Emergency Medicine in Pasadena, California
Data updated monthly · Last refresh September 2026
53 Emergency Medicine providers practice in Pasadena, and 8% received drug or device company payments in 2025. Listings are drawn from federal public records and are not endorsements.
Emergency Medicine providers in Pasadena
Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Anna Trtchounian, MDPasadena, CA · No drug or device payments recorded (2025) ·
(855) 522-7898 Dr. Asbasia Mikhail, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-3445 Dr. Betty Ahn, MDPasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-3445 Dr. Bradley Gerberich, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(818) 585-9562 Dr. Brandon Lew, D.O.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-3445 Dr. Brandon Libby, MDPasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-5000 Dr. Charles Bugg, M.D., PH.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-5116 Dr. Charles Otieno, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 486-2674 Dr. Christopher ChaPasadena, CA · No drug or device payments recorded (2025) ·
(888) 505-0043 Dr. Claudia TrillesPasadena, CA · No drug or device payments recorded (2025) ·
(888) 388-7184 Dr. David Ulick, MDPasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-5106 Dr. Denis Yen, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-3445 Dr. Derrick Myers, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 291-2525 Dr. Douglas Willard, M.D,Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-3445 Dr. Edwin Peck, MDPasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-5111 Dr. Giancarlo Dimassa, MDPasadena, CA · No drug or device payments recorded (2025) · Telehealth ·
(310) 753-0885 Dr. Huma Khan, MDPasadena, CA · No drug or device payments recorded (2025) ·
(714) 272-1055 Dr. Igor Mashchenko, MDPasadena, CA · No drug or device payments recorded (2025) ·
(855) 522-7898 Dr. James Luna, MDPasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-6445 Dr. Joanna Maack, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(917) 929-7870 Dr. John Bosco, MDPasadena, CA · No drug or device payments recorded (2025) ·
(855) 522-7898 Dr. Jorge Fernandez, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 405-7966 Dr. Josephine Bufalino, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 792-1198 Dr. Karen Xiao, MDPasadena, CA · No drug or device payments recorded (2025) ·
(855) 522-7898 Dr. Karina Ma Teresa FelicianoPasadena, CA · No drug or device payments recorded (2025) ·
(888) 576-3348 Dr. Keith Tsang, MDPasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-5116 Dr. Kevin Chu, DOPasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-2390 Dr. Lawrence Newton, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-5000 Dr. Lawrence Rudd, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 795-3339 Dr. Mai Lai, MDPasadena, CA · No drug or device payments recorded (2025) ·
(626) 577-9495 Dr. Maria Vargas Jaramillo, MDPasadena, CA · No drug or device payments recorded (2025) ·
(626) 347-7762 Dr. Marissa Valenzuela, MDPasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-5111 Dr. May Graham, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-3445 Dr. Michelle ChoiPasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-5111 Dr. Michelle O'connor, MDPasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-5000 Dr. Nicholas Greco, M.D.Pasadena, CA · $30 in drug and device payments (2025) ·
(626) 397-5112 Dr. Paul Rhee, M.D.Pasadena, CA · $14 in drug and device payments (2025) ·
(626) 397-3445 Dr. Peter Corrigan, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-3445 Dr. Robert Goldweber, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-3445 Dr. Roberto Sandoval, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 372-3018 Dr. Robert Yoho, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 585-0800 Dr. Roger Yang, M.D.Pasadena, CA · $938 in drug and device payments (2025) ·
(626) 397-3445 Dr. Roy Antelyes, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-3445 Dr. Shawn Libaw, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 792-1120 Dr. Stanley Kalter, MDPasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-3445 Dr. Steven Kushel, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 744-9868 Dr. Taline Kilaghbian, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-3445 Dr. Tiffany Fan, MDPasadena, CA · No drug or device payments recorded (2025) ·
(888) 388-7184 Dr. Timothy Ballard, M.D.Pasadena, CA · No drug or device payments recorded (2025) ·
(626) 795-2244 Dr. Vian Zada, MDPasadena, CA · No drug or device payments recorded (2025) ·
(626) 397-5000 Common questions
How many Emergency Medicine providers are in Pasadena, California?There are 53 Emergency Medicine providers with active NPI records practicing in Pasadena, according to federal NPPES data refreshed monthly.
How many Emergency Medicine providers in Pasadena received drug or device company payments?4 of 53 (8%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
Where does this data come from?Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
All specialties in Pasadena Emergency Medicine across California
