Joseph Dominic Mack, M.D.
Colon & Rectal Surgery Physician · Portland, ME
Joseph Dominic Mack, M.D. is a colon & rectal surgery physician with a practice address in Portland, Maine, and NPI 1114380615, issued on Apr 1, 2016. Check the license (Maine MD25668, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Joseph Dominic Mack
- Credential
- M.D.
- Primary taxonomy
- Colon & Rectal Surgery Physician 208C00000X
- License number
- MD25668 ME
Self-reported in NPPES; status is on the state search - Practice location
- 22 Bramhall St, Portland, ME 04102
- Phone
- (207) 662-0111
- Enumerated
- Apr 1, 2016
- Record last updated
- May 9, 2022
- Medicare enrollment
- Enrolled (PECOS I20220621000934); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 22 Bramhall St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Abbatiello, NP-CFamily Nurse Practitioner1871811737
- Ruslan Abdukalikov, DOAnesthesiology Physician1831694793
- Tod Abrahams, M.D.Diagnostic Radiology Physician1538231642
- Joshua Abrams, PA-CSurgical Physician Assistant1932832128
- Christopher Abruzzese, D.OAnesthesiology Physician1558789305
- Haley Acker, PA-CPhysician Assistant1972167377
Verify Joseph Dominic Mack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license MD25668Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average colon & rectal surgery physician in 2024
86 Medicare Part D claims for 39 beneficiaries, against an average of 192 among the 1,836 providers of this specialty who prescribed in Part D.
Most prescribed
- Neomycin Sulfate33 claims
- Metronidazole32 claims
- Amoxicillin-Clavulanate Potass12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 98.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- MainehealthPortland, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Colon & Rectal Surgery Physician providers in Maine
There are 9 colon & rectal surgery physician records in Maine.
Other colon & rectal surgery physician records in Maine
- Marie Audett, MDPortland, ME1891920823
- Brian Gillis, DOOakland, ME1386711877
- Jerald Hurdle, D.O.Waterville, ME1184648784
- Kathreen Lee, MDPortland, ME1639304132
- Cathel Macleod, MDPortland, ME1851479034
- Reza Rahbar-Semnani, MDRockport, ME1952540247
- Melville RobertsPortland, ME1235217456
- Richard Stockwell, DOWestbrook, ME1275570541
Common questions
What is Joseph Dominic Mack, M.D.'s NPI number?
Joseph Dominic Mack, M.D.'s National Provider Identifier (NPI) is 1114380615, issued on Apr 1, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Dominic Mack, M.D. located?
The NPPES record lists a practice address at 22 Bramhall St, Portland, ME, 04102. Phone: (207) 662-0111. Providers update this record themselves, so call before visiting.
How can I verify Joseph Dominic Mack, M.D.'s license?
NPPES lists Maine license number MD25668, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joseph Dominic Mack, M.D. prescribe under Medicare Part D?
In 2024, Joseph Dominic Mack, M.D. had 86 Medicare Part D claims for 39 beneficiaries; the average among colon & rectal surgery physician prescribers was 192. Part D covers Medicare prescriptions only.
What is Joseph Dominic Mack, M.D.'s MIPS final score?
The 2023 MIPS final score is 98.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.