leadership team

Amy Sneor is a seasoned healthcare leader with over three decades of experience, seamlessly integrating strategic business acumen with clinical expertise as a Registered Nurse. After years in Chicagoland, she now calls Arizona home and leads Spectrum Medical Care Center as the CEO with a commitment to compassionate, inclusive, and equitable care. Throughout her career, Amy held pivotal roles in business strategy, clinical operations, and nonprofit advancement, consistently enhancing patient care and fostering meaningful community partnerships. She specializes in healthcare strategy development, client acquisition, hospital operations, and nonprofit fundraising, with an unwavering focus on quality outcomes. Deeply passionate about serving diverse and underserved populations, particularly the LGBTQIA2S+ community, Amy champions culturally affirming programs to ensure every individual feels respected and valued. She leads with empathy and purpose, advancing Spectrum Medical’s mission to eliminate health disparities and provide dignified, patient-centered care for all.

Dr. Thanes Vanig, an accomplished medical professional, founded Spectrum Medical in 1997. His educational background, including Magna Cum Laude honors from Mahidol University Medical School in Thailand, Internal Medicine residency at Harvard Medical School, and a Postdoctoral Fellowship in Infectious Diseases from Stanford University Medical School, has formed the basis of his expertise. Dr. Vanig is internationally renowned for his work in HIV medicine, actively contributing to the field through speaking engagements, publications, and advisory roles. Beyond his professional accomplishments, he is deeply committed to community service, actively participating in initiatives such as the City of Phoenix Fast Track Cities Initiative and taking a leadership role within the Maricopa START (State of Arizona Rapid Treatment) Program. In this program, he authored the medical protocol to follow in Maricopa County for providing immediate support and guidance to newly diagnosed HIV patients, helping them access the care they need and fostering a sense of safety and well-being within the community.

Dr. Howard Grossman is a nationally recognized internist and trailblazer in LGBTQIA2S+ health and HIV care. As Spectrum Medical’s Medical Director, he brings over 40 years of experience delivering compassionate, identity-affirming care. Dr. Grossman has led major clinics across the U.S., including Fenway Health in Boston, Howard Brown Health in Chicago, and the LGBTQ Center of Southern Nevada. He founded the first private primary care practice in New Jersey dedicated solely to LGBTQ+ patients and served as Executive Director of the American Academy of HIV Medicine. He’s also a medical educator, global HIV advocate, and published author committed to patient empowerment and healthcare equity. 

At Spectrum, Dr. Grossman leads with a deep belief in care that’s collaborative, respectful, and rooted in trust. When you see him, expect more than expertise—you’ll be seen, heard, and valued.

Working here is rewarding as it allows me to help others and support the community. Outside of work, I find joy in traveling, hiking and catching up with family/friends.

I am passionate about helping our community! One of the things I enjoy is spending time with my FAMILIA!