Our medical staff is committed to providing high-quality care to the community — and focused on your overall health. Learn more about who we are and what we do. Better health together begins with a connection and learning more about each other.

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Amy Quarre

Amy Quarre, PA-C

Amy is a Certified Physician Assistant with nearly 15 years of experience in the medical field.

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Anna Morency

Anna Morency, NP

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Beverly Mayer

Beverly Mayer, ANP

Beverly Mayer, an Adult Nurse Practitioner, has more than 30 years of experience as an RN and Nurse Practitioner.

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Bridgett Morris

Bridgett Morris, LVN

Bridgett brings more than 10 years of experience in health care, including working in the Emergency Room at Sierra Nevada Memorial Hospital and in private practice.

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Christina Lasich

Christina Lasich, MD

In addition to her responsibilities as Chief Medical Officer, Dr. Christina Lasich oversees the health center’s expanded substance abuse treatment services, especially for residents addicted to opioids such as prescription pain medications and heroin – a growing concern in the region and nationally.

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David Narita

David Narita, MD

Dr. David Narita, who provides care to adults and children, has extensive experience in primary care medicine in California and internationally. Dr. Narita is Board Certified in Family Medicine.

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Donna Tully

Donna Tully, PA

Donna Tully, a Physician Assistant, works in the Grass Valley health center in Urgent Care and Family Medicine.

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Doris Royer

Doris Royer

Doris has more than 15 years of experience counseling adults and adolescents with substance abuse disorders (SUD).

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Douglas Wagner

Douglas Wagner, MD

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Elizabeth Miltner

Elizabeth Miltner, DDS

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Jay Patt

Jay Patt, DC

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Jennifer Hays

Jennifer Hays, DMD

Dr. Jennifer Hays comes to Western Sierra from ACC Health in Albuquerque, NM, where she provided comprehensive mobile dental services for military personnel. Dr. Hays was awarded a Doctorate in Dental Medicine from the University of Pittsburgh in 2010 and a Bachelor of Science from UC Davis.

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Jenny Rivard-Voboril

Jenny Rivard-Voboril, RN

Jenny brings almost a decade of health care experience to Western Sierra.

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Joseph Lambert

Joseph Lambert, MD

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Juan Alberto Chavez

Juan Alberto Chavez, DDS

Dr. J. Alberto Chavez graduated from dental school at the National University of Mexico. He took the dental boards at Loma Linda University, California in 1996. Prior to relocating to Grass Valley, he practiced general dentistry in the Los Angeles area for 17 years.

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Justin Pfaffinger

Justin Pfaffinger, DDS

Dr. “Justin” received his Doctorate of Dental Surgery from the UCLA School of Dentistry in 2009, graduating with highest clinical honors.

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Kelly Miner-Gann

Kelly Miner-Gann, LCSW

Kelly is a Licensed Clinical Social Worker who has worked in the Behavioral Health field for more than 10 years.

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Kristen George

Kirsten George, PA

Kirsten George handles the health care needs of newborns to seniors. She joined Western Sierra in 2015.

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Kulvinder Boparai

Kulvinder Boparai, MD

Dr. Kulvinder Boparai has 25 years of extensive community clinic and internal medicine experience.

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Lora Lee Grutkowski

Lora Lee Grutkowski, FNP

Lora Lee is a Family Nurse Practitioner and medical and emergency care provider at the Downieville site clinic.

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Michael Curtis

Michael Curtis, MD

Michael E. Curtis, MD received his advanced training from the University of Pittsburg Medical School in 1983 and participated in the Residency Training Pediatrician program at the Naval Hospital San Diego.

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Michael Darius

Michael Darius, PA

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Monte Penner

Monte Penner, MD

Dr. Penner did his medical training at Loma Linda University in Southern California and has been in general practice (seeing patients of all ages) for almost 30 years.

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Natalia Orozco

Natalia Orozco, FNP

Natalia Orozco, a Family Nurse Practitioner, has more than five years of health care experience.

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Polly Conley

Polly Conley, PNP

Polly joins Western Sierra from 14 years of private practice in Roseville. She has a Masters in Pediatrics from University of California, San Francisco and she received her BSN from Brigham Young University.

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Ramesh Pundi

Ramesh Pundi, MD

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Robert Plantz

Robert Plantz, PA

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Sarah Boyett

Sarah Boyett, LCSW

Sarah is a Licensed Clinical Social worker who has over 8 years of experience working in the Community Mental Health field. She specializes in working …

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Sarah Woerner

Sarah Woerner, MD

“Dr. Sarah” grew up in Nevada City, has been a practicing pediatrician since 1982 and speaks fluent Spanish.

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Seson Kahn

Seson Kahn, FNP

Seson Kahn, a Family Nurse Practitioner, has more than 10 years of experience in health care.

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Susan Shapiro

Susan Shapiro, MD

Dr. Susan E. Shapiro – who has practiced medicine for more than four decades, including 20 years in Auburn – has joined Western Sierra Medical Clinic as a primary care provider.

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Tetsuya Shirasuka

Tetsuya Shirasuka, DDS

Natalia Orozco, a Family Nurse Practitioner, has more than five years of health care experience.

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Thomas Jacobs

Thomas Jacobs, DPM

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Trish Hartman

Trish Hartman

Patricia “Trish” Hartman provides substance abuse counseling at Western Sierra’s Placer County health centers in Auburn and Kings Beach (Tahoe).

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Zarlasht Fakiri

Zarlasht Fakiri, DO

Dr. Zarlasht (Zari) Fakiri is Board Certified in Internal Medicine, specializing in adult medicine.

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