Karan P. Singh, MD, MBA, FACHE, FACEP
President & Chief Executive Officer
Dr. Singh is responsible for providing executive leadership for our medical group to continue our promise of delivering high quality, patient empowering care. Dr. Singh serves on the board of Riverside County Medical Association and holds teaching academic faculty appointments at Loma Linda School of Medicine and UC Riverside School of Medicine. Dr. Singh is dual Board-certified in Healthcare administration and Emergency Medicine.
Dr. Singh received his medical degree from UCLA School of Medicine as part of the prestigious BS/MD Thomas Haider Program at UCR/UCLA. He completed his MBA in Healthcare Administration and residency in Emergency Medicine at Loma Linda University Health. Dr. Singh completed his post-graduate training in Healthcare Safety, Quality, Informatics and Leadership at Harvard School of Medicine and completed his fellowship in Executive Leadership with Envision Healthcare and Jefferson Hospital System in Philadelphia.
In 2023, Dr. Singh was awarded the Regent’s Award by American College of Healthcare Executives (ACHE) for his servant leadership and development of innovative and clinical excellence programs. Most recently, Dr. Singh successfully graduated from American Hospital Association’s Next Generation Leaders Fellowship with a scholarship sponsorship from John A. Hartford Foundation and Institute for Healthcare Improvement. As a part of his fellowship program, Dr. Singh presented Seva Medical Group’s Emergency Department Blueprint for Geriatric Care Excellence at American Hospital Association’s National Leadership Summit.
Erin Noud, DO
Medical Director
Dr. Erin Noud is a distinguished Board-Certified Emergency Medicine Physician that brings a wealth of leadership and clinical expertise to lead the Emergency Department team. Originally from Northern California, she earned her Bachelor of Science degree at UCLA and pursued medical school and residency training at Midwestern University in Chicago. Throughout her training, she gained diverse experience in various settings, from busy urban community hospitals to Level One trauma center at Cook County, Chicago.
Dr. Noud currently serves as the Chief of Emergency Medicine for a hospital in Southern California. She represents the department at the Medical Executive Committee and has developed strong relationships with our medical staff and nursing leadership. Her commitment to education and quality improvement shines through her development of continuous medical education initiatives for students as well as our medical and nursing staff.
Dr. Noud’s comprehensive training, commitment to excellence, and collaborative leadership style make her an invaluable asset for our team.
Zachary McCarty, MD
Medical Director
Dr. Zachary McCarty, MD, is a board-certified Emergency Medicine physician whose leadership is characterized by outstanding interpersonal skills and a meticulous approach to operational oversight. He has cultivated strong relationships with fellow staff members and neighboring hospitals, contributing significantly to our collaborative environment.
Driven by a commitment to efficiency in emergency care, Dr. McCarty is devoted to upholding rigorous quality metrics and improving healthcare accessibility, particularly for underserved populations. As a dedicated and long-term member of the local community, he brings valuable experience and insights to his role.
Dr. McCarty obtained his B.S. in Business Administration from Pacific Union College before pursuing medical education at Loma Linda University. He completed his residency training in Emergency Medicine at Loma Linda University. Beyond his professional commitments, Dr. McCarty enjoys spending quality time with his family, engaging in golf, and savoring outdoor activities during leisure moments.
Brandon McCullough, PA-C
Advanced Practice Provider Director
Mr. McCullough embarked on his distinguished career in healthcare in 2005 as an EMT, and later progressing to a 9-1-1 Paramedic in 2008. During this tenure, he served as a Paramedic Preceptor and Paramedic Skills Instructor at Mt. San Antonio College, accumulating over a decade of invaluable experience in pre-hospital medicine.
In 2018, he embarked on the next phase of his professional journey by enrolling in the Physician Assistant program at Loma Linda University. Mr. McCullough has previously served as the Patient Experience Lead for our emergency medicine team and presently serves as the APP Site Director and PA Student Coordinator. Among his noteworthy achievements is the development and implementation of a New Graduate APP program. This innovative initiative offers newly graduated PAs a structured environment to gain experience and refine their skills, contributing to our group’s mission of recruiting exceptional candidates for our hospital.
Mr. McCullough is the Assistant Pastor at Cross-Walk Fellowship in Upland where he attends church with his wife and four children.
John Bitting, RN, BSN, MA, CENP
Senior Director of Clinical Services
John Bitting is a seasoned healthcare leader with over 20 years of experience in clinical operations and nursing leadership. In his role as Senior Director of Clinical Services at Seva Medical Group, he is dedicated to overseeing the redesign and optimization of clinical workflows, with a strong emphasis on enhancing patient care and operational efficiency.
