Ansar Hassan, MD
NPI 1689859332ActiveIndividual· Thoracic Surgery (Cardiothoracic Vascular Surgery)· Portland, ME
Thoracic Surgery (Cardiothoracic Vascular Surgery) (MD) with Mainehealth and 1 other group, practicing in Portland, Maine. 82 Medicare patients in 2024, $108,109 paid; all of their 169 Part D prescriptions were generic. Edwards Lifesciences Corporation was the largest of 6 companies reporting payments in 2025, $5,039 in all, mostly travel and lodging. Lists Central Maine Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1689859332 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 31, 2007 |
| Last updated in NPPES | Jul 1, 2021 |
| Certified by provider | Jul 1, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Thoracic Surgery (Cardiothoracic Vascular Surgery) Primary | 208G00000X | MD24930 | ME |
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 - Cardiac Surgery (ME) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 82 |
|---|---|
| Services billed | 186 across 35 procedure codes |
| Paid by Medicare | $108,109 |
Part D prescriptions in 2024
| Prescriptions (claims) | 169 · 169 30-day fills |
|---|---|
| Patients | 62 |
| Total drug cost | $616.98 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 1998 |
|---|---|
| Medicare specialty | Cardiac Surgery |
| Telehealth | Offers telehealth |
Medical groups
- MainehealthPortland, ME · 2,633 clinicians
- Central Maine Medical CenterLewiston, ME · 342 clinicians
Hospital affiliations
- Central Maine Medical CenterLewiston, ME
- Maine General Medical CenterAugusta, ME
- Mainehealth Maine Medical CenterPortland, ME
- Mainehealth Mid Coast HospitalBrunswick, ME
- Mainehealth Pen Bay HospitalRockport, ME
Industry payments (Open Payments)
- 2025$5,039 · 32 payments from 6 companies
- 2024$589.30 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Edwards Lifesciences Corporation | $2,529 | 15 |
| Intuitive Surgical, Inc. | $1,596 | 8 |
| Medtronic, Inc. | $524.33 | 6 |
| Atricure, Inc. | $162.64 | 1 |
| Abbott Laboratories | $144.19 | 1 |
What the 2025 payments were for
- Travel and Lodging$3,080 · 8 payments
- Food and Beverage$1,959 · 24 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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