See All Oncologists in New York, NY
Dr. Marshall Posner, MD

Dr. Marshall Posner, MD

Age 71 Medical Oncology M

Telehealth available

New Patient

(212) 235-1189

Current Patient

Show number (212) 241-6756

Dr. Marshall Posner, MD is a medical oncology specialist in New York, NY. Dr. Posner completed a residency at Boston Medical Center. He currently practices at Ruttenberg Treatment Center and is affiliated with Mount Sinai Hospital. He accepts multiple insurance plans. Dr. Posner is board certified in Internal Medicine.


New Patient? (212) 235-1189
  1. Ruttenberg Treatment Center

    1. 1
      Ruttenberg Treatment Center
      1470 Madison Ave Fl 3, New York, NY 10029 Call
      Existing Patients: (212) 241-6756
      New Patients:
      (212) 235-1189


  • Harvard Medical School, Fellowship Hospital — 1981
  • Boston Medical Center, Residency Hospital — 1978
  • Boston Medical Center, Internship Hospital — 1976

Insurance Accepted

  • Aetna
  • Anthem
  • Blue Cross Blue Shield of Louisiana
  • Blue Cross Blue Shield of Massachusetts
  • Capital District Physician's Health Plan (CDPHP)
  • CareFirst Blue Cross Blue Shield
  • Cigna
  • EmblemHealth
  • Empire Blue Cross Blue Shield
  • First Health (Coventry Health Care)
  • HealthFirst
  • Humana
  • MultiPlan

* Please verify this information when scheduling an appointment.

Patient Satisfaction

Likelihood to recommend Dr. Posner
Based on 2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star

Leave a review

How likely are you to recommend Dr. Posner?

(Select your rating)
See more reviews on Healthgrades
Photo: Dr. Marshall Posner, MD
Dr. Marshall Posner, MD
  • Likelihood of recommending Dr. Posner to family and friends
  • Tell us about your experience with Dr. Posner

Dr. Posner's Office & Staff

  • Ease of scheduling urgent appointments
  • Office environment, cleanliness, comfort, etc.
  • Staff friendliness and courteousness
  • Total wait time (waiting & exam rooms)

Experience with Dr. Posner

  • Level of trust in provider's decisions
  • How well provider explains medical condition(s)
  • How well provider listens and answers questions
  • Spends appropriate amount of time with patients

Tell Us About Yourself

  • Display Name:
  • City, State:
  • Your gender:
  • Your age group:
  • Number of office visits you've had in the last 2 years:

Finish Here

  • How would you like to confirm your survey information?
  • Phone Number:
    Standard text messaging and data rates may apply.
Thank you for sharing your feedback about Dr. Marshall Posner, MD.

Hospital Affiliations

  • Mount Sinai Hospital
You Might Also Like
If lung cancer is a war and chemotherapy is the nuclear option, then targeted therapy is a team of commandos sneaking behind enemy lines and taking out the general. Chemo works by killing cancer cells, which divide more often than other cells. Chemo can a...