Dr. Michael J. Mason, MD
- Medicare services, 2024
- 243
- Medicare patients, 2024
- 229
- Part D claims, 2024
- 299
- MIPS score, 2024
- 98
- Hospital affiliations
- 4
- Practice address
- 123 Medical Center Drive, Brunswick, ME 04011
- Practice phone
- Call (207) 729-0181
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mason's professional email, personal email and mobile number
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Dr. Michael J. Mason is a general surgeon in Brunswick, Maine
Dr. Mason practices at MaineHealth Mid Coast Hospital in Brunswick, Maine, part of MaineHealth.
Dr. Mason's NPI, 1598793317, was assigned on June 29, 2006. Dr. Mason graduated from Emory University School of Medicine in 1993. Dr. Mason holds Maine license 014238.
- NPI
- 1598793317NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4880639038
- NPI enumeration date
- June 29, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (207) 729-0181
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael J. Mason practices at MaineHealth Mid Coast Hospital in Brunswick, Maine
Dr. Mason's primary practice is MaineHealth Mid Coast Hospital, at 123 Medical Center Drive, Brunswick, ME 04011 in Cumberland County. The practice phone is (207) 729-0181.
- MaineHealth Mid Coast Hospital123 Medical Center Drive, Brunswick, ME 04011 · Cumberland CountyPhone(207) 729-0181
Source: Dmand AI Affiliation Data
Dr. Michael J. Mason is affiliated with 7 sites of care and 5 medical groups
Dr. Mason's primary practice is MaineHealth Mid Coast Hospital in Brunswick, Maine, part of MaineHealth. Dr. Mason is also affiliated with MaineHealth Maine Medical Center. The medical group on file is MaineHealth Primary Care - Family Medicine - Portland. Dmand AI also links Dr. Mason to 2 more hospitals, 4 medical groups, 2 group practices and clinics and 1 clinical lab, 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 J. Mason's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mason practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MaineHealth Mid Coast Hospital | Available with a free account |
| +6 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael J. Mason is one of 191 general surgeons in Maine
Surgery is Dr. Mason's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Mason is licensed in Maine.
Specialties and state licenses
- Surgery, MainePrimary
General surgeons near Dr. Mason
Counts of general surgeons 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 J. Mason billed Medicare for 243 services in 2024
CMS data shows 243 Medicare services from Dr. Mason across 9 procedure codes in 2024, for 229 Medicare patients. Medicare paid $25,923 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mason's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2132024: 2006%
- Surgery
- 2023: 132024: 30131%
- Other services
- 2023: 02024: 13
- Tests and treatments
- 2023: 212024: 0100%
Dr. Mason compared with the Maine median for general surgeons, 2024
- Dr. Mason
- Maine median
- Medicare services
- 243vs 783.1 times
- Medicare patients
- 229vs 892.6 times
- Part D claims
- 230vs 278.5 times
Medians across 191 general surgeons in Maine with Dmand AI profiles that report each measure.
Dr. Mason'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 J. Mason treated 229 Medicare patients in 2024, average age 73
CMS counts 229 Medicare patients who saw Dr. Mason in 2024. The largest group is 75 to 84, with 78 patients. 71% of them have high blood pressure, and 66% have high cholesterol. 23% are also on Medicaid. Their average risk score is 1.49, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mason's median patient age at 66, with 41% women.
Dr. Mason's Medicare patients by age, 2024
Dr. Mason's Medicare patients by sex, 2024
- Women10747%
- Men12253%
Chronic conditions among Dr. Mason's Medicare patients, 2024
- High blood pressure71%
- High cholesterol66%
- Arthritis39%
- Ischemic heart disease32%
- Mood disorders32%
- Atrial fibrillation28%
- Chronic kidney disease28%
- Depression28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mason's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women41%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael J. Mason wrote 299 Medicare Part D claims in 2024
In 2024, Dr. Mason wrote 299 Medicare Part D claims for 156 patients. 98% of them were for generic drugs. CMS names the drug for 230 of them, across 7 drugs with 11 or more claims each, at $1,043 in total drug cost. In 2023, CMS named 218 claims across 8 drugs.
