Dr. Evan Diamond, MD, Smithtown, NY | Oncologist

What patients are saying

Overall rating

4.97

Average wait time

4.11

Bedside manner

5.00

“Excellent office, very friendly, and the doctor had a wonderful demeanor. Very comforting and a pleasure to speak with.”

Lucas B.December 25, 2025

“Very efficient & smiling office staff. They can test your blood immediately which was impressive. Dr. Diamond very personable. Asked questions about you before starting to explain medical issues. That was very nice, I didn’t feel like just a number. I would recommend Dr. Diamond.”

Marilyn W.July 8, 2024

About Dr. Evan Diamond

Dr. Evan Diamond is a hematologist-oncologist at New York Cancer & Blood Specialists. After receiving his undergraduate degree from the University of Michigan, Dr. Diamond obtained his medical degree from Ross University School of Medicine. He returned to NY, completed his Internal Medicine Residency at New York-Presbyterian Queens Hospital, and was named chief resident. To conclude his post-graduate training, he completed his fellowship in Hematology and Oncology at Newark Beth Israel Medical Center, where he was the recipient of the Lester Z. Lieberman Award for his commitment to humanism in medicine and was named a chief fellow. Dr. Diamond has experience in research and scholarly activities with publications and poster presentations. In addition, he has a particular interest in survivorship, promoting wellness, and collaborating with others to provide the best possible treatment care and outcome for his patients.

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In-network insurances

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Areas of expertise

This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.

Low white blood cell count

Chronic high blood pressure

Chronic anemia

Low platelet count

Low white blood cell count

Chronic high blood pressure

Chronic anemia

Low platelet count

Office locations

New York Cancer & Blood Specialists (1 of 2)

48 Route 25A, Suite 209, Smithtown, NY 11787

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New York Cancer & Blood Specialists (2 of 2)

365 E Main St, Patchogue, NY 11772

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1 of 2

Education and background

Practice names

New York Cancer & Blood Specialists

Education and training

Medical School - Ross University School of Medicine, Doctor of Medicine
NewYork-Presbyterian Queens Hospital, Residency in Internal Medicine
Newark Beth Israel Medical Center, Fellowship in Hematology and Oncology

Awards and publications

Recipient of the Lester Z. Lieberman Award for his Commitment to Humanism in Medicine

Languages spoken

English

Provider's gender

Male

NPI number

1457771008

Patient reviews

All reviews have been submitted by patients after interacting with the practice.

Overall rating

4.97

Wait time

4.11

Bedside manner

5.00

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40 reviews

Most relevant

Excellent office, very friendly, and the doctor had a wonderful demeanor. Very comforting and a pleasure to speak with.

December 25, 2025Lucas B.Verified patient

Very efficient & smiling office staff. They can test your blood immediately which was impressive. Dr. Diamond very personable. Asked questions about you before starting to explain medical issues. That was very nice, I didn’t feel like just a number. I would recommend Dr. Diamond.

July 8, 2024Marilyn W.Verified patient

January 28, 2026Josephine N.Verified patient

Less than 6 months agoInitials hidden

Less than 1 year agoInitials hidden

June 5, 2025Jennifer G.Verified patient

January 15, 2025Florence D.Verified patient

More than 1 year agoInitials hidden

May 6, 2024Noah K.Verified patient

More than 1 year agoInitials hidden

More than 1 year agoInitials hiddenSource: Partner

Frequently asked questions

How soon can I make an appointment with Dr. Evan Diamond?

Generally, Dr. Evan Diamond has appointments available on Zocdoc within 1 week. You can see Dr. Diamond's earliest availability on Zocdoc and make an appointment online.

Is Dr. Evan Diamond accepting new patients?

Dr. Evan Diamond generally accepts new patients on Zocdoc. You can see Dr. Diamond's earliest availability on Zocdoc and schedule an appointment online.

Does Dr. Evan Diamond accept my insurance?

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Can I make an appointment with Dr. Evan Diamond online?

Yes, you can make an appointment online with Dr. Diamond using Zocdoc. It’s simple, secure, and free.

What practice does Dr. Evan Diamond work with?

Dr. Evan Diamond works with New York Cancer & Blood Specialists.

Where is Dr. Evan Diamond's office located?

Dr. Evan Diamond has 2 office locations, including in Smithtown and Patchogue, view full addresses on Dr. Diamond's profile.

What are common reasons for patients to see Dr. Evan Diamond?

Dr. Evan Diamond frequently sees patients for Anemia, Colon Cancer Screening, Oncology Consultation, Oncology Follow Up, and Ovarian Cancer. You can see other visit reasons for Dr. Evan Diamond on their profile.

What languages does Dr. Evan Diamond speak?

Dr. Evan Diamond speaks English.

How do patients rate Dr. Evan Diamond in reviews?

40 patients have reviewed Dr. Evan Diamond. The overall rating for this doctor is 4.97/5. They have a 5/5 rating for bedside manner and a 4.11/5 rating for wait time. You can read individual reviews and ratings on their profile.