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2025-2026 Resident Roster

Research Residents

Rachel Borthwell, MD

Hometown: Los Angeles

Undergraduate: UC Davis

Medical School: University of California, Los Angeles

Favorite thing about UCSF-East Bay: 

About Me: I love Art Museums/Gallery Openings 🖼 Traveling with my partner ✈️ AMAZING food, especially Sushi 🍣 Bowling 🎳 Rock Climbing 🧗‍♀️

rborthwell@alamedahealthsystem.org

Emily Cox, MD

Hometown: Seattle, WA

Undergraduate: Bucknell University

Medical School: University of Washington

Favorite things to do outside of the hospital:

Binging 2010s hit tv shows, going wine tasting, and napping obvi

If you weren’t a doctor, what would you be doing instead? 

I would be a professional dog cuddler

Favorite dessert?

Honestly any sweet treat but I love German chocolate cake and mild & cookies Ben & Jerry’s.

emicox@alamedahealthsystem.org

Willow Frye, MD MPH

Where did you grow up?

Bourbonnais, IL

Undergraduate: Swarthmore College

Medical School: UC Berkeley/UCSF Joint medical program

Favorite things to do outside of the hospital:

Backpacking, gardening, learning the history of surgery, hanging with my kittens, and going to circus shows

If you weren’t a doctor, what would you be doing instead? 

Human-centered design research

Favorite dessert?

Ben & Jerry’s Americone dream

wilfrye@alamedahealthsystem.org

Alisha Heximer, MD

Hometown: Fowlerville, MI

Undergraduate: Cornell University

Medical School: University of Michigan

Favorite thing about UCSF-East Bay: 

About Me: My favorite things to do outside of the hospital are time with family and friends, ⏰ random and intermittent hobbies like dancing, various sports, 💃🏻 🧗‍♀️ 🏉 🥅🧘‍♀️🎼⚽️🏕 , board games ♟ and taking my dog on adventures outdoors 🛶 🥾

aheximer@alamedahealthsystem.org

Anna Huang, MD

Hometown: Houston, TX

Undergraduate: Vanderbilt University

Medical School: University of Chicago

Favorite thing about UCSF-East Bay: 

About Me: My favorite things to do outside the hospital are cooking/baking, photography, drawing, hiking 🧁📸🎨

anhuang@alamedahealthsystem.org

Jackelyn (Jacky) Moya, MD

Hometown: Elk Grove, CA

Undergraduate: UC Davis

Medical School: UCLA

Favorite thing about UCSF-East Bay: 

About Me: Outside of the hospital I like to
paint 🎨 go to comedy shows 🎭 spend time with family❤️, friends👯‍♀️, being with my two Maltipoos 🐩, trying out new restaurants 🍽 and shopping/thrifting for bargained gems 🛍🛒

jamoya@alamedahealthsystem.org

Henry Olivera Perez, MD

Hometown: Compton, CA

Undergraduate: UCLA

Medical School: University of Chicago

Favorite thing about UCSF-East Bay: 

About Me: My favorite things to do outside of the hospital are hiking , exploring new places, watching conspiracy theory shows, trying new food, making good food, being around good food, good food🌮🌯🍔🍳🍕🍲🫕🥘🥗

holiveraperez@alamedahealthsystem.org

Aryan Tabesh, MD

Hometown: Isfahan, Iran

Undergraduate: University of Washington

Medical School: University of Washington

Favorite thing about UCSF-East Bay: 

About Me: My favorite things to do outside the hospital are traveling, skiing , playing soccer, cooking and visiting breweries 🍺⛷⚽️🍢🍚🍝

atabesh@alamedahealthsystem.org

Ivana Vasic, MD

Home Country: Serbia

Undergraduate: University of Colorado

Medical School: University of Colorado

ivasic@alamedahealthsystem.org

Anna Vertido, MD

Hometown: Seattle, WA

Undergraduate: University of Washington

Medical School: Western Michigan University Homer Stryker

Favorite thing about UCSF-East Bay: The diversity of the patients that we get to work with every day!

About Me: I love trying new restaurants with my husband, watching scary movies, exploring the city, and cuddling with my cat

avertido@alamedahealthsystem.org

Annie Wong-On-Wing, MD

Hometown:

Undergraduate: University of Washington

Medical School: University of Washington

Favorite things to do outside of the hospital:

Skiing, hot yoga, lifting weights

If you weren’t a doctor, what would you be doing instead?

Baking!

Favorite dessert?

Chocolate

awongonwing@alamedahealthsystem.org