Skip to main content
JD

Dr. James D. Duncan

MD·Internal Medicine

3581 HARRODSBURG RD, Lexington, KY 40513

Medicare Accepted
Telehealth Available
29+ Years Experience

Contact Dr. Duncan

(859) 313-3400Get Directions

3581 HARRODSBURG RD, Lexington, KY 40513

For Providers

Manage This Profile

Specialty

Internal Medicine Physicians

Coverage

Medicare + 8 Networks

Telehealth

Available

About Dr. James D. Duncan

Background and practice information

Dr. James D. Duncan is an internal medicine physician with over 29 years of clinical experience serving patients in the Lexington, KY area. He completed his medical training at University Of Kentucky College Of Medicine and has been in practice since 1997. He currently practices at Kentuckyone Health Medical Group Inc.

Dr. James D. Duncan's clinical practice focuses on treating patients with hypothyroidism (underactive thyroid), high cholesterol, nerve pain and seizures, and related conditions. In addition to internal medicine, he also specializes in hospitalist.

Dr. James D. Duncan is in-network with 8 insurance providers, including Aetna, Cigna, Humana, and 5 more. Patients are encouraged to verify coverage with his office before scheduling an appointment.

Additional specialties: Hospitalist

At a Glance

GenderMale
Experience29+ years
MedicareAccepted
TelehealthAvailable

Education

Medical SchoolUniversity Of Kentucky College Of Medicine
Graduated1997

Are you Dr. Duncan?

Update your photo, bio, contact info, and accepting-new-patients status. Earn the “Verified” badge.

Claim this profile

Practice Locations

1 location

Kentuckyone Health Medical Group Inc

Primary

3581 Harrodsburg Rd

Lexington, KY 40513

(859) 313-3400

Treatment & Experience

Clinical practice and procedure experience for Dr. James D. Duncan

Services & Procedures

Dr. James D. Duncan's clinical practice encompasses office visits, hospital care, nursing facility care, and 2 other areas of care. Based on Medicare utilization data, Dr. James D. Duncan has provided a substantial volume of services, reflecting an active and established practice in internal medicine.

Office Visits

237 services

Dr. James D. Duncan provides patient consultations ranging from routine follow-ups to comprehensive evaluations, with follow-up visit being a key part of his practice. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 70% below the billed amount.

Hospital Care

70 services

Dr. James D. Duncan manages inpatient hospital care including admissions, daily rounds, critical care, and discharge coordination, with nursing facility admission being a key part of his practice. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 49% below the billed amount.

Nursing Facility Care

679 services

Dr. James D. Duncan provides ongoing medical oversight for patients in nursing facilities, including nursing facility visit and nursing facility discharge day management, 30 minutes or less. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 53% below the billed amount.

Preventive Care

71 services

Dr. James D. Duncan delivers preventive health services including wellness visits, vaccinations, and health screenings, including annual wellness visit and flu vaccine. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 52% below the billed amount.

Diagnostic Testing

32 services

Dr. James D. Duncan orders and interprets diagnostic tests to support clinical decision-making, with hemoglobin A1c test being a key part of his practice. Medicare patients typically pay significantly less than the standard charge for these services, with Medicare-approved rates averaging 52% below the billed amount.

Treatment Approach

Dr. James D. Duncan's treatment approach includes prescribing Levothyroxine Sodium, Atorvastatin Calcium, Gabapentin for his patients. These medications are commonly used for treating hypothyroidism (underactive thyroid), high cholesterol, nerve pain and seizures. He prescribing profile reflects experience across a wide range of treatments, addressing multiple aspects of patient care within his specialty. Dr. James D. Duncan has treated a significant number of Medicare patients, demonstrating an established practice in this area.

Levothyroxine Sodium— for hypothyroidism (underactive thyroid)
Atorvastatin Calcium— for high cholesterol
Gabapentin— for nerve pain and seizures
Pantoprazole Sodium— for acid reflux and stomach ulcers
Hydrocodone/Acetaminophen(Hydrocodone-Acetaminophen)— for moderate to severe pain

Source: CMS Medicare Provider Utilization and Payment Data, 2023.

Insurance Networks

Accepted insurance plans and networks

Dr. James D. Duncan accepts 39 plans from 8 insurers, including Cigna, Humana, Aetna.

