John L Zapas MD FACS
Medical Director, Surgical Specialists Frederick Health Medical Group
Join to View Full Profile
501 W Seventh StFrederick, MD 21701
Phone+1 240-575-2526
Fax+1 240-575-2527
Dr. Zapas is on Doximity
As a Doximity member you'll join over two million verified healthcare professionals in a private, secure network.
- Gain access to free telehealth tools, such as our “call shielding” and one-way patient texting.
- Connect with colleagues in the same hospital or clinic.
- Read the latest clinical news, personalized to your specialty.
Education & Training
MedStar Health Georgetown University (D.C.)Residency, Surgery, 1991 - 1998
University of Maryland School of MedicineClass of 1991
Certifications & Licensure
MD State Medical License 1993 - 2025
DC State Medical License 1997 - 2004
American Board of Surgery Surgery
Awards, Honors, & Recognition
- Meaningful Use Stage 1 Certification Centers for Medicare & Medicaid Services, 2012
- Fellow (FACS) American College of Surgeons
Clinical Trials
- Radiation Therapy With or Without Trastuzumab in Treating Women With Ductal Carcinoma In Situ Who Have Undergone Lumpectomy Start of enrollment: 2008 Nov 10
- Standard or Comprehensive Radiation Therapy in Treating Patients With Early-Stage Breast Cancer Previously Treated With Chemotherapy and Surgery Start of enrollment: 2013 Aug 01
- Docetaxel, Carboplatin, Trastuzumab, and Pertuzumab With or Without Estrogen Deprivation in Treating Patients With Hormone Receptor-Positive, HER2-Positive Operable or Locally Advanced Breast Cancer Start of enrollment: 2014 Jan 15
Publications & Presentations
PubMed
- 32 citationsLong-Term Follow-Up of Cardiac Function and Quality of Life for Patients in NSABP Protocol B-31/NRG Oncology: A Randomized Trial Comparing the Safety and Efficacy of D...Patricia A. Ganz, Edward H. Romond, Reena S. Cecchini, Priya Rastogi, Charles E. Geyer
Journal of Clinical Oncology. 2017-10-26 - 35 citationsThe repurposed anthelmintic mebendazole in combination with trametinib suppresses refractory NRASQ61K melanoma.Cynthia M. Simbulan-Rosenthal, Sivanesan Dakshanamurthy, Anirudh Gaur, You-Shin Chen, Hong-Bin Fang
Oncotarget. 2017-02-02 - 9 citationsUsing Value-Based Analysis to Influence Outcomes in Complex Surgical SystemsJohn R. Kirkpatrick, Stanley Marks, Michele Slane, Donald Kim, Lance Cohen
Journal of the American College of Surgeons. 2015-04-01
Press Mentions
Single Best Practice to Prevent DVT Reduces Hospital Costs by More Than $1.5 Million AnnuallyJanuary 29th, 2016
Professional Memberships
- Member
- Member
Viewing the full profile is available to verified healthcare professionals only.
Find your profile and take control of your online presence:
