Marisa Gefen, MD

Internal Medicine
Rated 4.68 out of 5 stars
(22 ratings)
  • University City 37 S 40th St, Second Floor, Philadelphia, PA 19104
  • Accepts most Medicare plans
    View insurance accepted

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Marisa Gefen, MD

Meet Marisa Gefen, MD

Marisa Gefen is a Internist at our University City primary care doctor’s office. Dr. Gefen is excited to get to know you and provide the personalized care you deserve. Our primary care providers, and supporting care team, develop preventive care plans to help you achieve your physical and mental health goals. Get the care you deserve. Schedule an in-person, phone, or video visit today.

My education and background

Board certifications
  • American Board of Internal Medicine
Medical school
Jefferson Medical College
Residency
Thomas Jefferson University
Languages spoken
English
Gender
Female

What I treat

Specialties
  • Internal Medicine
Conditions
  • Asthma
  • Arteriosclerosis
  • Anemia
  • Osteoarthritis
  • Diabetes
  • Mental Health
  • Kidney Disease
  • Heart Disease
  • Skin, Hair, and Nails
  • Allergies
  • Cold and Flu

Insurance Accepted

Marisa Gefen, MD accepts the following insurance. Check your coverage or call us at (888) 812-1183 to see if we accept your specific insurance.

Original Medicare

Marisa Gefen, MD accepts Original Medicare Part A and Part B plans.

Medicare Supplement

Marisa Gefen, MD accepts all Medicare Supplement Insurance (Medigap) plans.

Medicare Advantage

Marisa Gefen, MD accepts most Medicare Advantage plans. Before your appointment, please confirm with your insurance company that your specific insurance plan is accepted.
View all plans

My Location

University City

Rated 4.57 out of 5 stars
View Location
The exterior of the University City primary care clinic in Philadelphia, Pennsylvania.

Common questions

  • How do I become a patient of Marisa Gefen?

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

  • What insurance does Marisa Gefen accept?

    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.

  • What is Marisa Gefen's specialty?

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

  • Where is Marisa Gefen's office located?

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

  • What languages does Marisa Gefen speak?

    Dr. Gefen speaks English.

  • Who can become a patient of Marisa Gefen?

    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.

Reviews and ratings

Summary

Rated 4.68 out of 5 stars
(22 ratings)

The patient rating score is an average of all responses to an independent patient satisfaction survey administered by Qualtrics and patient feedback submitted via public review sites. All ratings and comments are displayed in their entirety.

5 star
19
4 star
0
3 star
2
2 star
1
1 star
0

Written reviews (11)

Rated 5 out of 5 stars
Apr 22, 2026
I love Dr gefen she is the best doctor. She makes sure her patience haves very thing they need. I love her staff as well.I would recommend my friend and family to her.
Rated 5 out of 5 stars
Feb 25, 2026
Dr. Gefen always take time to listen to me. Very caring, understanding with my health and mental health has been my doctor for years she has gotten me through some many things always there' when I need her. She is my favorite doctor. I just love her
Rated 5 out of 5 stars
Dec 11, 2025
Dr Gefern is the best Dr i ever had she knows what she is doing she is a caring person ❤️ ♥️
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