Joseph Dominic Mack, M.D.
NPI 1114380615ActiveIndividual· Colon & Rectal Surgery· Portland, ME
Colon & Rectal Surgery (M.D.) in Portland, Maine, trained at Tufts University School of Medicine (class of 2016). 89 Medicare patients in 2024, $43,847 paid; nearly all of their 86 Part D prescriptions were generic (98%). Intuitive Surgical, Inc. reported $6,109 in payments in 2025, mostly education.
Overview
| NPI | 1114380615 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 1, 2016 |
| Last updated in NPPES | May 9, 2022 |
| Certified by provider | May 9, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Colon & Rectal Surgery Primary | 208C00000X | MD25668 | ME |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - General Surgery (ME) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 89 |
|---|---|
| Services billed | 188 across 61 procedure codes |
| Paid by Medicare | $43,847 |
Part D prescriptions in 2024
| Prescriptions (claims) | 86 · 86 30-day fills |
|---|---|
| Patients | 39 |
| Total drug cost | $1,109 |
| Generic share | 98% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | General Surgery |
| Telehealth | Offers telehealth |
Medical group
- MainehealthPortland, ME · 2,633 clinicians
Hospital affiliations
- LincolnhealthDamariscotta, ME
- Mainehealth Maine Medical CenterPortland, ME
- Mainehealth Pen Bay HospitalRockport, ME
Industry payments (Open Payments)
- 2025$6,109 · 15 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $6,109 | 15 |
What the 2025 payments were for
- Education$4,000 · 2 payments
- Travel and Lodging$1,466 · 7 payments
- Food and Beverage$642.50 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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