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Dr. Mark Tieman, MD

Dr. Mark Tieman, MD

Internal Medicine*
35+ years of experience

Dr. Mark Tieman, MD is an internist in Commack, NY and has over 35 years of experience in the medical field. He graduated from Albert Einstein College of Medicine in 1986. He is affiliated with Mather Hospital. He is accepting new patients and telehealth appointments.

4.2 Star Rating
Based on 15 reviews 4.2 Star Rating (15 reviews)

Practice

356 Veterans Memorial Hwy Commack, NY 11725
Telehealth available

At a Glance

  • Area of Expertise
    Dr. Tieman specializes in the area of Internal Medicine. See board certifications
  • Explains Conditions Well
    Patients said this doctor explains conditions well. See reviews
  • Offers Telehealth
    This doctor offers telehealth appointments. Call the office to schedule an appointment.
  • Practices at Top Hospital
    America's 250 Best Hospitals Award™ See hospitals
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Dr. Tieman's Reviews

Likelihood to recommend Dr. Tieman

4.2
15 ratings, 3 with a written review
5 star
80%
80%
4 star
0%
0%
3 star
0%
0%
2 star
0%
0%
1 star
20%
20%

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Dr. Tieman has been my doctor for ten years he has always been spot on with diagnosing my ailments and spending the time necessary to explain and help me understand my problems. Recently I had a heart attack in Florida and had other health problems along with it. When I was well enough to come back to New York I went to see Dr. Tieman and brought with me pages of medical records from Florida . Dr Tieman took the time to review and explain and advise me on every detail. He was more then generous with his time and his ability to make me understand my health situation is best . Albert Ubert
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
Albert ubert in NY – Aug 08, 2019
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Dr. Tieman and his staff are wonderful. Great people, caring, and honestly the first doctor's office I don't mind going to!
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
Copiague – May 03, 2018
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Knowledgeable and very thorough. Takes time to listen and carefully assess symptoms. It's clear he takes a personal interest in his patient's well-being. Office staff are very pleasant.
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
3 others found this helpful
Helpful
MF in Brooklyn, NY – Aug 12, 2016
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Leave a review

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About Me

biography

Dr. Mark Tieman, MD is an internist in Commack, NY and has over 35 years of experience in the medical field. He graduated from Albert Einstein College of Medicine in 1986. He is affiliated with Mather Hospital. He is accepting new patients and telehealth appointments.
  • 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.

  • Morristown Memorial Hospital

    Residency Hospital, 1989
  • Albert Einstein College Of Medicine

    Medical School, 1986
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.

Locations

Practice

Mark Tieman MD356 Veterans Memorial Hwy Commack, NY 11725
1

Affiliated Hospitals

  • Mather Hospital

    75 N Country Rd
    Port Jefferson, NY 11777
    Recipient of 22
    hospital awards

    America's 250 Best Hospitals Award™ (2025, 2024, 2023)

    Top 5% in the nation for consistently delivering clinical quality

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

    Top 5% in the nation for consistently delivering clinical quality

    View all awards

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

    90%
    Patients said they were given information about recovering at home

    6% higher than the national average

    85%
    Patients said that nurses always listened to them and explained things well

    10% higher than the national average

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