William Paul Vaughn, COTA
Occupational Therapy Assistant · Olney, MD
William Paul Vaughn, COTA is an occupational therapy assistant with a practice address in Olney, Maryland, and NPI 1124211685, issued on Aug 19, 2007. Check the license (Maryland A00821, 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.
- Name
- William Paul Vaughn
- Credential
- COTA
- Primary taxonomy
- Occupational Therapy Assistant 224Z00000X
- License numbers
- A00821 MD
OP003435L PA
Self-reported in NPPES; status is on the state search - Practice location
- 3470 Olney Laytonsville RD, Olney, MD 20832
- Phone
- (412) 527-9206
- Enumerated
- Aug 19, 2007
- Record last updated
- Aug 19, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest occupational therapy assistant records → All 653 in Maryland → Look up another NPI →
Also registered at 3470 Olney Laytonsville RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rafael Nollie, CSA/LPNLicensed Practical Nurse1447459854
Verify William Paul Vaughn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license A00821Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Paul Vaughn among 653 occupational therapy assistant records in Maryland
William Paul Vaughn, COTA is one of 653 occupational therapy assistant records with a practice address in Maryland. 0% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 2% of them.
- NPI issued2007 · 2% of these records are older, 89% newer
- In a Medicare fileNo · 0% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 75% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 224Z00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
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.
All 653 in Maryland → Every provider in Olney → Occupational Therapy Assistant nationwide →
The 8 occupational therapy assistant records with the nearest ZIP codes
- Andre DomingosOlney, MD 208321356798128
- Karen Gallagher, O.T.R./L/,C.H.T.Olney, MD 208321417045824
- Cody Worthington, C.O.T.A.Dickerson, MD 208421912293259
- Kristie Annen-Kirby, COTA/LRockville, MD 208501760858849
- Abbey BonkRockville, MD 208501184289662
- Robert Chappetta, COTABethesda, MD 208141053889162
- Travis Combs, COTA/L, B.S.Bethesda, MD 208141689222788
- Luis Diaz PerezBethesda, MD 208141861220170
Common questions
What is William Paul Vaughn, COTA's NPI number?
William Paul Vaughn, COTA's National Provider Identifier (NPI) is 1124211685, issued on Aug 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Paul Vaughn, COTA located?
The NPPES record lists a practice address at 3470 Olney Laytonsville RD, Olney, MD, 20832. Phone: (412) 527-9206. Providers update this record themselves, so call before visiting.
How can I verify William Paul Vaughn, COTA's license?
NPPES lists Maryland license number A00821, 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), 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.