
  • M.A. Social Science; B.A. Political Science University of Iowa
  • I enjoy working with middle school students and teaching literacy skills. I have traveled to nearly all 50 states with my wonderful family.

Gertraud Tomlinson

  • At Rio Vista since 2015 – SAI Teacher
  • 3 Years at Banyan Elementary – Intervention Specialist
  • B.A. International Business – CSUF
  • Education Specialist Credential, CSUCI
  • I enjoy helping students become critical thinkers, strong speakers, good readers, thoughtful writers, attentive listeners and stronger mathematicians.
  • In my spare time, I love spending time with my family and traveling.

Doug Williamson

Visual & Performing Arts- Director
  • Teaching since 2003
  • Rio teacher since 2013
  • Bachelor’s Degree in Music Performance, California State University, Northridge;  Credential work completed through University of California, Santa Barbara; CREDENTIALS Single-Subject in Music (K-12), State of California, completed August 2004 Professional Clear Credential, State of California, completed June 2006 Initial Teaching License (Music k-12), State of Oregon, completed August 2007
  • I enjoy playing musical instruments, swimming, skiing, tennis, volleyball, and helping others.
  • I try to teach and instruct the “whole” student. My students strive to learn up to the national Music standards for grades 6-8 and they also learn important life skills along the way. In my classes I stress skills and qualities such as team work, responsibility, respect, honor, and civility. I try and prepare my students, to the best of my ability, for the university and college experience. I hope that after my students graduate from my program they will go out into the “real world” and put into practice what they learned in my classes… how to be musically expressive and how to be a productive and responsible member of society.

Rio Vista Resource Staff

Myriah Bibian


Victor Anaya




Denise Woznichak


Julie Maria


Sandra Estrada


Amy Prado

After School Program Specialist

After receiving a B.S. degree from Purdue University, I took a vacation to California. Once here, I immediately decided to stay!!

  • After getting married, we eventually landed in Oxnard.
  • The Rio District has educated my children and both attend California State Universities.
  • I have worked 3 years as an After School Program Specialist and truly enjoy being a part of this wonderful team.

Rio Vista Support Staff

Maria Alfaro

Food Service Manager

Elizabeth Aguilera

Food Service Worker

Brandon Henschel

Food Service Worker

Norma Jasso

Food Service Worker

George Thompson


Juan Del Rio

Night Custodian

Maria Caudillo Bravo

Night Custodian

Elias Batis

Campus Supervisor

Ricardo Ortega

Campus Supervisor

Martha Gonzalez

Campus Supervisor

Ray Allen

Campus Supervisor

Maria Alvarez

Campus Supervisor

Patty Mora

Campus Supervisor

Judy Kaneshiro

Instructional Assistant

Jaleh Samimi

Instructional Assistant

Jessica Lopez

Instructional Assistant

Jessica Lopez

Instructional Assistant

Martin Vargas

Instructional Assistant

Lindsey Flowers

Instructional Assistant

Priscilla Morales

Instructional Assistant

Stephanie Chavarria

Instructional Assistant

Cesar Hernandez

Instructional Assistant

Roi Maddox

Instructional Assistant
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