Alexandra K. Retana, M.D.
NPI 1487797874ActiveIndividual· Internal Medicine, Gastroenterology· Dartmouth, MA
Internal Medicine, Gastroenterology (M.D.) with Lifespan Physician Group of Massachusetts Inc, practicing in Dartmouth, Massachusetts. Their prescriptions cost Medicare Part D more than their services did: $692,226 for 1,456 claims, against $62,835 paid for services in 2024. Ardelyx, Inc. was the largest of 9 companies reporting payments in 2025, $288.39 in all, mostly food and beverage. Lists Saint Anne's Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1487797874 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 15, 2007 |
| Last updated in NPPES | Apr 25, 2023 |
| Certified by provider | Apr 25, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 230736 | MA |
| Internal Medicine | 207R00000X | 230736 | MA |
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 - Gastroenterology (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 331 |
|---|---|
| Services billed | 651 across 42 procedure codes |
| Paid by Medicare | $62,835 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,456 · 2,352 30-day fills |
|---|---|
| Patients | 282 |
| Total drug cost | $692,226 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
Medical group
- Lifespan Physician Group of Massachusetts IncFall River, MA · 476 clinicians
Hospital affiliations
- Saint Anne's HospitalFall River, MA
- Southcoast Hospitals GroupFall River, MA
Industry payments (Open Payments)
- 2025$288.39 · 12 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ardelyx, Inc. | $54.00 | 2 |
| Abbvie Inc. | $52.34 | 2 |
| Phathom Pharmaceuticals, Inc. | $44.48 | 2 |
| Actelion Pharmaceuticals US, Inc. | $32.98 | 1 |
| Genzyme Corporation | $24.66 | 1 |
What the 2025 payments were for
- Food and Beverage$288.39 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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