Kristen A. O'brien
Experienced in Ulcerative Colitis

Dr. Kristen A. O'brien

Family Medicine
Northwell Health
Mather Primary Care At East Setauket
3 Technology Drive, Suite 100, 
East Setauket, NY 
On Staff At
Offers Telehealth

Experienced in Ulcerative Colitis
Northwell Health
Mather Primary Care At East Setauket
3 Technology Drive, Suite 100, 
East Setauket, NY 
OverviewInsuranceLocationsClinical ResearchSimilar Doctors

Overview

Kristen O'brien is a primary care provider, practicing in Family Medicine in East Setauket, New York. Dr. O'brien is rated as an Experienced provider by MediFind in the treatment of Ulcerative Colitis. Her top areas of expertise are High Cholesterol, Vitamin D Deficiency, Infant Hyperglycemia, and Vitamin B12 Deficiency Anemia.

Her clinical research consists of co-authoring 15 peer reviewed articles. MediFind looks at clinical research from the past 15 years.

Graduate Institution
SUNY At Buffalo-School Of Medicine & Biomedical Sciences
Specialties
Family Medicine
Licenses
Family Medicine in NY
Board Certifications
American Board Of Family Medicine
Hospital Affiliations
Mather Hospital
Hofstra/Northwell School Of Medicine/Nursing
Huntington Hospital
South Shore University Hospital
Katz Institute For Women's Health
Languages Spoken
English
Gender
Female
Awards
Patients' Choice Award Recipient (2025
2024)

Insurance

Accepted insurance can change. Please verify directly with the provider.

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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Anthem
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
CareFirst
  • HMO
  • POS
  • PPO
Cigna
  • EPO
  • HMO
  • PPO
EmblemHealth
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER COMMERCIAL
  • OTHER MEDICARE PART D
Health Care Services Corporation
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Health First
  • HMO
  • POS
Highmark
  • EPO
  • HMO
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Independent Health
  • EPO
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
MVP Health
  • EPO
  • PPO
Northwell Health
  • INSURANCE PLAN
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Walgreens
  • MEDICARE DISCOUNT CARD
  • MEDICARE PDP
  • OTHER MEDICARE
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 13 Less Insurance Carriers -

Locations

Mather Primary Care at East Setauket
3 Technology Drive, Suite 100, East Setauket, NY 11733
Call: 631-331-1000

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.


15 Total Publications

Increased PrEP uptake and PrEP-RN coincide with decreased HIV diagnoses in men who have sex with men in Ottawa, Canada.
Increased PrEP uptake and PrEP-RN coincide with decreased HIV diagnoses in men who have sex with men in Ottawa, Canada.
Journal: Canada communicable disease report = Releve des maladies transmissibles au Canada
Published: March 05, 2024
View All 15 Publications
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Experience:
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Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. O'brien's expertise for a condition
ConditionClose
      • Advanced
      • High Cholesterol
        Dr. O'brien is
        Advanced
        . Learn about High Cholesterol.
        See more High Cholesterol experts
      • Infant Hyperglycemia
        Dr. O'brien is
        Advanced
        . Learn about Infant Hyperglycemia.
        See more Infant Hyperglycemia experts
      • Vitamin D Deficiency
        Dr. O'brien is
        Advanced
        . Learn about Vitamin D Deficiency.
        See more Vitamin D Deficiency experts
      • Experienced
      • Agranulocytosis
        Dr. O'brien is
        Experienced
        . Learn about Agranulocytosis.
        See more Agranulocytosis experts
      • Alopecia Areata
        Dr. O'brien is
        Experienced
        . Learn about Alopecia Areata.
        See more Alopecia Areata experts
      • Anemia
        Dr. O'brien is
        Experienced
        . Learn about Anemia.
        See more Anemia experts
      • Asthma
        Dr. O'brien is
        Experienced
        . Learn about Asthma.
        See more Asthma experts
      • Asthma in Children
        Dr. O'brien is
        Experienced
        . Learn about Asthma in Children.
        See more Asthma in Children experts
      • Atherosclerosis
        Dr. O'brien is
        Experienced
        . Learn about Atherosclerosis.
        See more Atherosclerosis experts
      View All 100 Experienced Conditions
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