Michael Colin Mahon, M.D.
Hospitalist Physician · Towson, MD
Michael Colin Mahon, M.D. is a hospitalist physician with a practice address in Towson, Maryland, and NPI 1447784723, issued on Apr 13, 2017. Check the license (Maryland D89542, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Michael Colin Mahon
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- D89542 MD
Self-reported in NPPES; status is on the state search - Practice location
- 7505 Osler Dr Ste 402, Towson, MD 21204
- Phone
- (410) 427-5352
- Enumerated
- Apr 13, 2017
- Record last updated
- Apr 5, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (410) 427-5302
- Medicare enrollment
- Enrolled (PECOS I20200902002117); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 7505 Osler Dr Ste 402
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Eileen Beale, NPFamily Nurse Practitioner1679977276
- Pansy Tsang, M.D.Internal Medicine Physician1326364068
Verify Michael Colin Mahon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D89542Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% more Medicare Part D claims than the average hospitalist physician in 2024
896 Medicare Part D claims for 302 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Atorvastatin Calcium71 claims
- Pantoprazole Sodium53 claims
- Furosemide50 claims
- Metoprolol Succinate43 claims
- Clopidogrel38 claims
- Eliquis33 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 89.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- University OF Maryland St Joseph Medical Group LLCTowson, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hospitalist Physician providers in Maryland
There are 397 hospitalist physician records in Maryland.
Other hospitalist physician records in Maryland
- Mohammed Abdel-Rahim, DOColumbia, MD1316437569
- Nina Victoria AbonClinton, MD1114554821
- Prakash Acharya, MDBaltimore, MD1053542639
- Eniola Adejumo, MDColumbia, MD1104110675
- Babafemi Adeniyi, MDLargo, MD1952985467
- Linda Adler, M.D.Towson, MD1942225263
- Elham Afshar, M.D.Baltimore, MD1588963763
- Sanjay Agarwal, MDBethesda, MD1346200391
- Negin Ahadi, MDBaltimore, MD1548429673
- Ashish Ahuja, MDBaltimore, MD1982067260
Common questions
What is Michael Colin Mahon, M.D.'s NPI number?
Michael Colin Mahon, M.D.'s National Provider Identifier (NPI) is 1447784723, issued on Apr 13, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Michael Colin Mahon, M.D. located?
The NPPES record lists a practice address at 7505 Osler Dr Ste 402, Towson, MD, 21204. Phone: (410) 427-5352. Providers update this record themselves, so call before visiting.
How can I verify Michael Colin Mahon, M.D.'s license?
NPPES lists Maryland license number D89542, 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.
How much does Michael Colin Mahon, M.D. prescribe under Medicare Part D?
In 2024, Michael Colin Mahon, M.D. had 896 Medicare Part D claims for 302 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
What is Michael Colin Mahon, M.D.'s MIPS final score?
The 2023 MIPS final score is 89.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.