Timothy Mark McMahon
Diagnostic Radiology Physician · Baltimore, MD
Timothy Mark McMahon is a diagnostic radiology physician with a practice address in Baltimore, Maryland, and NPI 1467913442, issued on Mar 30, 2019. Check the license (Maryland D0100466, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Timothy Mark McMahon
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- D0100466 MD
Self-reported in NPPES; status is on the state search - Practice location
- 1800 Orleans Street, Baltimore, MD 21264
- Phone
- (410) 955-5000
- Enumerated
- Mar 30, 2019
- Record last updated
- Jul 19, 2024
- Medicare enrollment
- Enrolled (PECOS I20240801002881); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 877 in Maryland → Look up another NPI →
Also registered at 1800 Orleans Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Oluwadamilola Nurude AdisaStudent in an Organized Health Care Education/Training Program1508538356
- Oluwanifesimi Akinwamide, MDAnesthesiology Physician1902466410
- Audrey Ang, MDInternal Medicine Physician1447839048
- Mohanad Baldawi, MDAnesthesiology Physician1053931709
- Brenda Banwell, MDPediatrics Physician1013275619
- Alish Basnet, CRNACertified Registered Nurse Anesthetist1477116945
Verify Timothy Mark McMahon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0100466Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- Johns Hopkins UniversityLutherville, MD
- Johns Hopkins UniversityMiddle River, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy Mark McMahon among 877 diagnostic radiology physician records in Maryland
Timothy Mark McMahon is one of 877 diagnostic radiology physician records with a practice address in Maryland. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 91% of them.
- NPI issued2019 · 91% of these records are older, 5% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2019 · median 2003 among the 604 with a school on file
- Record last updated2024 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
493 diagnostic radiology physician records list a practice address in Baltimore
They are 493 of the 35,183 NPPES records with a practice address in Baltimore, and 877 diagnostic radiology physician records in Maryland.
All 877 in Maryland → Every provider in Baltimore → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Agnieszka Boron, MDBaltimore, MD 212641477015956
- Jazmyne HefflefingerBaltimore, MD 212641851852115
- Andrew Kilgore, MDBaltimore, MD 212641417517608
- Jahinover Mazo, MDBaltimore, MD 212641427554872
- Anna Nidecker, M.D.Baltimore, MD 212641033388491
- Antoni Parellada, M.D.Baltimore, MD 212641730159898
- Marc Paul, MDBaltimore, MD 212641750375390
- Peter Salazar, MDBaltimore, MD 212641518992148
Common questions
What is Timothy Mark McMahon's NPI number?
Timothy Mark McMahon's National Provider Identifier (NPI) is 1467913442, issued on Mar 30, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Mark McMahon located?
The NPPES record lists a practice address at 1800 Orleans Street, Baltimore, MD, 21264. Phone: (410) 955-5000. Providers update this record themselves, so call before visiting.
How can I verify Timothy Mark McMahon's license?
NPPES lists Maryland license number D0100466, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.