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Clinical Faculty

Denise Ammon, MD
Assistant Facility Medical Director
Medical School: Tulane University
Residency: SUNY Downstate/Kings County
Professional Interests: Critical care, Ultrasound
Hobbies: Traveling, running, reality tv, german shepherds, and saving the world

Omar Amr, MD
Medical School: Harvard Medical School
Residency: University of California, Irvine
Hobbies: Water polo, water sports 


Tiffany Chioma Anaebere, MD
Medical School: Duke University School of Medicine
Residency: Highland Hospital, Oakland, CA
Professional Interests: Diversity in medicine, Quality improvement, patient education, healthcare utilization, mental health/wellness
Hobbies: Travel, food, fitness, spending time with friends/family 


Sadi Dalieh, MD, MS, FACP
Medical School: Ohio State University
Residency: NEOMED
Professional Interests: Infectious Diseases, Addiction Medicine
Hobbies: Traveling


Doug DeMartinis, MD
Medical School: UC Irvine
Residency: San Joaquin General Hospital
Hobbies: Photography, backwoodsing, travel


Anatoliy Goltser, MD
Medical School: Drexel
Residency: Maimonides, Emergency Medicine (Brooklyn, NY)
Professional Interests: critical care, sports medicine
Hobbies: Weightlifting, skiing, mountain biking, changing diapers

Jonathan Mario Gutiérrez, MD
Medical School: Temple University School of Medicine
Residency: Texas Tech University Health Science Center, El Paso
Professional Interests: EKG and cardiology, teaching
Hobbies: Rugby, swimming, bicycling, exercise/weight lifting, family, dancing, music (listening but also trying to learn guitar & piano), getting rid of loans, learning about Emergency Medicine

Michael Herrera, DO
Medical School: Western University of Health Sciences College of Osteopathic Medicine
Residency: UC Davis Medical Center



Dennis Hsieh, MD, JD
Medical School: University of California, San Francisco
Residency: Highland Hospital, Oakland, CA
Professional Interests: Social Determinants of Health, Access to Care, Airway, Ultrasound, ED Flow/Efficiency, Quality Improvement, Cost of Care
Hobbies: Snowboarding, soccer, ultimate, sleeping


Douglas Malcolm, MD
Medical School: University of Utah School of Medicine
Residency: Kern Medical Center, Bakersfield, CA



Louis Marquet, DO 
Medical School: University of Medicine and Dentistry of New Jersey - School of Osteopathic Medicine 
Residency: Rowan SOM/Jefferson Health System
Hobbies: Fitness, homebrewing


David Martin, MD
Medical School: Columbia University College of Physicians and Surgeons 
Residency: Highland Hospital, Oakland, CA
Fellowship: Highland Hospital - Ultrasound/Global Health
Professional Interests: Medical Education, Diversity in Medicine, Point-of-Care Ultrasound in Latin America
Hobbies: Travel, fitness, hiking 

Mohammad Reza Mohebbi, MD
Medical School: Tehran University of Medical Sciences
Residency: University of Iowa (Family Medicine) and University of Missouri-Columbia (Emergency Medicine)
Professional Interests: Clinical research & publication
Hobbies: Spending time with my family


Romaine S. Sangha, MD
Medical School: Ross University School of Medicine
Residency: University of Nebraska Medical Center -Omaha
Professional Interests: Outpatient care, community awareness, telehealth
Hobbies: Snowboarding, paintball, spending time with family, handyman projects



Zina Semenovskaya, MD FAWM
Medical School: Weill Cornell Medical College
Residency: SUNY Downstate / Kings County
Fellowship: Wilderness Medicine at Stanford University Medical Center 
Professional Interests: Conservation medicine, global health, search and rescue, aeromedical retrieval, disaster relief, POC ultrasound
Hobbies: Hiking, backcountry and downhill skiing, kayaking, international travel, spending time with my husband, daughter and dogs

Scott Tcheng, MD
Medical School: University of Texas, Southwestern Medical Center
Residency: University of California, San Francisco / San Francisco General Hospital
Professional Interests: Ultrasound, medical education
Hobbies: Rock climbing, backpacking, camping, traveling, live music