Physician Assistants

Kara Cossis 2017Kara Cossis, PA-C, MPH
Director, Physician Assistants


Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland Board of Physicians

        • West Virginia Wesleyan College, B.S., B.A. cum laude
        • SUNY Stony Brook, B.S., Physician Assistant Program
        • University of Florida, MPH

Kara has been a Physician Assistant since 2006 and serves as the Director of Physicians Assistants. She works at Chesapeake Urology's Union Memorial Hospital office. As a PA she performs assessments, diagnosis and treatments of patients in the hospital, Emergency Room and office, performs hospital consultations, and assists with surgery. Kara also runs the Advanced Prostate Cancer Clinics at Chesapeake Urology's​ ​Union Memorial, GBMC, and Woodholme offices.


 Sara Dennin updatedSara A. Dennin, PA-C

Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland Board of Physicians

        • Elon University, B.S. in Chemistry
        • Elon University, Physician Assistant Program; Master's of Science, Physician Assistant Studies

Sara joined Chesapeake Urology in October 2016 as a physician assistant and works with patients in the Brandywine office. She sees inpatient/ER consultations, manages post-operative patients, and performs admissions and discharges. Sara runs the Advanced Prostate Cancer Clinic at Chesapeake Urology's​ ​Brandywine office.


Misa Francis updatedMisa S. Francis, PA-C

Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland Board of Physicians

        • Sweet Briar College, B.S., Cum Laude
        • SUNY Stony Brook, B.S., Physician Assistant Program
        • Arizona School of Health Sciences, M.S., Physician Assistant Studies

Misa has been a Physician Assistant since 2006 and serves in the Columbia office. She performs assessments, diagnosis and treatments of patients in the hospital, ER, and office, performs consultations, and assists with surgery. Prior to joining Chesapeake Urology, Misa worked in hospitalist medicine at Northwest Hospital and orthopedic trauma at the R. Adams Cowley Shock Trauma Center. Misa also runs the Advanced Prostate Cancer Clinic at Chesapeake Urology's Columbia office.


Joyce Freidly updatedJoyce Freidly, PA-C

Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland Board of Physicians

        • DeSales University, B.S.
        • DeSales University, M.S., Physician Assistant Studies

Joyce has been a Physician Assistant since 2006 and works with urology patients at Franklin Square and Union Memorial Hospitals. Prior to joining Chesapeake Urology, Joyce served for nine years as a physician assistant in the Emergency Room at Bayview Hospital. Joyce runs the Advanced Prostate Cancer Clinic at Chesapeake Urology's Franklin Square office as well as at the Saint Agnes office and Hanover location.


Ralph Garrett updatedRalph Garrett, PA-C

Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland Board of Physicians

        • University of Baltimore, B.A.
        • Essex Community College, Physician Assistant Program

Ralph sees patients at the Bel Air office as well as urology consultant at Upper Chesapeake Medical Center and Harford Memorial. He has been a PA for over 30 years and is an adjunct faculty member at Towson University and CCBC. His experience includes positions as chief and senior PA roles in urology. Ralph runs the Advanced Prostate Cancer Clinic at Chesapeake Urology's Bel Air and Havre de Grace offices.


Ally Gordon updatedAlly Gordon, PA-C

Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland Board of Physicians

        • Medical School of Vitebsk State University, Vitebsk, Belarus, M.D.
        • Central City Hospital, Gomel, Belarus, OB/Gyn residency
        • Towson University/Essex Community College, M.S. with Distinction, Physician Assistant Program

Ally served as an OB/Gyn in her native Belarus, where she practiced from 1990 to 2001. She worked as a Physician Assistant in Baltimore area hospitals before joining Chesapeake Urology's Continence Center. She provides urological consulting and sees patients in the hospital and ER at Northwest and Sinai Hospitals. She specializes in the evaluation, treatment and follow-up of patient with continence issues, pelvic prolapse, pelvic pain and related conditions. 


