NPPES file of Aug 9, 2026

Peggy Dienes, MSW

Clinical Social Worker · Gaithersburg, MD

Peggy Dienes, MSW is a clinical social worker with a practice address in Gaithersburg, Maryland, and NPI 1336288208, issued on Feb 6, 2007. Check the license (Maryland 10763, as entered in NPPES) with the Maryland board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1336288208
Name
Peggy Dienes
Credential
MSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
10763 MD
Self-reported in NPPES; status is on the state search
Practice location
16220 S Frederick Ave, Gaithersburg, MD 20877
Phone
(301) 978-9750
Enumerated
Feb 6, 2007
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 16220 S Frederick Ave

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

  1. Amir Assili, DPMFoot & Ankle Surgery Podiatrist1164448825
  2. Lisa Curwin, PH.D.Clinical Psychologist1679774020
  3. Adriana De Palma, LCSW-CClinical Social Worker1356691422
  4. Ronald Footer, D.P.M.Podiatrist1134106859
  5. Herbert Gould, M.D.Specialist1619998002
  6. Eddie Lam, D.M.DGeneral Practice Dentistry1881807709

Verify Peggy Dienes 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 10763
    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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221 clinical social worker records list a practice address in Gaithersburg

They are 221 of the 2,580 NPPES records with a practice address in Gaithersburg, and 9,007 clinical social worker records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other clinical social worker records in Maryland

  1. Laguy AbarakaFrederick, MD1467380378
  2. Fadi Abdallah, LCSW-CColumbia, MD1881620573
  3. Eleanor Abdel-Salam, LCSW-CCatonsville, MD1487300380
  4. Safiyya Abdul BariLanham, MD1588285423
  5. Shabana Abdullah, LCSW-CClarksville, MD1538937446
  6. Jane Abernathy, LCSWCBaltimore, MD1972587343
  7. Karla Abney, LGSW, LMSWRockville, MD1215012745
  8. Shameka Abney, MSW, LCSWFort Washington, MD1144343229
  9. Perpetua AbongnelahGreenbelt, MD1023371812
  10. Estela Abosch, MSWBaltimore, MD1790980217

Common questions

What is Peggy Dienes, MSW's NPI number?

Peggy Dienes, MSW's National Provider Identifier (NPI) is 1336288208, issued on Feb 6, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Peggy Dienes, MSW located?

The NPPES record lists a practice address at 16220 S Frederick Ave, Gaithersburg, MD, 20877. Phone: (301) 978-9750. Providers update this record themselves, so call before visiting.

How can I verify Peggy Dienes, MSW's license?

NPPES lists Maryland license number 10763, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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 27, 2026.