Dr. Joseph Dominic Mack, MD
- Medicare services, 2024
- 81
- Medicare patients, 2024
- 89
- Part D claims, 2024
- 86
- Publications
- 2
- MIPS score, 2024
- 98
- Practice address
- 22 Bramhall St, Portland, ME 04102
- Practice phone
- Call (207) 662-0111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mack's professional email, personal email and mobile number
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Dr. Joseph Dominic Mack is a colorectal surgeon in Portland, Maine
Dr. Mack practices at MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth.
Dr. Mack's NPI, 1114380615, was assigned on April 1, 2016. Dr. Mack graduated from Tufts University School of Medicine in 2016. Dr. Mack holds Maine license MD25668.
- NPI
- 1114380615NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0244525905
- NPI enumeration date
- April 1, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (207) 662-0111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joseph Dominic Mack practices at MaineHealth Maine Medical Center in Portland, Maine
Dr. Mack's primary practice is MaineHealth Maine Medical Center, at 22 Bramhall St, Portland, ME 04102 in Cumberland County. The practice phone is (207) 662-0111.
- MaineHealth Maine Medical Center22 Bramhall St, Portland, ME 04102 · Cumberland CountyPhone(207) 662-0111
Source: Dmand AI Affiliation Data
Dr. Joseph Dominic Mack is affiliated with 3 sites of care and 2 medical groups
Dr. Mack's primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth. Dr. Mack is also affiliated with MaineHealth Pen Bay Hospital. The medical group on file is MaineHealth Primary Care - Family Medicine - Portland. Dmand AI also links Dr. Mack to 1 more hospital and 1 medical group, 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. Joseph Dominic Mack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mack practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MaineHealth Maine Medical Center | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joseph Dominic Mack is one of 10 colorectal surgeons in Maine
Colon and rectal surgery is Dr. Mack's primary specialty in the NPI Registry, under taxonomy code 208C00000X. Dr. Mack is licensed in Maine.
Specialties and state licenses
- Colon and rectal surgery, MainePrimary
Colorectal surgeons near Dr. Mack
Counts of colorectal 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. Joseph Dominic Mack billed Medicare for 81 services in 2024
CMS data shows 81 Medicare services from Dr. Mack across 5 procedure codes in 2024, for 89 Medicare patients. Medicare paid $6,877 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mack's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 322024: 6397%
- Surgery
- 2023: 112024: 1864%
Dr. Mack compared with the Maine median for colorectal surgeons, 2024
- Dr. Mack
- Maine median
- Medicare services
- 81vs 9515% below
- Part D claims
- 77vs 8610% below
Medians across 10 colorectal surgeons in Maine with Dmand AI profiles that report each measure.
Dr. Mack'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. Joseph Dominic Mack treated 89 Medicare patients in 2024, average age 70
CMS counts 89 Medicare patients who saw Dr. Mack in 2024. The largest group is 65 to 74, with 40 patients. 75% of them have high blood pressure, and 64% have high cholesterol. 26% are also on Medicaid. Their average risk score is 1.88, 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. Mack's median patient age at 67, with 45% women.
Dr. Mack's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Mack's Medicare patients by sex, 2024
- Women3539%
- Men5461%
Chronic conditions among Dr. Mack's Medicare patients, 2024
- High blood pressure75%
- High cholesterol64%
- Cancer44%
- Mood disorders44%
- Arthritis39%
- Depression37%
- Anxiety33%
- Ischemic heart disease29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women45%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joseph Dominic Mack wrote 86 Medicare Part D claims in 2024
In 2024, Dr. Mack wrote 86 Medicare Part D claims for 39 patients. 98% of them were for generic drugs. CMS names the drug for 77 of them, across 3 drugs with 11 or more claims each, at $753 in total drug cost. In 2023, CMS named 72 claims across 2 drugs.
Dr. Mack's Part D claims by kind of drug, 2024
- Generic84 claims98%
- Brand-name and other2 claims2%
Dr. Mack'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. Mack's Part D claims, 2024
- Antibiotics91%78 of 86 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: 722024: 777%
Drugs named by CMS: 3 in 2024, 2 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. Joseph Dominic Mack 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. Mack for performance year 2024, reported through an alternative payment model (APM). Dr. Mack accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Mack as offering telehealth. CMS counts 34 procedures of colonoscopy by Dr. Mack, more than 56% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Mack'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. Mack ranks in Medicare procedure volume
- Colonoscopy
- 56th percentile34 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)
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. Joseph Dominic Mack has 2 publications on record
Dmand AI links 2 papers to Dr. Mack, published from 2020 to 2022. Dr. Mack's most frequent co-authors are Damien W. Carter, MD, Timothy Louis Fitzgerald, MD and Lee D. Hallagan, MD.
