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Dr. John Mascarenhas, MD

Dr. John Mascarenhas, MD

Medical Oncology*

Dr. John Mascarenhas, MD is a medical oncologist in New York, NY. He is affiliated with Mount Sinai Hospital. He is accepting new patients and telehealth appointments.

4.7 Star Rating
Based on 15 reviews 4.7 Star Rating (15 reviews)

At a Glance

  • Area of ExpertiseDr. Mascarenhas specializes in the area of Hematology. See board certifications
  • Explains Conditions WellPatients said this doctor explains conditions well. See reviews
  • Offers TelehealthThis doctor offers telehealth appointments. Call the office to schedule an appointment.
  • TrustworthyPatients said this doctor is trustworthy. See reviews

More Oncology Specialists at Ruttenberg Treatment Center

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Dr. Mascarenhas' Reviews

Likelihood to recommend Dr. Mascarenhas

4.7

15 ratings, 8 with a written review
5 Star
93%
93%
4 Star
0%
0%
3 Star
0%
0%
2 Star
0%
0%
1 Star
7%
7%

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RecentHighestLowestMost Helpful
What went well
  • Appointment scheduling
  • Staff friendliness
  • Wait times
What could be improved
  • I didn't feel respected
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
Helpful
Jan 08, 2025
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Cary Gruber – Nov 07, 2023
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What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
tracy thorne – Dec 06, 2022
×Post a ResponseAre you Dr. John Mascarenhas, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
Helpful
Oct 03, 2021
×Post a ResponseAre you Dr. John Mascarenhas, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
1 person found this helpful
Helpful
Sep 13, 2021
×Post a ResponseAre you Dr. John Mascarenhas, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
What could be improved
No results
Helpful
Jul 27, 2021
×Post a ResponseAre you Dr. John Mascarenhas, MD?
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
  • Wait times
What could be improved
No results
Helpful
Chris Chiarello – May 22, 2021
×Post a ResponseAre you Dr. John Mascarenhas, MD?
What went well
  • Listened & answered questions
  • Explained conditions well
  • Staff friendliness
  • Appointment wasn't rushed
  • Trusted the provider's decisions
What could be improved
No results
24 people found this helpful
Helpful
Oct 09, 2016
×Post a ResponseAre you Dr. John Mascarenhas, MD?

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About Me

biography

Dr. John Mascarenhas, MD is a medical oncologist in New York, NY. He is affiliated with Mount Sinai Hospital. He is accepting new patients and telehealth appointments.
  • Medical Oncology

  • Hematology & Oncology

*Healthgrades does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.

  • Mt Sinai School Of Medicine Hospital

    Fellowship Hospital, 2008
  • Rhode Island Hospital Brown University

    Residency Hospital, 2005
American Board of Medical Specialties®
American Board of Internal Medicine®
Hematology
For detailed information about any of the below board actions, please search for the provider's records on the linked state licensing board or the Federation of State Medical Boards. To learn more about the difference between these sources, please refer to our FAQs.
Healthgrades has not received any data indicating a board action exists for this provider.

Affiliated Hospitals

  • Mount Sinai Hospital

    1 Gustave L Levy Pl
    New York, NY 10029
    Recipient of 27
    hospital awards

    How patients felt about the care they received at this hospital.

    85%
    Patients said they were given information about recovering at home

    1% higher than the national average

    76%
    Patients said that doctors always listened to them and explained things well
    View all patient feedback
Learn more about how Healthgrades measures Hospital Quality