DR. TIMOTHY JAMES DUNCAN M.D.
NPI 1669466504
Internal Medicine - Gastroenterology in Newport News, VA
About Dr. Timothy James Duncan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TIMOTHY JAMES DUNCAN M.D. (NPI 1669466504) is an individual gastroenterology provider in Newport News, Virginia, licensed in Virginia (0101251786) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS, is affiliated with Sentara Obici Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Timothy James Duncan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Timothy Duncan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chesapeake, VA 23321
- Reassigned Medicare billing, Virginia enrollment
- 570 clinicians in this Medicare group
Norfolk, VA 23502
- Reassigned Medicare billing, Virginia enrollment
- 1,901 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Sentara Obici Hospital
Acute Care Hospitals · Suffolk, VASentara Careplex Hospital
Acute Care Hospitals · Hampton, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 23606 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NEWPORT NEWS, VA 23606
NEWPORT NEWS, VA 23606
NEWPORT NEWS, VA 23606
NEWPORT NEWS, VA 23606
NEWPORT NEWS, VA 23606
NEWPORT NEWS, VA 23606
NEWPORT NEWS, VA 23606
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Timothy Duncan's NPI number?
The NPI number for Timothy Duncan is 1669466504. It was assigned to this individual provider in the NPPES registry on September 7, 2005.
Where is Timothy Duncan located?
Timothy Duncan practices at 1031 Loftis Blvd Ste 201, Newport News, VA 23606. The listed phone number is (757) 736-9850.
What is Timothy Duncan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Timothy Duncan enrolled in Medicare?
Yes. Timothy Duncan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Timothy Duncan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Duncan reassigns Medicare benefits to 2 organizations: Bayview Physician Services, PC (Chesapeake, VA) and Sentara Medical Group (Norfolk, VA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Timothy Duncan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Timothy Duncan affiliated with any hospitals?
According to CMS data, Timothy Duncan is affiliated with Sentara Obici Hospital and Sentara Careplex Hospital.
When was this NPI record last updated?
The NPPES record for Timothy Duncan was last updated on July 19, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.