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Since 1934, Kern Medical has been training residents and
health care professionals in our community.

OB/GYN Residents

OB/GYN R4s

Trina Mariel Amog, MDTrina Mariel Amog, MD

Hometown: San Ramon, CA
Undergraduate: University of California, San Diego
Medical School: California Northstate University
Hobbies: Cheering for the Golden State Warriors, visiting farmers markets, stand up paddle boarding, trying new cuisines.


Courtney Cirks, MDCourtney Cirks, MD

Hometown: Los Angeles, CA
Undergraduate: University of California, Los Angeles
Medical School: Ross University School of Medicine
Hobbies: Cooking (+ eating), traveling, piano, golf; but I also LOVE watching reality TV and UCLA sports/Dodger baseball


Karina Grinberg, MDKarina Grinberg, MD

Hometown: McKinney, TX
Undergraduate: University of Texas at Dallas
Medical School: Ross University School of Medicine
Hobbies: Cooking and hosting, road-tripping, and working out.


Megan Haugland, MDMegan Haugland, MD

Hometown: Hollister, CA
Undergraduate: University of California, Davis
Medical School: Frank H. Netter MD School of Medicine
Hobbies: Cooking, playing board games, horseback riding, spin class, Netflixing with my dog Daisy


OB/GYN R3s

​​​​Vaana John, DOVaana John, DO

Hometown: Rancho Cucamonga, CA
Undergraduate: University of California, Irvine
Medical School: Western University of Health Sciences College of Osteopathic Medicine of the Pacific
Hobbies: Movies, plants and food!


Susan La, DOSusan La, DO

Hometown: San Jose, CA
Undergraduate: University of California, San Diego
Medical School: Des Moines University School of Osteopathic Medicine
Hobbies: Film photography, weight lifting, and cooking.


Polian Mac, MDPolian Mac, MD

Hometown: San Francisco, CA
Undergraduate: University of California, Santa Cruz
Medical School: Ross University School of Medicine
Hobbies: Taking my dog (Sawyer) on new adventures, water activities, trying new foods/recipes, bringing TV shows, dramas and true crime.


Jessica Roestenburg, DOJessica Roestenburg, DO

Hometown: Salt Lake City, UT
Undergraduate: University of Utah
Medical School: Rocky Vista University College of Osteopathic Medicine in Colorado
Hobbies: Baking cupcakes, hiking, fantasy fiction novels, playing videogames with my husband, and binge watching Netflix.


OB/GYN R2s

Anthony Ursua, DOAnthony Ursua, DO

Hometown: Tehachapi, CA
Undergraduate: California Baptist University
Medical School: Liberty University College of Osteopathic Medicine
Hobbies: Music, playing the cello, traveling, making charcuterie boards and choir directing!


Shelby Hamilton, MDShelby Hamilton, MD

Hometown: Belize
Undergraduate: Spring Hill College
Medical School: American University of the Caribbean
Hobbies: Baking sweet treats, cooking, and traveling to new places


Anna Shannon, DOAnna Shannon, DO

Hometown: Parker, CO
Undergraduate: University of California, Santa Cruz
Medical School: Ross University School of Medicine
Hobbies: Taking my dog (Sawyer) on new adventures, water activities, trying new foods/recipes, bringing TV shows, dramas and true crime.


Lily Kwong, DOMing Lai “Lily” Kwong, DO

Hometown: Hong Kong
Undergraduate: UC Santa Cruz
Medical School: Touro University of California
Hobbies: Cooking, hiking, teaching, collecting souvenirs from around the world, learning about Chinese history, calligraphy, binge-watching YouTube and doing skincare


OB/GYN R1s

Kayce Singer, DOKayce Singer, DO

Hometown: Palm Springs, CA
Undergraduate: University of Nevada Las Vegas
Medical School: Western University of Health Sciences, Oregon
Hobbies: Hiking, nature photography, traveling, camping, water activities, skydiving, reading and napping with my cat (Albus)


Ana Alfaro, DOAna Alfaro, DO

Hometown: Keizer, OR
Undergraduate: Linfield College, Oregon
Medical School: Rocky Vista College of Osteopathic Medicine Southern Utah
Hobbies: In love hiking and traveling! I also love to try new things. I most recently started playing golf and finished my first triathlon!


Jessica Vu, DOJessica Vu, DO

Hometown: San Jose, Ca
Undergraduate: University of California, San Diego
Medical School: Touro University of Nevada, College of Osteopathic Medicine
Hobbies: Running, Hiking, Snowboarding and Scrapbooking


Vidushi Razdan, DOVidushi Razdan, DO

Hometown: Morgan Hill, CA
Undergraduate: University of California, Davis
Medical School: California Health Sciences University
Hobbies: Hiking, Running, trying new food and traveling