Current staffing by campus
  Pacific Campus: 24 FTEs
  Davies/Cal Campus: 14 FTEs
  Mission Bernal Campus: 8 FTEs
  Novato Campus: 5 FTEs
  Santa Rosa Campus: 9 FTEs

Physician Profiles
  Recruitment of high-level graduates from UCSF, Johns Hopkins and CPMC residency programs, with varied backgrounds and different levels of experience
  Languages spoken: Spanish, Japanese, French, Romanian, Mandarin, German, Taiwanese, Cantonese

Unique Hospitalist program culture
  Emphasis on quality and cost-effective care
  High level of teamwork and camaraderie
  Active member involvement in ongoing program improvement
  Sense of ownership of Hospitalist program amongst members

Hospitalist Retention
  Long-term Hospitalist retention
  Minimal staff turnover since program's inception
  Excellent morale and teamwork
  Outstanding role models for resident trainees


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CPMC Pacific Campus, 2333 Buchanan St., San Francisco 94115. The Medical Center is at Webster and Clay Streets. Many of our offices are located on a hill, so we offer an electric cart service from the Clay St. garage to your destination. To request this service, notify the parking lot attendant when you arrive and take your ticket. Other parking lot locations: 2405 Clay St., 2100 Webster St. Muni line 1 California stops outside the ER entrance. The 22 Fillmore, 3 Jackson and 24 Divisadero all stop within two blocks of the hospital.

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Jennifer Beachey, M.D. graduated from the Vanderbilt University School of Medicine in 1996 and completed residency in Internal Medicine at UCSF in 1999. She was a primary care physician in the East Bay until 2001 and has worked in the field of Hospitalist Medicine since 2002. She joined IMMG in April 2006 and remained with the group when it became PIMG. Dr. Beachey is Board Certified in Internal Medicine. She also has a graduate degree in Comparative Literature from UC Berkeley.

Natalie Charlton, M.D. received her medical degree from the Keck School of Medicine of USC and completed her residency at CPMC. Dr. Charlton is Board Certified in Internal Medicine.

Fabiola Cobarrubias, M.D., MBA (everyone calls her Fibi) joined IMMG as a hospitalist in October 1997 and remained with the group when it became PIMG. She completed her medical degree and residency at UCSF and is board certified in Internal Medicine. She also completed an MBA at UC Berkeley, Haas School of Business in 2003. Born in Argentina, she is fluent in Spanish.

Yile Ding, M.D. completed her undergraduate studies in Biology at the California Institute of Technology in Pasadena, CA. She then went to UCSF for medical school. In 2008, she started an internship at CPMC and went on to complete her internal medicine residency at CPMC, where she was the chief resident. Dr. Yile Ding worked with Pacific Inpatient Medical Group as a weekend hospitalist during her last year in training and then worked at UCSF as an Assistant Clinical Professor in Hospital Medicine for 3 years. She enjoys teaching and working with medical students and residents. Dr. Yile Ding is fluent in mandarin. Dr. Yile Ding is Board Certified in Internal Medicine.

Katelyn Gamson, M.D. completed her undergraduate degree in chemistry at Amherst College in 2005. During her undergraduate years, Dr. Gamson conducted research on infection control adherence among medical personnel at Tufts University and she worked for a diabetes research group based in San Francisco. Upon graduation, Dr. Katelyn Gamson attended University of California, San Francisco for medical school and then went to California Pacific Medical Center, San Francisco for residency in Internal Medicine. From 2013 to 2014 she was the chief resident at CPMC. While in her residency, Dr. Gamson was moonlighting hospitalist for PIMG. For the past year she has worked at Kaiser Permanente in Redwood City as a full-time hospitalist. Dr. Gamson has been published multiple times including in the Journal of General Internal Medicine. Dr. Gamson is a member of American College of Physicians and is Board Certified in Internal Medicine. Her hobbies include hiking, skiing, traveling, and spending time with dogs.

Priya Ganesan, M.D. Prior to joining PIMG, Dr. Ganesan worked at John Muir Medical Center where she has been a hospitalist since 2007. She graduated from Stanley Medical College and Hospital at the University of Chennai in India in 1998. From 1998-2001 she was the House Officer and a Resident in Anesthesiology at Chennai Medical College. She then completed her residency in Internal Medicine at State University New York (SUNY) in 2006. Dr. Ganesan is Board Certified in Internal Medicine.

Yu-chen Hu, M.D. received her medical degree from the University of Michigan in 2008 after receiving a B.A. of Science in Economics and one in Biochemistry. She decided to relocate to San Francisco to complete her residency at CPMC. She graduated from residency in 2011 and after a year of being a hospitalist at Saint Francis Memorial Hospital, Dr. Hu joined Pacific Inpatient Medical group. She speaks conversational Mandarin and enjoys cooking, eating, hiking, kitting, and short stories.

