Meet Our Providers

The ARCW team of medical providers is here to provide you with the most comprehensive, patient-centered care possible. All ARCW providers are welcoming of LGBTQ patients and knowledgeable about LGBTQ health issues. If you have HIV and would like to schedule an appointment with any one of them, please click on the Make an Appointment links on this page.


Leslie Cockerham, MD, MAS Vice President of Medical Affairs Phone: 414-223-6800

Dr. Leslie Cockerham is the Vice President of Medical Affairs for the ARCW Medical Clinic. In addition to providing medical care to her patients, Dr. Cockerham is responsible for leading the medical clinic operations of Wisconsin's largest HIV clinic.

Dr. Cockerham received her medical degree from Northwestern University and completed her residency and infectious disease fellowship at the University of California San Francisco. She also has a Master’s degree in Clinical Research from UCSF.

Dr. Cockerham’s research has focused on understanding how HIV can cause immune dysfunction and persist even with long-term antiretroviral therapy.  She is planning to continue exploring strategies that target these mechanisms with the goal of bringing us closer to achieving the eradication of HIV.

Kartikey Acharya, MD, MPH Medical Provider Phone: 414-223-6800

Dr. Kartikey Acharya joined ARCW as one of the medical providers in July 2015.

Dr. Acharya received his M.B.B.S. (Bachelor of Medicine, Bachelor of Surgery) from Government Medical College, Surat, India and his Masters in Public Health at the University of Alabama, Birmingham.  He completed his residency in Internal Medicine at the University of Arkansas followed by an additional year as Chief Resident.

Dr. Acharya finished his fellowship in Infectious Diseases at the Medical College of Wisconsin in June 2015 and joined the Division of Infectious Diseases at the Medical College of Wisconsin.

His clinical interests include care of patients with HIV, viral hepatitis co-infection in HIV patients and HIV prevention using Pre-Exposure Prophylaxis.

Sol Aldrete, MD Physician Phone: 414-223-6800

Dr. Sol Aldrete received her medical degree from Universidad Panamericana in Mexico City, Mexico in 2009. Subsequently, she completed her Internal Medicine residency and Infectious Diseases fellowship at Emory University in Atlanta, Georgia.

Dr. Aldrete joined ARCW as one of the medical providers in August 2016. She does outpatient HIV care at ARCW and also attends on the outpatient and inpatient infectious diseases consult service at Froedtert Hospital.

Her clinical interests include care of patients with HIV, sexually transmitted diseases (STD) and HIV prevention using Pre-exposure prophylaxis.

Christine Hogan, MD Physician Phone: 414-223-6843

Dr. Christine Hogan is one of three infectious disease physicians providng HIV and primary care at the ARCW Medical Center.  After receiving her medical degree from the University of California - San Francisco, Dr. Hogan completed her residency at Massachusettes General Hospital and did an infectious disease fellowship at the Columbia University School of Public Health in New York.

Dr. Hogan was the principal investigator of SETPOINT, an AIDS Clinical Trials Group study that  indicated the immune systems of newly-infected HIV patients not being treated with  anti-retroviral therapy (ART) deteriorate faster than what previously had been thought. These  findings, based on a study of 130 recently HIVinfected individuals throughout the United States and Peru, could have an impact on future clinical research trials as well as public health policy.

Sharon O'Dwyer, NP Nurse Practitioner Phone: 414-223-6800

Sharon O’Dwyer provides HIV and Primary Health Care for patients at the ARCW Medical Center and is the Clinic Director for the ARCW Kenosha Medical Clinic. As Clinic Director, Ms. O'Dwyer provides leadership in HIV care for the clinic staff as well as Kenosha area patients.

Ms. O’Dwyer graduated from St. Xavier University College of Nursing Family Nurse Practitioner Program, in Chicago, Illinois. She is a certified HIV Specialist through the American Academy of HIV Medicine.

Ms. O’Dwyer focuses her practice on providing patient-centered care and encourages patients to achieve health and wellness through actively participating in their care.

Winsome Panton, DNP, AAHIVS Senior Director of Healthcare Services Phone: 414-225-1601

Dr. Winsome Panton is a Board Certified Adult Nurse Practitioner at the ARCW Medical Center. Dr. Panton has been working with the HIV/AIDS population for the past 11 year and received certification as an HIV Specialist from the American Academy of HIV Medicine (AAHIVM).

As a Nurse Practitioner at ARCW, Dr. Panton manages all medical aspects of HIV/AIDS for her patients and she also works with pregnant women who are HIV-positive. She believes in a holistic model of care focusing on the physical, mental, social and emotional aspect of care. Dr. Panton has an interest in HIV patients who are co-infected with hepatitis C.

Dr. Panton received her BSN, MSN and doctorate from Marquette University and also has a Bachelor of Science in Finance from Central Connecticut State University. She is also a preceptor for Marquette University’s Nurse Practitioner students. Dr. Panton received the Distinguished Alumna in Service to Nursing Award from the College of Nursing at Marquette University in 2008.

Amy Pease, NP Nurse Practitioner Phone: 608-252-6540

Amy is a Nurse Practitioner providing HIV and primary care in the ARCW Madison Medical Clinic.  She received her Bachelors and Masters of Science in Nursing from the University of Wisconsin.  Amy has spent the past ten years providing primary care to at-risk populations, including frail elders, adults with disabilities, and people affected by poverty, mental illness and substance abuse.  She has served as a preceptor for Nurse Practitioner students through the University of Wisconsin and has a particular interest in serving patients with complex psychosocial needs.

Janaki Shah, DO Physician Phone: 414-223-6800

Dr. Janaki Shah is one of four infectious disease providers at the ARCW and also provides inpatient consultation service at Froedtert Hospital. At ARCW, Dr. Shah provides patient-centered care in an effort to make sure all her patients receive excellent, individualized care.

Dr. Shah graduated from University of Medicine and Dentistry of New Jersey and completed her residency, internship and fellowship at the Medical College of Wisconsin in Milwaukee.  During her infectious disease fellowship, she trained at the ARCW and was excited to stay on as a provider.

Robert Striker, MD Medical Provider Phone: 608-252-6540

Dr. Robert Striker is a medical provider at the AIDS Resource Center of Wisconsin, as well as an Associate Professor of Medicine, Infectious Diseases in the Department of Medical Microbiology at UW. He received his medical degree from Washington University in St. Louis, Missouri and completed his residency at the California Pacific Medical Center in San Francisco, California. He is board certified in infectious diseases and specializes in antiviral therapy.

View Robert Striker's research overview

Jonathan Weimer, FNP-BC Nurse Practitioner Phone: 414-225-1601
Ryan Westergaard, MD, PhD, MPH Medical Provider Phone: 608-252-6540

Dr. Ryan Westergaard received his undergraduate degree from the University of Wisconsin, followed by his Medical and Graduate degrees from Johns Hopkins. He is board certified in infectious diseases and internal medicine. He currently teaches at the UW School of Medicine and Public Health.

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Patient Testimonials

"I always thought that HIV would be my biggest worry,” said Melody Rose. “Thankfully ARCW has treated my HIV well, and has helped me fight all of the other challenges of living with HIV.”

See other testimonials