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Dr. William Kasumi, MD

Dr. William Kasumi, MD

Internal Medicine*
25+ years of experience

Dr. William Kasumi, MD is an internist in Hackensack, NJ and has over 25 years of experience in the medical field. He graduated from Albert Einstein College of Medicine in 1996. He is affiliated with Hackensack University Medical Center. He is accepting new patients.

4.1 Star Rating
Based on 9 reviews 4.1 Star Rating (9 reviews)

Practice

401 Hackensack Ave Ste 502 Hackensack, NJ 07601
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Dr. Kasumi's Reviews

Likelihood to recommend Dr. Kasumi

4.1
9 ratings, 6 with a written review
5 star
78%
78%
4 star
0%
0%
3 star
0%
0%
2 star
0%
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1 star
22%
22%

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Dr. Kasumi was very nice, comforting and knowledgeable. He is completely bilingual in Japanese and English, which really helped my mother as she has trouble communicating in English.  We had an appointment with him last month and the examination went very smoothly. The staff was also wonderful and helpful, and the wait time was minimal. We will continue seeing Dr. Kasumi to maintain our health. Thank you so much!
What went well
No results
What could be improved
No results
1 other person found this helpful
Helpful
Andrew Nakamura – Jun 12, 2020
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Dr. Kasumi is a caring doctor. I think he is very gifted in his bedside manner. He explained his impression of my symptoms to me clearly and the medications he prescribed worked. I was admitted to the hospital 2 months ago, and he was my attending doctor. He is one of the few physicians who sees patients inside the hospital and is also able to follow the patients outside of the hospital. I am now better, and I will definitely keep going to his clinic and taking his advice.
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
May 08, 2018
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Dr. William T. Kasumi is a wonderful doctor. He listens patient words well and gives a good advice!
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
robin yamyam in Bergenfield, NJ – Apr 04, 2016
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I went to Dr. kasumi's clinic and I think he and his clinic were excellent. The front desk and nurses were all courteous and doctor was well informed. He gave me medicines for my illness and the problem resolved in 2 days. I wholeheartedly recommend Dr. Kasumi.
What went well
  • Office environment
  • 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
1 other person found this helpful
Helpful
nj – Mar 18, 2016
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Dr Kasumi was just wonderful. He was warm, attentive and caring. Spent lots of time with me. I did not feel rushed. The other doctors on the case were also great. He was very knowledgeable. I felt that I was in the hands of a very capable and experienced doctor. I have bad diabetes and had Diabetic Ketoacidosis, a life-threatening condition when I came to the hospital, but he and his team made me better. I am forever indebted to Dr. Kasumi and others at Hackensack University Hospital.
What went well
  • Office environment
  • 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
2 others found this helpful
Helpful
Amy in Ft Lee, NJ – Mar 09, 2016
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Dr Kasumi treated my father in Hackensack hospital. He was not effective bordering on incompetent. His treatment was ineffective and my father is now in a much worse condition as compared to when he was admitted. Dr Kasumi seems to be only interested in discharging the patient regardless of the condition. It took a cardiologists and nephrologist to stop him from discharging my father with major renal and hear issues unresolved. The man is a menace - stay away from him.
What went well
No results
What could be improved
  • Office environment
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
  • Didn't trust the provider's decisions
Helpful
Felix Blank in Hackensack, NJ – Jan 30, 2016
I am passionate about caring for my patients and... Read More
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Know Before You Go

About Me

biography

Dr. Kasumi is a graduate of Stanford University. He attended the Albert Einstein College of Medicine where he received his M.D. with distinction in Anatomy and Statistics. After completing an internship in Internal Medicine at Jacobi Medical Center,...read more

  • 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.

  • Albert Einstein College Of Medicine

    Residency Hospital, 1999

  • Albert Einstein College Of Medicine

    Medical School, 1996
American Board of Medical Specialties®
American Board of Internal Medicine®
- 
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.

Healthgrades receives board action history for physicians and physician assistants. The information displayed here is sourced from independent information providers, such as state board websites, and may not be the most up-to-date information. Healthgrades makes no representations with respect to the accuracy of any information provided here and assumes no responsibility or liability for such information.

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  • English

  • Japanese

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Locations

Practice

Office401 Hackensack Ave Ste 502 Hackensack, NJ 07601
1
(201) 678-1900
Office15 W 44th St New York, NY 10036
2
(877) 678-1900
See all Internal Medicine Doctors in Hackensack, NJ