Kjell Jorgenson, M.D. graduated from Pomona College with a BA in Neuroscience in 2002. He then attended New York Medical College graduating in 2006. He completed his residency training in Internal Medicine at California Pacific Medical Center in 2009. Dr. Jorgenson is Board Certified in Internal Medicine.

Phil Kennedy, M.D. graduated from the UCLA School of Medicine in 1993 and completed residency in Internal Medicine at UCSF in 1996. He has worked in the field of Hospitalist Medicine since 1996. He joined IMMG in 1998 and remained with the group when it became PIMG. Dr. Kennedy is Board Certified in Internal Medicine. Dr Kennedy is also the Division Chief of Hospitalist Medicine at CPMC.

Robert Klett, M.D. attended Wake Forest University and graduated with a B.S. in Biology. He went to Wake Forest University School of Medicine graduating with his M.D. in 2004. He completed residency training in Internal Medicine at the Boston University Medical Center in 2007. After residency, he was a Faculty Member /Clinical Instructor in the Medicine Department of Boston University Medical Center. He joined PIMG in August of 2008. Dr. Klett is Board Certified in Internal Medicine.

Dan Ladabaum, M.D. joined IMMG in October 2003 and remained with the group when it became PIMG. He received his medical degree from Washington University School of Medicine in 1998, and completed his residency in Internal Medicine at the University of Utah in 2001. He is board certified in Internal Medicine.

Annie Loh, M.D. joined IMMG in August 2007 and remained with the group when it became PIMG. She received her medical degree at New York Medical College, Valhalla in 2004. Dr. Loh completed her Internal Medicine residency at California Pacific Medical Center in 2007. She is board certified in Internal Medicine. She is fluent in Mandarin, Taiwanese, and can communicate in basic Spanish.

Dr. Hanley Ma joined Pacific Inpatient Medical Group in October 2013 as a fulltime hospitalist at the Pacific Campus. Dr. Ma received his Bachelor’s at St. Olaf College in Minnesota and his Masters at Drexel Medical College in Philadelphia. After finishing medical school at the University of Minnesota, Dr. Ma completed his internal medicine residency at CPMC. He then went on to work at Alta Bates Summit Medical Center before being hired on with PIMG. He enjoys reading, cooking, golf, and many other outdoor activities.

Iris Ma, M.D. graduated from Yale University with a bachelor’s degree in Psychology-Behavioral Science Neurology. During her undergraduate years, Dr. Ma was a research assistant in the Department of Neurobiology at Yale University evaluating hormonal mediation of commissural neuron growth. She was also a Master’s Aide assisting at the residential college at Timothy Dwight College. In 2010, Dr. Iris Ma graduated with her medical degree from University of California, San Francisco. While in medical school, Dr. Ma was a medical volunteer in Cambodia working in the floating villages delivering medical care on Tonle Sap Lake. In 2014, she completed her internal medicine residency from Stanford University Medical Center and in her last year was the chief resident. Dr. Iris Ma has been published numerous times in multiple publications. From a teaching standpoint, she has experience as a medical scholar’s program teacher at UCSF and served as a medical educator counselor in Japan. Some of Dr. Ma’s interests include soccer, rock-climbing, surfing and traveling. She is currently part of the American College of Physicians. Dr. Iris Ma is Board Certified in Internal Medicine.

Aravind Mani, M.D. has joined the Pacific Campus Hospitalists team in June 2010. Dr. Mani comes to us from the University Of Los Angeles School Of Medicine where he was an Assistant Clinical Professor and also worked as a hospitalist. He graduated from the University of California, Berkeley with a B.S. in Electrical Engineering. He received his Doctor of Medicine from Stanford University of Medicine in 2003. He then completed his residency in Internal Medicine at UCLA School of Medicine in 2006. Afterward he went on to complete a Fellowship in Medical Education at UCLASM in 2009. Dr. Mani is Board Certified in Internal Medicine.

Jason Mok, M.D. came to us from Kaiser Permanente where he was a Hospital Based Specialist. He graduated from the University of California, San Diego with a B. A. in European History. He received his Doctor of Medicine from Tufts University School of Medicine in 2003. He then completed his residency in Internal Medicine at UCLA Medical Center in 2005. In 2007, Dr. Mok joined the faculty at Stanford where he is a Clinical Instructor. Dr. Mok is Board Certified in Internal Medicine.

Dr. Katherine Neilan received her M.D. from Stanford University in 1996 and completed her residency training at the University of California, San Francisco, in 1999. She is board certified in internal medicine. Prior to joining IMMG in March 2003, Dr. Neilan practiced primary care at a county health clinic in Daly City and hospitalist medicine at a community hospital in the East Bay. She remained with the group when it became PIMG.

Jane Park, M.D. received her medical degree from the Geisel School of Medicine at Dartmouth and completed her Internal Medicine residency at CPMC, serving as Chief Resident in her last year.  Dr. Park is Board Certified in Internal Medicine.

