Our Leadership Team

  • A woman with short dark hair, wearing a white top and a beaded necklace, standing in front of voting ballots.

    Margie Chen

    Statewide Leadership Team, New Member Welcome

    Margie Chen is a retired obstetrician-gynecologist in San Francisco, CA.

  • A woman with long dark hair smiling outdoors.

    Hina Fullar

    Statewide Leadership Team, Advocacy Campaign Team, New Member Welcome Team, Culture Club

    Hina Fullar is an outpatient psychiatrist in Walnut Creek, CA.

  • A woman in a white lab coat holding a sign that says 'Climate change is the most powerful social determinant of health. Climate policies are health policies,' in a medical examination room.

    Ashley McClure

    Statewide Leadership Team

    Ashley McClure is a primary care physician in Oakland, CA. She is CHN’s co-founder and Executive Director.

  • A woman with black hair smiling and wearing a dark top, against a plain white background.

    Brenda Nuyen

    Statewide Leadership Team

    Brenda Nuyen is a comprehensive ophthalmologist in Los Angeles, CA.

  • A smiling middle-aged woman with short dark hair, wearing a pink shirt and denim jacket, outdoors at sunset with tables, umbrellas, and other people in the background.

    Lisa Chang

    Statewide Leadership Team, Advocacy Campaign Team Coach

    Lisa is a retired ophthalmologist and lives in Alamo, CA.

  • Close-up of a young woman with long wavy hair smiling outdoors with sunlight and yellow and green leaves in the background.

    Whitney Villa Greswold

    Statewide Leadership Team

    Whitney Villa Greswold has worked in health and sustainability sectors. She is Climate Health Now’s Director of Operations and Development

  • Amanda d'Almeida

    Director of Member Engagement/New Member Welcome Team

    Amanda is a family and community medicine physician on the ancestral and unceded territory of Tongva/Gabrielino People, also known as Los Angeles

  • A middle-aged man wearing a beige cap, orange vest, and a gray shirt, hiking in a natural outdoor setting with blurred trees and grass in the background.

    Bill Pevec

    Healthcare Sustainability Fellowship Coach

    Bill is a retired professor and chief of Vascular Surgery at UC Davis, located in Sacramento, CA.

  • Close-up of a smiling woman with brown hair, wearing a blue dress with white flower patterns, against a gray background.

    Pam Lee

    Healthcare Sustainability Fellowship Coach

    Pam Lee is an infectious disease physician in Torrance, CA.

  • A woman smiling while wearing a large woven sun hat outdoors near water, with a hill in the background.

    Ros Harder

    New Member Welcome Team, Culture Club Team

    Ros Harder is a medical social worker in Oakland, CA.

  • Woman with short brown hair and sunglasses smiling, sitting in a garden with pink and blue flowers.

    Michelle Fontana

    Advocacy Campaign Team

    Michelle Fontana, RN is a Practice Director in primary care and lives in Berkeley, CA

  • A woman with short gray hair and glasses smiling outdoors, wearing a gray sweater with large decorative buttons over a teal turtleneck, against a background of blurred autumn-colored trees.

    Wendy Bernstein

    Advocacy Campaign Team Chair

    Wendy Bernstein is a community psychiatrist and educator working from Berkeley, California. 

  • A smiling man wearing a gray New York Yankees cap, a black quilted jacket, and a stethoscope around his neck standing outdoors in a mountainous area with trees and snow-capped peaks in the background.

    Keegan Bowers

    Advocacy Campaign Team

    Keegan is an East Bay Pediatrician and UCSF EaRTH Center Reach Fellow, located in Berkeley, CA

  • A smiling man with gray hair, wearing a suit jacket and a light blue shirt, outdoors with green foliage in the background.

    Tony DeRiggi

    Healthcare Sustainability Fellowship Coach

    Tony DeRiggi is a retired pediatrician in Sacramento. 

  • Smiling woman with long brown hair wearing a maroon graphic T-shirt indoors

    Rachel Abbott

    Advocacy Campaign Team Chair

    Rachel is a Family Medicine physician in San Diego.

  • Portrait of a smiling woman with long dark hair wearing a gray blazer in an arched hallway

    Mayukha Talinki

    CHN Clean Heat Campaign Liaison

    Mayukha Talinki is a pre-med student at UCLA in Los Angeles.

  • Smiling woman wearing a red plaid shirt and pink Stanford baseball cap outdoors on a sunny hillside

    Chelsea Young

    Advocacy Campaign Team

    Chelsea Young is a psychiatrist in Marin County

  • Smiling woman wearing a striped shirt posing in front of a sunny ocean beach

    Angela Geronimo

    Social Media

    Angela has a background in Public Health and is Climate Health Now’s Social Media Manager.

  • Smiling young man with curly hair wearing a UCLA quarter-zip sweatshirt outdoors

    Kevin Briseño

    Hyperscale Data Center Working Group

    Kevin Briseño is a physiology and environmental science student at UCLA. 

  • Rachel Gottlieb

    Advocacy Campaign Team

    Rachel Gottlieb is a Family Medicine Physician in Santa Clara County.

Our Advocacy Advisory Team

  • Smiling man wearing glasses and a red, blue, and white plaid shirt outdoors

    Jason Pfeifle

    Center for Biological Diversity

  • Smiling woman wearing glasses, a black blazer, and a light blue blouse against a gray background

    Elise Wallis

    American Lung Association

  • Smiling man with a curled mustache and beard wearing a blue suit jacket outdoors

    Jose Torres

    Building Decarbonization Coalition

  • Bearded man wearing a white shirt with colorful embroidered trim outdoors in a dry landscape.

    Cesar Aguirre

    Central California Environmental Justice Network

  • Bill Magavern

    Coalition for Clean Air

  • Professional headshot of a smiling woman with curly brown hair, red lipstick, and a black shirt against a white background

    Martha Dina Argüello

    Physicians for Social Responsibility - Los Angeles

  • Smiling woman wearing glasses and a burgundy top outdoors in a sunlit garden

    Laura Neish

    350 Bay Area Action

  • Smiling woman with long wavy blonde hair wearing a black top in front of a green leafy background

    Allison Hilliard

    The Climate Center

Logo of The Medical Society Consortium on Climate & Health, featuring a caduceus with a green leaf intertwined.

Climate Health Now is the California state affiliate of the Medical Society Consortium on Climate & Health