RUHS Medical Center Medical EducationVascular Surgery Residency
Graduate Medical Education

Vascular Surgery Residency

Moreno Valley, CA
12 Positions per year
Matched via NRMP
ACGME Accredited
6
Core Faculty
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Letter from the Program Director
A Note from the Program Director Thanks for your interest in the Vascular Residency at Riverside University Health System! I firmly believe a good fit can make residency actually enjoyable, so with us what you see is what you get. Our main training site is a safety net hospital - complex pathology, people who haven’t had care for years, and sometimes we’re the last hope for a patient whose deck is stacked against them. It's humbling work, but it builds clinical judgment borne of managing real-world complexity. With experience here, you’ll have the tools to handle anything you’ll come across in practice. Residents also spend a significant amount of time at our affiliated Kaiser Permanente hospital, where you'll see how vascular surgery runs inside one of the most sophisticated integrated health systems in the country. The goal is to get a robust education in the breadth of what vascular encompasses. And of course it doesn’t hurt that we’re in sunny Southern California, with access to pretty much any activity you use to stay grounded. Ask one of our residents how fast they can make it to Disneyland from here! 😊 One of our core goals is to adapt to the needs of each resident. Tell us where you want to end up — academics, community practice, complex aortic work, something you're still figuring out — and we can tailor your rotations, mentorship, and case exposure around you. We’re excited to graduate surgeons who are technically sharp and genuinely ready for the specific career they want. What I hope stands out most, though, is our program culture. We've worked hard to build an environment rooted in psychological safety and respectful collegiality, where residents feel comfortable asking questions, speaking up, and learning from mistakes without fear. Autonomy progresses gradually and our faculty genuinely like teaching — they'll scrub in when a case gets dicey but let you run it as soon as you're ready. We care about providing a space where you can be pushed hard clinically without losing the parts of yourself that make you a decent human being outside the hospital. Training isn’t something we just hand over to residents; it's something we build together, evolving each year alongside the people in the program. We want to produce excellent surgeons, true partners in patient care — clinicians we're proud to stand beside as colleagues (and maybe even call for advice!). If that resonates with you, I'd love for you to meet our faculty and residents and see it for yourself! Warmly, Kristyn Mannoia, MD, RPVI, FACS Program Director, Vascular Surgery Residency Riverside University Health System
Kristyn Mannoia, MD
Kristyn Mannoia, MD

Core Faculty

5 years
Program Length
1
Residents per Year
3
Active Residents

Curriculum

Year-by-year training structure and rotation schedule

Rotations are in one month blocks: core Vascular, General Surgery or vascular surgery affiliated rotations at Riverside University Health System (RUHS) and Kaiser Permanente. The PGY-1 will rotate through vascular, general surgery, ICU and vascular medicine with one research month and one elective month. The primary goal of the first year is to develop entry-level skills, knowledge, and abilities while managing the surgical patient.

The second-year resident rotates on services at both RUHS and Kaiser Permanente in plastics, vascular lab, IR and ICU in addition to vascular. We also have a pediatric surgery rotation at Childrens Hospital of Orange County, a dedicated research month and an elective month.

The third-year resident rotates on surgery services both at RUHS and Kaiser Permanente with clinical experience on the thoracic surgery, podiatry service, ENT and surgical oncology in addition to more vascular rotations and an elective month.

The fourth-year resident rotates on core vascular surgery at RUHS and Kaiser Permanente nearly all year, with an additional elective month and a senior month in surgical oncology.

The fifth-year resident rotates on vascular surgery at RUHS and at Kaiser Permanente with one rotation in Interventional Radiology.

Didactics & Academic Activities
Didactics — Tuesdays 12:00pm-3:00pm in person at RUHS or remotely if rotating off-site. Each session includes case conferences with faculty, VSCORE module review, & HIDI/ Tech Conference / Mock Orals.

Journal Club — Thursdays 7:15am-8:15am in person at RUHS

Sessions have the following rotating weekly structure-

• 1st week – Administrative Time (Log cases, hours, reply to emails, complete modules, etc.)

• 2nd week – VESAP Review

• 3rd week – Skills Week

• 4th week – Journal Club

• 5th week - Wellness

Annual Resident Wellness Retreat- Recharge, Reconnect, & Refocus — Each year, our residents participate in a protected, off-site wellness and educational retreat designed to step away from clinical responsibilities while investing in both personal well-being and professional development. These experiences combine educational lectures and interactive learning sessions with team-building activities, shared meals, outdoor or indoor recreation, and peer reflection, creating an environment where residents can learn, recharge, and strengthen relationships outside of the clinical setting. By integrating education with wellness, our program fosters a supportive culture that promotes resilience, camaraderie, and lifelong growth.

Faculty & Staff

Meet the physicians and coordinators who lead our program

Kristyn Mannoia, MD
Kristyn Mannoia, MD
Program Director
Beatriz Leong, MD
Beatriz Leong, MD
Associate Program Director at RUHS
Andrew Son, MD
Andrew Son, MD
Associate Program Director · Site Director of Kaiser Permanente Riverside
Nathaniel Fung, MD
Nathaniel Fung, MD
Core Faculty
Brandon Law, MD
Brandon Law, MD
Core Faculty
Afshin Molkara, MD
Afshin Molkara, MD
Core Faculty · Chair of the Department of General Surgery
Stephanie Tapia, MPH
Stephanie Tapia, MPH
Program Coordinator

Current Residents

Our resident physicians by training year

PGY-1 · Class of 2031
Abdulaziz Shammaa, DO
Abdulaziz Shammaa, DO
PGY-2 · Class of 2030
Sean Johnston McCarthy, MD
Sean Johnston McCarthy, MD
PGY-3 · Class of 2029
Raquel Laleen Wolfe, MD
Raquel Laleen Wolfe, MD

Salary & Benefits

Compensation and benefits for all RUHS residency program trainees

Annual Salary by PGY Level
YearAnnual SalaryBiweekly
PGY-1 $74,880 $2,880
PGY-2 $76,977 $2,961
PGY-3 $80,003 $3,077
PGY-4 $83,160 $3,198
PGY-5 $86,563 $3,329
Effective July 1, 2025. Paid biweekly over 26 pay periods. Direct deposit available.
Benefits & Perks
Medical, Dental and Vision
Comprehensive coverage for residents and eligible dependents.
Vacation and Leave
15 days paid vacation per academic year. Sick leave included.
CME Allowance
5 days CME leave per year with an educational stipend.
Malpractice Coverage
County pension plan (PERS) enrollment available.
Wellness Program
Employee assistance program (EAP) and mental health support.
Required Disclosure Documents

Per ACGME requirements, the following documents must be made available to all applicants