John is certified in Executive Nursing Practice (CENP) and Lean healthcare, reflecting his commitment to excellence and continuous improvement in clinical practice. He has a proven track record of successfully transforming emergency departments and inpatient units, leveraging his expertise in clinical strategy and care quality improvement.
Known for his ability to foster collaboration among diverse healthcare teams, John empowers professionals to achieve high standards of care in dynamic environments. His leadership is characterized by a focus on innovative solutions and a patient-centered approach, ensuring that care delivery meets the evolving needs of patients and the healthcare system.
Estefany Duarte, PA-C
Education Program Lead
Estefany Duarte has been a dedicated member of our team for several years, bringing a wealth of experience and a deep passion for education to her role. In 2019, Ms. Duarte graduated from PA school and pursued a post-graduate emergency medicine fellowship, traveling across the country to gain advanced training. This fellowship ignited her passion for academia and continuing education, inspiring her to share her knowledge and experiences with others. Her commitment to professional growth and excellence led her to obtain a Certificate of Added Qualifications (CAQ) in Emergency Medicine, demonstrating her dedication to the highest standards of patient care.
Ms. Duarte’s enthusiasm for teaching and mentoring has been a driving force in her career. She actively engages in educational initiatives, mentoring new graduates, and contributing to the ongoing development of her peers. Estefany Duarte’s blend of clinical expertise, educational passion, and leadership aspirations makes her a vital asset to the healthcare community.
Matthew Hatch, PA-C
Patient Experience Lead
Matthew Hatch, PA-C, is a distinguished Physician Assistant with a master’s degree Loma Linda University, complementing his bachelor’s degree in Emergency Medical Care. Since 2021, he has been an integral part of our team. His dedication to patient care and clinical excellence led to his appointment as the Patient Care Experience Lead, where he oversees patient surveys and medical inquiries, driving continuous quality improvement initiatives. A committed mentor in the our New Grad and FastStart Programs, Matthew trains and precepts new Physician Assistants, playing a pivotal role in their professional development. His outstanding contributions to education and mentorship were recognized in 2023 when he received the Preceptor of the Year award, highlighting his significant impact on both patient care and the advancement of future healthcare professionals.
Natasha Quitoriano-Paredes
Credentialing Director
Natasha serves as the Credentialing Director at Seva Medical Group, bringing over 20 years of expertise in provider enrollment and credentialing for large specialty medical groups. She is highly skilled in optimizing credentialing workflows, ensuring regulatory compliance, and improving provider satisfaction, with specialized knowledge in Medi-Cal and Medicare. Natasha has also driven business development initiatives, successfully guiding start-up practices to operational success. Renowned for her communication and leadership abilities, she fosters collaboration across all levels and mentors emerging healthcare leaders. Since 2013, Natasha has volunteered as a Command Team Leader for the U.S. Marine Corps, earning the Presidential Volunteer Service Award in 2018 for her distinguished service
Building a Brighter Future: Investing in Emerging Leaders and Our Communities
Seva Medical Group places a strong emphasis on investing in our local clinicians, fostering an environment that nurtures leadership development within our own team members. Through mentorship and opportunities for growth, our team has enabled them to evolve into the accomplished leaders they are today.
To continue this trajectory, Seva Medical Group is dedicated to formalizing our investment in leadership development. We enroll our leadership team in recognized programs offered by prestigious institutions such as the American College of Emergency Physicians (ACEP), the American College of Physician Leaders (AAPL), and the American College of Healthcare Executives (ACHE). This strategic investment in our team aligns with our vision of delivering exceptional care to our patients and making a lasting positive impact on our community. The dividends of this investment will resonate not only in the professional growth of our clinicians but, most importantly, in the quality of care and leadership we provide to our patients and community.
Career Pathways: New Graduate Program & FastStart Program:
Seva Medical Group takes pride in fostering future healthcare professionals. All our physicians are board-certified emergency medicine specialists, contributing to the development and implementation of innovative career pathways. These programs include collaborative partnerships with multiple Physician Assistant (PA) schools, medical schools, and graduate residency programs.
In addition, we have pioneered a new graduate program designed to mentor and prepare emerging Physician Assistants in emergency medicine. As part of their program, they will participate in fundamental emergency medicine educational programs like Emergency Medicine BootCamp and have a dedicated preceptor for 3-6 months in our emergency department. These programs show our group’s dedication to nurturing local emerging talent that can be recruited to provide clinical care within our community.
