Timothy F. O'Donnell, P.A.
Medical Physician Assistant · Towson, MD
Timothy F. O'Donnell, P.A. is a medical physician assistant with a practice address in Towson, Maryland, and NPI 1871528919, issued on Jul 11, 2006. Check the license (Maryland C0000513, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Timothy F. O'Donnell
- Credential
- P.A.
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License number
- C0000513 MD
Self-reported in NPPES; status is on the state search - Practice location
- 515 Fairmount Ave Ste 500, Towson, MD 21286
- Phone
- (410) 494-1662
- Enumerated
- Jul 11, 2006
- Record last updated
- Jul 21, 2022
- Fax
- (410) 494-1718
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 871 in Maryland → Look up another NPI →
Also registered at 515 Fairmount Ave Ste 500
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Timothy F. O'Donnell in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license C0000513Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average medical physician assistant in 2024
282 Medicare Part D claims for 132 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Atorvastatin Calcium41 claims
- Metoprolol Succinate27 claims
- Metoprolol Tartrate26 claims
- Eliquis23 claims
- Amlodipine Besylate15 claims
- Losartan Potassium14 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: $1,138.71
51 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Timothy F. O'Donnell among 871 medical physician assistant records in Maryland
Timothy F. O'Donnell, P.A. 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 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 78% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 54% of these records are
- Record last updated2022 · 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.
All 871 in Maryland → Every provider in Towson → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Monica Bryant, PA CBaltimore, MD 212871013968643
- Nikki Chokshi, PABaltimore, MD 212871598889875
- Pamela Donohue, SCD, PA-CBaltimore, MD 212871003014127
- Mary Drymala, PACBaltimore, MD 212871861441875
- Edward Fuchs, PA-CBaltimore, MD 212871336287481
- Natalie Hirsch, PA-CBaltimore, MD 212871104855360
- Teresa Krosnick, PA-CBaltimore, MD 212871669420170
- Jo Leslie, PA-CBaltimore, MD 212871972643161
Common questions
What is Timothy F. O'Donnell, P.A.'s NPI number?
Timothy F. O'Donnell, P.A.'s National Provider Identifier (NPI) is 1871528919, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Timothy F. O'Donnell, P.A. located?
The NPPES record lists a practice address at 515 Fairmount Ave Ste 500, Towson, MD, 21286. Phone: (410) 494-1662. Providers update this record themselves, so call before visiting.
How can I verify Timothy F. O'Donnell, P.A.'s license?
NPPES lists Maryland license number C0000513, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Timothy F. O'Donnell, P.A. prescribe under Medicare Part D?
In 2024, Timothy F. O'Donnell, P.A. had 282 Medicare Part D claims for 132 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.