Summary

Dr. Sheri Marquez is a board-certified oncologist who has dedicated over three decades to treating cancer patients. She earned her medical degree from the University of California, San Francisco School of Medicine and completed her residency at Stanford University Hospital, followed by specialized training in radiation oncology at Alameda County Medical Center. With 31 years of experience in the field, Dr. Marquez brings extensive expertise to her practice. She provides care in English.

Dr. Marquez practices at The Oncology Institute in Long Beach, California, where she specializes in treating various forms of prostate cancer, including advanced and recurrent cases. Her treatment approach includes advanced procedures such as radiation therapy and brachytherapy, along with diagnostic imaging through CT scans. Patients consistently rate her care highly, giving her an average rating of 5.0. She focuses on providing comprehensive cancer care with a particular emphasis on prostate cancer management and radiation oncology treatments.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 5
  • 31 years of experience
  • 38 insurance plans accepted
  • speaks English
  • Stanford Univ Hosp, Radiation Oncology Alameda Co Med Ctr, Flexible Or Transitional Year
  • 2 written reviews
  • 1 award
  • 1 specialty
  • 1 area of expertise
  • 1 office location
  • Female

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Awards

  • Vitals Preferred Provider

    • Vitals Preferred Provider Award
      • Preferred Provider badge recognizes providers that are committed to transparency, responsiveness and great service to patients, and have earned a high patient satisfaction rating.

  • Click for our Methodology

Office Location

The Oncology Institute

2440 E South StLong Beach, CA 90805
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

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Sheri Marquez, MD
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Sheri Marquez, MDDr. Virginia Von Schaefer, MDDr. Ronald Tang, DODr. Shahrooz Eshaghian, MD, FACP
OncologyOncologyOncologyOncology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.6 
31 Years of Experience 43 Years of Experience 18 Years of Experience 20 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English Speaks English, Cantonese, Spanish Speaks English, Farsi, Hebrew
Long Beach , CASan Clemente , CAMontebello , CALos Angeles , CA
Med School: University of Ca, San Francisco, Sch of Med, San Francisco Ca Med School: Columbia University College Of Physicians & Surgeons Med School: Western Univ Health Sci College Of Osteopathic Medicine Of The Pacific Med School: Albert Einstein College of Medicine
Current Profile
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Insurance Plans Accepted by Sheri Marquez

  • Aetna
  • Aetna - HMO
  • Alignment Health Plan
  • Alignment Health Plan - HMO
  • AltaMed Senior BuenaCare (PACE)
  • Anthem Blue Cross
  • BLUE CROSS of CALIFORNIA - HMO
  • Blue Shield of California
  • Blue Shield of California - HMO
  • Brand New Day
  • Bright Health
  • CalOptima
  • CareMore - HMO
  • Cigna
  • Contra Costa Health Plan
  • FamilyCare Health Plans
  • Health Alliance
  • Health Net - HMO
  • HealthFirst (NY)
  • HealthPartners
  • Humana
  • Humana - HMO
  • Imperial Health Plan of California
  • L.A. Care Health Plan
  • L.A. Care Health Plan - HMO
  • L.A. Care Health Plan - Medicaid (Managed)
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Molina Healthcare
  • Optum Health
  • Oscar Health Insurance
  • SCAN Health Plan
  • SCAN Health Plan - HMO
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • University of Arizona Health Plans
  • Wellcare

Medical Specialties

Sheri Marquez has the following specialty

Specialty Expertise

Sheri Marquez has the following area of expertise

  • Radiation Oncology

Certifications, License, & Education

31 Years Experience

Sheri Marquez holds an expired medical license in the state of California.

Medical License

Medical Doctor with an expired medical license in the state of California that expired in 2025.

Education & Training

Residency

Completed their residency at Stanford Univ Hosp, Radiation Oncology Alameda Co Med Ctr, Flexible Or Transitional Year.

Medical School

Graduated from University of Ca, San Francisco, Sch of Med, San Francisco Ca in 1995.

NPI Number

Sheri Marquez's NPI number is 1538149224.

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Frequently Asked Questions

What languages does Sheri Marquez speak?
Sheri Marquez speaks English.
How can I make an appointment with Sheri Marquez?
You can find contact information for Sheri Marquez here on Vitals.
Does Sheri Marquez accept virtual/telehealth appointments?
Sheri Marquez has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Sheri Marquez's office located?
Sheri Marquez's office is located at 2440 E South St, Long Beach, CA, 90805.
Does Sheri Marquez accept my insurance?
You can see the insurance plans that Sheri Marquez accepts on their Vitals profile.

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