NPPES file of Aug 9, 2026

Dianna Marie Brown, FNP-C

Family Nurse Practitioner · Rockville, MD

Dianna Marie Brown, FNP-C is a family nurse practitioner with a practice address in Rockville, Maryland, and NPI 1063193399, issued on Jul 28, 2023. Check the license (Maryland R204674, as entered in NPPES) 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
1063193399
Name
Dianna Marie Brown
Credential
FNP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
R204674 MD
Self-reported in NPPES; status is on the state search
Practice location
9715 Medical Center Dr Ste 202, Rockville, MD 20850
Phone
(301) 377-9766
Enumerated
Jul 28, 2023
Record last updated
Nov 13, 2024
Fax
(240) 715-9125
Medicare enrollment
Enrolled (PECOS I20240123003671); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 9715 Medical Center Dr Ste 202

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

  1. Thomas Wang, M.D.Cardiovascular Disease Physician1558413971
  2. Xiumei ZhaoNurse Practitioner1619554938

Verify Dianna Marie Brown in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license R204674
    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
Find the Maryland license search

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84% fewer Medicare Part D claims than the average family nurse practitioner in 2024

210 Medicare Part D claims for 80 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims.

  1. Dianna Brown210
  2. Specialty average1,305

Most prescribed

  1. Amlodipine Besylate35 claims
  2. Losartan Potassium28 claims
  3. Metoprolol Succinate24 claims
  4. Atorvastatin Calcium20 claims
  5. Eliquis12 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: $277.45

13 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Dianna Brown$277.45
  2. Specialty average$650.95

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

Bills Medicare through one group practice

  1. Maryland Cardiac Care, LLCRockville, MD

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

Dianna Marie Brown among 4,124 family nurse practitioner records in Maryland

Dianna Marie Brown, FNP-C is one of 4,124 family nurse practitioner records with a practice address in Maryland. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 78% of them.

  • NPI issued2023 · 78% of these records are older, 14% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2023 · median 2019 among the 2,370 with a school on file
  • Record last updated2024 · 41% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

146 family nurse practitioner records list a practice address in Rockville

They are 146 of the 14,353 NPPES records with a practice address in Rockville, and 4,124 family nurse practitioner records in Maryland.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Gussie Assam, FNP-CRockville, MD 208501184981300
  2. Kelley Bennett, CRNPRockville, MD 208501932267903
  3. Leslie Boylan, CRNPRockville, MD 208501700937075
  4. Chibuzo Efuribe, DNP, FNP, PMHNP-BCRockville, MD 208501861776346
  5. Maria Ferraris Araneta, CRNPRockville, MD 208501679579148
  6. Andrea Hagen, CRNPRockville, MD 208501952606634
  7. Lisa Hockman, CRNPRockville, MD 208501265465165
  8. Lemolls Johny, CRNPRockville, MD 208501467639971

Common questions

What is Dianna Marie Brown, FNP-C's NPI number?

Dianna Marie Brown, FNP-C's National Provider Identifier (NPI) is 1063193399, issued on Jul 28, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Dianna Marie Brown, FNP-C located?

The NPPES record lists a practice address at 9715 Medical Center Dr Ste 202, Rockville, MD, 20850. Phone: (301) 377-9766. Providers update this record themselves, so call before visiting.

How can I verify Dianna Marie Brown, FNP-C's license?

NPPES lists Maryland license number R204674, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does Dianna Marie Brown, FNP-C prescribe under Medicare Part D?

In 2024, Dianna Marie Brown, FNP-C had 210 Medicare Part D claims for 80 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.