Dr. Mack's most frequent co-authors
- Damien W. Carter, MD1 shared paper
- Timothy Louis Fitzgerald, MD1 shared paper
- Lee D. Hallagan, MD1 shared paper
Recent publications by Dr. Mack
J Surg Educ
See who Dr. Mack researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Mack works with, so you can find a warm path to the right colorectal surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Joseph Dominic Mack received $8,247 in industry payments from 2022 to 2025
CMS Open Payments shows 20 general payments to Dr. Mack from 1 drug or device company from 2022 to 2025. Education make up the largest share, 73% of the total. Intuitive Surgical, Inc. paid the most, $8,247.
General payments to Dr. Mack by program year, 2022 to 2025
General payments to Dr. Mack by kind, 2022 to 2025
- Education$6,00073%
- Travel and lodging$1,46618%
- Food and beverage$7819%
Companies that paid Dr. Mack the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Joseph Dominic Mack graduated from Tufts University School of Medicine
Dr. Mack graduated from Tufts University School of Medicine in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Joseph Dominic Mack'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) |
| 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) |
| 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. Joseph Dominic Mack
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. Joseph Dominic Mack's NPI number?
Dr. Joseph Dominic Mack's NPI number is 1114380615. It was assigned on April 1, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Joseph Dominic Mack?
Dr. Joseph Dominic Mack is a colorectal surgeon in Portland, Maine. The primary specialty in the NPI Registry is Colon & Rectal Surgery Physician (taxonomy code 208C00000X).
Where does Dr. Joseph Dominic Mack practice?
Dr. Mack practices at 22 Bramhall St, Portland, ME 04102. Dr. Mack's primary practice is MaineHealth Maine Medical Center in Portland, Maine, part of MaineHealth. Dmand AI also links Dr. Mack to 1 hospital and 1 medical group.
What is Dr. Joseph Dominic Mack's office phone number?
The practice phone on file for Dr. Mack is (207) 662-0111.
What is Dr. Joseph Dominic Mack's medical license number?
Dr. Mack holds Maine license MD25668.
Which hospitals is Dr. Joseph Dominic Mack affiliated with?
Dr. Mack practices at MaineHealth Maine Medical Center in Portland, Maine. Dr. Mack is also affiliated with MaineHealth Pen Bay Hospital. Dmand AI links Dr. Mack to 1 more hospital.
What medical group is Dr. Joseph Dominic Mack part of?
Dr. Mack is linked to MaineHealth Primary Care - Family Medicine - Portland. Dmand AI links Dr. Mack to 1 more medical group.
Does Dr. Joseph Dominic Mack accept Medicare?
Yes. CMS data shows Dr. Mack billed Medicare for 81 services in 2024, and Dr. Mack accepts Medicare assignment.
Does Dr. Joseph Dominic Mack offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Mack as offering telehealth services.
What is Dr. Joseph Dominic Mack's MIPS score?
Dr. Mack's MIPS final score for performance year 2024 is 98 out of 100, reported through an alternative payment model (APM).
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Joseph Dominic Mack see?
CMS counts 89 Medicare patients who saw Dr. Mack in 2024, with an average age of 70.
What services does Dr. Joseph Dominic Mack bill to Medicare?
In 2024, Dr. Mack's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (46600) and office visit, new patient (99205).
Where did Dr. Joseph Dominic Mack go to medical school?
Dr. Mack graduated from Tufts University School of Medicine in 2016.
What drugs does Dr. Joseph Dominic Mack prescribe most?
In 2024 Medicare Part D data, Dr. Mack's most prescribed drugs by claims were Neomycin Sulfate, Metronidazole and Amoxicillin-Clavulanate Potass.
Has Dr. Joseph Dominic Mack received payments from drug or device companies?
CMS Open Payments shows $8,247 in general payments to Dr. Mack from 1 company from 2022 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Joseph Dominic Mack been practicing?
Dr. Mack graduated from medical school in 2016, 10 years ago.
Does Dr. Joseph Dominic Mack do research?
Dmand AI links 2 publications to Dr. Mack, published from 2020 to 2022.
Who does Dr. Joseph Dominic Mack publish with?
Dr. Mack's most frequent co-authors are Damien W. Carter, MD (1 shared paper), Timothy Louis Fitzgerald, MD (1 shared paper) and Lee D. Hallagan, MD (1 shared paper).
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