AJR Am J Roentgenol
Colonic NeoplasmsParaspinal MusclesPsoas Muscles
Colm J. McMahon, BAO, BCH, MB
NPI1437391588PAC ID5294881702
- Medicare services, 2024
- 3,702
- Medicare patients, 2024
- 2,165
- Publications
- 21
- Hospital affiliations
- 4
- Industry payments
- $5,780
- Practice address
- 133 Old Road To 9 Acre Corner, West Concord, MA 01742
- Practice phone
- Call (978) 369-1400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Colm McMahon's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Colm J. McMahon is a diagnostic radiologist in Concord, Massachusetts
Colm McMahon practices at Emerson Hospital in West Concord, Massachusetts, part of Emerson Health System.
Colm McMahon's NPI, 1437391588, was assigned on April 2, 2009. Colm McMahon holds Massachusetts license 240733.
NPI and contact details
- NPI
- 1437391588NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5294881702
- NPI enumeration date
- April 2, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (978) 369-1400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Colm J. McMahon practices at Emerson Hospital in West Concord, Massachusetts
Colm McMahon's primary practice is Emerson Hospital, at 133 Old Road To 9 Acre Corner, West Concord, MA 01742 in Middlesex County. The practice phone is (978) 369-1400.
- Emerson Hospital133 Old Road To 9 Acre Corner, West Concord, MA 01742 · Middlesex CountyPhone(978) 369-1400
Source: Dmand AI Affiliation Data
Colm J. McMahon is affiliated with 5 sites of care and 5 medical groups
Colm McMahon's primary practice is Emerson Hospital in West Concord, Massachusetts, part of Emerson Health System. Colm McMahon is also affiliated with Massachusetts General Hospital. The medical group on file is North Bridge Imaging Group. Dmand AI also links Colm McMahon to 2 more hospitals, 4 medical groups and 1 therapy and rehab clinic, each named with a free account.
Massachusetts General HospitalNorth Bridge Imaging Group2 hospitalsNames with a free account4 medical groupsNames with a free account1 therapy and rehab clinicName with a free account
See all 10 affiliations for Colm McMahonSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Colm J. McMahon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Colm McMahon practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Emerson Hospital | Available with a free account |
| +4 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Colm J. McMahon is one of 1,246 diagnostic radiologists in Massachusetts
Diagnostic radiology is Colm McMahon's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Colm McMahon is licensed in Massachusetts.
Specialties and state licenses
- Diagnostic radiology, MassachusettsPrimary
Diagnostic radiologists near Colm McMahon
Counts of diagnostic radiologists with a Dmand AI profile, by place and practice. Each opens the list.
1,246diagnostic radiologists in Massachusetts11diagnostic radiologists in Concord11diagnostic radiologists at Emerson Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Colm J. McMahon billed Medicare for 3,702 services in 2024
CMS data shows 3,702 Medicare services from Colm McMahon across 47 procedure codes in 2024, for 2,165 Medicare patients. Medicare paid $123,400 for them.
Medicare services, 20243,702
Medicare patients2,165
Paid by Medicare$123,400
Procedure codes47
Colm McMahon's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 3,1132024: 3,68919%
- Tests and treatments
- 2023: 122024: 138%
Where Colm McMahon's Medicare services took place, 2024
- In an office511%
- In a facility3,65199%
Colm McMahon compared with the Massachusetts median for diagnostic radiologists, 2024
- Colm McMahon
- Massachusetts median
- Medicare services
- 3,702vs 2,24265% above
- Medicare patients
- 2,165vs 1,57138% above
Medians across 1,108 diagnostic radiologists in Massachusetts with Dmand AI profiles that report each measure.
Colm McMahon'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.
Need commercial claims for Colm McMahon?
Medicare shows one payer. Book a meeting to get commercial claims data for Colm McMahon and other diagnostic radiologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Colm J. McMahon treated 2,165 Medicare patients in 2024, average age 76
CMS counts 2,165 Medicare patients who saw Colm McMahon in 2024. The largest group is 65 to 74, with 858 patients. 73% of them have high cholesterol, and 72% have high blood pressure. 14% are also on Medicaid. Their average risk score is 1.32, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Colm McMahon's median patient age at 58, with 54% women.
Medicare patients, 20242,165
Average age76
Average risk score1.32
Also on Medicaid14%
Colm McMahon's Medicare patients by age, 2024
Colm McMahon's Medicare patients by sex, 2024
- Women1,28559%
- Men88041%
Chronic conditions among Colm McMahon's Medicare patients, 2024
- High cholesterol73%
- High blood pressure72%
- Arthritis59%
- Anxiety33%
- Mood disorders33%
- Depression29%
- Ischemic heart disease29%
- Chronic kidney disease26%
Share of Medicare patients with each condition. A patient can have several.
