Dr. Marisa Gefen, MD

Call (888) 812-1183 to become a patient of Dr. Gefen at Oak Street Health. You can also stop by your nearest center or fill out an appointment request form, and we'll be in touch.

Dr. Gefen accepts all forms of Medicare, including Original Medicare Part B, select Medicare Advantage plans, Medicare Supplement or Medigap plans and Medicare-Medicaid Plans. Call us at (888) 812-1183 to see if we accept your specific insurance.

Dr. Gefen is a Internal Medicine Specialist. At Oak Street Health, all our providers specialize in primary care for adults on Medicare.

Dr. Gefen's primary office is at 37 S 40th St, Second Floor in Philadelphia, Pennsylvania.

Dr. Gefen speaks English.

Our doctors specialize caring for anyone with Medicare, including Original Medicare Part B, select Medicare Advantage plans, Medicare Supplement or Medigap plans and Medicare-Medicaid Plans.