Nancy M. McGreal, MD
Accepting New Patients
Duke Health Provider question
What I love about the patients is that they are strong – mentally, emotionally, and physically.
– Nancy M. McGreal, MD

Nancy M. McGreal, MD

Gastroenterologist, Pediatric Gastroenterologist

Duke Health Provider question
Accepting New Patients
Call for an Appointment
919-862-5015
Adult Appointments
919-668-4000
Pediatric Appointments
Areas of Expertise
Where I See Patients
Duke Children's Hospital & Health Center - Durham, NC
Duke Endoscopy Clinic - Clinic 2H - Durham, NC
Duke Gastroenterology Clinic - Clinic 2J - Durham, NC
Duke Gastroenterology Clinic at Brier Creek - Raleigh, NC
Board Certified
American Board of Internal Med, Gastroenterology
American Board of Pediatrics, Pediatric Gastroenterology
What I love about the patients is that they are strong – mentally, emotionally, and physically.
– Nancy M. McGreal, MD

About Me

I am an adult and pediatric gastroenterologist at Duke. I see patients who have Crohn’s disease, which is an inflammatory disorder that can affect any part of the gut, and ulcerative colitis, which affects the colon. These are chronic diseases for which we don’t have cures but do have treatments that can give people back their quality of life. What I love about the patients is that they are strong – mentally, emotionally, and physically. Their endurance and fortitude are what endeared them to me. Duke is really a special place. Since many of the body systems can be affected in a number of conditions, having a wealth of expertise in a number of disorders at the same center helps coordination of care. From the doctors to the nurses to the ancillary staff, everyone is always very focused on caring for patients.

Current Appointments and Affiliations
Languages I Speak
English

Call for an Appointment

919-862-5015
Adult Appointments
919-668-4000
Pediatric Appointments

Areas of Expertise

Ratings and Reviews

The Patient Rating score is an average of all responses to care provider related questions on our nationally-recognized Press Ganey Patient Satisfaction Survey. Learn more about our survey process. Responses are measured on a scale of 1 to 5 with 5 being the best score. Patients who see some types of providers receive a different version of the patient satisfaction survey. Those results are not available on DukeHealth.org.

Overall Provider Rating
4.88 out of 5
84 ratings, 12 reviews

Training and Education

Board Certification
American Board of Internal Med, Gastroenterology
American Board of Pediatrics, Pediatric Gastroenterology
Fellowship
Adult and Pediatric Gastroenterology, University of Chicago Medical Center (Illinois), 2009
Residency
Internal Medicine-Pediatrics, University of California–San Diego Medical Center (California), 2004
Education
MD, University of Maryland School of Medicine, 2000

Clinical Focus and Research

Publications and Grants

Insurance Accepted

Duke Health contracts with most major health insurance carriers and transplant networks, including the ones listed below.

    • Aetna Choice POS, Aetna Choice POS II
    • Aetna Elect Choice HMO, Aetna Open Access Elect Choice
    • Aetna Health Network Only, Aetna Health Network Option
    • Aetna HMO
    • Aetna Limited Benefit Insurance PPO
    • Aetna Managed Choice POS
    • Aetna Medicare Assure Plan (HMO D-SNP)
    • Aetna Medicare Eagle Plan (PPO)
    • Aetna Medicare Essential Plan (PPO)
    • Aetna Medicare Value Plan (HMO)
    • Aetna Open Access HMO, Open Access Aetna Select, Aetna Open Access Managed Choice
    • Aetna Open Choice PPO
    • Aetna PCP Coordinated POS Plan
    • Aetna Quality Point of Service (QPOS)
    • Aetna Select HMO
    • Aetna Traditional Choice
    • Aetna Voluntary Indemnity Group Plan
    • Aetna Whole Health – Duke WakeMed WKCC
    • Aetna/CVS Health
    • Ambetter of North Carolina
    • Blue Advantage
    • Blue Medicare (HMO, PPO)*
    • Blue Options (123, PPO, HSA)
    • Blue Select
    • NC State Employees Health Plan
    • *Duke HomeCare and Hospice does not participate in the plan.

    • Cigna Behavioral Health (*Limited eligibility)
    • Cigna Choice Plus
    • Cigna Connect Individual Family Plan
    • Cigna Open Access
    • Cigna Open Access Plus
    • *Please call Cigna Behavioral Heath to see if the provider is participating in your plan.

    • Duke Basic
    • Duke Select
    • Experience Health Medicare Advantage (HMO) Plan
  • Gateway Health Alliance
  • Healthgram
    • Humana Choice (PPO)
    • Humana Choice - Medicare Advantage (PPO)
    • Humana ChoiceCare - Medicare Advantage (PPO)
    • Humana Gold Choice - Medicare Advantage (PFFS)
    • Humana Gold Plus - Medicare Advantage (HMO)
    • Humana Medicare Advantage Group Plan - NC State Retirees
  • MedCost
    • First Medicare Direct
    • Medicare Part A
    • Medicare Part B
    • AmeriHealth Caritas North Carolina
    • Carolina Complete Health
    • Healthy Blue
    • NC Medicaid Direct
    • WellCare of North Carolina
    • TRICARE Prime
    • TRICARE Prime Remote
    • TRICARE Select
    • AARP Medicare Advantage Plan 2 (HMO-POS)
    • AARP Medicare Complete (HMO, PPO)*
    • AARP Medicare Complete Essential (HMO)*
    • All Savers Alternate Funding
    • All Savers Fully Insured
    • United Healthcare (HMO, PPO, POS)
    • United Healthcare Charter/Charter Balance/Charter Plus
    • United Healthcare Choice/Choice Plus
    • United Healthcare Core/Core Essential
    • United Healthcare Navigate/Navigate Plus/Navigate Balanced
    • United Healthcare Option PPO
    • United Healthcare Passport Connect Choice/Choice Plus
    • United Healthcare Passport Connect Options PPO
    • United Healthcare Select/Select Plus
    • United Healthcare Shared Services - Harvard Pilgrim/UHC Options PPO Network
    • United Medical Resources (UMR)
    • *Duke HomeCare and Hospice and mental health providers do not participate with the plan.

Before scheduling your appointment, we strongly recommend you contact your insurance company to verify that the Duke Health location or provider you plan to visit is included in your network. Your insurance company will also be able to inform you of any co-payments, co–insurances, or deductibles that will be your responsibility. If you proceed in scheduling an appointment and your health insurance benefits do not participate with Duke, your out of pocket liability may be higher. We will contact you regarding your coverage and patient liability. If you are uninsured, learn more about our financial assistance policy.

External Relationships

This faculty member (or a member of their immediate family) has reported outside activities with the companies or institutions listed below. This information has been reported to the health system leadership and, when appropriate, management plans are in place to address potential conflicts of interest.
  • Janssen Research & Development
  • Spark Healthcare LLC