Mei Zhu Peng, M.D. joined Pacific Inpatient Medical Group in November 2013 as a fulltime hospitalist at the Pacific Campus. For about the past six years, Dr. Peng has been working as a Nephrologist at UCSF, the VA, and Portland Hypertension & Nephrology Clinic, LLP. After completing her undergraduate and medical degree at Tufts University in Massachusetts, Dr. Peng finished her Internal Medicine training at UC Davis and Nephrology fellowship UCSF. Dr. Peng is bilingual in English and Mandarin and enjoys traveling, cooking reading, and salsa dancing.

Heather Provencher, M.D. received her medical degree from the University of Vermont and completed her residency at UCSF.  Dr. Provencher is Board

Duc-Uy Quang Dang, M.D. graduated from University of California, Berkeley with a major in Molecular Cell Biology. During his time at Berkeley he did research in the lab of Dr. Randy Schekman who won the Nobel Prize in Medicine in 2013. Dr. Quang-Dang graduated from medical school from Virginia Commonwealth University School of Medicine and completed his internal medicine residency at California Pacific Medical Center, serving as Chief Resident this past year. Dr. Quang-Dang worked as a nighttime on call physician at the CPMC California Campus skilled nursing facility and moonlights on the weekends for PIMG at the Pacific Campus. Dr. Quang-Dang has conducted numerous research projects and has been published multiple times. Some of his interests include playing badminton and being an avid supporter of the Bay Area sports teams, particularly the Giants and Warriors. Dr. Quang-Dang is fluent in Vietnamese and is Board Certified in Internal Medicine.

Felicia Sapp, M.D. joined PIMG in June 2008. She received her medical degree at University of Louisville School of Medicine in 1999. She completed her Internal Medicine residency at Legacy Emanuel and Good Samaritan Hospitals in 2002. Prior to joining PIMG, Dr. Sapp worked as a primary care physician in the Northwest and subsequently became a hospitalist in October 2006. She is board certified in Internal Medicine.

Maggie So, M.D. comes to us from Kaiser Permanente where she was a Hospital Based Specialist. She graduated from the University of California, Los Angeles with a B S. in Physiological Sciences. She received her Doctor of Medicine from New York Medical College in 2006. She then completed her residency in Internal Medicine at CPMC in 2009. She was then Chief Resident at CPMC in 2010. Dr. So is Board Certified in Internal Medicine.

Robert Taylor, M.D. received his B.S in Molecular and Cell Biology from the University of California, Berkeley in 1997. He then attended the University of California, Irvine School of Medicine. He completed his residency training in Internal Medicine in 2009 at California Pacific Medical Center. Dr. Taylor is Board Certified in Internal Medicine. During his tie away from the hospital, Dr. Taylor is an avid baseball fan and enjoys golfing, skiing and traveling.

Kathleen Vanier, M.D. joined IMMG in September 2004 and remained with the group when it became PIMG. . She received her medical degree from the Johns Hopkins University School of Medicine in 1997, and completed her residency in Internal Medicine at California Pacific Medical Center in 2003. Dr. Vanier also completed a year as Chief Resident at CPMC in 2004. She is board certified in Internal Medicine.

Lauren Wu, M.D. graduated from SUNY Stony Brook School of Medicine in 1995. She completed her residency in Internal Medicine at California Pacific Medical Center and served as a Chief Resident for one year. She joined IMMG in 1999 and remained with the group when it became PIMG. Her interests include watching films, cooking and reading good books.

Wendy Zachary, M.D. joined IMMG as a hospitalist in July 2006 and remained with the group when it became PIMG. She graduated from Medical University of South Carolina in 2002 and completed her Internal Medicine Residency at California Pacific Medical Center in 2005. She subsequently completed a Geriatric Fellowship at the University of California, Los Angeles for a Geriatric Fellowship in 2006. Dr. Zachary is board certified in Internal Medicine and Geriatric Medicine.

Laura Zhang, M.D. completed her undergraduate studies in Biochemistry at the University of California, Los Angeles. Upon graduation Dr. Laura Zhang attended University of Chicago for medical school. During her time in medical school, Dr. Laura Zhang was a part of a project to help bring medical education reform at Wuhan University School of Medicine in China. In 2014, she completed her internal medicine residency at California Pacific Medical Center. While in her residency, Dr. Zhang was a part of the Department of Medicine Curriculum Committee. Dr. Laura Zhang has conducted multiple researches and has been published numerous times. Dr. Laura Zhang can speak conversational mandarin and her hobbies include traveling, table tennis, badminton, piano and ballet. Dr. Laura Zhang is Board Certified in Internal Medicine.

Donald Zumwalt, M.D. received his medical degree from Loma Linda University. He completed his residency in Internal Medicine at Loma Linda University in 1985. Prior to joining IMMG in 1997, Dr. Zumwalt practiced primary care medicine in Anaheim Hills, California. He remained with the group when it became PIMG. Dr. Zumwalt is board certified in Internal Medicine and Geriatric Medicine.

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