NPPES file of Aug 9, 2026

Carl Ronald Duncan, MD

Diagnostic Radiology Physician · Annapolis, MD

Carl Ronald Duncan, MD is a diagnostic radiology physician with a practice address in Annapolis, Maryland, and NPI 1346237369, issued on Oct 4, 2005. Check the license (Maryland D0063737, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1346237369
Name
Carl Ronald Duncan
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License numbers
D0063737 MD
MD018124E PA
Self-reported in NPPES; status is on the state search
Practice location
2002 Medical Pkwy, Annapolis, MD 21401
Phone
(410) 266-2770
Enumerated
Oct 4, 2005
Record last updated
Nov 13, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(410) 841-6251
Medicaid ID
081481401 MD
Medicare enrollment
Enrolled (PECOS I20240729003073); accepts Medicare assignment
Medical or professional school
Hahnemann University College Of Medicine, 1973
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2002 Medical Pkwy

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. George Adams, M.D.Diagnostic Radiology Physician1407858350
  2. Bolanle Akinyele, M.D.Cardiovascular Disease Physician1265788152
  3. Jonathan Altschuler, M.D.Cardiovascular Disease Physician1013924950
  4. Bryan Ambro, MDPlastic Surgery within the Head & Neck (Otolaryngology) Physician1821176017
  5. Michael-Anne Ashford, PA-CMedical Physician Assistant1447500707
  6. Samuel Barone, MDOphthalmology Physician1932256153

Verify Carl Ronald Duncan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of Physicians
    Search for license D0063737
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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71% fewer Medicare Part D claims than the average diagnostic radiology physician in 2024

15 Medicare Part D claims, against an average of 51 among the 2,711 providers of this specialty who prescribed in Part D.

  1. Carl Duncan15
  2. Specialty average51

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 86.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score75.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,000.00

1 payment: consulting fee; the largest payer was Leica Microsystems Inc. The 8,048 providers of this specialty with any payment received $2,488.38 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Carl Duncan$1,000.00
  2. Specialty average$2,488.38

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Delaware Radiology Associates PAJohns Island, SC
  2. Maryland Imaging Network PCJohns Island, SC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Carl Ronald Duncan among 877 diagnostic radiology physician records in Maryland

Carl Ronald Duncan, MD is one of 877 diagnostic radiology physician records with a practice address in Maryland. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 92% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated1973 · median 2003 among the 604 with a school on file
  • Record last updated2007 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in Maryland

There are 877 diagnostic radiology physician records in Maryland.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. George Adams, M.D.Annapolis, MD 214011407858350
  2. Vernon Croft, M.D.Annapolis, MD 214011871595587
  3. Mark Davis, MDAnnapolis, MD 214011104810761
  4. Paula Decandido, M.D.Annapolis, MD 214011538161336
  5. Alphonso Dial, M.D.Annapolis, MD 214011396729505
  6. John Filigenzi, M.D.Annapolis, MD 214011861481376
  7. Thomas Lank, M.D.Annapolis, MD 214011093706251
  8. Nicholas Malakis, M.D.Annapolis, MD 214011497746382

Common questions

What is Carl Ronald Duncan, MD's NPI number?

Carl Ronald Duncan, MD's National Provider Identifier (NPI) is 1346237369, issued on Oct 4, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Carl Ronald Duncan, MD located?

The NPPES record lists a practice address at 2002 Medical Pkwy, Annapolis, MD, 21401. Phone: (410) 266-2770. Providers update this record themselves, so call before visiting.

How can I verify Carl Ronald Duncan, MD's license?

NPPES lists Maryland license number D0063737, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Carl Ronald Duncan, MD prescribe under Medicare Part D?

In 2024, Carl Ronald Duncan, MD had 15 Medicare Part D claims; the average among diagnostic radiology physician prescribers was 51. Part D covers Medicare prescriptions only.

What is Carl Ronald Duncan, MD's MIPS final score?

The 2023 MIPS final score is 86.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.