NPPES file of Aug 9, 2026

Adrienne N. Duncan, PA-C

Medical Physician Assistant · Rockville, MD

Adrienne N. Duncan, PA-C is a medical physician assistant with a practice address in Rockville, Maryland, and NPI 1902086572, issued on Nov 12, 2007. Check the license with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1902086572
Name
Adrienne N. Duncan
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
Practice location
9901 Medical Center Dr, Rockville, MD 20850
Phone
(240) 826-6000
Enumerated
Nov 12, 2007
Record last updated
Jun 11, 2013 (not updated in 13 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 9901 Medical Center Dr

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

  1. Crystal Addison, P.T.Physical Therapist1407079577
  2. Olatejumade AdegbenroPharmacist1366889768
  3. Aaron Adler, PA-CPhysician Assistant1346571767
  4. Mehrdad Akhlaghi, MDInternal Medicine Physician1124019062
  5. Nelson Akwo, PHARM.D.Pharmacist1902054273
  6. Jude Alexander, MDPsychiatry Physician1093706939

Verify Adrienne N. Duncan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this professionCheck 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
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66% fewer Medicare Part D claims than the average medical physician assistant in 2024

392 Medicare Part D claims for 135 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D.

  1. Adrienne Duncan392
  2. Specialty average1,148

Most prescribed

  1. Famotidine49 claims
  2. Omeprazole42 claims
  3. Esomeprazole Magnesium32 claims
  4. Pantoprazole Sodium30 claims
  5. Sucralfate22 claims
  6. Creon19 claims

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.

Industry payments in 2024: $3,280.95

165 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Adrienne Duncan$3,280.95
  2. Specialty average$1,055.00

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

Adrienne N. Duncan among 871 medical physician assistant records in Maryland

Adrienne N. Duncan, PA-C is one of 871 medical physician assistant records with a practice address in Maryland. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 22% of them.

  • NPI issued2007 · 22% of these records are older, 66% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileNo · 54% of these records are
  • Record last updated2013 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Physician Assistant providers in Maryland

There are 871 medical physician assistant records in Maryland.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Leonard ChornockRockville, MD 208501811912942
  2. Debra Folden, PARockville, MD 208501760422950
  3. Lindsay Gonzalez, PA-CRockville, MD 208501538481601
  4. Amarjot Kaur, PA-CRockville, MD 208501831380849
  5. Richard Martin, PA-CRockville, MD 208501356651426
  6. Natalee PalacioRockville, MD 208501336327899
  7. Kristi RoodRockville, MD 208501144253634
  8. Claire Rosche Matzzie, PA-CRockville, MD 208501225199631

Common questions

What is Adrienne N. Duncan, PA-C's NPI number?

Adrienne N. Duncan, PA-C's National Provider Identifier (NPI) is 1902086572, issued on Nov 12, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Adrienne N. Duncan, PA-C located?

The NPPES record lists a practice address at 9901 Medical Center Dr, Rockville, MD, 20850. Phone: (240) 826-6000. Providers update this record themselves, so call before visiting.

How can I verify Adrienne N. Duncan, PA-C's license?

Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does Adrienne N. Duncan, PA-C prescribe under Medicare Part D?

In 2024, Adrienne N. Duncan, PA-C had 392 Medicare Part D claims for 135 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.

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.