Summary

Dr. William O'Brien is a rheumatologist with 41 years of experience treating patients with joint, muscle, and autoimmune conditions. They earned their medical degree from the Medical College of Wisconsin and completed residency training at University Hospital Health System. Dr. O'Brien is fluent in both English and Spanish, allowing them to serve a diverse patient population.

Dr. O'Brien practices at Cleveland Clinic Hillcrest Hospital and sees patients in Lawrence and Newburyport, Massachusetts. They specialize in treating various hernia conditions, including ventral hernias, inguinal hernias, and sports hernias. Their procedural expertise includes sedation management and pathology testing to help diagnose and monitor patient conditions. Patients have given Dr. O'Brien an average rating of 2.3 on Vitals.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 2.3
  • 41 years of experience
  • 50 insurance plans accepted
  • speaks English, Spanish
  • University Hospital Health System
  • 2 written reviews
  • 2 specialties
  • 17 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 2 office locations

Office Locations

William O'brien has 2 locations

William O'brien

500 Merrimack StLawrence, MA 01843
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
SatClosed
SunClosed

William O'brien

260 Merrimac StNewburyport, MA 01950
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

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William O'brien, MD
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William O'brien, MDDr. Caryn Anne Libbey, MDDr. Rui Zhang, MDDr. Angelica J Gonzalez
RheumatologyRheumatologyRheumatologyInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
2.3 
4.5 
4.3 
41 Years of Experience 51 Years of Experience 24 Years of Experience 34 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish Speaks English, Spanish Speaks English Speaks English
Lawrence , MANashua , NHNashua , NHNashua , NH
Med School: Medical College Of Wisconsin Med School: Tufts University School Of Medicine Med School: Shandong University School Of Medicine Med School: University Of The Philippines Manila College Of Medicine
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by William O'brien

  • Aetna
  • AmeriHealth - Medicaid
  • AmeriHealth - Medicaid (Managed)
  • Anthem Blue Cross
  • Anthem Blue Cross - Medicaid
  • Anthem Blue Cross - Medicaid (Managed)
  • Aultcare
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield - Medicaid
  • Buckeye Health Plan - Medicaid
  • Buckeye Health Plan - Medicaid (Managed)
  • CareSource
  • CareSource - Medicaid
  • CareSource - Medicaid (Managed)
  • CHAMPVA
  • Cigna
  • Devoted Health
  • GEHA
  • Geisinger Health Plan
  • Golden Rule
  • Humana
  • Humana - Medicaid
  • Humana - Medicaid (Managed)
  • Humana - Medicare (Advantage HMO)
  • MDwise
  • Medica
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medical Mutual
  • Medicare
  • Medicare - Medicare
  • Meritain Health
  • Molina Healthcare
  • Molina Healthcare - Medicaid
  • Molina Healthcare - Medicaid (Managed)
  • Optum Health
  • Oscar Health Insurance
  • STLDentalPlan| LLC
  • SummaCare
  • Three Rivers Providers Network (TRPN)
  • Three Rivers Providers Network (TRPN) - Medicare
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - Medicaid
  • UnitedHealthcare - Medicaid (Managed)
  • UnitedHealthcare - Medicare
  • UnitedHealthcare - Medicare (Advantage HMO)
  • UnitedHealthcare Oxford
  • UPMC Health Plan
  • Valor Health Plan

Medical Specialties

William O'brien has the following 2 specialties

Specialty Expertise

William O'brien has the following 17 areas of expertise

  • Appendicitis
  • Barrett Esophagus
  • Breast Cancer
  • Breast Diseases
  • Colorectal Cancer
  • Crohn's Disease
  • Gallbladder Diseases
  • Gallstones
  • Hemorrhoids
  • Hernia
  • Hiatal Hernia
  • Melanoma
  • Metastatic Breast Cancer
  • Pancreatic Diseases
  • Rheumatologist
  • Surgery
  • Ulcerative Colitis

Certifications, License, & Education

41 Years Experience

William O'brien holds an expired medical license in the state of Ohio.

Medical License

Medical Doctor with an expired medical license in the state of Ohio that expired in 2026.

Education & Training

Residency

Completed their residency at University Hospital Health System.

Medical School

Graduated from Medical College Of Wisconsin in 1985.

NPI Number

William O'brien's NPI number is 1477581395.

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Frequently Asked Questions

Where is William O'brien's office located?
William O'brien's office is located at 500 Merrimack St, Lawrence, MA, 01843.
How can I make an appointment with William O'brien?
You can find contact information for William O'brien here on Vitals.
Which hospitals is William O'brien affiliated with?
William O'brien is affiliated with Cleveland Clinic Hillcrest Hospital.
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.

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