Dr. William Kasumi, MD

Dr. William Kasumi, MD

Internal Medicine  ·  
Male  ·  
Age 49
Dr. William Kasumi, MD is an internal medicine specialist in Hackensack, NJ and has been practicing for 19 years. He graduated from Albert Einstein College of Medicine of Yeshiva University in 1996 and specializes in internal medicine.Read his story

401 Hackensack Ave Fl 5

Hackensack, NJ 07601

Contact Information

(201) 678-1900

Insurance Accepted

  • Aetna
  • Blue Cross Blue Shield
  • Cigna
  • Guardian
  • Humana
  • Medicaid
  • UnitedHealthCare

*Please verify this information when scheduling an appointment.

Learn about Dr. Kasumi

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Dr. Kasumi's Experience

Dr. Kasumi's experience matches your search based on the following criteria:
  • Based on total number of patients treated over the last 12 months
  • Specializes in Internal Medicine
  • Board certified in Internal Medicine
  • No malpractice claims found
  • No sanctions found
  • No board actions found

Dr. Kasumi's bio

This content was provided by Dr. Kasumi "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, Dr. Kasumi was a resident at Rutgers University in New Jersey. Dr. Kasumi was born overseas in Tokyo, Japan, and came to the United States when he was young. "

1  Specialties

  • Internal Medicine

1  Board Certifications

  • Internal Medicine
    Accredited by: American Board of Internal Medicine*

106  Conditions Treated

Read Less

12  Procedures

  • Anemia and Iron Deficiency Screening
  • Arrhythmia Screening
  • Diabetes Screening
  • Electrocardiogram (EKG)
  • Immunization
  • Liver Function Test
  • Osteoporosis Screening
  • Physical Examination
  • Thyroid Screening
  • Urinalysis
  • Vaccination
  • Wellness Examination

Background Check

0 Malpractice Claims

No malpractice history found for New Jersey.

0 Sanctions

No sanctions history found for the years that Healthgrades collects data.

0 Board Actions

No board actions found for the years that Healthgrades collects data.


  • Albert Einstein College of Medicine of Yeshiva University
    Medical School | Graduated 1996
  • Albert Einstein College Med
    Residency Hospital | Completed 1999

Awards & Recognition

Awards & Honors
  • Healthgrades Honor Roll
Media & Publications

Dr. Kasumi has no media or publications listed.

Languages Spoken

  • English
  • Japanese

Memberships & Professional Affiliations

Dr. Kasumi does not have any memberships or affiliations listed. If you are Dr. Kasumi and would like to add memberships or affiliations, please update your profile.

Dr. Kasumi's Reviews

Likelihood of recommending Dr. Kasumi to family and friends
8 total reviews (5 have comments)

Likelihood to Recommend (8)

  • 5
  • 4
  • 3
  • 2
  • 1

Dr. Kasumi's Performance

  • Trustworthiness

  • Explains condition(s) well

  • Answers questions

  • Time well spent


Office & Staff Performance

  • Scheduling

  • Office environment

  • Staff friendliness

  • Average wait time

    10 to 15 minutes

Patient Comments (5)

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...more
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Dr. William T. Kasumi is a wonderful doctor. He listens patient words well and gives a good advice!
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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.
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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...more
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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...more
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I am passionate about caring for my patients and take tremendous pride in the services I, together with the hospital staff, perform. While it is very unfortunate that someone may express frustration with the care provided to a loved one, the physician-patient privilege legally prevent me from submitting a detailed response. Though such a response, if permitted, would reveal that the complaint is neither factually accurate nor fair. I invite you to contact me directly if you have any questions

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