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Dr. Karen Leiser, MD

Dr. Karen Leiser, MD

Internal Medicine*
20+ years of experience

Dr. Karen Leiser, MD is an internist in Harrison, NY and has over 20 years of experience in the medical field. She graduated from Albert Einstein College of Medicine in 2002. She is affiliated with White Plains Hospital. She is not accepting new patients.

3.7 Star Rating
Based on 32 reviews 3.7 Star Rating (32 reviews)

Scarsdale Medical Group

600 Mamaroneck Ave Ste 200 Harrison, NY 10528
(914) 723-8100

At a Glance

  • Area of Expertise
    Dr. Leiser specializes in the area of Internal Medicine. • See board certifications
  • Easy Scheduling
    Patients said scheduling was easy. • See reviews
  • Practices at Top Hospital
    Patient Safety Excellence Award™ • See hospitals
  • Hospital Satisfaction
    Patients said they were highly satisfied at this doctor's hospital. • See hospitals
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Dr. Leiser's Reviews

Likelihood to recommend Dr. Leiser

3.7
32 ratings, 23 with a written review
5 star
63%
63%
4 star
3%
3%
3 star
0%
0%
2 star
6%
6%
1 star
28%
28%

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Dr Leiser is intelligent, caring, kind and thorough. She's an excellent physician.
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Feb 19, 2025
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It was a pleasure meeting with Dr. Leiser
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Feb 02, 2025
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I had a lot of questions and concerns during this visit. Dr. Leiser helped me plan to address them.
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Jan 20, 2025
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Excellent!
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Nov 13, 2024
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Dr. Leiser is wonderful! She is thorough and caring.
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Nov 03, 2024
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Came to Dr Leiser because my family currently uses her as their physician.
What went well
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Aug 22, 2024
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She is very thorough
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
Aug 07, 2024
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Excellent service
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
May 29, 2024
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Professional. Excellent.
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
May 29, 2024
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Dr Leiser and her assistant were terrific
What went well
  • Appointment scheduling
  • Listened & answered questions
  • Explained conditions well
What could be improved
No results
Helpful
May 23, 2024
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Dr. Leiser is the best!
I have been with Dr. Leiser for years. I really consider that she saved my life. I had a little glitch on my EKG and she was persistent with me to make an appointment with the cardiologist Dr. Roger Capucci. It took three different tests, nuclear stress, test, fine, sonogram, perfect. However, the third test CT scan revealed that I had severe coronary artery disease. Thank you, Dr. Leiser. She really cares! She is a thorough and wonderful doctor. I recommend her to everyone.
What went well
  • I felt respected
  • 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
1 other person found this helpful
Helpful
Dr. Karen Leiser – Aug 04, 2023
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I was very disappointed with my most recent visit with Dr. Leiser. She had a horrible bed side manner, very unfriendly and unwilling to discuss any concerns I had. It was obvious her personal opinion was expressed and nothing was backed up by any medical information or discussion. Would not recommend her and will no longer be using her as my internist moving forward.
What went well
No results
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
2 others found this helpful
Helpful
Aug 02, 2021
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I had high hopes for Dr. Leiser after my PCP at Scarsdale Med left for another group. She is extremely unhelpful, tells you conflicting information from what the front desk/staff tells you, unfriendly and seems like she could care less about your well being. The front desk/office at SMG is a mess enough, the doctors are what make people stick with the group. Dr. Leiser is so discourteous and unaccommodating it makes you feel otherwise.
What went well
No results
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Staff wasn't friendly
  • Appointment was rushed
9 others found this helpful
Helpful
Apr 21, 2020
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Dr. Leiser is a wonderful doctor and diagnostician. She quickly determined the cause of my stomach pain and then spent time arguing with my insurance company about why they should authorize the test she felt was necessary. Fortunately, they approved it and Dr. Leiser was proven correct. She put me at easy and took the time to follow up with me. I am so glad I found Dr. Leiser!
What went well
No results
What could be improved
No results
4 others found this helpful
Helpful
Apr 08, 2019
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Excellent and thorough.
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
Jan 26, 2019
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I have been looking for a female doctor for sometime and today I finally found one. She was professional, very thorough and never made me feel rushed. She took the time to look back through all my old medical records and scheduled tests to follow- up and address issues that I should not ignore.
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
Linda in Armonk, NY – Aug 11, 2018
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Absolutely zero follow up. Also not at all warm or helpful. Asked her office to fax records for an important upcoming surgery and it has taken them over 3 weeks and has still not been done. Looks like I will need to go there in person and physically make them fax the records. Looking for a new doctor.
What went well
  • Office environment
  • Wait times
What could be improved
  • 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
5 others found this helpful
Helpful
Kate in NY – Jul 13, 2018
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Unfriendly, judgmental, no follow-up for a significant issue. I gave her a second chance a year after my annual exam. Nothing changed. Looking for a new doctor.
What went well
  • Office environment
  • Appointment scheduling
  • Staff friendliness
  • Wait times
What could be improved
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
4 others found this helpful
Helpful
Sara in Scarsdale – Mar 28, 2018
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Dr Lesire is very cold and unfriendly. Super judge mental, and therefore will not be returning. Highly not recommended as a primary physician.
What went well
  • Office environment
What could be improved
  • 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
  • Long wait times
2 others found this helpful
Helpful
Jessica in White plains, ny – Feb 07, 2018
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In the short time I have been a patient I am so happy with my care, she is helping my figure out what might be wrong with me. She is caring and concerned, she responds to questions in a very timely manner. I am very happy I choose her to be my primary care doctor.
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
Ellen Bair in Eastchester, NY – Dec 14, 2017
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Know Before You Go

About Me

care philosophy

Karen J Leiser, MD received her undergraduate degree from Duke University. She went on to medical school at the Albert Einstein College of Medicine where she was elected to Alpha Omega Alpha honor society. She completed her internship and residency...read more

biography

Karen J. Leiser, MD received her undergraduate degree from Duke University. She went on to medical school at the Albert Einstein College of Medicine where she was elected to Alpha Omega Alpha honor society. She completed her internship and residency...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

    Medical School, 2002
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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Locations

Scarsdale Medical Group

Scarsdale Medical Group600 Mamaroneck Ave Ste 200 Harrison, NY 10528
1

Affiliated Hospitals

  • White Plains Hospital

    41 E Post Rd
    White Plains, NY 10601
    Recipient of 8
    hospital awards

    Patient Safety Excellence Award™ (2025, 2024)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    Outstanding Patient Experience Award™ (2024, 2023, 2022)

    Top in the nation for providing excellence in patient safety by preventing infections, medical errors, and other preventable complications

    View all awards

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

    85%
    Patients said they were given information about recovering at home

    1% higher than the national average

    81%
    Patients said that nurses always listened to them and explained things well

    6% higher than the national average

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