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Dr. Hayward Zwerling, MD

Dr. Hayward Zwerling, MD

Endocrinology, Diabetes & Metabolism*
40+ years of experience

Dr. Hayward Zwerling, MD is a diabetes & metabolism endocrinologist in North Chelmsford, MA and has over 40 years of experience in the medical field. Dr. Zwerling has extensive experience in Osteoporosis & Screening and Thyroid Disorders. He graduated from State University of New York Upstate Medical University Norton College of Medicine in 1984. He is affiliated with Lowell General Hospital. He is accepting new patients.

3.2 Star Rating
Based on 15 reviews 3.2 Star Rating (15 reviews)

Practice

20 Research Pl Ste 300 North Chelmsford, MA 01863

Make an Appointment

(978) 459-0018

At a Glance

  • Areas of Expertise
    Dr. Zwerling specializes in the areas of Diabetes, Metabolism & Endocrinology & Internal Medicine. • See board certifications
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Dr. Zwerling's Reviews

Likelihood to recommend Dr. Zwerling

3.2
15 ratings, 8 with a written review
5 star
47%
47%
4 star
7%
7%
3 star
0%
0%
2 star
13%
13%
1 star
33%
33%

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Excellent doctor
Excellent doctor who spends time with me and explains everything. Also very responsive to let me know the results of any tests. I feel very comfortable being under his care.
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
Oct 05, 2022
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Unprepared, impatient, and confrontational
My long-time provider left the practice and I was assigned to Dr. Zwerling. He was late for the appointment. He did not have my medical records. He performed no examination. He asked me about four or five questions and didn't allow me to finish answering most of them. He made assumptions about my previous care and about me. If his goal was to drive me away, it worked.
What went well
  • Staff friendliness
What could be improved
  • Didn't listen or answer questions
  • Appointment was rushed
  • Didn't trust the provider's decisions
  • Long wait times
Helpful
Sep 29, 2022
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Very rude
He is very rude doctor who barely spent 20 minutes for first appointments and no real explanation for issue. He seems very insulting when we ask few questions and I wouldn’t recommend him for anyone. Please avoid this doctor at any cost since he is not only rude but he is arrogant, insulting and can not give any good answer for issue you have it. Not worth the time and money!
What went well
No results
What could be improved
  • Office environment
  • Didn't listen or answer questions
  • Didn't explain conditions well
  • Appointment was rushed
  • Didn't trust the provider's decisions
1 other person found this helpful
Helpful
JS – Sep 14, 2022
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Always prompt, Staff is great, Dr Zwerling is is in every way Professional kind , curious, and knowledgeable, considerate, attentive to my needs. and has taught me how to keep My numbers down. I am very satisfied. Thank You!!
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
Helpful
Aline Santos – Nov 19, 2020
Thank you for taking the time to leave a review!... Read More
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I had several appointments over several years with Dr. Zwerling. Every appointment ended up with me crying in my car. I finally had enough and I changed practices after my last visit and my new Endocrinologist looked beyond the numbers from the test that monitored my issue and at my quality of life. Within 3 months of seeing my new Endocrinologist I had surgery, had the affected parathyroid gland removed and am feeling great and back to my old self.
What went well
No results
What could be improved
  • Office environment
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Staff wasn't friendly
  • Didn't trust the provider's decisions
3 others found this helpful
Helpful
Nov 15, 2020
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In addition to being a phenomenal doc he supports communication on phone and in very general e mail communication. Office is super— Diane receptionist and Lauren wonderful nurse.
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
Helpful
May 06, 2020
Thank you for the kind review! We will be sure to... Read More
×Post a ResponseAre you Dr. Zwerling?
First 3 minutes he calls me “stupid” for not finishing college because I didn’t know what I wanted to do. Long enough that I had to step out of my comfort zone& remind him that,that was not what I was there for. Gave me papers to educate me on safe sex and talked about my thyroid problem(which he said was not a real problem)for maybe 3 minutes.Told me I’d be fat my entire life and that my thyroid meds had nothing to do with why I stopped gaining wait for no reason when working out 5 days a week
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
  • Long wait times
2 others found this helpful
Helpful
Stephanie in MA – Nov 09, 2018
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The office chaotic. On several occasions I have had a scheduled appointment excepting that the medication the doctor prescribed would be delivered to his office. The pharmacy cannot get the office to return phone calls. I have had to reschedule appointments since office is unprepared. Dr says on his voicemail that he is short staffed. Simple answer hire more people.
What went well
No results
What could be improved
  • Office environment
  • Difficult to schedule appointment
  • Didn't listen or answer questions
  • Didn't trust the provider's decisions
6 others found this helpful
Helpful
May 16, 2018
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Know Before You Go

About Me

biography

Dr. Hayward Zwerling, MD is a diabetes & metabolism endocrinologist in North Chelmsford, MA and has over 40 years of experience in the medical field. Dr. Zwerling has extensive experience in Osteoporosis & Screening and Thyroid Disorders. He graduated...read more

  • Endocrinology, Diabetes & Metabolism

  • 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.

  • Vanderbilt University

    Internship Hospital

  • Cornell University

    Undergraduate School

  • Massachusetts General Hospital

    Fellowship Hospital, 1989

  • Vanderbilt University Hospital

    Residency Hospital, 1987

  • State University Of New York Upstate Medical University Norton College Of Medicine

    Medical School, 1984
American Board of Medical Specialties®
American Board of Internal Medicine®
- 
Diabetes, Metabolism & Endocrinology
- 
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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Focus on Graves' Disease

Locations

Practice

Office20 Research Pl Ste 300 North Chelmsford, MA 01863
1

Practice

Circle Health Urgent Care LLC9 Loon Hill Rd Dracut, MA 01826
2

Affiliated Hospitals

  • Lowell General Hospital

    295 Varnum Ave
    Lowell, MA 01854
    Recipient of 2
    hospital awards

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

    86%
    Patients said they were given information about recovering at home

    2% higher than the national average

    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