Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Michael Colin Mahon, MD

Individual provider Internal Medicine Physician · NPI 1447784723

Michael Colin Mahon, MD is an Internal Medicine in Towson, Maryland. Qualified in 2017, 9 years ago. Practices with University of Maryland St Joseph Medical Group LLC, a 288-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
9
Licensed in
MD
In the registry since
2017
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

7505 Osler Dr Ste 402
Towson, MD 21204-7739
Phone: (410) 427-5352
Fax: (410) 427-5302
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence D89542 (MD)
Internal Medicine Physician Taxonomy 207R00000X · Licence D89542 (MD)

Record details

NPI number1447784723
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 13, 2017
Last updated in NPPESApril 5, 2021
Certification dateApril 5, 2021
Mailing address7505 Osler Dr Ste 402, Towson, MD 21204-7739

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Also practisesHOSPITALIST
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice University Of Maryland St Joseph Medical Group Llc — 288 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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