NPPES file of Aug 9, 2026

Donald Riordan

Occupational Therapy Assistant · Baltimore, MD

Donald Riordan is an occupational therapy assistant with a practice address in Baltimore, Maryland, and NPI 1043792401, issued on Sep 2, 2018. Check the license 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, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1043792401
Name
Donald Riordan
Primary taxonomy
Occupational Therapy Assistant 224Z00000X
Practice location
3320 Benson Ave, Baltimore, MD 21227
Phone
(410) 644-7100
Enumerated
Sep 2, 2018
Record last updated
Sep 2, 2018 (not updated in 8 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 3320 Benson Ave

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

  1. Erin Clark, CF-SLPSpeech-Language Pathologist1538611884
  2. Mario Nestor Guevarra, P.T.Physical Therapist1033569082
  3. Robert Guzman, MS, CCC-SLPSpeech-Language Pathologist1801218441
  4. Lauren JensenSpeech-Language Pathologist1114409885
  5. Shaleeta Jones, M.S. CCC-SLPSpeech-Language Pathologist1508347519
  6. Nina MoeinzadehOccupational Therapy Assistant1598120800

Verify Donald Riordan 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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Occupational Therapy Assistant providers in Maryland

There are 653 occupational therapy assistant records in Maryland. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other occupational therapy assistant records in Maryland

  1. Lydia AbadHagerstown, MD1518434836
  2. Jessamyn AbelMiddle River, MD1134556681
  3. Victoria Abraham, COTA/LBaltimore, MD1861199218
  4. Sheila AcheampongRiverdale, MD1770035768
  5. Heather Adams, OTASolomons, MD1205907144
  6. Joan Adams, COTADenton, MD1255457040
  7. Bipana AdhikariBaltimore, MD1366149981
  8. Scarlett AdkinsGambrills, MD1003320862
  9. Rita Agyei-Yeboah, COTASalisbury, MD1659189819
  10. Haroon AlamLaurel, MD1396121216

Common questions

What is Donald Riordan's NPI number?

Donald Riordan's National Provider Identifier (NPI) is 1043792401, issued on Sep 2, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Donald Riordan located?

The NPPES record lists a practice address at 3320 Benson Ave, Baltimore, MD, 21227. Phone: (410) 644-7100. Providers update this record themselves, so call before visiting.

How can I verify Donald Riordan's license?

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