Harvard Family Physicians P.C. is committed to providing healthcare to individuals and families in the community it serves, with superior quality and value.”


Our Promise

  1. To provide you with considerate and respectful care without discrimination.
  2. To maintain your privacy.
  3. To provide information and discuss your treatment and procedures related to your care.
  4. To provide information regarding the immediate and long-term financial implications of treatment choices in so far as they are known.
  5. To provide your care in a safe setting.”


Our History

Harvard Family Physicians, P.C., was founded by Dr. Kenneth Muckala, M.D., as a family medicine practice in 1989.  A 1967 graduate of the University of Minnesota Medical School, he had been a member of Springer Clinic in Tulsa and a long-time member of a Minnesota rural practice providing surgical and obstetrical care.

Dr. Muckala has continued the concept set forth by the founders of the former Doctor’s Hospital located near Harvard Avenue and 23rd Street, which was eventually sold.  Five of the founders joined the Harvard Family Physicians through their retirements – Warren Gwartney, M.D., John Keown, M.D., Emil Childers, M.D., Curtis Clifton, M.D., and Joseph Salamy, M.D.  The physicians were instrumental in securing a location for Harvard Family Physicians in a doctor’s building adjacent to the hospital.

The new practice was joined by Dr. Paul M. Krautter, M.D., in September 1989, who graduated from Rice University and the University of Texas at Galveston.  Shortly after, Dr. David W. Griffiths, M.D., joined in October 1990, after graduating from Stanford University and the University of Oklahoma College of Medicine.  Dr. Robert M. Mahaffey, M.D., was added in 1998, after having been a professor in the family medicine department at the University of Oklahoma in Tulsa.

The practice then expanded with the addition of prominent Tulsa Family Physicians; Dr. Michael C. Foster, M.D., in 1999; Dr. Darwin D. Olson, M.D. in 2001 and Dr. David S. Sholl, M.D., in 2003.

Dr. Robert Aikman, M.D., a prominent obstetrician and gynecologist started the OB/Gyn department 1999 and was joined by Dr. Angela D. Christy, D.O., in 2004 and Dr. Shelley D. Shoun, M.D., in 2008; and Dr. Jon C. Calvert, M.D.

In 2009 the pediatrics section was started with Dr. Kathleen A. Boyls, M.D., which quickly grew to included Dr. Janet K. Jones, M.D., and Dr. Cashel P. Newhouse, M.D.

In recent years, the practice welcomed family physicians Dr. Lawrence H. Lieberman, M.D. 2008; Dr. Jess T. Roy, D.O. 2011; Dr. Patrick VanSchoyck, M.D. 2012; Dr. Jeffrey E. Chasteen, D.O.; Dr. Jonathan E. McGhee, M.D.; Dr. Larissa Giuliano, M.D.; Dr. Patrice D. Wagner, D.O.; and Dr. John R. Miller, D.O.

Harvard Family Physicians moved its facility to its own building at 7912 E 31st Court in 2009. The new location allowed for expanded services and additional physicians in obstetrics, gynecology, pediatrics and family medicine.  It brought an opportunity for advanced, on-site technology including a laboratory, ultrasound, x-ray, and imaging services.

Harvard Family Physicians is the only independent primary care group in Tulsa and has grown into one of the largest in the state.  It has retained patients from its founding and continues to add new individuals and families into its system of care.  Dr. Muckala credits his loyal staff for the clinic’s growth and reputation, from the front desk employees to the physicians along with his long-time administrators, Patrick Schwartz and Samantha Vu.


Monday – Thursday: 7am – 7pm

Friday: 7am – 5pm

Urgent Care: Mon – Thurs 5pm – 7pm & Sat 8am – 12pm

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