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Masaru Ishii

Masaru Ishii, MD, PhD

OtologyNeurotologyOtolaryngology

Accepting New Patients
Online Booking

Highlights

Age Groups Seen

  • Young Adult 18-25
  • Adult 26-64

Languages

  • English

Gender

Male

Johns Hopkins Affiliations:

  • Johns Hopkins School of Medicine Faculty

About Masaru Ishii

Primary Academic Title

Associate Professor of Otolaryngology-Head and Neck Surgery

Johns Hopkins Physician

Logo for Johns Hopkins Physician

Background

Dr. Masaru Ishii graduated from University of Pennsylvania Perelman School of Medicine. His clinical specialties include surgical management of nasal airway obstruction, chronic sinusitis and sinonasal tumors, as well as endoscopic surgery for skull base tumors.

Recent News Articles and Media Coverage

Additional Academic Titles

Associate Professor of Neurological Surgery

Locations

  1. Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville
    • 10803 Falls Road, Pavilion III STE 2300, Lutherville, MD 21093
    • Get Directions
  2. Levi Watkins, Jr., M.D., Outpatient Center

Expertise

Education

  • Residency: Hospital of the University of Pennsylvania , 2002
  • Medical Education: University of Pennsylvania School of Medicine, MD PhD, 1997

Board Certifications

  • Otolaryngology: American Board of Otolaryngology - Head and Neck Surgery, 2003

Insurance

Please contact the location directly to confirm your health plan is accepted.
Search plans
  • Aetna
  • CareFirst
  • Cigna
  • First Health
  • Geisinger Health Plan
  • HealthSmart/Accel
  • Johns Hopkins Health Plans
  • MultiPlan
  • Pennsylvania's Preferred Health Networks (PPHN)
  • Point Comfort Underwriters
  • Private Healthcare Systems (PHCS)
  • Veteran Affairs Community Care Network (Optum-VACCN)

Ratings & Reviews

4.9 out of 5

127 ratings, 57 reviews

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

Overall Rating by Patient
Provider Listened Carefully
Provider Explained Things Clearly
Provider Knew Medical History
Provider Showed Respect
Provider Spent Enough Time
Search reviews
    5 out of 5 stars
    Reviewed on 3/10/2026

    Over the years I've known Dr.Ishii, he has continually provided excellent care and assessment for my needs. Since my surgery he has continued his expert care and advice. He takes the time to listen to my concerns And provide needed guidance during follow-up visits. I continue to be 100% satisfied with his service and care.

    5 out of 5 stars
    Reviewed on 3/2/2026

    Dr Ishi is very easy to talk to

    5 out of 5 stars
    Reviewed on 3/2/2026

    Dr. Ishii is very patient and answers all my questions and explains everything.

    5 out of 5 stars
    Reviewed on 2/24/2026

    Dr Ishii always listens to my questions and concerns. He explains step by step what he's doing and always is very respectful.

    5 out of 5 stars
    Reviewed on 2/24/2026

    Dr. Ishii is one of the most caring doctors I have ever had. Although my medical situation is complicated, Dr. Ishii has gotten me to a place where it's mostly manageable and is always trying to improve it even more. He is the only physician that didn't just give up on me because it's a complex case and I'm grateful.

    5 out of 5 stars
    Reviewed on 2/16/2026

    I've been with Doctor Ishii almost twenty years. I feel I'm receiving the best possible care from him and his team.

    5 out of 5 stars
    Reviewed on 2/16/2026

    Dr. Ishii is professional and courteous. I can't say enough good things about him or the care I receive from him.

    5 out of 5 stars
    Reviewed on 2/16/2026

    Dr Ishii is excellent

    5 out of 5 stars
    Reviewed on 2/10/2026

    Dr. Ishii is very professional, courteous, and polite. He explains everything to my level of understanding. Very respectful.

    5 out of 5 stars
    Reviewed on 2/10/2026

    Dr. Ishii takes the time to really know me, understand my concerns and with detail explain solutions and next steps. 100% best provider I have ever had!

    5 out of 5 stars
    Reviewed on 2/9/2026

    Dr. Ishii is professional, explains things in a way that anyone can understand, is caring and thoughtful and thorough.

    5 out of 5 stars
    Reviewed on 2/2/2026

    I am beyond grateful for Dr. Masaru Ishii. He educated me on things I feel I should have been told about decades ago, as well as gave me best practices to move forward with and when to return. This was one of the best doctor appointments I've had in a long time. Best ENT visit for me, since last seeing his wife in 2013.

    5 out of 5 stars
    Reviewed on 2/2/2026

    Dr. Ishii is a wonderful doctor. He always has a plan for my issues.

    5 out of 5 stars
    Reviewed on 2/2/2026

    Knowledgeable, patient, showed empathy and concern

    5 out of 5 stars
    Reviewed on 2/2/2026

    Excellent

    5 out of 5 stars
    Reviewed on 2/2/2026

    Dr. Ishii is a phenomenal Physician and provides great care to me.

    5 out of 5 stars
    Reviewed on 2/2/2026

    Great provider.

    5 out of 5 stars
    Reviewed on 1/27/2026

    Dr Ishii is the best!

    5 out of 5 stars
    Reviewed on 1/5/2026

    The provider was very pleasant, efficient and listened to all my problems/

    5 out of 5 stars
    Reviewed on 12/23/2025

    He explained everything very carefully and when he scoped my nose he showed my spouse what was causing my sinus infection

    5 out of 5 stars
    Reviewed on 12/22/2025

    Dr. Ishii is the best. He always takes time to explain anything I don't fully understand and he listens and he cares. I'm very thankful he is my doctor.

