background
background
Dr. Michael Karnasiewicz, MD

Dr. Michael Karnasiewicz, MD

Neurosurgery*
50+ years of experience

Dr. Michael Karnasiewicz, MD is a neurosurgeon in Waterbury, CT and has over 50 years of experience in the medical field. He graduated from Case Western Reserve University School of Medicine in 1973. He is affiliated with medical facilities such as New Milford Hospital and Waterbury Hospital. He is accepting new patients.

5 Star Rating
Based on 12 reviews 5 Star Rating (12 reviews)

Practice

500 Chase Pkwy Ste 2A Waterbury, CT 06708

Make an Appointment

Dr. Karnasiewicz is a Healthgrades Choice provider in Neurosurgery

The Healthgrades Choice designation helps you understand the most important factors to consider when choosing a healthcare professional. This designation is earned based on four set standards.
Read our methodology

  • Above average experience
  • Good hospital quality
  • Good patient ratings
  • No healthcare sanctions
  • Area of Expertise
    Dr. Karnasiewicz specializes in the area of Neurosurgery. See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. See reviews
  • Practices at Top Hospital
    America's 250 Best Hospitals Award™ See hospitals
  • Low Wait Times
    Patients are usually seen in 10 minutes or less.
ADVERTISEMENT
healthgrades-rx

Save money with free prescription discounts

Optum Perks and Healthgrades are subsidiaries of RVO Health.

Experience Check

Search for experience in a specific area

Insurance Check

Search for your insurance carrier and choose your plan type

Dr. Karnasiewicz's Reviews

Likelihood to recommend Dr. Karnasiewicz

5.0
12 ratings, 5 with a written review
5 star
100%
100%
4 star
0%
0%
3 star
0%
0%
2 star
0%
0%
1 star
0%
0%

Your trust is our top concern.

We strive to keep reviews honest, trustworthy, and fair.

Doctors can not pay for good reviews, nor can they pay to have negative reviews removed.

We monitor all reviews to ensure they comply with our guidelines and don’t include personal information, profanity, libel, defamation, harassment, obscenity or fraud.

Any reviews that are deemed fraudulent or violate our guidelines will be removed immediately.

All reviews are confirmed and audited before publication, and community members have the ability to flag inappropriate content for further review by our team.

I am so grateful to Dr. Karnasiewicz. I went to him because of a lower back problem. After he reviewed my MRI he discovered I had a very serious neck condition. He recommended surgery which I had and it has been very successful. I can't thank him enough.
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
Helpful
Michael Barile – Feb 17, 2020
×Post a ResponseAre you Dr. Karnasiewicz?
Dr. Karnasiewicz is an amazing neurosurgeon. He and his partner performed my revision neck fusion surgery in July 2019. These amazing surgeons gave me back the use of my arms and hands. The entire NOSS group, from the schedulers, nurses, PAs, and support staff are the gold standard for a specialty practice. I would recommend them to any person in need of exceptional neurosurgeons.
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
Helpful
Dec 02, 2019
×Post a ResponseAre you Dr. Karnasiewicz?
I had back surgery and have nothing but excellent things to say about Dr. Karnasiewicz. He was direct about all things that would be done and that was done and overall a real sweet man . I will recommend him to all my family and friends
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
Irene D in Waterbury, CT – Jun 23, 2017
×Post a ResponseAre you Dr. Karnasiewicz?
Dr. Karnasiewicz performed back surgery on me almost 4 years ago. He helped choose the right procedure and I couldn't be happier. He has great bedside manners and I would definitely recommend him .
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
John P in Milford, CT – Dec 14, 2016
×Post a ResponseAre you Dr. Karnasiewicz?
I was 15 years old with a very high risk sarcoma in my spine. Dr Karnasiewicz operated on me and played a big role in saving my life. I am here 30 years later. Very skilled and compassionate surgeon!
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
4 others found this helpful
Helpful
Diana Martin in West Palm Beach, FL – May 23, 2016
×Post a ResponseAre you Dr. Karnasiewicz?

Leave a review

How was your experience with Dr. Karnasiewicz?

About Me

biography

Dr. Michael Karnasiewicz, MD is a neurosurgeon in Waterbury, CT and has over 50 years of experience in the medical field. He graduated from Case Western Reserve University School of Medicine in 1973. He is affiliated with medical facilities such as New Milford Hospital and Waterbury Hospital. He is accepting new patients.
  • Neurosurgery

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

  • Yale University

    Fellowship Hospital, 1976
  • Yale-new Haven Medical Center

    Internship Hospital, 1974
  • Hartford Hospital

    Residency Hospital, 1974
  • Case Western Reserve University School Of Medicine

    Medical School, 1973
American Board of Medical Specialties®
American Board of Neurological Surgery®
Neurosurgery
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.
  • English

  • Arabic

Dr. Karnasiewicz is a Healthgrades Choice provider in Neurosurgery

    Read our methodology

    Online Care for Migraine (Sponsored)

    Locations

    Practice

    Office500 Chase Pkwy Ste 2A Waterbury, CT 06708
    1

    Affiliated Hospitals

    • New Milford Hospital

      21 Elm St
      New Milford, CT 06776
      Recipient of 14
      hospital awards

      America's 250 Best Hospitals Award™ (2025, 2024)

      Top 5% in the nation for consistently delivering clinical quality

      Patient Safety Excellence Award™ (2024)

      Top 5% in the nation for consistently delivering clinical quality

      View all awards
    • Saint Mary's Hospital

      56 Franklin St
      Waterbury, CT 06706

      How patients felt about the care they received at this hospital.

      88%
      Patients said they were given information about recovering at home

      4% higher than the national average

      75%
      Patients said that doctors always listened to them and explained things well

      1% lower than the national average

      View all patient feedback
    • Waterbury Hospital

      64 Robbins St
      Waterbury, CT 06708

      How patients felt about the care they received at this hospital.

      84%
      Patients said they were given information about recovering at home
      74%
      Patients said that doctors always listened to them and explained things well

      2% lower than the national average

      View all patient feedback
    Learn more about how Healthgrades measures Hospital Quality