What patients are saying
Overall rating
4.52
Average wait time
3.91
Bedside manner
4.64
“By the afternoon, I expect the wait time to be about an hour. Otherwise, I don't expect much of any physician, yet I haven't had with Dellosso the usual problems. Dellosso's medical practice is conventional and conservative, yet Dellosso remains respectful of unconventional principles and interventions that I've used elsewhere for my healthcare. When I have a reasonable request of Dellosso for my healthcare, Dellosso listens and responds.”
Kal A.March 18, 2026
“Incredibly friendly staff and doctor. Dr. Delosso was extremely knowledgeable and have a very calm and friendly demeanor. I didn't feel rushed and felt as if I had his complete attention.”
Initials hiddenJanuary 30, 2026
About Dr. John Dellosso
Dr. Dellosso practices Internal Medicine in the Chelsea section of New York City. He graduated as a Medical Doctor from New York University in 1991 and completed an Internal Medicine residency at Saint Vincent's Hospital in New York City in 1995. He was also elevated to Chief Medical Resident while there. He was promoted to Fellow of the American College of Physicians in 2004, given his expertise in medicine and teaching and received honors as a teacher by New York Medical College in 2005. Dr. Dellosso has been in practice for 25 years. He loves the practice of medicine and strives to be a partner in care with his patients.
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In-network insurances
99% of patients have successfully booked with these insurances
Aetna
BlueCross BlueShield
Cigna
Emblem Health
UnitedHealthcare
UnitedHealthcare Oxford
Areas of expertise
This doctor's experience enhances their expertise in similar cases. Below are the conditions or surgeries they treat most frequently.
Upper respiratory Infection (URI)
Lower back pain
Pain in joint
Chronic high blood pressure
High cholesterol
Underactive thyroid
Upper respiratory Infection (URI)
Lower back pain
Pain in joint
Chronic high blood pressure
Office location
Dr. John Dellosso, MD, FACP also offers online video visits for patients
Education and background
Practice names
Hospital affiliations
- NYU Langone Health
- Beth Israel Medical Center
Board certifications
- American Board of Internal Medicine
- Hospice and Palliative Care (American Board of Internal Medicine)
Education and training
- Medical School - New York University, Doctor of Medicine
- Saint Vincent Catholic Medical Center, Internship in Internal Medicine
- Saint Vincent Catholic Medical Center, Residency in Internal Medicine
Languages spoken
- English
Provider's gender
Male
NPI number
1942299920
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
4.52
Wait time
3.91
Bedside manner
4.64
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
1097 reviews
Most relevant
I am very pleaed with Zocdoc. the best customer service. I appreciate they keeping in touch with the reminders
January 13, 2026Gilberto O.Verified patient
Booked an appointment, wasted an hour and half and showed up to them saying that they didn’t confirm the appointment.
July 3, 2024Initials hidden
Very friendly and efficient staff. Dr. Dellosso was very kind and listened to all concerns. I would recommend this practice.
July 18, 2023Initials hidden
Doctor was wonderful - very kind and attentive to my health concerns. Highly recommend him.
April 8, 2025Initials hidden
He was very friendly/warm, straight forward, and responsive to my needs as a patient. Made me feel very comfortable quickly.
December 20, 2018Christopher W.Verified patient
I was referred to Dr Dellosso by a co-worker and I was very pleased. He was very nice and professional, I will be returning.
More than 1 year agoInitials hidden
Was seen 30 minutes late and office a bit hectic. Otherwise all good - Dr. Dellosso and staff were friendly and professional.
More than 1 year agoInitials hidden
Good and to the point. Quick diagnosis, easy appointment. Easy to get day of appointment, which is great when you feel bad.
July 20, 2013Initials hidden
Both doc and staff are upbeat and friendly. Being a GP is a very difficult job, but Dr D does it effortlessly. Recommended.
More than 1 year agoInitials hidden
Solid Doc. Professional, to the point, and able to refer me and get me an appointment with follow up doctor immediately.
December 23, 2013Gregory H.Verified patient
Dr Dellosso is patient and attentive. He listens, discusses and explains what's what. He also has a good sense of humor.
More than 1 year agoJames J.Verified patient
Seems like a great doctor and staff was super friendly. The wait was way too long to be seen, over an hour.
More than 1 year agoInitials hidden
Dr Dellosso is calm, competent and communicative. The office staff is cordial and the facility is spotless
September 28, 2023Lynn N.Verified patient
Simple check-in process. I was in and out within the hour. Great experience overall.
February 11, 2025Michael R.Verified patient
He was very kind, easy to talk to, and most of all competent excellent doctor. I already left great review on yelp.
October 29, 2013Soul Y.Verified patient
Dr Dellosso is professional and good humored PCP. The office feels slightly chaotic but the nurses are friendly.
May 12, 2021Initials hidden
Dr Dellosso was great- very personable and outgoing. I plan on seeing him going forward as my Primary Care Doctor
October 19, 2018Josh G.Verified patient
Staff is professional, kind and attentive. MD is low key and collaborative. I will be continuing on with him.
December 23, 2020Initials hidden
Dr. Dellosso is kind, calm and clear and also has a lovely sense of humor. His staff is also very nice.
March 14, 2023Initials hidden
Friendly staff!
Long wait.One hour exactly.
Really ugly office.
Doctor's bedside manner not great, just okay.