    5 out of 5 stars
    Reviewed on 12/15/2025

    Superb care. The team was well coordinated, and Dr. Ishii demonstrated exceptional knowledge, care and expertise.

    5 out of 5 stars
    Reviewed on 12/15/2025

    I was very satisfied

    4 out of 5 stars
    Reviewed on 12/9/2025

    Dr Ishii was quick but fairly thorough

    5 out of 5 stars
    Reviewed on 12/9/2025

    Great doctor. Like his approach to helping me get better.

    5 out of 5 stars
    Reviewed on 12/1/2025

    The provider is excellent

    5 out of 5 stars
    Reviewed on 11/24/2025

    Dr Ishii is fantastic in every way.

    5 out of 5 stars
    Reviewed on 11/24/2025

    Extremely knowledgeable Provides superior care

    5 out of 5 stars
    Reviewed on 11/17/2025

    Dr ishii was one of the doctors that saved my life. I would get a tattoo of his name on my lower back if he asked me to.

    5 out of 5 stars
    Reviewed on 11/11/2025

    Concerned about my overall health. Easy to talk to. Amiable. Informative.

    5 out of 5 stars
    Reviewed on 10/28/2025

    I trust Dr Ishii with my life

    5 out of 5 stars
    Reviewed on 10/28/2025

    Dr. Ishii is wonderful!! It is so obvious in his interactions with his patients that he truly cares and strives to help them improve and have the best quality of life. He has had a significant impact on my life and supported my through a time when I was very discouraged about my own quality of life.

    5 out of 5 stars
    Reviewed on 10/28/2025

    I am privileged to be under his care. I am grateful for his care and surgical skill/expertise

    5 out of 5 stars
    Reviewed on 10/27/2025

    The best provider.I could ever have

    5 out of 5 stars
    Reviewed on 10/13/2025

    Dr. Ishii listened to all of my concerns without judgement.

    5 out of 5 stars
    Reviewed on 9/23/2025

    Dr. Ishii provided excellent care during my visit. He actively listened to my questions, updates and concerns and responded with thorough information and instructions going forward. I am scheduled for surgery on October 17th and feel confident that Dr. Ishii will provide excellent care for me and the surgery will be a success in every way.

    5 out of 5 stars
    Reviewed on 9/23/2025

    Dr. Ishii is very knowledgeable and compassionate. He is always encouraging and supportive.

    5 out of 5 stars
    Reviewed on 9/23/2025

    Most intelligent/thorough physician I've ever had. Proud and grateful to be his patient for more than 7 years now.

    5 out of 5 stars
    Reviewed on 9/23/2025

    Dr. Ishii is an outstanding physician. I'm very pleased with the exceptional level of care that he has consistently provided to me. I consider myself very fortunate to have Dr. Ishii as my ENT physician.

    5 out of 5 stars
    Reviewed on 9/22/2025

    Knowledgeable excellent care

    5 out of 5 stars
    Reviewed on 9/15/2025

    Dr Ishii is a fantastic doctor He is compassionate cares about his patients. I am blessed that he is my Doctor.

    3 out of 5 stars
    Reviewed on 8/25/2025

    He listened, answered my questions, explained things will, and ordered numerous tests to ensure we captured everything

    5 out of 5 stars
    Reviewed on 8/18/2025

    Dr Ishii is highly skilled, caring and listens.

    5 out of 5 stars
    Reviewed on 7/22/2025

    I feel lucky that I have him as my provider

    5 out of 5 stars
    Reviewed on 6/23/2025

    He was very clear in explaining his findings and possibilities. He listened to and answered all our questions

    5 out of 5 stars
    Reviewed on 6/16/2025

    Dr. Ishii is a great physician and good friend. I travel from South Carolina to see him.

    5 out of 5 stars
    Reviewed on 6/16/2025

    Awesome

    5 out of 5 stars
    Reviewed on 6/10/2025

    Dr. Ishii is the very best. His recommendations and treatment have forever changed my life for the better. Words can't express my sincere appreciation for his care.

    5 out of 5 stars
    Reviewed on 6/10/2025

    Very caring and always various alternatives for issue and hand and has my best interest at heart.

    5 out of 5 stars
    Reviewed on 6/10/2025

    Dr. Ishii is the absolute best. He is always updating me to new and better options for my hyper active chronic sinuses issues and he has managed my care wonderfully over the last 10 years.

    5 out of 5 stars
    Reviewed on 6/9/2025

    Professional

    5 out of 5 stars
    Reviewed on 6/5/2025

    Been seeing Dr. Ishii for a number of years, he is the best.

    5 out of 5 stars
    Reviewed on 5/12/2025

    Excellent doctor! Started as my second opinion and became My main ENT / surgeon.

    5 out of 5 stars
    Reviewed on 5/5/2025

    Knowledgeable about state-of-the-art in his field, yet conservative when appropriate. Efficient and incredibly competent.

    5 out of 5 stars
    Reviewed on 4/22/2025

    Dr. Ishii is always courteous, attentive and helpful. I have the utmost respect for him and appreciate all he has done for me.

    5 out of 5 stars
    Reviewed on 4/22/2025

    Excellent visit-good communicator-started on time- easy to schedule appt

    5 out of 5 stars
    Reviewed on 4/21/2025

    Good treatment plan.