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Hilarie Tomasiewicz, MD, PhD

Specialties

Neurosurgery

Education & Training

Doctor of Medicine

Hilarie Tomasiewicz, MD, PhD

Neurosurgeon with Wellstar since 2022.

Specialties

Neurosurgery

Education & Training

Doctor of Medicine

Neurosurgeon with Wellstar since 2022
  • Member of the Wellstar Medical Group A friendlie image of Hilarie Tom MD Hilarie Tomasiewicz, MD, PhD
  • Office Locations
  • Expertise
  • Patient Reviews
  • Publications & Articles

Office Locations


Expertise

About Hilarie Tomasiewicz, MD

Hilarie C. Tomasiewicz, MD, PhD, is a functional neurosurgeon who specializes in the surgical treatment of movement disorders, epilepsy and pain. She joined the Wellstar Neurosurgery Group in November 2022 after serving as an assistant professor of Neurosurgery, Neurology and Neuroscience at Mount Sinai Hospital in New York City.

Dr. Tomasiewicz obtained her bachelor’s degree in biology from the Massachusetts Institute of Technology (MIT) in Cambridge, MA. She received both her medical degree (MD) and her doctorate in neuroscience (PhD) from the Mount Sinai School of Medicine in New York, where she was elected to the Alpha Omega Alpha Medical Honor Society. Dr. Tomasiewicz completed her neurosurgical residency training at New York-Presbyterian Hospital/Weill Cornell Medical Center and Memorial Sloan Kettering Cancer Center Hospital in New York, NY. She then completed a fellowship in stereotactic and functional neurosurgery and surgical epilepsy at Emory University Hospital in Atlanta, GA.

Dr. Tomasiewicz has specific expertise in caring for patients with movement disorders, seizures and chronic pain.

Areas of Focus

Dr. Tomasiewicz is trained in stereotactic & functional neurosurgery and is an expert in the current techniques of functional neurosurgery such as deep brain stimulation (DBS), selective laser ablation for epilepsy, robotic-assisted stereotactic EEG as well as advanced procedures for chronic pain.

Conditions treated:
  • Dystonia
  • Epilepsy
  • Essential tremor
  • Normal pressure hydrocephalus (NPH)
  • Obsessive compulsive disorder (OCD)
  • Pain
    • Cancer/palliative
    • Chronic pain
    • Facial pain
    • Trigeminal neuralgia
  • Parkinson’s disease
  • Post-laminectomy syndrome
  • Seizures
  • Spasticity
  • Tourette’s Syndrome

Specialties

  • Neurosurgery

Education & Training

  • Icahn School of Medicine at Mount Sinai

Degree

  • Doctor of Medicine

Residency

  • New York-Presbyterian Hospital (Cornell Campus)

Fellowship

  • Emory University School of Medicine

Certifications

  • American Board of Neurological Surgery

Hospital Affiliations

  • Wellstar Kennestone Hospital

Languages spoken

  • English

Patient Reviews

Overall patient rating

5.0

Based on 30 patient ratings

Listened to me carefully
Shared the right amount of information
I'd recommend this provider to family and friends
Earned my trust
I'd recommend this practice to family and friends

All reviews have been submitted by patients after seeing the provider.For more information about the review system, check out this Learn more about our review system.

Patient Reviews

5

Our visit was with Dr. T, to discuss possible DBS. She made us feel very comfortable with the procedure. She took us through step by step, on what we should expect. She listened and answered all our questions. I would definitely recommend her to anyone.

September 13, 2026

5

Dr. T cares about me as a patient. She takes time to listen to my concerns. Her entire practice genuinely cares about my progress as a patient. I am really glad that I found the DBS program at WellStar.

August 9, 2026

5

Dr T and her staff always treat us with respect and professionalism

August 8, 2026

5

Dr. T is awesome! The best doctor you could have taken care of you. She's precise very transparent the best Doctor I've ever had. She's also meticulous and takes the time to explain the total procedure and what to expect. My health under her care has done a 360 turnaround. Thank you so much, ma'am for all you've done! Life is so much better.. {patient name removed}

June 28, 2026

5

Dr. T. is fantastic. She is very informative, professional and down to earth. Her nurse, Carrie, is also fantastic!

June 26, 2026

5

Everyone was very nice.

May 10, 2026

5

Dr T is always so positive and answers all questions/concerns with a professional and knowledgable answer. Thank you Dr. T Madonna

April 24, 2026

5

Dr T is the best doctor my daughter has ever seen. She had a very upbeat engaging manner. She listened intently to [patietnt name removed] and made her feel special. You are lucky to have Dr T on T Your staff.

