John P. O'connor, MD | Calverton, NY | Internist

.about .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. John O'Connor has practiced internal medicine for 30 years and is affiliated with Peconic Bay Medical Center. He sees patients for abrasions, bacterial conjunctivitis, and diabetes mellitus.

Dr. O'Connor earned his medical degree from Ross University School of Medicine and completed his residency at Saint Agnes Healthcare. He practices in Calverton, New York. Patients on Vitals rate Dr. O'Connor 4.51 out of 5.

Overview based on verified provider data

accepting new patients
4.5

39 Ratings
30 years of experience
30 insurance plans accepted
speaks English
Saint Agnes Healthcare
13 written reviews
1 specialty
7 areas of expertise
1 hospital affiliation
1 office location
Male

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me

Based on patient feedback. Read the reviews

John Peter O'connor's Ratings and Reviews

4.5

39 Ratings with 13 written Reviews

Average Wait Time 13 Minutes

How was your appointment with
John O'connor?

Patients’ Perspective

Gave an accurate diagnosis: (20) Did WellNeeds Improvement (0)
Had a good bedside manner: (19) Did WellNeeds Improvement (0)
Spent time with me: (20) Did WellNeeds Improvement (0)
Provided follow-up after the visit: (18) Did WellNeeds Improvement (0)
Flexible scheduling: (18) Did WellNeeds Improvement (0)
Saw me in a timely manner: No Ratings
Staff was courteous: No Ratings

39 ratings & reviews

Sort:

Showing 1 to 10 of 13 reviews

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

KNOWN DR. O'CONNOR OVER 20 YEARS AND HE STILL IN 2023 SPENDS AS MUCH TIME TO CLEAR - UP ANY QUESTIONS. IN MY 83 YEARS SEEING DR.'S HIS DIAGNOSIS SKILLS ARE MUCH BETTER THAN MOST. RECOMMEND HIM HIGHLY AND GLAD HE IS ALWAYS THERE FOR ME.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit

Needs Improvement

September 16th, 2023

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Love, love Dr. O’Connor he always get to the bottom of what is bothering you. He is an excellent diagnostician. He has been the best doctor for my husband and me. Many stories where he has picked up on serious health issues and solved them.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

October 24th, 2019

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Nick and I love the time Dr OConner spends with us. He answers and discusses all our issues. He also shares his knowledge on health issues.

October 22nd, 2019

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

I have been going to Dr. O'Connor for many years. He spends a lot of time with his patients when you have an appointment. He explains everything in detail so it is understandable. He is extremely knowledgeable and is not afraid to advise you as to what all of your options are.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

September 14th, 2018

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

The best!

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

September 4th, 2018

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Very professional. Up to date on the newest treatments, medications, etc. I would recommend him to everyone. Excellent staff.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Flexible scheduling

Needs Improvement

August 4th, 2015

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Outstanding

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

February 8th, 2015

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Always listens to my questions/concerns. First Dr. Who was able to help me get my blood pressure Under control. I have complete confidence in him and his staff. A+ experience for last 15 years.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

January 20th, 2015

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Calling Dr. O'Connor during weekend hours with an acute issue was problematic. He acted annoyed that he was paged. I have been a patient for many years and until recently never needed to contact him during off hours, until recently. He acted like I was bothering him . I work in the health care field- I know how busy Doctors are but the treatment I got was unacceptable..I'm so disappointed because I really liked Dr. O'Connor and thought he would be there for me.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

January 1st, 2012

.rating-and-reviews .noScriptHide .nojs-show,.truncated [data-rem],blockquote .truncated-text{ display: initial !important}.no-js-hide,.ellipsis { display: none; }.truncated:after {content: '' !important}

Dr. O'Connor always listens to my laundry list of complaints and addresses all of them during a visit.

Did Well

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me
Provided follow-up after the visit
Flexible scheduling

