My Locations

Duke Outpatient Clinic
4220 N Roxboro St
Second floor
Durham, NC 27704-1826

About Me

After 20 years of clinical and research experience using low carbohydrate, ketogenic diets, I am continually amazed at how health can be improved by just changing the food that someone eats. I use an approach that is simple and effective, and evidence-based. Medical conditions, like type 2 diabetes, obesity, hypertension, GERD, fatty liver, and PCOS, can all be improved or even reversed through food. I am specialized in internal Medicine and obesity medicine, and I am the author of the books End Your Carb Confusion, The New Atkins for a New You, Keto Clarity, and Cholesterol Clarity.

Current Appointments and Affiliations
Languages
English

Training

Board Certifications
American Board of Internal Med, Internal Medicine
Residency
Internal Medicine, University of Kentucky Medical Center, 1990
Education
MD, University of Wisconsin School of Medicine and Public Health, 1986
Fellowship
General Internal Medicine, Duke University Medical Center, 1992

Clinical Focus and Research

My Research Interests

I am guest editor for special issues of several journals, I coordinate a medical school elective on Medical Obesity Management, and I speak at many research and public meetings. My clinical research now involves documenting and fine-tuning the effects of medical nutritional therapy, including nutritional ketosis.

Publications

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.

Patient Reviews

Patient comments are gathered from our Press Ganey Patient Survey and displayed in their entirety.
Patients are de-identified for confidentiality and patient privacy

Insurance

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

  • Aetna
    • Aetna Choice POS, Aetna Choice POS II
    • Aetna Medicare Assure Plan (HMO D-SNP)
    • Aetna/CVS Health
    • 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 Value Plan (HMO)
    • Aetna Medicare Essential Plan (PPO)
    • Aetna Medicare Eagle Plan (PPO)
    • Aetna Open Access HMO, Open Access Aetna Select, Aetna Open Access 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
  • Ambetter
    • Ambetter of North Carolina
  • Blue Cross Blue Shield of NC
    • 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
    • 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 Group Plans
    • Duke Basic
    • Duke Select
  • Experience Health
    • Experience Health Medicare Advantage (HMO) Plan
  • First Health
  • Gateway Health Alliance
  • Halifax Physician-Hospital Organization
    • Halifax Physician-Hospital Organization plans*
    • *This plan is only accepted at Duke University Hospital, Duke Regional Hospital, Duke Raleigh Hospital, and Duke HomeCare & Hospice.
  • Healthgram
  • Humana
    • 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
  • Medicare
    • First Medicare Direct
    • Medicare Part A
    • Medicare Part B
  • MultiPlan / Private Healthcare Systems
  • NC Medicaid
    • WellCare of North Carolina
    • UnitedHealthcare Community Plan
    • NC Medicaid Direct
    • Healthy Blue
    • Carolina Complete Health
    • AmeriHealth Caritas North Carolina
  • OneNet PPO
  • Optima Health
    • FAMIS*
    • Optima Family Care (Medicaid HMO in VA)*
    • Optima Individual & Family (On & Off Exchange Plans)
    • Optima Plus (PPO)
    • Optima Vantage (HMO)
    • *Duke Primary Care, Duke University Hospital, Duke Regional Hospital, and Duke Raleigh Hospital are not participating with this plan.
  • TRICARE
    • TRICARE Prime
    • TRICARE Prime Remote
    • TRICARE Select
  • United Healthcare
    • 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.

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.

  • Adapt Your Life, Inc
  • Hill United, Inc