DR. JAMES R DUNCAN MD
NPI 1437176997
Radiology - Vascular & Interventional Radiology in Saint Louis, MO
About Dr. James R Duncan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAMES R DUNCAN MD (NPI 1437176997) is an individual vascular & interventional radiology provider in Saint Louis, Missouri, licensed in Missouri (105555) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and is a graduate of Washington University School Of Medicine (1988).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Accepted Insurance
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. James R Duncan Md 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 James Duncan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 373 clinicians in this Medicare group
Rolla, MO 65401
- Reassigned Medicare billing, Missouri enrollment
- 347 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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Barnes Jewish Hospital
Acute Care Hospitals · Saint Louis, MOMissouri Baptist Medical Center
Acute Care Hospitals · Town And Country, MOBarnes-Jewish West County Hospital
Acute Care Hospitals · Creve Coeur, MOSt Louis Childrens Hospital
Childrens · Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63110 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
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 James Duncan's NPI number?
The NPI number for James Duncan is 1437176997. It was assigned to this individual provider in the NPPES registry on July 17, 2006.
Where is James Duncan located?
James Duncan practices at 510 S Kingshighway Blvd Dept Radiology, Saint Louis, MO 63110. The listed phone number is (314) 362-7200.
What is James Duncan's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Vascular & Interventional Radiology, with taxonomy code 2085R0204X.
Is James Duncan enrolled in Medicare?
Yes. James 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 James Duncan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Duncan reassigns Medicare benefits to 2 organizations: Washington University (Saint Louis, MO) and Miracl, LLC (Rolla, MO). 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 James Duncan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does James Duncan accept?
Health plans from Anthem Blue Cross and Blue Shield and Cox HealthPlans list James Duncan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is James Duncan affiliated with any hospitals?
According to CMS data, James Duncan is affiliated with Barnes Jewish Hospital, Missouri Baptist Medical Center, Barnes-Jewish West County Hospital and St Louis Childrens Hospital.
When was this NPI record last updated?
The NPPES record for James Duncan was last updated on April 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.
# Dr. James R Duncan, MD · NPI 1437176997
Vascular & Interventional Radiology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since July 17, 2006.
## Identity
- **NPI:** 1437176997 (Entity type: Individual)
- **Enumerated:** July 17, 2006
- **Primary specialty:** Radiology - Vascular & Interventional Radiology · taxonomy 2085R0204X
- **State license:** 105555 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 510 S KINGSHIGHWAY BLVD, DEPT RADIOLOGY, Saint Louis, MO 63110-1016
- **Phone:** (314) 362-7200 · **Fax:** (314) 747-4189
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Washington University (NPI 1962442475, Saint Louis, MO); Miracl, LLC (NPI 1205304300, Rolla, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Washington University School Of Medicine, class of 1988
## Record status
- **NPPES last updated:** April 17, 2025
- **Other identifiers:** Medicaid 204998306 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1437176997) · Data from the CMS NPPES public registry.