Needs Improvement

June 26th, 2011

John Peter O'connor

4480 Middle Country RoadCalverton, NY 11933

Tel: (631) 208-2919

Mon9:00 am - 5:00 pm

Tue9:00 am - 5:00 pm

WedClosed

Thu9:00 am - 5:00 pm

Fri9:00 am - 5:00 pm

SatClosed

SunClosed


John Peter O'connor, MD	Dr. Adewumi Bakare DMSc, PA-C	Dr. Mukund Madhaw Das, MD	Dr. Amr Ali Shady, MD
Internal Medicine	Internal Medicine	Internal Medicine	Internal Medicine
Accepts New Patients	Accepts New Patients	Accepts New Patients	Accepts New Patients
4.5 (39 Ratings)	0 (0 Ratings)	0 (0 Ratings)	4.1 (12 Ratings)
30 Years of Experience		10 Years of Experience	40 Years of Experience
No Virtual Visit Option	Virtual Visit Available	Virtual Visit Available	Virtual Visit Available
Speaks English	Speaks English, Spanish, Yoruba, French, Russian, Arabic, Chinese, Chinese (Mandarin)	Speaks English, Hindi, Urdu	Speaks English, Arabic
Calverton , NY	Mesquite , TX	Bergenfield , NJ	East Syracuse , NY
Med School: Ross Univ	Med School: University of Lynchburg - DMSc	Med School: St Georges University School Of Medicine	Med School: University Of Cairo Faculty Of Medicine
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

1199SEIU
AARP
AARP - PPO
Aetna
Aetna - Medicare
AgeWell New York
Anthem Blue Cross
Blue Cross Blue Shield
Blue Cross Blue Shield - PPO
Blue Cross Blue Shield of South Carolina
CareSource
Cigna
EmblemHealth
Empire Blue Cross Blue Shield
Fidelis Care (NY)
Humana
MagnaCare
Medica
Medicaid - Medicaid
Medicaid - Medicaid (Managed)
Medicare
Medicare - Medicaid
Medicare - Medicare
Nippon Life Benefits
STLDentalPlan| LLC
UnitedHealthcare
UnitedHealthcare - HMO
UnitedHealthcare Oxford
UnitedHealthcare Oxford - HMO
Wellcare

Internal Medicine

Check-up
Heartburn
Immunization
Physical
Vaccination
Weight Loss
Weight Loss (non-surgical)

John Peter O'connor holds an active medical license in the state of New York.

Medical License

Medical Doctor with an active medical license in the state of New York that expires in 2027.

Education & Training

Residency

Completed their residency at Saint Agnes Healthcare.

Medical School

Graduated from Ross Univ and Ross University School Of Medicine in 1996.

NPI Number

John Peter O'connor's NPI number is 1811917578.

Walter Johans Morales Borrero
Diagnostic Radiology
11 Years Exp | Stony Brook, NY
(0)
Stephen Haoru Liang
Critical Care Medicine
4 Years Exp | Stony Brook, NY
(0)
Seung Yup Lee
Diagnostic Radiology
10 Years Exp | Manhasset, NY
(0)
Rebecca Anne Finn
Public Health & General Preventive Medicine
34 Years Exp | Patchogue, NY
(0)
Arlene Christine Chua
Infectious Disease
| Nesconset, NY
(0)
Jesslynn George Ann Mannino
Nurse Practitioner
| Holbrook, NY
(0)
Johanna E Rahman
Pediatrics
12 Years Exp | Stony Brook, NY
(0)
John Stephen Gage
Anesthesiology
49 Years Exp | Stony Brook, NY
(0)
Lindsey Kueck
Hospice & Palliative Medicine
10 Years Exp | Riverhead, NY
(0)
Olga Komargodski
Physical Medicine & Rehabilitation
15 Years Exp | Baltimore, MD
(0)

How can I make an appointment with John O'connor?: You can find contact information for John O'connor here on Vitals.
Does John O'connor accept virtual/telehealth appointments?: John O'connor has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does John O'connor accept my insurance?: You can see the insurance plans that John O'connor accepts on their Vitals profile.
Which hospitals is John O'connor affiliated with?: John O'connor is affiliated with Peconic Bay Medical Center.
Is John O'connor accepting new patients?: John O'connor is accepting new patients on Vitals. View John O'connor's profile on Vitals to make an appointment.

This provider profile is built using data from:

NPPES NPI Registry
State medical licensing boards
Healthcare system and provider network data

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.

Copyright © 2026 Vitals Consumer Services, LLC. US Patent No. 8, 694, 441. All Rights Reserved.
As more fully set forth in this website's terms of use . (1) nothing contained on or offered by or through this website should be construed as medical advice and should not be relied upon for medical diagnosis or treatment. Vitals Consumer Services, LLC ("Vitals"). the provider of this website, does not recommend or endorse any particular healthcare provider whose information or ratings appear on this website; and (2) Vitals has granted you a limited license to access and use this website for your own noncommercial use. You are not permitted to copy, reproduce, distribute, transmit, mirror, frame, scrape, extract, wrap, create derivative works of, reverse engineer, decompile or disassemble any part or aspect of this website.