January 19, 2026

5

Dr. Tomasiewicz is one of the best physicians I've ever had, including all to include my primary care or whatever. She's very comforting, she's very reassuring, and she's brilliant. Thank you.

November 26, 2025

5

Great interaction with everyone in the office.

October 26, 2025

5

Our visit was with Dr. T, to discuss possible DBS. She made us feel very comfortable with the procedure. She took us through step by step, on what we should expect. She listened and answered all our questions. I would definitely recommend her to anyone.

September 13, 2026

5

Dr. T cares about me as a patient. She takes time to listen to my concerns. Her entire practice genuinely cares about my progress as a patient. I am really glad that I found the DBS program at WellStar.

August 9, 2026

5

Dr T and her staff always treat us with respect and professionalism

August 8, 2026

5

Dr. T is awesome! The best doctor you could have taken care of you. She's precise very transparent the best Doctor I've ever had. She's also meticulous and takes the time to explain the total procedure and what to expect. My health under her care has done a 360 turnaround. Thank you so much, ma'am for all you've done! Life is so much better.. {patient name removed}

June 28, 2026

5

Dr. T. is fantastic. She is very informative, professional and down to earth. Her nurse, Carrie, is also fantastic!

June 26, 2026

5

Everyone was very nice.

May 10, 2026

5

Dr T is always so positive and answers all questions/concerns with a professional and knowledgable answer. Thank you Dr. T Madonna

April 24, 2026

5

Dr T is the best doctor my daughter has ever seen. She had a very upbeat engaging manner. She listened intently to [patietnt name removed] and made her feel special. You are lucky to have Dr T on T Your staff.

January 19, 2026

5

Dr. Tomasiewicz is one of the best physicians I've ever had, including all to include my primary care or whatever. She's very comforting, she's very reassuring, and she's brilliant. Thank you.

November 26, 2025

5

Great interaction with everyone in the office.

October 26, 2025

5

Our visit was with Dr. T, to discuss possible DBS. She made us feel very comfortable with the procedure. She took us through step by step, on what we should expect. She listened and answered all our questions. I would definitely recommend her to anyone.

September 13, 2026

5

Dr. T cares about me as a patient. She takes time to listen to my concerns. Her entire practice genuinely cares about my progress as a patient. I am really glad that I found the DBS program at WellStar.

August 9, 2026

5

Dr T and her staff always treat us with respect and professionalism

August 8, 2026

5

Dr. T is awesome! The best doctor you could have taken care of you. She's precise very transparent the best Doctor I've ever had. She's also meticulous and takes the time to explain the total procedure and what to expect. My health under her care has done a 360 turnaround. Thank you so much, ma'am for all you've done! Life is so much better.. {patient name removed}

June 28, 2026

5

Dr. T. is fantastic. She is very informative, professional and down to earth. Her nurse, Carrie, is also fantastic!

June 26, 2026

5

Everyone was very nice.

May 10, 2026

5

Dr T is always so positive and answers all questions/concerns with a professional and knowledgable answer. Thank you Dr. T Madonna

April 24, 2026

5

Dr T is the best doctor my daughter has ever seen. She had a very upbeat engaging manner. She listened intently to [patietnt name removed] and made her feel special. You are lucky to have Dr T on T Your staff.

January 19, 2026

5

Dr. Tomasiewicz is one of the best physicians I've ever had, including all to include my primary care or whatever. She's very comforting, she's very reassuring, and she's brilliant. Thank you.

November 26, 2025

5

Great interaction with everyone in the office.

October 26, 2025

5

Our visit was with Dr. T, to discuss possible DBS. She made us feel very comfortable with the procedure. She took us through step by step, on what we should expect. She listened and answered all our questions. I would definitely recommend her to anyone.

September 13, 2026

5

Dr. T cares about me as a patient. She takes time to listen to my concerns. Her entire practice genuinely cares about my progress as a patient. I am really glad that I found the DBS program at WellStar.

August 9, 2026

5

Dr T and her staff always treat us with respect and professionalism

August 8, 2026

5

Dr. T is awesome! The best doctor you could have taken care of you. She's precise very transparent the best Doctor I've ever had. She's also meticulous and takes the time to explain the total procedure and what to expect. My health under her care has done a 360 turnaround. Thank you so much, ma'am for all you've done! Life is so much better.. {patient name removed}

June 28, 2026

5

Dr. T. is fantastic. She is very informative, professional and down to earth. Her nurse, Carrie, is also fantastic!

June 26, 2026

5

Everyone was very nice.

May 10, 2026

5

Dr T is always so positive and answers all questions/concerns with a professional and knowledgable answer. Thank you Dr. T Madonna

April 24, 2026

5

Dr T is the best doctor my daughter has ever seen. She had a very upbeat engaging manner. She listened intently to [patietnt name removed] and made her feel special. You are lucky to have Dr T on T Your staff.

