Clinical Faculty

  • Denise Ammon, MD

    ASSISTANT FACILITY MEDICAL DIRECTOR

    Medical School: Tulane University School of Medicine, New Orleans, LA

    Residency: Kings County Medical Center, Brooklyn, NY

    Hi, my name is Denise Ammon and I'm the AMD for Joes! I go by Dr Ammon, DAMMON, Denise, DNyce, Queen of the Night Shift, BB (story for another time). Born and raised in the Bay Area but did Medical School in N'awlins (Tulane) and Residency in Brooklyn at Kings County. My main interests in Emergency Medicine besides providing the best care to my patients include critical care, operations, wellness, and women in medicine. My motto is ABD... always be discharging but that's sometimes hard at Joes because our patients are SICK. My other motto is work hard, but play harder!

    Outside interests when I'm not working include dogs (RIP Nola), traveling, wine, good eats, more wine, outdoors, some more wine, reality TV, winning social media contests and SLEEP.

  • Juliana Thong, DO

    ULTRASOUND FELLOW

    Hometown: Mukilteo, WA

    Undergraduate: Brigham Young University

    Medical School: Pacific Northwest University of Health Sciences

    In my former life, I majored in studio art and was a graphic designer. I found my love for EM as a volunteer in the ED, then quit graphic design to be an ED clerk and tech. I’m passionate about social issues in EM, global health, and critical care. When not at the hospital, you can find me with my dog, friends, or family hiking, hunting for good food, painting, or traveling.

  • Anne Walker, MD, FAWM, DiMM

    WILDERNESS MEDICINE

    Medical School: St. George’s University, Grenada

    Residency: University of Maryland, Baltimore, MD

    Fellowship: Stanford University Medical Center, Palo Alto, CA–Wilderness Medicine

    I’m Dr. Walker! I have been a staff physician for multiple ultramarathons in austere locations around the world. I also have a special academic interest in altitude medicine as well as environmental injuries.

    In my spare time you can find me backpacking, biking or hiking with my black lab.

  • Kandria Ledesma, MD

    ULTRASOUND

    Medical School: Medical school: American University of Antigua

    Residency: St. Joseph’s Medical Center

    Fellowship: Ultrasound at Northshore University/Long Island Jewish

    East coast born, West coast trained. I enjoy the California fresh produce and the lack of humidity, but you will not find me eating a West coast pizza or bagel.

    If I’m not in the emergency department, I am probably running a half marathon/marathon, at a music festival, hanging out with my cat-dog Koda and fiance Jordan, or napping while watching Netflix/Hulu.

    My professional interests include ocular and lung ultrasounds, QA, and also trying ot get better at VexUS.

  • Doug DeMartinis, MD

    Medical School: University of California , Irvine

    Residency: San Joaquin General Hospital

    One of our original clinical faculty at St Joe’s and a true legend in EM. He is a deep well of EM knowledge and experience and someone anyone can turn to for advice and difficult cases. Always a kind word and pearls of wisdom.

    Doug is also our Cerner Guru, our guy for all the tips and tricks to navigate our tricksy EMR.

  • Zachary Haberman, MD

    Medical School: University of Southern California, Keck School of Medicine, LA, CA

    Residency: LA County+USC Medical Center

    I grew up in Concord, Massachusetts, but after watching the hit TV show The OC in high school, I decided that Cali life was for me and went to Pomona College, where I played outfield on the baseball team and majored in Neuroscience. Realizing I missed the snow, I then accomplished one of my life goals of being a ski bum and moved to Aspen, CO and worked as a medical tech at the bottom of the ski mountain. Sometimes dreams take sacrifices: the few months prior to my job as a "SkEMT", I made ends meet working as a Subway Mascot and dressed up as a giant sandwich, giving away "Buy One, Get One Free" 6 Inch Sub coupons outside of the store. Next, I moved back to SoCal and went to USC for med school and LA County + USC for residency. Finally, I found the perfect mix of sun, snow and awesome people, moving up north to work at Joe's.

    Outside of work, you can find me catching first chair on a powder day in Tahoe, cheering on the Patriots and Trojans, traveling off the beaten track, and discovering the best cheap eats the Bay has to offer.

  • Douglas Malcolm, MD, JD

    Medical School: University of Utah School of Medicine

    Residency: Kern Medical Center, Bakersfield, CA

    Doug also is a practicing Attorney in California, and has knowledge and experience on risk management and medico-legal matters

    He also splits his time practicing critical care medicine as he is working toward his Neuro-Critical care board certification.

    You can usually find him living on (and restoring) one of his many boats if he is not in the ED or the ICU.

  • Joseph Zibulewsky, MD

    Medical School: Temple University, Philadelphia, PA

    Residency: University of California Los Angeles–Pediatrics and Emergency Medicine

    Hi I am Dr. Zibulewsky. I graduated from Temple University Medical School, and completed residencies in Pediatrics and Emergency Medicine at UCLA, currently boarded in both specialties. I have been practicing for the past twenty-five years and have served in various administrative positions during his career.

    I enjoy biking and cooking (I make a mean paella!). After practicing for many years in Texas, I recently moved back to Southern California with my family and loyal pet pug.

  • Eric Schultz, MD

    Medical School: University of Tel Aviv, Tel Aviv, Israel

    Residency: Temple University, Philadelphia, PA

    Hey guys I’m Eric. I have worked in a variety of academic and community hospitals across the country. My special interests include pediatrics, trauma and radiology.

    Life is short, the art long…chart less, smile more!

  • Romaine S. Sangha, MD

    Medical School: Ross University School of Medicine

    Residency: University of Nebraska Medical Center - Omaha

    Sangha splits his time between Joe’s, Omaha and the wilds of the Great White North (Canada); this means unfortunately we don’t get as much of him as we would like.

    one of the nicest, funniest, (and slightly crazy) attendings we have but we can’t have favorites (can we?) - there is a dog, and sometimes hand puppets, and always memes and videos when you need them most. oh, and he’s a pretty smart doctor too…