0 reviews
Summary
Dr. William O'Brien treats rheumatoid arthritis, psoriasis, and systemic lupus erythematosus, and performs intravenous therapy and infusion clinic procedures. They practice rheumatology and are affiliated with NYU Tisch Hospital. Dr. O'Brien earned their medical degree from Albert Einstein College of Medicine of Yeshiva University and completed a residency at New York University, and sees patients in Haverhill, Massachusetts.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 18 years of experience
- 32 insurance plans accepted
- New York University
- 2 specialties
- 7 areas of expertise
- 1 hospital affiliation
- 1 office location
Office Location
William O'brien
1 Park WayHaverhill, MA 01830 Tel: (888) 227-3762
Mon8:30 am - 5:00 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 5:00 pm
Thu8:30 am - 5:00 pm
Fri8:30 am - 5:00 pm
Sat7:30 am - 11:30 am
SunClosed
Compare with Similar Doctors
![]() | ![]() | ![]() | ![]() |
| William O'brien, MD | Dr. Frank Anthony Scangarello | Dr. Daniel Phillip Magliulo | Dr. Muhammad I Rehman |
| Rheumatology | Rheumatology | Rheumatology | Rheumatology |
| Accepts New Patients | Accepts New Patients | ||
| 18 Years of Experience | 5 Years of Experience | 9 Years of Experience | 38 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option | No Virtual Visit Option |
| Haverhill , MA | Burlington , MA | Burlington , MA | Lexington , MA |
| Med School: Albert Einstein College Of Medicine Of Yeshiva University | Med School: Tufts University School Of Medicine | Med School: University Of Hawaii At Manoa | Med School: Allama Iqbal Medical College |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by William O'brien
Medical Specialties
William O'brien has the following 2 specialties
Specialty Expertise
William O'brien has the following 7 areas of expertise
Certifications, License, & Education
18 Years Experience
William O'brien holds an active medical license in the state of California.
Medical License
Medical Doctor with an active medical license in the state of California that expires in 2026.
Education & Training
Residency
Completed their residency at New York University.
Medical School
Graduated from Albert Einstein College Of Medicine Of Yeshiva University in 2008.
NPI Number
William O'brien's NPI number is 1043483837.
Similar doctors
Frequently Asked Questions
- Where is William O'brien's office located?
- William O'brien's office is located at 1 Park Way, Haverhill, MA, 01830.
- Does William O'brien accept my insurance?
- You can see the insurance plans that William O'brien accepts on their Vitals profile.
- Is William O'brien accepting new patients?
- William O'brien is accepting new patients on Vitals. View William O'brien's profile on Vitals to make an appointment.
- Does William O'brien accept virtual/telehealth appointments?
- William O'brien has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Which hospitals is William O'brien affiliated with?
- William O'brien is affiliated with Nyu Tisch Hospital.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews
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.



