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Care Providers

Medical Director

Pharmacists

  • Charlie Twilley, PharmD, MBA

    Clinical Pharmacy Specialist

    Dr. Charlie Twilley is a clinical pharmacy specialist in ambulatory medicine/anticoagulation management. He earned a doctorate of pharmacy from the University of Maryland and an MBA at the University of Baltimore. He has worked at the Johns Hopkins Bayview Medical Center for over 25 years. In addition to serving as a clinical assistant professor at the University of Maryland and precepting students from the College of Notre Dame in Maryland, Dr. Twilley also precepts ambulatory care medicine and drug information & policy for the PGY-1 Residency Program at Johns Hopkins Bayview Medical Center.

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  • Nazeer Ahmed, PharmD, BCPS, CGP

    Clinical Pharmacy Specialist

    Dr. Nazeer Ahmed graduated from University of Madras, India with a bachelors in pharmacy. He later earned a doctorate of pharmacy degree at the University of Maryland, Baltimore School of Pharmacy. He is board-certified in pharmacotherapy and is a certified geriatric pharmacist.

    Dr. Ahmed is a clinical specialist in internal medicine and geriatrics at Johns Hopkins Bayview Medical Center.

    Dr. Ahmed is a member of both ASHP and MSHP and plays an active role in educating and mentoring both student pharmacists and PGY1 residents on his internal medicine rotation. He is highly recognized by his internal medicine faculty and nurses and is involved with various committees focused on improving the health and safety of medicine and geriatric patients. Dr. Ahmed has received recognition from the Medical Center for his many contributions to safe patient care.

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  • Ronak Amin, PharmD

    Pharmacist

    Dr. Amin earned his doctorate of pharmacy degree from The Ernest Mario School of Pharmacy at Rutgers University. He joined Johns Hopkins Bayview Medical Center as a pharmacist in 2020. He has a wide range of interests within the pharmacy department and provides patient care in the oncology infusion center, OR satellite, and in-patient pharmacy. Dr. Amin is involved in various committees and projects within the department helping improve workflow and communication.

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  • Srilaxmi Musunuri, BSPharm, MS, RPh

    Pharmacist

    Dr. Musunuri has been a pharmacist at Johns Hopkins Bayview Medical Center since 2017. She received a bachelor’s degree in pharmacy from India and reciprocated her pharmacist license through an internship at the UNC Healthcare, Chapel Hill, NC. She holds a master’s degree in Cell Biology and Biotechnology from the University of the Sciences in Philadelphia and has over a decade of research and lab-management experience in cardiovascular biology from University of Pennsylvania and UNC. Dr. Musunuri then transitioned into the pharmacy career as Quality Assurance Specialist and Controlled Substances Coordinator for the UNC Medical Center. Dr. Musunuri’s interests include Business Intelligence reporting and Data Analytics for various Pharmacy Operations, as well as practice in the anticoagulation clinic.

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  • Corine Njonkou, PharmD

    Pharmacist

    Dr. Njonkou began working as a pharmacist at Johns Hopkins Bayview Medical Center in 2019. She received her pharmacy degree from the University of Maryland Eastern Shore School of Pharmacy. She is presently pursuing a Master of Public Health - Public Policies degree at the University of Maryland. Dr. Njonkou primarily focuses her efforts on the inpatient pharmacy and anticoagulation clinic at John Hopkins Bayview Medical Center.

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  • Paul Ortiz, PharmD, BCPS, CGP

    Clinical Pharmacy Specialist

    Dr. Ortiz is a clinical pharmacy specialist in internal medicine and geriatrics at Johns Hopkins Bayview Medical Center. He earned a doctorate of pharmacy from the University of Maryland School of Pharmacy. After graduation, he completed a PGY-1 Pharmacy Practice Residency at Johns Hopkins Bayview Medical Center and a PGY-2 Geriatric Pharmacy Practice Residency at the University of Maryland School of Pharmacy.

    Dr. Ortiz is involved in various committees within the institution, including Medication Error Reduction Improvement Team (MERIT) and the Falls & Restraints Committee. He also is an active member of Maryland Chapter of American Society of Consultant Pharmacists (MD-ASCP). His clinical interests include geriatrics, transitions of care, dementia and medication safety.

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  • Navya Varshney, PharmD

    Clinical Pharmacy Specialist

    Dr. Varshney is a clinical pharmacy specialist in internal medicine, geriatrics, and ambulatory care. She is the Student Coordinator and serves as a preceptor for the University of Maryland, Shenandoah University, and Notre Dame of Maryland University. She is also the Co-Chair of the Diabetes subcommittee of the Johns Hopkins Pharmacy Clinical Practice Council and serves as the P&T Secretary.

    She earned a doctorate of pharmacy degree from the University of Michigan College of Pharmacy. After graduation, she completed a PGY-1 pharmacy residency at the University of California, San Francisco and PGY-2 residency in ambulatory care and family medicine at the University of Colorado. Her interests include cardiology, endocrinology, geriatrics, leadership, and population health.

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Clinic Staff

  • Anna Anderson

    Patient Registrar
    Anna Anderson has over 38 years experience at The Johns Hopkins Hospital and Johns Hopkins Bayview Medical Center, and has dedicated herself to helping others. She has found such joy and satisfaction while helping staff, patients, and families over the years.

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  • Tiffany Valencia, CMA

    Medical Assistant
    Tiffany Valencia has been a medical assistant at the anticoagulation clinic since 2018. She obtained her medical assisting certification from the Fortis Institute of Towson in 2017 and completed her clinical externship at the University of Maryland Shock Trauma Outpatient Pavilion before joining the Johns Hopkins Bayview Pharmacy team.

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  • Holly McDaniel, MSN, RN

    Ambulatory Services Manager II

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