More than 1 year agoInitials hidden
I felt that this doctor was quite thorough as I went for a physical and my appointment was not rushed
April 17, 2023John L.Verified patient
I know the wait was long both times I have seen Dr. Dellosso, but his services once he sees you are impeccable
October 22, 2018Jacobo Y.Verified patient
Horrible, will never go back. Unprofessional, eating fried food at the front desk Just an overall dirty vibe
More than 1 year agoInitials hidden
Good guy. Understood me, clearly. I have confidence this will proceed to a good doctor-patient relationship.
June 11, 2020Christopher L.Verified patientVideo visit
dr dellosso was really helpful and answered all the questions i had. Very knowledgeable- will def come back!
More than 1 year agoInitials hidden
Is a great doctor. I wish he took my new health insurance. Great bedside manner. I'd trust him completely.
September 18, 2012Bonnie W.Verified patient
Efficient, great sense of humor, made me feel very comfortable. Nurse was great as well. Highly recommended
August 22, 2014Initials hidden
My appt got pushed 2x but I was still able to see the doctor during a window that was convenient for me.
January 19, 2021Nick P.Verified patientVideo visit
Nice, straightforward dude. Had an assistant with him, which he asked permission for, which I didn't mind.
February 4, 2015Ryan C.Verified patient
Dr. Dellosso was sensitive to my needs and was respectful in every way. I would recommend him to anyone!
August 5, 2015Justin M.Verified patient
staff was not good in billing my insurance. 6 phone calls later and my bill was still not submitted.
More than 1 year agoInitials hidden
Very helpful and made me feel comfortable discussing my initial problem..very kind and professional
More than 1 year agoCarol W.Verified patient
I've been to Dr. Dellosso for years and think he's a very knowledgeable, caring primary care doctor.
August 14, 2015Lauren H.Verified patient
Waited for two hours, and then was charged double because he saw a mosquito bite and "diagnosed it".
May 11, 2015Daniel L.Verified patient
Dr. Dellosso is great. He’s been my doctor for many years and is always empathetic and caring.
June 23, 2022Lourdes G.Verified patient
The office didn't knowI had an appointment when I booked and it as confirmed during an emergency.
April 18, 2021Josh B.Verified patientVideo visit
He didn’t didn’t ask much and said there was nothing wrong and entirely dismissed my symptoms.
More than 1 year agoInitials hidden
The staff was very nice and the doctor professional. I highly recommend on using the Doctor.
April 26, 2015Roger R.Verified patient
The interaction with the doctor was fine. However, the 1h+ wait clouded the entire experience.
More than 1 year agoDan R.Verified patient
Excellent. Completely professional and caring. Answered all my questions. Staff was excellent.
August 15, 2017Joshua Z.Verified patient
I liked him. He listened and took the time to hear and at least try to answer my concerns.
February 12, 2021Melissa B.Verified patient
Excellent doctor very understanding absolutely love him his bedside manner is outstanding
February 27, 2021Melissa B.Verified patient
Dr. Dellosso was very friendly and professional. I will be going back to him in the future!
More than 1 year agoAmanda O.Verified patient
Dr. Dellosso and his staff are good and patient listeners, thorough and kind. Consistently!
October 19, 2010JL
Easy visit...Dr. Dellosso made me feel comfortable and addressed my issues and questions.
April 11, 2017Initials hidden
They were closed on labor day, i paid $20 on uber to get there :/
September 2, 2024Keivan A.Verified patient
Dr. Dellosso was very professional and had a great bedside manner. I would see him again.
More than 1 year agoInitials hidden
The doctor is personable and helpful but the staff in reception is not at all welcoming.
February 7, 2012Initials hidden
The doc was great. The wait time was a bit excessive but I'm hoping that isn't the norm.
January 27, 2017Initials hidden
I had a very efficient and complete appointment — timely and professional
December 4, 2023Lynn N.Verified patient
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How soon can I make an appointment with Dr. John Dellosso?
Generally, Dr. John Dellosso has appointments available on Zocdoc within 1 week. You can see Dr. Dellosso's earliest availability on Zocdoc and make an appointment online.
Is Dr. John Dellosso accepting new patients?
Dr. John Dellosso generally accepts new patients on Zocdoc. You can see Dr. Dellosso's earliest availability on Zocdoc and schedule an appointment online.
Does Dr. John Dellosso accept my insurance?
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Can I make an appointment with Dr. John Dellosso online?
Yes, you can make an appointment online with Dr. Dellosso using Zocdoc. It’s simple, secure, and free.
Which hospital is Dr. John Dellosso affiliated with?
Dr. John Dellosso is affiliated with NYU Langone Health and Beth Israel Medical Center.
What practice does Dr. John Dellosso work with?
Dr. John Dellosso works with West Side Medical Group, PC.
Where is Dr. John Dellosso's office located?
Dr. John Dellosso has 2 office locations in New York, view full addresses on Dr. Dellosso's profile.
Which board certifications does Dr. John Dellosso have?
Dr. John Dellosso is certified by American Board of Internal Medicine and Hospice and Palliative Care (American Board of Internal Medicine).
What are common reasons for patients to see Dr. John Dellosso?
Dr. John Dellosso frequently sees patients for Allergy Consultation, Annual Physical, Chiropractic Consultation, Foot Consultation, and Illness. You can see other visit reasons for Dr. John Dellosso on their profile.
What languages does Dr. John Dellosso speak?
Dr. John Dellosso speaks English.
How do patients rate Dr. John Dellosso in reviews?
1097 patients have reviewed Dr. John Dellosso. The overall rating for this doctor is 4.52/5. They have a 4.64/5 rating for bedside manner and a 3.91/5 rating for wait time. You can read individual reviews and ratings on their profile.