4.4
7 Ratings with 4 written Reviews
Summary
Dr. John Niedzwicki treats iron deficiency anemia, chronic lymphocytic leukemia, and short bowel syndrome, and performs home infusion therapy, infusion clinic procedures, and intravenous antibiotics. He has practiced oncology for 40 years and is affiliated with Saint Anne's Hospital and Morton Hospital.
Dr. Niedzwicki earned his medical degree from George Washington University School of Medicine & Health Sciences and completed his residency at Rhode Island Hospital. He sees patients in Dartmouth and North Dartmouth, Massachusetts, and speaks English, Portuguese, and Spanish. Patients on Vitals rate Dr. Niedzwicki 4.4 out of 5.
Dr. Niedzwicki earned his medical degree from George Washington University School of Medicine & Health Sciences and completed his residency at Rhode Island Hospital. He sees patients in Dartmouth and North Dartmouth, Massachusetts, and speaks English, Portuguese, and Spanish. Patients on Vitals rate Dr. Niedzwicki 4.4 out of 5.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 40 years of experience
- speaks English, Portuguese, Spanish
- Rhode Island Hospital
- 4 written reviews
- 1 specialty
- 6 areas of expertise
- 2 hospital affiliations
- 5 office locations
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
Office Locations
Dr. John Gregory Niedzwicki has 5 locationsHawthorn Medical Associates
535 Faunce Corner RdDartmouth, MA 02747 Tel: (508) 996-3991
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed
Compare with Similar Doctors
 |  |  |  |
| Dr. John Gregory Niedzwicki, MD | Dr. Timothy James Kinsella, MD | Alexander Orlando Richard Urzua | Dr. Geoffrey Abbott Allen, MD |
| Oncology | Radiation Oncology | Addiction Medicine | Oncology |
| Accepts New Patients | Accepts New Patients | ||
| 40 Years of Experience | 52 Years of Experience | 67 Years of Experience | 33 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Speaks English, Portuguese, Spanish | Speaks English, Portuguese, Spanish | Speaks English, Spanish | |
| Dartmouth , MA | Providence , RI | PEMBROKE PINES , FL | Providence , RI |
| Med School: George Washington University School Of Medicine & Health Sciences | Med School: University Of Rochester School Of Medicine & Dentistry | Med School: University Central Del Caribe School Of Medicine | Med School: University Of North Carolina At Chapel Hill School Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. John Gregory Niedzwicki
Medical Specialties
Dr. John Gregory Niedzwicki has the following specialty
Specialty Expertise
Dr. John Gregory Niedzwicki has the following 6 areas of expertise
Certifications, License, & Education
40 Years Experience
Dr. John Gregory Niedzwicki holds an expired medical license in the state of Massachusetts.
Medical License
Medical Doctor with an expired medical license in the state of Massachusetts that expired in 2026.
Education & Training
Residency
Completed their residency at Rhode Island Hospital.
Medical School
Graduated from George Washington University School Of Medicine & Health Sciences in 1986.
NPI Number
Dr. Niedzwicki's NPI number is 1306812367.
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Frequently Asked Questions
- What languages does Dr. John Niedzwicki speak?
- Dr. John Niedzwicki speaks English, Portuguese, and Spanish.
- How can I make an appointment with Dr. John Niedzwicki?
- You can find contact information for Dr. John Niedzwicki here on Vitals.
- Does Dr. John Niedzwicki accept virtual/telehealth appointments?
- Dr. John Niedzwicki has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Where is Dr. John Niedzwicki's office located?
- Dr. John Niedzwicki's office is located at 535 Faunce Corner Rd, Dartmouth, MA, 02747.
- Which hospitals is Dr. John Niedzwicki affiliated with?
- Dr. John Niedzwicki is affiliated with Saint Annes Hospital and Morton Hospital.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
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