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  • Internal Medicine, Radiation Oncology
  • 45 years of experience
  • Walnut Creek Medical Center 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598
  • (925) 939-3000

Brief Intro

Dr. Massullo graduated from the Mayo Clinic Alix School of Medicine in 1980. He works in Walnut Creek, CA and 2 other locations and specializes in Radiation Oncology and Internal Medicine. Dr. Massullo is affiliated with San Ramon Regional Medical Center.

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Education Background

RESIDENCY

Mayo Clinic And Medical School

MEDICAL SCHOOL

Mayo Clinic Alix School Of Medicine - 1980

Languages Spoken

  • English
  • Spanish

Location & Hours

  • Walnut Creek Medical Center
  • 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598

Specialties Treated

  • Radiation Oncology
  • Internal Medicine

Insurance Accepted

* Insurance information may change frequently. Please verify directly with the provider (doctor/clinic).

  • Meritain Health
  • Kaiser Permanente
  • UnitedHealthcare
  • AARP
  • Tricare
  • Aetna
  • Medicaid
  • Humana
  • BLUE CROSS of CALIFORNIA
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  • Cancer 86
  • Cardiology, Heart & Vascular Surgery 79
  • Orthopedics 161
  • Neurology & Neurosurgery 120
  • Gastroenterology & GI Surgery 149
  • Pulmonology & Lung Surgery 161
  • Diabetes & Endocrinology 65
  • Children's Hospital 18
  • Urology 149
  • Psychiatry 91
  • Geriatrics 143
  • Rehabilitation 73
  • Obsterics & Gynecology 23
  • Ophthalmology 8
  • Ear, Nose & Throat 10
  • Rheumatology 4
  • Long Term Care 19
  • Maternity Care (Uncomplicated Pregnancy) 99