Physician-led Care
Multilingual Staff
Online Scheduling Available
Open Monday Through Saturday
Ultrasound & X-Ray Services
Diagnostic Imaging and Preventive Care Designed Around You
Whether you need diagnostic imaging to investigate a health concern or preventive screening to stay ahead of future risks, our goal is to make the process simple, convenient, and informative.
At First Medical Center, we focus on:
- Accurate diagnostic imaging
- Preventive health screening
- Physician-guided care
- Convenient scheduling
- Clear communication
We believe patients should feel informed, supported, and confident throughout their healthcare journey.
Meet Our Physicians
Dr. Jaesoo Pak
Dr. Jaesoo Pak is an experienced physician specializing in gastroenterology. He earned his medical degree from George Washington University School of Medicine and completed advanced training at a UCLA-affiliated hospital and Lahey Clinic, a Harvard Medical School affiliate.
Dr. Pak is committed to helping patients gain clear answers through accurate diagnostics, preventive screening, and personalized care.
View ProfileDr. Yoon Suk Pak
Dr. Yoon Suk Pak is an experienced family medicine physician who provides comprehensive healthcare with an emphasis on prevention, wellness, and long-term health management.
A graduate of George Washington University School of Medicine, he completed his residency training at UC Irvine Medical Center and has spent years caring for individuals and families in Southern California.
View ProfileDiagnostic Imaging & Preventive Screening Services
At First Medical Center, we combine advanced imaging technology with proactive health screening to help patients make informed healthcare decisions.
Ultrasound Imaging
Safe, non-invasive imaging for abdominal, pelvic, thyroid, vascular, and other diagnostic needs.
Learn MoreComprehensive Care Plans
Age-based preventive screening packages designed for patients in their 40s, 50s, and 60s.
View PlansExpert Image Interpretation for Timely Results
To support timely and accurate diagnosis, CT and ultrasound studies are interpreted by an experienced teleradiology group. Their detailed reports help referring healthcare providers make informed treatment decisions while allowing First Medical Center to provide efficient imaging services close to home.
Health Screening Packages Tailored to Your Stage of Life
Comprehensive Care Plans are structured, age-based health screening packages designed to give patients a clearer picture of their health before concerns become more serious. Whether you are in your 40s, 50s, or 60s, each plan is built around the screenings that matter most at that stage of life.
Your 30s: Plans A & B
Build a health baseline and catch early warning signs before they become serious. Plans A and B are designed for proactive patients entering their most productive decade.
Your 40s: Plans C & D
Stay ahead of the health changes that arrive in your 40s. Plans C and D add deeper screening focused on cardiovascular, cancer, and metabolic health.
Your 50s and Up: Plans E & F
Thorough screening built around the health priorities of your 50s and beyond. Plans E and F offer the most complete coverage in the Comprehensive Care Plans series.
Why Choose First Medical Center?
- Established Community PresenceProudly serving Cerritos and surrounding communities with accessible diagnostic imaging and preventive health services.
- AAAHC-Accredited FacilityCommitted to maintaining high standards for quality, patient safety, and patient-centered care.
- Convenient Access to Imagingultrasound imaging, and digital X-rays available in one location, reducing the need to visit multiple facilities.
- Flexible Scheduling OptionsOnline scheduling and Saturday appointments help patients access care on their schedule.
- Multilingual SupportOur staff speaks English, Spanish and Korean, helping patients feel informed and comfortable throughout their visit.
- Expert Image Interpretationultrasound images are interpreted by an experienced teleradiology group, providing diagnostic reporting to support your healthcare provider.
Insurance & Payment Information
Have questions about insurance coverage or payment options? Our team is here to help you understand your options and answer your questions.
Contact UsFrequently Asked Questions
First Medical Center offers ultrasound imaging, digital X-ray, and Comprehensive Care Plans for patients in Cerritos. Schedule an appointment online or call (562) 809-8082.
Many imaging services can be scheduled with a physician referral, and some may be available for self-referral. Call (562) 809-8082 or book online to confirm.
Most Ultrasounds at First Medical Center take 20 to 30 minutes, including preparation
First Medical Center is open Monday through Friday from 9 AM to 5 PM, and Wednesday and Saturday from 9 AM to 1 PM. Online scheduling is available anytime.
Yes, First Medical Center has multilingual staff who speak Korean, Spanish and English. The practice proudly serves the Korean-speaking community in Cerritos and surrounding areas. Call (562) 809-8082 to know more.
Take the Next Step Toward Better Health
Whether you're seeking diagnostic imaging or proactive health screening, First Medical Center provides physician-led care designed around accuracy, convenience, and patient confidence.