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Dr. Catherine Diefenbach, MD

Dr. Catherine Diefenbach, MD

Hematology*
20+ years of experience

Dr. Catherine Diefenbach, MD is a hematologist in New York, NY and has over 20 years of experience in the medical field. She graduated from University of Pennsylvania Perelman School of Medicine in 2001. She is affiliated with NYU Langone Hospitals. She is accepting new patients and telehealth appointments.

3.8 Star Rating
Based on 10 reviews 3.8 Star Rating (10 reviews)

Practice

240 E 38th St Fl 19 New York, NY 10016
Telehealth available

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Compare Dr. Diefenbach with our nearby Hematologists at Newyork-Presbyterian Brooklyn Methodist Hospital.

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Dr. Diefenbach's Reviews

Likelihood to recommend Dr. Diefenbach

3.8
10 ratings, 5 with a written review
5 star
70%
70%
4 star
0%
0%
3 star
0%
0%
2 star
0%
0%
1 star
30%
30%

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Exceptional
I believe others should be cautious about the negative reviews of Dr. Diefenbach. I recently had an appointment with her for a second opinion, and my experience was exceptional. She was extremely knowledgeable about my condition and made me feel confident that I was in the right place. I highly recommend her to anyone seeking expert care.
What went well
  • I felt respected
  • 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 other person found this helpful
Helpful
Long Islander – Oct 22, 2024
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Dr. Diefenbach is one of the best doctors I have been to see. I am a retired Biomedical Technician and have 27 years of experience working with doctors. I have/had follicular lymphoma discovered in 2020. I have been cancer free for 2 & 1/5 years. Dr Diefenbach saved my life. I find her to be amount the best doctors I have known, and I should know. I worked with many doctors over more than a quarter of a century.
What went well
  • Office environment
  • 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
3 others found this helpful
Helpful
Emilio Rodriguez in Queens, N.Y. – Feb 03, 2024
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Was treated by Dr Diefenbach for lymphoma. Would definitely recommend her to anyone with this condition. She combines both very strong knowledge with a style that is very useful at putting you at ease. Both her and her team had a very positive impact in my treatment and I'm very grateful of being their patient.
What went well
  • Office environment
  • 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
2 others found this helpful
Helpful
New York, NY – Oct 08, 2018
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Don't expect any sympathy from Doctor Diefenbach. She's unemotional and rather unfriendly. Also, don't expect her to return your calls or emails, or to bother explaining to you what your test results mean (she is way too busy). After that first visit, expect to deal exclusively with her assistants.
What went well
  • Office environment
  • Staff friendliness
What could be improved
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
7 others found this helpful
Helpful
Woodside, NY – Nov 14, 2017
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An amazing Dr. who is one of the best in her field. Subject matter expert in Lymphoma, highly personable/family-oriented yet professional at every level. Responsive, timely, caring, interactive... all the things you would hope for in world-class patient care. Her team is also second to none.
What went well
  • Office environment
  • 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
4 others found this helpful
Helpful
Keith W. in New Jersey – Mar 09, 2017
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Know Before You Go

About Me

biography

Dr. Catherine Diefenbach, MD is a hematologist in New York, NY and has over 20 years of experience in the medical field. She graduated from University of Pennsylvania Perelman School of Medicine in 2001. She is affiliated with NYU Langone Hospitals. She is accepting new patients and telehealth appointments.

  • Hematology

  • Internal Medicine

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

  • University Of Pennsylvania Perelman School Of Medicine

    Medical School, 2001
American Board of Medical Specialties®
American Board of Internal Medicine®
- 
Hematology
- 
Internal Medicine
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.

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Locations

Practice

Office240 E 38th St Fl 19 New York, NY 10016
1
Office160 E 34th St New York, NY 10016
2

Practice

Nyc Health Hospitals / Bellevue462 1st Ave New York, NY 10016
3
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