DR. CARL RONALD DUNCAN MD
NPI 1346237369
Radiology - Diagnostic Radiology in Annapolis, MD
About Dr. Carl Ronald Duncan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CARL RONALD DUNCAN MD (NPI 1346237369) is an individual diagnostic radiology provider in Annapolis, Maryland, licensed in Maryland (D0063737) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS and is a graduate of Hahnemann University College Of Medicine (1973).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 11
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. Carl Ronald 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
4Medicare enrollment records show Carl Duncan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Annapolis, MD 21401
- Reassigned Medicare billing, Maryland and District of Columbia enrollments
- Also billed through NPI 1194825240 (District of Columbia)
- 25 clinicians in this Medicare group
Stevensville, MD 21666
- Reassigned Medicare billing, Maryland and South Carolina enrollments
- Also billed through NPI 1487296471 (South Carolina)
- 71 clinicians in this Medicare group
Silver Spring, MD 20904
- Reassigned Medicare billing, South Carolina enrollment
- 3 clinicians in this Medicare group
Newark, DE 19713
- Reassigned Medicare billing, South Carolina enrollment
- 3 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 46
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21401 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.
ANNAPOLIS, MD 21401
ANNAPOLIS, MD 21401
ANNAPOLIS, MD 21401
ANNAPOLIS, MD 21401
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 Carl Duncan's NPI number?
The NPI number for Carl Duncan is 1346237369. It was assigned to this individual provider in the NPPES registry on October 4, 2005.
Where is Carl Duncan located?
Carl Duncan practices at 2002 Medical Pkwy Suite 235, Annapolis, MD 21401. The listed phone number is (410) 266-2770.
What is Carl Duncan's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Carl Duncan enrolled in Medicare?
Yes. Carl 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 Carl Duncan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Carl Duncan reassigns Medicare benefits to 4 organizations: Luminis Health Imaging, Inc. (Annapolis, MD), Maryland Imaging Network PC (Stevensville, MD), Community Radiology Associates Inc (Silver Spring, MD) and Delaware Radiology Associates PA (Newark, DE). 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 Carl Duncan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Carl Duncan was last updated on November 13, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.