Summary

Dr. Geoffrey Geiger is an internal medicine physician who specializes in radiation oncology, bringing two decades of clinical experience to his practice. He earned his medical degree from the prestigious Perelman School of Medicine at the University of Pennsylvania, where he developed his foundation in comprehensive patient care. Dr. Geiger provides care to patients in English and has built his expertise over 20 years of dedicated practice in oncology services.

Dr. Geiger practices at The Oncology Institute locations in Downey and Covina, California, where he focuses on treating various forms of cancer. His clinical expertise includes caring for patients with breast cancer and prostate cancer, including those with advanced or recurring breast cancer. He performs radiation therapy treatments, external beam radiation, and systemic radiation therapy to help patients in their cancer care journey. Patients have given Dr. Geiger an average rating of 4.7 stars, reflecting their confidence in his care.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.7
  • 20 years of experience
  • 25 insurance plans accepted
  • speaks English
  • Perelman School of Medicine at the University of Pennsylvania
  • 14 written reviews
  • 2 specialties
  • 7 areas of expertise
  • 2 office locations
  • Male

Patients’ Perspective

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

Office Locations

Geoffrey Geiger has 2 locations

The Oncology Institute - Downey Radiation Oncology

10226 Lakewood BlvdDowney, CA 90241
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

The Oncology Institute - Covina Radiation Oncology

554 E San Bernardino Rd Ste 105Covina, CA 91723
MonClosed
Tue8:00 am - 5:00 pm
WedClosed
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

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Geoffrey Geiger, MDDr. Adewumi Bakare DMSc, PA-CDr. Salman Ahmed Khan, MDMarcel Benjamin, PharmD
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
4.7 
3.3 
20 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English, Spanish, Yoruba, French, Russian, Arabic, Chinese, Chinese (Mandarin) Speaks English Speaks English
Downey , CAMesquite , TXSan Marino , CACosta Mesa , CA
Med School: Perelman School of Medicine at the University of Pennsylvania Med School: University of Lynchburg - DMSc
Current Profile
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Insurance Plans Accepted by Geoffrey Geiger

  • Aetna
  • Aetna - HMO
  • Aetna Better Health
  • Alignment Health Plan
  • Alignment Health Plan - HMO
  • AltaMed Senior BuenaCare (PACE)
  • Anthem Blue Cross
  • BLUE CROSS of CALIFORNIA - HMO
  • Brand New Day
  • CalOptima
  • Health Net - HMO
  • Humana
  • Humana - HMO
  • Inland Empire Health Plan
  • 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
  • SCAN Health Plan
  • SCAN Health Plan - HMO
  • UnitedHealthcare
  • UnitedHealthcare - HMO

Medical Specialties

Geoffrey Geiger has the following 2 specialties

Specialty Expertise

Geoffrey Geiger has the following 7 areas of expertise

  • Cancer
  • Hodgkin's Lymphoma
  • Mouth Cancer
  • Radiation Oncology
  • Radiation Therapy
  • Throat Cancer (Pharyngeal Neoplasm)
  • Uterine Cancer

Certifications, License, & Education

20 Years Experience

Geoffrey Geiger 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 2026.

Education & Training

Medical School

Graduated from Perelman School of Medicine at the University of Pennsylvania in 2007 and Perelman School of Medicine University of Pennsylvania in 2006.

NPI Number

Geoffrey Geiger's NPI number is 1285836619.

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Frequently Asked Questions

Is Geoffrey Geiger accepting new patients?
Geoffrey Geiger is accepting new patients on Vitals. View Geoffrey Geiger's profile on Vitals to make an appointment.
Does Geoffrey Geiger accept virtual/telehealth appointments?
Geoffrey Geiger has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Geoffrey Geiger speak?
Geoffrey Geiger speaks English.
Where is Geoffrey Geiger's office located?
Geoffrey Geiger's office is located at 10226 Lakewood Blvd, Downey, CA, 90241.
Does Geoffrey Geiger accept my insurance?
You can see the insurance plans that Geoffrey Geiger accepts on their Vitals profile.

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