Tara Mahan, PATara Mahan, PA-C

Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland Board of Physicians

        • University of Wisconsin, B.S., Biomedical Engineering
        • Saint Francis University, Masters of Medical Science
        • Anne Arundel Community College, Certificate, Physician Assistant

Tara joined Chesapeake Urology in 2018 as a Physician Assistant at Montgomery General Hospital as well as in Chesapeake Urology's Silver Spring office. Tara performs assessments, diagnosis and treatment of patients in the hospital and ER, performs consultations, sees inpatient/ER consultations, manages post-operative patients, and performs admissions and discharges. 


R MartinRichard Martin, PA-C

Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland Board of Physicians

        • University of Virginia, B.A., Economics
        • Anne Arundel College Physician Assistant Program, Physician Assistant Certificate

Richard has been a Physician Assistant since 2010. He joined Chesapeake Urology in 2018 and works with urology patients at Shady Grove Hospital and Holy Cross Germantown Hospital in Montgomery County. Richard sees inpatient/ER consultations, manages post-operative patients, and performs admissions and discharges. Richard previously worked at US Acute Care Solutions as a PA.  


DanJohn Daniel McCadden, PA-C 

Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland State Board of Physicians

        • Towson University, B.S., Biology
        • Johns Hopkins University, M.S., Biotechnology
        • Towson University/CCBC Essex, Physician Assistant Program Certificate

Daniel has been a physician assistant (PA) since 2008, and joined Chesapeake Urology in 2018. He sees urology patients at Greater Baltimore Medical Center (GBMC) in Towson. Prior to joining Chesapeake Urology, Dan worked as a PA at Patient First as well as at Charles Emergency Physicians at GBMC. He currently sees inpatient/ER consultations, manages post-operative patients, and performs admissions and discharges. 


Marybeth Mendoza Updated (1)

Mary Beth Lennox Mendoza, PA-C

Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland State Board of Physicians
Delineated by the Maryland State Board of Physicians Quality Assurance for Central Line and Chest Tube Placement

        • West Virginia University, B.S., magna cum laude
        • Essex Community College, Physician Assistant Program Certificate

Mary Beth has been a Physician Assistant since 1997. She serves the Westminster office team, and is the urology consultant for Carroll County General Hospital. She has training in the management of critically ill patients, post-operative management and invasive procedures. She performs assessments, diagnosis and treatments of patients in the hospital and the emergency room. She previously worked at Northwest Hospital in the Critical Care Unit. Mary Beth runs the Advanced Prostate Cancer Clinic at Chesapeake Urology's Westminster office.

 


Lindsay Nelms PA (1)

Lindsay Nelms, PA-C

Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland Board of Physicians

          • Allegheny College, B.S., Biology
          • Chatham College Physician Assistant Program 

Lindsay has more than 16 years of experience as a Physician Assistant in the field of urology as well as in orthopedic spine care and trauma surgery. She currently sees patients at the Good Samaritan Hospital where she performs hospital consultations, makes assessments, aids in the diagnosis and treatments of patients, and assists with surgical procedures. She also runs the Advanced Prostate Cancer Clinic at Chesapeake Urology's​Good Samaritan Office. Prior to joining Chesapeake Urology, Lindsay served as a PA at Urology Specialists of Maryland and previously worked at The Maryland Spine Center.    


 

Lindsey Rector, PALindsey Rector, PA-C

Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland Board of Physicians

        • Vanderbilt University, B.A., Psychology, Sociology
        • Towson University/CCBC Essex Physician Assistant Program 

 

Lindsey began her career as a physician assistant in 2009 at Mercy Medical Center in Baltimore. She primarily sees patients at Chesapeake Urology's Union Memorial Hospital office location where she performs hospital consultations, makes assessments, aids in the diagnosis and treatments of patients, and assists with surgical procedures. She also runs the Advanced Prostate Cancer Clinic at Chesapeake Urology's​ Union Memorial Hospital Office. 


