Dr. Michael Colin Mahon, MD
- Medicare services, 2024
- 1,517
- Medicare patients, 2024
- 600
- Part D claims, 2024
- 896
- MIPS score, 2024
- 87
- Hospital affiliations
- 3
- Practice address
- 7601 Osler Drive, Towson, MD 21204
- Practice phone
- Call (410) 337-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Mahon's professional email, personal email and mobile number
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Dr. Michael Colin Mahon is a hospitalist in Towson, Maryland
Dr. Mahon practices at University of Maryland St. Joseph Medical Center in Towson, Maryland, part of University of Maryland Medical System.
Dr. Mahon's NPI, 1447784723, was assigned on April 13, 2017. Dr. Mahon holds Maryland license D89542.
- NPI
- 1447784723NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9335566512
- NPI enumeration date
- April 13, 2017
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (410) 337-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Colin Mahon practices at University of Maryland St. Joseph Medical Center in Towson, Maryland
Dr. Mahon's primary practice is University of Maryland St. Joseph Medical Center, at 7601 Osler Drive, Towson, MD 21204 in Baltimore County. The practice phone is (410) 337-1000.
- University of Maryland St. Joseph Medical Center7601 Osler Drive, Towson, MD 21204 · Baltimore CountyPhone(410) 337-1000
Source: Dmand AI Affiliation Data
Dr. Michael Colin Mahon is affiliated with 4 sites of care and 1 medical group
Dr. Mahon's primary practice is University of Maryland St. Joseph Medical Center in Towson, Maryland, part of University of Maryland Medical System. Dr. Mahon is also affiliated with University of Maryland Medical Center. The medical group on file is UM St. Joseph Medical Group. Dmand AI also links Dr. Mahon to 1 more hospital and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael Colin Mahon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mahon practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University of Maryland St. Joseph Medical Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael Colin Mahon is one of 415 hospitalists in Maryland
Hospitalist is Dr. Mahon's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Mahon is licensed in Maryland.
Specialties and state licenses
- Hospitalist, MarylandPrimary
Hospitalists near Dr. Mahon
Counts of hospitalists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Michael Colin Mahon billed Medicare for 1,517 services in 2024
CMS data shows 1,517 Medicare services from Dr. Mahon across 5 procedure codes in 2024, for 600 Medicare patients. Medicare paid $135,600 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mahon's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,4152024: 1,5177%
Dr. Mahon compared with the Maryland median for hospitalists, 2024
- Dr. Mahon
- Maryland median
- Medicare services
- 1,517vs 6502.3 times
- Medicare patients
- 600vs 2912.1 times
- Part D claims
- 541vs 569.7 times
Medians across 388 hospitalists in Maryland with Dmand AI profiles that report each measure.
Dr. Mahon's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Colin Mahon treated 600 Medicare patients in 2024, average age 77
CMS counts 600 Medicare patients who saw Dr. Mahon in 2024. The largest group is 75 to 84, with 250 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 1.91, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Mahon's median patient age at 77, with 54% women.
Dr. Mahon's Medicare patients by age, 2024
Dr. Mahon's Medicare patients by sex, 2024
- Women33456%
- Men26644%
Chronic conditions among Dr. Mahon's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis63%
- Ischemic heart disease59%
- Atrial fibrillation46%
- Chronic kidney disease44%
- Heart failure44%
- Anxiety43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mahon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael Colin Mahon wrote 896 Medicare Part D claims in 2024
In 2024, Dr. Mahon wrote 896 Medicare Part D claims for 302 patients. 88% of them were for generic drugs. CMS names the drug for 541 of them, across 19 drugs with 11 or more claims each, at $29,816 in total drug cost. In 2023, CMS named 707 claims across 24 drugs.
Dr. Mahon's Part D claims by kind of drug, 2024
- Generic786 claims88%
- Brand-name and other110 claims12%
Dr. Mahon's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Mahon's Part D claims, 2024
- Opioids3%23 of 896 claims
- Antibiotics10%86 of 896 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 7072024: 54123%
Drugs named by CMS: 19 in 2024, 24 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Michael Colin Mahon scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Mahon for performance year 2024, reported as part of a group. Dr. Mahon accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Mahon's MIPS scores, performance year 2024
- 87of 100Final score
- 79.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 78of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Michael Colin Mahon received $18 in industry payments in 2023
CMS Open Payments shows 1 general payment to Dr. Mahon from 1 drug or device company in 2023. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $18.
Companies that paid Dr. Mahon the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Michael Colin Mahon's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Michael Colin Mahon
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Michael Colin Mahon's NPI number?
Dr. Michael Colin Mahon's NPI number is 1447784723. It was assigned on April 13, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Colin Mahon?
Dr. Michael Colin Mahon is a hospitalist in Towson, Maryland. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Michael Colin Mahon practice?
Dr. Mahon practices at 7601 Osler Drive, Towson, MD 21204. Dr. Mahon's primary practice is University of Maryland St. Joseph Medical Center in Towson, Maryland, part of University of Maryland Medical System. Dmand AI also links Dr. Mahon to 1 hospital and 1 group practice or clinic.
What is Dr. Michael Colin Mahon's office phone number?
The practice phone on file for Dr. Mahon is (410) 337-1000.
What is Dr. Michael Colin Mahon's medical license number?
Dr. Mahon holds Maryland license D89542.
Which hospitals is Dr. Michael Colin Mahon affiliated with?
Dr. Mahon practices at University of Maryland St. Joseph Medical Center in Towson, Maryland. Dr. Mahon is also affiliated with University of Maryland Medical Center. Dmand AI links Dr. Mahon to 1 more hospital.
What medical group is Dr. Michael Colin Mahon part of?
Dr. Mahon is linked to UM St. Joseph Medical Group.
Does Dr. Michael Colin Mahon accept Medicare?
Yes. CMS data shows Dr. Mahon billed Medicare for 1,517 services in 2024, and Dr. Mahon accepts Medicare assignment.
What is Dr. Michael Colin Mahon's MIPS score?
Dr. Mahon's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
How many Medicare patients does Dr. Michael Colin Mahon see?
CMS counts 600 Medicare patients who saw Dr. Mahon in 2024, with an average age of 77.
Show 4 more questionsShow fewer questions
What services does Dr. Michael Colin Mahon bill to Medicare?
In 2024, Dr. Mahon's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99239).
What drugs does Dr. Michael Colin Mahon prescribe most?
In 2024 Medicare Part D data, Dr. Mahon's most prescribed drugs by claims were Atorvastatin Calcium, Pantoprazole Sodium and Furosemide.
Has Dr. Michael Colin Mahon received payments from drug or device companies?
CMS Open Payments shows $18 in general payments to Dr. Mahon from 1 company from 2023 to 2023. The largest total came from Boston Scientific Corporation.
How long has Dr. Michael Colin Mahon been practicing?
Dr. Mahon graduated from medical school in 2017, 9 years ago.
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