January 19, 2026

5

Dr. Tomasiewicz is one of the best physicians I've ever had, including all to include my primary care or whatever. She's very comforting, she's very reassuring, and she's brilliant. Thank you.

November 26, 2025

5

Great interaction with everyone in the office.

October 26, 2025

5

Great interaction with everyone in the office.

October 26, 2025

5

Dr. Tomasiewicz is one of the best physicians I've ever had, including all to include my primary care or whatever. She's very comforting, she's very reassuring, and she's brilliant. Thank you.

November 26, 2025

5

Dr T is the best doctor my daughter has ever seen. She had a very upbeat engaging manner. She listened intently to [patietnt name removed] and made her feel special. You are lucky to have Dr T on T Your staff.

January 19, 2026

5

Dr T is always so positive and answers all questions/concerns with a professional and knowledgable answer. Thank you Dr. T Madonna

April 24, 2026

5

Everyone was very nice.

May 10, 2026

5

Dr. T. is fantastic. She is very informative, professional and down to earth. Her nurse, Carrie, is also fantastic!

June 26, 2026

5

Dr. T is awesome! The best doctor you could have taken care of you. She's precise very transparent the best Doctor I've ever had. She's also meticulous and takes the time to explain the total procedure and what to expect. My health under her care has done a 360 turnaround. Thank you so much, ma'am for all you've done! Life is so much better.. {patient name removed}

June 28, 2026

5

Dr T and her staff always treat us with respect and professionalism

August 8, 2026

5

Dr. T cares about me as a patient. She takes time to listen to my concerns. Her entire practice genuinely cares about my progress as a patient. I am really glad that I found the DBS program at WellStar.

August 9, 2026

5

Our visit was with Dr. T, to discuss possible DBS. She made us feel very comfortable with the procedure. She took us through step by step, on what we should expect. She listened and answered all our questions. I would definitely recommend her to anyone.

September 13, 2026

Publications and Articles

John Elliot smiles after getting control of Parkinson’s symptoms with the Wellstar Parkinson’s and Tremors Program and a procedure called deep brain stimulation (DBS).

JohnElliottCare

John Elliott was a builder who enjoyed meeting with clients and planning their future homes. But the effects of Parkinson’s disease made it hard for him to meet with clients and live his life. Then he found a new sense of hope thanks to the Wellstar Parkinson’s and Tremors Program and a procedure called deep brain stimulation (DBS). His experience is a powerful testament to the value of comprehensive care and how his neurologists, functional neurosurgeon and nurse navigator helped him rebuild his life. 

Symptoms that were hard to shake

 

John has been building custom homes in Marietta for 45 years—a career defined by personal relationships with his clients. He loves spending time with his family, hunting, fishing and bushhogging the multi-generational family farm.

But in 2015, John’s hands began to shake. A former client and friend who was a retired neurologist recommended he see Dr. Thomas Holmes, a Wellstar neurologist. 

A DaTscan, a type of nuclear imaging test that takes images of the brain, helped Dr. Holmes see a loss in John’s dopamine-producing neurons, which indicates Parkinson’s disease. The progressive neurological disorder affects a person’s motor functions and movements. 

At first, medication helped. But years after his diagnosis, John’s medications were barely effective.

“A big part of custom home building is your interaction with your client,” John said. “Meeting with the customer became somewhat of a problem.”

His tremors and involuntary mouth movements left him feeling embarrassed.

“I kind of went into a shell and didn't want to see people because they would make comments, particularly about the mouth movement,” he said. “You want to hide.”

Continue reading this article
Hilarie Tomasiewicz, MD, PhD
Neurosurgeon with Wellstar since 2022
Rating
5.0
Specialties
Neurosurgery
Education
Doctor of Medicine
Medical School
Icahn School of Medicine at Mount Sinai
Residency
New York-Presbyterian Hospital (Cornell Campus)
Fellowship
Emory University School of Medicine
Certifications
American Board of Neurological Surgery
Spoken Languages
English
Hospital Affiliations
Wellstar Kennestone Hospital
Office Locations
www.wellstar.org/physicians/hilarie-tomasiewicz-md-phd

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In the Community Health Highlights Events & Classes
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Give
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About Wellstar Diversity Equity Inclusion & Belonging Leadership Wellstar Board of Trustees Healthcare Innovation Safety First Commitment Wellstar Research Institute Latest News

CAREERS & EDUCATION

Careers at Wellstar Graduate Medical Education Pharmacy Residency

PATIENT RESOURCES

Pay Your Bill Accepted Insurance

HELP

Contact Us Hospital Transparency Information Price Transparency Policy and Privacy Information

MEDIA

Media Room

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