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Gregory R Maddex, DO

Family Medicine

Gregory Maddex, DO, is board certified in family medicine. Dr. Maddex earned his medical degree from Michigan State University, College of Osteopathic Medicine. He completed his internship at the Pacific Medical Center in Seattle. In addition to offering family medical care, Dr. Maddex also treats chemical dependency addictions and works with alternative medicine, including IV vitamins and nutritional supplements. He is most proud of his community involvement, which includes providing low-cost physical examinations and treatments to school football teams. Patients say that he is well-versed in preventive medicine as it relates to cardiovascular risk and chronic disease. They also say that Dr. Maddex is personable and dedicated to his profession. In his spare time, he enjoys watching football games and spending time with his family.
Languages spoken: English
Affiliation: Physician Associates IPA - San Dimas

Office Information

Office Address:
  • 1111 S. Grand Ave., Suite L, Diamond Bar, CA 91765
Driving Directions:
Phone Number:
  • (909) 860-2605
Office Hours:
Please call this office for hours of operation.
  These hours represent this office's business hours. The doctor's hours may vary from the office hours displayed here. Please call ahead for verification.

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Doctor Detail

Gregory R Maddex, DO

Family Medicine

Gregory Maddex, DO, is board certified in family medicine. Dr. Maddex earned his medical degree from Michigan State University, College of Osteopathic Medicine. He completed his internship at the Pacific Medical Center in Seattle. In addition to offering family medical care, Dr. Maddex also treats chemical dependency addictions and works with alternative medicine, including IV vitamins and nutritional supplements. He is most proud of his community involvement, which includes providing low-cost physical examinations and treatments to school football teams. Patients say that he is well-versed in preventive medicine as it relates to cardiovascular risk and chronic disease. They also say that Dr. Maddex is personable and dedicated to his profession. In his spare time, he enjoys watching football games and spending time with his family.
Languages spoken: English
Affiliation: Physician Associates IPA - San Dimas

Office Information

Office Address:
  • 1111 S. Grand Ave., Suite L, Diamond Bar, CA 91765
Driving Directions:
Phone Number:
  • (909) 860-2605
Office Hours:
Please call this office for hours of operation.
  These hours represent this office's business hours.

The doctor's hours may vary from the office hours displayed here.

Please call ahead for verification.

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