Az Localflex Excl Ebh And Pathwell
Az Localflex Incl Ebh And Pathwell
Az Localflex Incl Ebh Excl Pathwell
Healthpartners Qualified Network
Localplus
Localplus Exclude Ebh With Pathwell
Localplus Sar
Localplus With Ebh Plus Pathwell
Mvp Mohawk Valley Physicians
National OapOAP
National PpoPPO
National Ppo Sar 1PPO
National Ppo Sar IiPPO
Oap Shared Admin RepricingOAP
Pathwell OapOAP
Pathwell PpoPPO
Priority Health Alliance

Source: CMS Transparency in Coverage filings (March 2026). Network participation may change — verify with the provider's office before scheduling.

Financial Transparency

Industry payment disclosures

Pharmaceutical and medical device companies disclosed $456 in payments to Dr. James D. Duncan in 2024, primarily from ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) for food and beverage. These disclosures are required by federal law under the Physician Payments Sunshine Act.

Top Paying Companies

ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.)$111
Otsuka America Pharmaceutical, Inc.$83
Corium, LLC$51
Boehringer Ingelheim Pharmaceuticals, Inc.$48
ABBVIE INC.$44
Food and Beverage: $456

Source: CMS Open Payments, 2024.

Patient Reviews

Reviews and ratings from patients

Loading reviews...

Is This Your Practice?

This profile appears in 8 insurance networks

  • Update your photo, bio, and contact info
  • Mark whether you’re accepting new patients
  • Earn the “Verified” badge

Starter $29 one-time. Professional from $59/mo unlocks review responses, office hours, photo gallery, and more.

About Internal Medicine

Specialty overview and common conditions

An internal medicine physician (internist) is a medical doctor who specializes in the prevention, diagnosis, and treatment of diseases in adults. Internists are trained to manage complex, chronic, and multi-system illnesses, often serving as primary care doctors for adults or as consultants to other...

Common conditions treated by internal medicine specialists:

  • Type 2 Diabetes Mellitus
  • Hypertension (High Blood Pressure)
  • Hyperlipidemia (High Cholesterol)
  • Coronary Artery Disease (Heart Disease)
Learn more about internal medicine specialists

Frequently Asked Questions

Common questions about James D. Duncan

Does Dr. Duncan accept Medicare?

Yes, Dr. Duncan accepts Medicare assignment. Patients with Medicare coverage can see Dr. Duncan and typically pay less out of pocket when using a provider who accepts Medicare assignment.

What insurance does Dr. Duncan accept?

Dr. Duncan is in-network with 8 insurance providers, including Aetna, Cigna, Humana, Medicare, Molina Healthcare, and 3 more. Insurance networks can change, so patients should verify their specific plan coverage directly with Dr. Duncan's office before scheduling.

Does Dr. Duncan offer telehealth or virtual appointments?

Yes, Dr. Duncan offers telehealth services, allowing patients to have virtual consultations from the comfort of their home. Contact the office to schedule a telehealth appointment.

What conditions does Dr. Duncan treat?

As a internal medicine specialist, Dr. Duncan commonly treats conditions including type 2 diabetes mellitus, hypertension (high blood pressure), hyperlipidemia (high cholesterol), coronary artery disease (heart disease), chronic obstructive pulmonary disease (copd), and other related health concerns. Contact the office to discuss your specific healthcare needs.

What medications does Dr. Duncan commonly prescribe?

Based on Medicare prescribing data, Dr. Duncan commonly prescribes medications including Levothyroxine Sodium, Atorvastatin Calcium, Gabapentin. The specific medications prescribed depend on each patient's individual diagnosis and health needs. Patients should discuss treatment options directly with Dr. Duncan during their consultation.

Where did Dr. Duncan go to medical school?

Dr. Duncan completed medical training at University Of Kentucky College Of Medicine and has been practicing since 1997, bringing over 29 years of clinical experience.

Where is Dr. Duncan's office located?

Dr. Duncan practices at 3581 HARRODSBURG RD, Lexington, KY 40513 at KENTUCKYONE HEALTH MEDICAL GROUP INC. You can reach the office by calling (859) 313-3400.

How do I make an appointment with Dr. Duncan?

To schedule an appointment with Dr. Duncan, call the office at (859) 313-3400. New patients should have their insurance information and medical records ready when calling.

Data source: CMS National Provider Registry ·

Medical Disclaimer: This content is for informational purposes only and is not a substitute for professional medical advice. Learn more about our editorial standards

Back to Search