Chafen Watkins Hart, MD
Dr. Chafen Hart is a fellowship-trained pediatric sleep specialist who cares for children with sleep disorders.
Programs and Services
Specialties & Conditions
Research Areas
- Adolescent sleep
- Neurocognitive Divergence and Sleep Behaviors
Special Interests
Adolescent sleep medicine, sleep in neurodivergent populations, preventative pediatric care
Education
Education
- 2003 - 2007
- University of Texas Health Sciences Center , MD
- 1999 - 2003
- Harvard University , AB
Residency
- 2007 - 2010
- Tufts Medical Center, Pediatrics
Fellowship
- 2022 - 2023
- University of Colorado, Sleep Medicine
Board Certification
2010: Fellow, American Academy of pediatrics, board eligible: American Academy of Sleep Medicine
Academic Affiliations
Assistant Professor- clinical, University of Colorado
Ask a Question
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Contact Information
- Office: 877.225.5654
Locations
- Highlands Ranch
8671 S Quebec Street
Suite 120
Littleton, CO 80130 - National Jewish Health Main Campus
1400 Jackson Street
Denver, CO 80206
Patient Ratings
The Patient metric-rating score is an average of all responses to
care provider related questions on our independent metric-rating
system, the Press Ganey Patient Satisfaction Survey. This survey is
about the patient care experience and does not address crucial
characteristics like medical decision-making, prescribing the best
therapy, and patient outcomes.
Responses are measured on a scale of 1 to 5, with 5 being the best score. Learn more about our patient satisfaction survey.
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Patient Comments
Comments are collected in our Press Ganey Patient Satisfaction Surveys. Patients are de-identified to protect confidentiality and patient privacy. Learn more about our patient satisfaction survey.
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National Jewish Health Patient – December, 2025
Really liked Dr. Hart. She was so knowledgeable and informative about my complex sleep apnea issues.
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National Jewish Health Patient – December, 2025
Had an excellent experience with the doctor answering all questions and provided great information. Very professional and courteous in answering all questions. Highly recommend National Jewish.
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National Jewish Health Patient – December, 2025
I really like Dr. Hart. She talked to me with a very respectable tone and took my concerns to heart!!
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National Jewish Health Patient – November, 2025
Excellent provider
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National Jewish Health Patient – November, 2025
I am a retired physician so my questions were more of the technical kind and Dr. Hart was excellent at explanations and care plan for future.
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National Jewish Health Patient – November, 2025
After years of seeing Savannah, I was concerned about a new doctor but Chafen was really great.
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National Jewish Health Patient – November, 2025
No complaints. Dr Hart is thorough, thoughtful, respectful, and friendly.
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National Jewish Health Patient – October, 2025
Difficulty accessing my data from cpap, which is concerning. She experienced some difficulty focusing on the topic at hand.
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National Jewish Health Patient – October, 2025
Very kind doctor would like to see her again definitely
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National Jewish Health Patient – October, 2025
Amazing doctor, so pleasant, knowledgeable and concerned for my needs.
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National Jewish Health Patient – October, 2025
Dr. Hart is very personable and easy to talk to! Always has been great!
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National Jewish Health Patient – October, 2025
Dr thorough, analytical, took ample time in explanation
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National Jewish Health Patient – October, 2025
Dr. Hart was responsive, attentive, and engaged
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National Jewish Health Patient – October, 2025
Highly professional, knowledgeable and caring.
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National Jewish Health Patient – October, 2025
Dr. Hart is truly one of two doctors who Patients matter to them as doctors. Thank you Dr. Hart for caring about me as a person.
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National Jewish Health Patient – October, 2025
Dr Hart was wonderful ... Thank you!
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National Jewish Health Patient – October, 2025
Appreciated the fact that she is willing to do tele-med keeping us from driving unnecessarily to Denver from Pueblo.
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National Jewish Health Patient – October, 2025
I was treated very well, everyone did a great job.
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National Jewish Health Patient – August, 2025
Appointment went very well as this was my first time with this doctor.
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National Jewish Health Patient – August, 2025
My first time meeting with this doctor and I'm impressed. She was personable, listened we.ll and had great conversation about me and my condition. Highly recommend her!
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National Jewish Health Patient – August, 2025
Dr. Hart was very thorough and sensitive to my questions and concerns
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National Jewish Health Patient – August, 2025
I really like Dr. Hart
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National Jewish Health Patient – August, 2025
I was pleased and satisfied with the telehealth.
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National Jewish Health Patient – August, 2025
The doctor, as always, was wonderful
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National Jewish Health Patient – August, 2025
Dr. Hart was great to work with.
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National Jewish Health Patient – August, 2025
Dr Hart is an excellent, caring physician.
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National Jewish Health Patient – July, 2025
She was awesome and I will definitely be seeing her again!
