Dr. Thomas Charles Nilsson

February 2, 1947October 24, 2020

It is with a heavy heart we share the passing of Dr. Thomas Charles Nilsson, MD (73). He is survived by his loving wife of forty-six years, Karin Nilsson, their children Christopher (Elizabeth Stahl) and Claire Nilsson, brother Erik Nilsson (Julie) and sister Carol Nilsson (Allen Minish). A native of Omaha, Nebraska, Thomas “Tom” is the son of the late Dr. Donald Nilsson, MD and Janet Nilsson. He attended Westside High School and the University of Nebraska–Lincoln where he was an active member of the Phi Gamma Delta fraternity, a bond he would later share with his son Christopher. He went on to receive his Doctor of Medicine at the University of Nebraska Medical Center where he also completed his residency in Internal Medicine, followed by a fellowship in Allergy and Clinical Immunology at National Jewish Health in Denver, Colorado. He returned to Nebraska in 1980 to work alongside his father and founder of Midwest Allergy and Asthma Clinic, P.C. This summer marked his 40th anniversary with the practice. When not working, Tom was an avid outdoor enthusiast. His love of Colorado and the mountains started as a young boy and continued through his final summer. Whether spending time at his beloved Windward House where the trails of Rocky Mountain National Park were like a map ingrained in his soul, to skiing with his kids from the day they could walk, he loved the peace, tranquility and endless adventures he found under Colorado’s clear, blue mountain skies. He also kept active running and biking, and most recently enjoyed a new home in Palm Beach Gardens with his wife Karin where they took advantage of everything the Florida sunshine provides. Most importantly, he had an insatiable curiosity about the world, one that he has passed down to his children. He could answer almost any question on Jeopardy or Trivial Pursuit, and his entire family marveled at his dedication to learning everything he could about the fabric of the world we live in. He read everything from Dickens, Tolstoy, and Dostoevsky to trashy spy novels, and loved every second of both ends of the literary spectrum.

Lastly, he was the most principled, pragmatic man any of us ever knew, always embracing science and reason above politics. We hope those who knew him and respected him will take this to heart in these trying times. Tom’s greatest loves were his wife, his children, his work and learning about the world he inhabited. An outstanding husband, father, brother, doctor and friend, he had a profound impact on the lives of so many people; his example will be felt for generations to come. On behalf of our entire family, we are so saddened by this loss, but if each person who reads this can take or learn from even a small portion of his life, the world will be a better place. In lieu of flowers, memorials may be sent to the Rocky Mountain National Park Conservancy, Nebraska Humane Society or the University of Nebraska Foundation to help establish a “White Coat Fund” in Tom’s name.


  • Rocky Mountain National Park Conservancy
  • Nebraska Humane Society
  • University of Nebraska Foundation to help establish a “White Coat Fund” in Tom’s name.


No public services are scheduled at this time. Receive a notification when services are updated.
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Dr. Thomas Charles Nilsson

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Suzette Dahl

November 10, 2020

I have been a pharmaceutical rep at Midwest Allergy and Asthma for 19 years.Dr. Nilsson has always challenged me on clinical information and talked about the patient. His demeanor for patient advocacy and how he felt about life always inspired me. I admired his love for nature and the outdoors and our discussions on the sandhills of Nebraska. I am grateful that I knew this great man and everything he brought to not only his patients, but to those around him, with his incredible positive energy and insight. I want his family to know I’m a better person for having known him and I will miss him.

Maureen Theobald

November 10, 2020

OH, how I loved this man. He was the only Dr. who finally listened to me, and took a detailed account of all I'd been through, So kind, so personable, so comforting with his sweet humor. He will definitely have a special place in heaven.

Much love to his family, Maureen Theobald

Marjorie Smith

November 10, 2020

I’m so sad of the news of Dr Nilsson. He’s the best doctor I have ever had. He would always listen to everything I had to say. Never ever did he rush through a visit. Had advice for any question I had for him. Always had a great smile for you. Always worked with you to help solve any health issues pending. Don’t know where I’ll ever find another Doctor like him. He’s definitely one of a kind. He will be forever missed.

Deb C

November 10, 2020

We are so saddened to hear of Dr. Nilsson’s passing. My daughter saw him since she was little and referred to him as “the grandpa doctor”. He was so sweet and gentle with her.
Sending prayers and hugs to your family.

Rachel Wise

November 9, 2020

To the family of Dr. Thomas Nilsson:
The loss of your husband, father and brother is also a loss to the many patients, like myself, who considered him a friend. Many of us enjoyed his sincerity and intelligence, and felt like we were having a visit with a friend, not a check up! We knew of his love for Colorado, the outdoors and his family. But, I think I could speak for most of his patients, he knew about out interests, profession and family. My prayers and heartfelt thoughts are with you all.

Denise Haas

November 6, 2020

I am so sad to hear of Dr. Nilsson's death. I have been a patient of his for over 40+ years. Once I was able to get my condition under control, I drove from Ks for my annual visit. After the initial exam, we would discuss what we had been doing, review the books we were reading and he also would draw a map to a restaurant he thought I would enjoy. I found so many wonderful places to eat using those line drawn maps.
He was a kind and gentle man and I will miss his smile and chuckle.
He was a sweetheart!

Sharon Loftis

November 5, 2020

I was deeply saddened to get the letter telling about the loss of Dr. Nilsson. He has been my pulmonologist for over 20 years and was the most excellent Dr. I have ever had. I will never forget his giving me his private cell number once when I was very sick with instructions to call it if my breathing worsened. That was amazing to me, and is just one of the reasons he was the very best Dr.
We shared a love of the mountains, and had great times discussing Colorado on any visit, as we climb 14ners and also love Rocky Mountain National Park. He would share his favorite hikes of the past summer, as would I. To say he will be greatly missed is a giant understatement. He was a Dr. whose wisdom and gentle reminders I would always trust and follow.
I send prayers of comfort to all his family and friends.

Valerie Niemeyer

November 5, 2020

We were so saddened to read the letter today about Dr. Nilsson's passing. My daughter, Alice, is 8 years old and had four appointments with Dr. Nilsson in the last two years, since developing some asthma troubles, which have been scary for her. His friendly, grandfatherly presence was a comfort and a delight to her, so much so that when I just shared the new with her of his passing, she burst into tears. Know that we experienced God's light in him, and give thanks for that, and that we are praying for the repose of his soul. May he rest in peace, and may the perpetual light shine upon him. Amen.

Mike Glaser

November 5, 2020

Just got the letter about Dr. Tom.
We shared the same type of mustache and age. We had talked about retirement and what we had planned to do.
So sorry for your loss.
Hugs and prayers,

Brooke S

November 5, 2020

A great doctor with a kindness and whit about him unmatched. He will be missed greatly by many.
My deep condolences for your loss.


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