Colm McMahon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Colm J. McMahon takes part in Medicare
Colm McMahon accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
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Colm J. McMahon has 21 publications on record
Dmand AI links 21 papers to Colm McMahon, published from 2006 to 2018. 2017 was the busiest year, with 7. The most frequent topics are Magnetic Resonance Imaging, Tomography, X-Ray Computed and Biopsy, Large-Core Needle. Colm McMahon has published most often in AJR Am J Roentgenol. Colm McMahon's most frequent co-authors are Neil M. Rofsky, MD, Megan E. Anderson, MD and Daniel Q. Bach, MD.
Papers21
Years published2006 to 2018
Colm McMahon's papers by year, 2006 to 2018
Topics Colm McMahon writes about most
- Magnetic Resonance Imaging
- Tomography, X-Ray Computed
- Biopsy, Large-Core Needle
- Diagnostic Imaging
- Image-Guided Biopsy
- Multidetector Computed Tomography
- Analysis of Variance
- Bone Diseases
Colm McMahon's most frequent co-authors
- Neil M. Rofsky, MD2 shared papers
- Megan E. Anderson, MD1 shared paper
- Daniel Q. Bach, MD1 shared paper
Recent publications by Colm McMahon
Skeletal Radiol
Blood Component TransfusionFemoral FracturesLength of Stay
Skeletal Radiol
Biopsy, Large-Core NeedleBone NeoplasmsEcchymosis
BiopsyBiopsy, Large-Core NeedleBone and Bones
Curr Probl Diagn Radiol
Chest PainDiagnosis, DifferentialOutpatients
See who Colm McMahon researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Colm McMahon works with, so you can find a warm path to the right diagnostic radiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Colm J. McMahon received $5,780 in industry payments in 2023
CMS Open Payments shows 1 general payment to Colm McMahon from 1 drug or device company in 2023. Speaker and faculty fees make up the largest share, 100% of the total. Siemens Medical Solutions USA, Inc. paid the most, $5,780.
Companies that paid Colm McMahon 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 Colm J. McMahon'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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Colm J. McMahon
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Colm J. McMahon's NPI number?
Colm J. McMahon's NPI number is 1437391588. It was assigned on April 2, 2009, and it is active in the NPI Registry.
What does Colm J. McMahon specialize in?
Colm J. McMahon is a diagnostic radiologist in Concord, Massachusetts. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Colm J. McMahon practice?
Colm McMahon practices at 133 Old Road To 9 Acre Corner, West Concord, MA 01742. Colm McMahon's primary practice is Emerson Hospital in West Concord, Massachusetts, part of Emerson Health System. Dmand AI also links Colm McMahon to 2 hospitals, 4 medical groups and 1 therapy and rehab clinic.
What is Colm J. McMahon's office phone number?
The practice phone on file for Colm McMahon is (978) 369-1400.
What is Colm J. McMahon's medical license number?
Colm McMahon holds Massachusetts license 240733.
Which hospitals is Colm J. McMahon affiliated with?
Colm McMahon practices at Emerson Hospital in West Concord, Massachusetts. Colm McMahon is also affiliated with Massachusetts General Hospital. Dmand AI links Colm McMahon to 2 more hospitals.
What medical group is Colm J. McMahon part of?
Colm McMahon is linked to North Bridge Imaging Group. Dmand AI links Colm McMahon to 4 more medical groups.
Does Colm J. McMahon accept Medicare?
Yes. CMS data shows Colm McMahon billed Medicare for 3,702 services in 2024, and Colm McMahon accepts Medicare assignment.
How many Medicare patients does Colm J. McMahon see?
CMS counts 2,165 Medicare patients who saw Colm McMahon in 2024, with an average age of 76.
What services does Colm J. McMahon bill to Medicare?
In 2024, Colm McMahon's most billed Medicare services were diagnostic imaging (76376), diagnostic imaging (70450) and diagnostic imaging (71046).
Show 4 more questionsShow fewer questions
Has Colm J. McMahon received payments from drug or device companies?
CMS Open Payments shows $5,780 in general payments to Colm McMahon from 1 company from 2023 to 2023. The largest total came from Siemens Medical Solutions USA, Inc.
How long has Colm J. McMahon been practicing?
Colm McMahon graduated from medical school in 1998, 28 years ago.
Does Colm J. McMahon do research?
Dmand AI links 21 publications to Colm McMahon, published from 2006 to 2018.
Who does Colm J. McMahon publish with?
Colm McMahon's most frequent co-authors are Neil M. Rofsky, MD (2 shared papers), Megan E. Anderson, MD (1 shared paper) and Daniel Q. Bach, MD (1 shared paper).
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