Michael Ritmiller updated

Michael Ritmiller, MPAS, PA-C

Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland Board of Physicians

        • Community College of Baltimore County, A.A.
        • Towson University, B.S., cum laude
        • Towson University/Essex Community College, MPAS., Physician Assistant Program

Michael has been a Physician Assistant since 2005. He is mainly based at the University of Maryland Rehabilitation and Orthopaedics Institute, where he manages and runs a Urology Clinic and a Urodynamics Clinic. He has special training in neuro-urology, urodynamics and performing cystoscopies. His experience includes serving as a U.S. Navy Hospital Corpsmen, an operating room technician, and a surgical assistant. 


Wendy Subasic updatedWendy Subasic, PA-C

Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland Board of Physicians

        • College of Notre Dame, B.A. Biology
        • Towson University, Masters in Physician Assistant Studies

Wendy has been a Physician Assistant since 2006.  She works at Chesapeake Urology's Saint Agnes office and makes rounds at Saint Agnes Hospital and Harbor Hospital.  Wendy has a strong background in the emergency room and is certified in femoral central lines and lumbar punctures.


Wendy Sullivan  updated

Wendy Sullivan, PA-C

Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland Board of Physicians

        • King's College, B.S.
        • King's College, Physician Assistant Certificate

Wendy has been a Physician Assistant since 2001 and assists the Franklin Square office team and covers Franklin Square Hospital. She performs assessments, diagnosis and treatments of patients in the hospital, ER and office. Wendy also performs hospital consultations, and assists with surgery. Her previous work experience includes Johns Hopkins Bayview Medical Center and Virginia Urology. Wendy runs the Advanced Prostate Cancer Clinic at Chesapeake Urology's Odea office on the University of Maryland/St. Joseph's Hospital campus and at the Towson/Ruston office location. 


IMG_7344 SARA (2)Sara P. Tamashasky, PA-C

Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland Board of Physicians

        • University of Dayton Dayton, OH, B.S., Biology, Summa Cum Laude; University’s Honors Program
        • George Washington University, Washington, D.C., Master of Science in Health Sciences, Physician Assistant Studies; Master of Public Health: Administrative Medicine/Management

Sara has been a Physician Assistant for more than 15 years, previously working as an Emergency Medicine PA at Emergency Medicine Associates in Gaithersburg and Johns Hopkins Bayview Medical Center. Sara joined Chesapeake Urology in 2018 and works with patients at Holy Cross Hospital, Silver Spring and Suburban Hospital. She sees inpatient/ER consultations, manages post-operative patients, and performs admissions and discharges. 


 

Robin Thomas PA

Robin A. Thomas, PA-C

Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland Board of Physicians

        • University of Maryland College Park, B.S. in Chemistry
        • University of Maryland School of Medicine, B.S. in Medical & Research Technology
        • Towson University/CCBC Essex, Master's of Science, Physician Assistant Studies

Robin has been a physician assistant since 2006 and joined Chesapeake Urology's O'Dea office in Towson in July 2016. Robin sees inpatient/ER consultations, manages post-operative patients, and performs admissions and discharges.  


Larry Waskow updatedLarry Waskow, MAS, PA-C

Certified by the National Commission on Certification of Physician Assistants
Licensed by the Maryland Board of Physicians

        • Frostburg State College, B.S. Biology
        • Johns Hopkins School of Health Sciences, Essex Community College, A.A. and certificate with high honors, Physician Assistant Program
        • Johns Hopkins, Masters in Administrative Science

Larry has been a Physician Assistant since 1978. He is experienced in both hospital and office urologic care and performs consultations and assessments, diagnosis, and treatments of patients in the hospital, ER and office. He previously worked at Homewood Hospital, University of Maryland Medical Center and Sinai Hospital in general surgery, neurosurgery, and urology.