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National Jewish Health Patient – July, 2025
Dr. Hart is excellent. Listened, cared, and provided good input.
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National Jewish Health Patient – July, 2025
Good experience.
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National Jewish Health Patient – July, 2025
Dr Hart made some recommendations and implemented them on my CPAP, I slept better last night.
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National Jewish Health Patient – July, 2025
Very good visit with new doctor. Discussed many aspects of my condition and many options for treatment. I have a good plan for future treatments.
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National Jewish Health Patient – July, 2025
Very happy with doctor
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National Jewish Health Patient – July, 2025
Excellent PA
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National Jewish Health Patient – July, 2025
I had an excellent experience and was well informed about disease process
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National Jewish Health Patient – June, 2025
Dr. Hart is excellent. I've been seeing various sleep specialists for over a decade and I connected with her more than anyone else. She was honest and realistic with me.
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National Jewish Health Patient – June, 2025
Dr. Hart was amazing and loved her info and demeanor
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National Jewish Health Patient – June, 2025
Care provider was new to me but was very acceptable.
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National Jewish Health Patient – June, 2025
Chafen Hart was very knowledgeable, collaborative, and very helpful.
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National Jewish Health Patient – June, 2025
This was the best experience ever
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National Jewish Health Patient – June, 2025
Great appointment with Dr Hart. Tx explained very well
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National Jewish Health Patient – May, 2025
She is marvelous! Just wanted more time
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National Jewish Health Patient – May, 2025
Great
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National Jewish Health Patient – May, 2025
The entire staff is awesome, we, my wife who is also a patient and I could not be happier, which is why we drive from Pueblo
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National Jewish Health Patient – May, 2025
I was really impressed by Dr Hart. I felt like she was really relatable, non judgmental, helpful , educational and inclusive of both my son and me in the next steps.
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National Jewish Health Patient – April, 2025
Dr. Hart partners with her patients, and she clearly cares. I also recommended her to my husband who will be seeing her soon.
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National Jewish Health Patient – April, 2025
She was fantastic from beginning to end.
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National Jewish Health Patient – April, 2025
Dr. Hart is a amazing: smart, compassionate, wanting to help.
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National Jewish Health Patient – April, 2025
I came to the visit pessimistic re: mountain sickness symptoms, long term. We had an in depth discussion of the whys of acute mountain sickness, pulmonary basics on what's happening and also how my sleep data analysis plays into things. The Dr indicated she would reach out to others to continue exploring my situation and best of all worked magic to get ma a bipap machine when I did not think there's anyway Medicare approves It. Wow. Maybe now I can stay in CO, really, thanks
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National Jewish Health Patient – April, 2025
Dr. Hart is a true professional, and I appreciate her thoughtful analysis of issues and approaches to resolutions. She is fantastic!
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National Jewish Health Patient – April, 2025
Dr. Hart realty listened to my concerns and I felt like she is really going to provide me with the product I really need to help me sleep. As fast as she possibly can.
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National Jewish Health Patient – April, 2025
Dr. Chafen is wonderful.
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National Jewish Health Patient – March, 2025
She is great & answered all of my questions & provided additional data/information. She was able to see & eval information about CPAP use and meaning. Very willing to discuss my thought & questions and suggested options to me! Is great clinician!
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National Jewish Health Patient – March, 2025
I don't feel my condition was fully understood. I left felling I couldn't elaborate on my condition without judgement.
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National Jewish Health Patient – March, 2025
I have never seen such kind providers. During our last visit I couldn't recommend any for her. The visit was holistic and mindful.
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National Jewish Health Patient – March, 2025
Dr Hart was totally engaged in the conversation about my issues and offered several possible solutions. She also gave a clear plan for finding solutions for me. Dr Hart is very easy to talk with.
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National Jewish Health Patient – March, 2025
This was my first visit with this doctor. My previous doctor at NJH transferred to another position at NJH. I really liked my previous doctor but I was impressed with my new doctor.
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National Jewish Health Patient – March, 2025
Dr. Hart is terrific!
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National Jewish Health Patient – March, 2025
Dr. Hart is an excellent physician. She turned my life around.
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National Jewish Health Patient – February, 2025
I'm thankful to be a patient of Dr. Hart!
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National Jewish Health Patient – February, 2025
Dr. Hart was excellent at all above, and she had a new (to me) and so-far extremely successful solution to a difficulty with which I have been coping for a very long time.
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National Jewish Health Patient – February, 2025
Dr. Hart is phenomenal
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National Jewish Health Patient – February, 2025
Good experience
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National Jewish Health Patient – January, 2025
Very few doctors are this good and clearly care
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National Jewish Health Patient – January, 2025
She was great and really put us all at ease. She has a very common sense approach and helped us understand the results of a previous sleep study (we gave her the results that we had just received).
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National Jewish Health Patient – January, 2025
Dr. Hart was fantastic.