What patients are saying
Overall rating
4.83
Average wait time
4.76
Bedside manner
4.84
“This is the only Dr. at Crystal run worth seeing. On time (huge issue with me ). very pleasant, listen and was very informative. I left most of my Crystal Run Drs. ”
George C.May 21, 2025
“Doctor Grundfast was amazing. He’s a great listener and clear communicator - his empathy really comes through. My only complaint has nothing to do with him; the office assistant in the front could today could use a few customer service trainings. ”
Initials hiddenSeptember 5, 2023
About Dr. Steven Grundfast
This provider only sees patients with in-network benefits or accepts self-pay. All other bookings are subject to cancellation.
Steven Grundfast is a dedicated and interested pulmonologist and critical care specialist serving the communities of Middletown and Newburgh in New York. Dr. Grundfast earned his Bachelor's degree from the State University of New York, Binghamton. He received his Doctor of Medicine from Drexel University, completed his internship in internal medicine at Crozer-Chester Medical Center, and his residency in internal medicine at Montefiore Medical Center.
Dr. Grundfast is a part of Crystal Run Healthcare. He is board certified in critical care medicine, pulmonary disease, and sleep medicine by the American Board of Internal Medicine.
During his consultations, Dr. Grundfast fully explains patients' conditions and helps them choose an appropriate treatment plan. Patients trust his expertise because he consistently provides high-quality care that leads to positive and lasting health outcomes.
Please only book a follow-up appointment if you are an existing patient. If you are a new patient booking a follow-up appointment, the appointment will be cancelled and rescheduled by the practice.
Is this doctor in your insurance network?
Enter your insurance carrier and plan
choose insurance
In-network insurances
99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
Cigna
Emblem Health
Medicare
UnitedHealthcare
Office location
Education and background
Practice names
Board certifications
- American Board of Internal Medicine
- Critical Care Medicine (Internal Medicine)
- Pulmonary Disease (Internal Medicine)
- Sleep Medicine (Internal Medicine)
Education and training
- Medical School - Drexel University, Doctor of Medicine
- Montefiore Medical Center, Residency in Internal Medicine
- Crozer-Chester Medical Center, Internship in Internal Medicine
- State University of New York, Binghamton (Bachelor’s)
Awards and publications
- Castle Connolly Top Doctor
Languages spoken
- English
Provider's gender
Male
NPI number
1710971049
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.83
Wait time
4.76
Bedside manner
4.84
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
88 reviews
Most relevant
I would definitely go back, doctor was very nice and straightforward. Spoke to me like a friend, not a patient.
June 14, 2021Anthony T.Verified patient
I thought he was excellent. He took the time to listen to my concerns and to answer any questions. He was great.
November 1, 2017Nicole T.Verified patient
Excellent bedside manner. No rush. Gave plenty of time during the visit. Very thorough. And really listens.
More than 1 year agoInitials hidden
Dr. Grundfast was professional and knowledgeable while at the same time being friendly and engaging.
January 16, 2020Heather W.Verified patient
I was very impressed with the Dr.s bedside manner and interest in my health. He was very informative.
February 3, 2018Sylvia M.Verified patient
Very professional and informative. Thorough exam and conversation with new patient. Pleased.
More than 1 year agoInitials hidden
Dr. Grundfast was extremely professional and helpful. He is one if my favorite doctors.
October 26, 2021Dorothy B.Verified patient
I’ve always liked Dr. Grundfast.
He’s easy to talk to. Very nice doctor.
March 4, 2024Bunny H.Verified patient
I love Dr. G! He is friendly, kind, direct, and knowledgeable. Highly recommend!
June 8, 2021Initials hiddenVideo visit
He's very professional and he has a great bedside manner.
February 23, 2017Initials hidden
The staff was excellent, everything was neat and clean.
January 12, 2021Joseph L.Verified patient
He is an amazing doctor. Very personable and caring.
February 9, 2018Nicole T.Verified patient
Doctor was concern about your health and well being.
September 27, 2018Harry L.Verified patient
This is the only Dr. at Crystal run worth seeing. On time (huge issue with me ). very pleasant, listen and was very informative. I left most of my Crystal Run Drs.
May 21, 2025George C.Verified patient
Doctor Grundfast was amazing. He’s a great listener and clear communicator - his empathy really comes through. My only complaint has nothing to do with him; the office assistant in the front could today could use a few customer service trainings.
September 5, 2023Initials hidden
He had a pleasant affect, good communicator and listener. Appeared clean, well put together and knowledgeable in his craft.
July 1, 2023Annette A.Verified patient
Doctor Grundfast was a breath of fresh air, and as an asthma patient, that's saying a lot. Wonderful bedside manner and was truly invested in creating a regimen to get me better. I'm glad I found a new pulmonologist.