Dr. Mason's Part D claims by kind of drug, 2024
- Generic293 claims98%
- Brand-name and other6 claims2%
Dr. Mason'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. Mason's Part D claims, 2024
- Opioids39%116 of 299 claims
- Antibiotics29%87 of 299 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: 2182024: 2306%
Drugs named by CMS: 7 in 2024, 8 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 J. Mason scored 98 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Dr. Mason for performance year 2024, reported through an alternative payment model (APM). Dr. Mason accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 12 procedures of hernia repair - groin (open) by Dr. Mason, more than 91% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Mason's MIPS scores, performance year 2024
- 98of 100Final score
- 83.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Mason ranks in Medicare procedure volume
- Colonoscopy
- 51st percentile26 procedures
- Removal of tissue
- 70th percentile21 procedures
- Hernia repair (minimally invasive)
- 81st percentile15 procedures
- Hernia repair - groin (open)
- 91st percentile12 procedures
- Melanoma (skin cancer) excision
- 66th percentile12 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Michael J. Mason received $1,751 in industry payments from 2016 to 2019
CMS Open Payments shows 8 general payments to Dr. Mason from 3 drug and device companies from 2016 to 2019. Travel and lodging make up the largest share, 82% of the total. MAQUET Cardiovascular U.S. Sales, L.L.C. paid the most, $1,596.
General payments to Dr. Mason by program year, 2016 to 2019
General payments to Dr. Mason by kind, 2016 to 2019
- Travel and lodging$1,43982%
- Food and beverage$31218%
Companies that paid Dr. Mason the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael J. Mason graduated from Emory University School of Medicine
Dr. Mason graduated from Emory University School of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael J. Mason'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 J. Mason
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 J. Mason's NPI number?
Dr. Michael J. Mason's NPI number is 1598793317. It was assigned on June 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael J. Mason?
Dr. Michael J. Mason is a general surgeon in Brunswick, Maine. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Michael J. Mason practice?
Dr. Mason practices at 123 Medical Center Drive, Brunswick, ME 04011. Dr. Mason's primary practice is MaineHealth Mid Coast Hospital in Brunswick, Maine, part of MaineHealth. Dmand AI also links Dr. Mason to 2 hospitals, 4 medical groups, 2 group practices and clinics and 1 clinical lab.
What is Dr. Michael J. Mason's office phone number?
The practice phone on file for Dr. Mason is (207) 729-0181.
What is Dr. Michael J. Mason's medical license number?
Dr. Mason holds Maine license 014238.
Which hospitals is Dr. Michael J. Mason affiliated with?
Dr. Mason practices at MaineHealth Mid Coast Hospital in Brunswick, Maine. Dr. Mason is also affiliated with MaineHealth Maine Medical Center. Dmand AI links Dr. Mason to 2 more hospitals.
What medical group is Dr. Michael J. Mason part of?
Dr. Mason is linked to MaineHealth Primary Care - Family Medicine - Portland. Dmand AI links Dr. Mason to 4 more medical groups.
Does Dr. Michael J. Mason accept Medicare?
Yes. CMS data shows Dr. Mason billed Medicare for 243 services in 2024, and Dr. Mason accepts Medicare assignment.
What is Dr. Michael J. Mason's MIPS score?
Dr. Mason's MIPS final score for performance year 2024 is 98 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Michael J. Mason see?
CMS counts 229 Medicare patients who saw Dr. Mason in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. Michael J. Mason bill to Medicare?
In 2024, Dr. Mason's most billed Medicare services were office visit, new patient (99204), office visit, established patient (99213) and hospital inpatient care (99222).
Where did Dr. Michael J. Mason go to medical school?
Dr. Mason graduated from Emory University School of Medicine in 1993.
What drugs does Dr. Michael J. Mason prescribe most?
In 2024 Medicare Part D data, Dr. Mason's most prescribed drugs by claims were Oxycodone HCl, Ondansetron HCl and Amoxicillin-Clavulanate Potass.
Has Dr. Michael J. Mason received payments from drug or device companies?
CMS Open Payments shows $1,751 in general payments to Dr. Mason from 3 companies from 2016 to 2019. The largest total came from MAQUET Cardiovascular U.S. Sales, L.L.C.
How long has Dr. Michael J. Mason been practicing?
Dr. Mason graduated from medical school in 1993, 33 years ago.
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