June 8, 2023Jose P.Verified patient
Clear & concise explanation of take-home sleep study; very responsive when asked to urgently forward results to a surgeon outside the practice.
October 25, 2022Magaly C.Verified patient
Very good doctor.
November 3, 2020Diane M.Verified patient
Simply-excellent!
November 1, 2020Juan M.Verified patient
Great Doctor with even greater Personality
More than 1 year agoMutty S.Verified patient
I have been seeing Mr. Grundfast for about a decade. He was the Dr that could finally manage my asthma. I am a new person with his assistance. It is always a pleasure to see him every year. The office is doing a great job managing during the time of COVID. I felt safe & informed.
July 11, 2020Gwen L.Verified patient
He seemed extremely dismissive of my pain levels and history and prescribed me medicine my insurance doesn't cover after specifically ensuring me it would be covered. Followup appointment with him was literally 30 seconds long and I now need to find another doctor because my symptoms are back and worse
April 10, 2020Initials hidden
Very thorough. Very friendly and attentive.
January 15, 2020Dawn C.Verified patient
Positive experience
June 2, 2019Wayne K.Verified patient
It was a pleasant one. He’s a very caring Doctor. He takes the time to explain all your concerns. He very professional & knowledgeable. And always has a great welcoming smile. Edwin& Debra V. 4-3-2019
April 3, 2019Edwin V.Verified patient
Very through and attentive
September 5, 2018Bobbi S.Verified patient
Very personable and compassionate man.
May 16, 2018Mary B.Verified patient
He spent one minute with me and then sent the nurse in . Very poor manners. He never said goodbye. I thought he was coming back!
More than 1 year agoBeth G.Verified patient
Good, quick.
More than 1 year agoDJ
Short and to the point.
More than 1 year agoCL
As usual, excellent.
More than 1 year agoJS
Good as always.
More than 1 year agoBJ
Was good.
More than 1 year agoBI
The visit with Dr. Grundfast was excellent.
More than 1 year agoDD
Less than 1 year agoInitials hidden
Less than 1 year agoInitials hidden
March 4, 2025Yasmin D.Verified patient
February 14, 2025Michael L.Verified patient
More than 1 year agoInitials hidden
More than 1 year agoInitials hidden
November 5, 2024MARK C.Verified patient
September 13, 2024Susan S.Verified patient
More than 1 year agoInitials hidden
March 23, 2024Dana F.Verified patient
More than 1 year agoInitials hidden
August 30, 2023Anthony P.Verified patient
May 1, 2023Ryan W.Verified patient
More than 1 year agoInitials hidden
More than 1 year agoInitials hidden
Loading...
How soon can I make an appointment with Dr. Steven Grundfast?
Generally, Dr. Steven Grundfast has appointments available on Zocdoc within 1 week. You can see Dr. Grundfast's earliest availability on Zocdoc and make an appointment online.
Is Dr. Steven Grundfast accepting new patients?
Dr. Steven Grundfast generally accepts new patients on Zocdoc. You can see Dr. Grundfast's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. Steven Grundfast accept my insurance?
Choose your insurance plan to verify if Dr. Grundfast is in-network.
Can I make an appointment with Dr. Steven Grundfast online?
Yes, you can make an appointment online with Dr. Grundfast using Zocdoc. It’s simple, secure, and free.
What practice does Dr. Steven Grundfast work with?
Dr. Steven Grundfast works with Crystal Run Healthcare.
Where is Dr. Steven Grundfast's office located?
Dr. Steven Grundfast's office is located at 155 Crystal Run Rd, Middletown, NY 10941.
Which board certifications does Dr. Steven Grundfast have?
Dr. Steven Grundfast is certified by American Board of Internal Medicine, Critical Care Medicine (Internal Medicine), Pulmonary Disease (Internal Medicine), and Sleep Medicine (Internal Medicine).
What are common reasons for patients to see Dr. Steven Grundfast?
Dr. Steven Grundfast frequently sees patients for Asthma, Bronchitis, Obstructive Sleep Apnea (OSA), Pulmonology Consultation, and Sleep Problems. You can see other visit reasons for Dr. Steven Grundfast on their profile.
What languages does Dr. Steven Grundfast speak?
Dr. Steven Grundfast speaks English.
How do patients rate Dr. Steven Grundfast in reviews?
88 patients have reviewed Dr. Steven Grundfast. The overall rating for this doctor is 4.83/5. They have a 4.84/5 rating for bedside manner and a 4.76/5 rating for wait time. You can read individual reviews and ratings on their profile.