Andrea R. Rizzo, MD
NPI 1558351676ActiveIndividual· Internal Medicine· Sudbury, MA
Internal Medicine (MD) in Sudbury, Massachusetts, trained at Tufts University School of Medicine (class of 1983). Their prescriptions cost Medicare Part D more than their services did: $249,470 for 3,635 claims, against $116,221 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 7 companies reporting payments in 2025, $237.06 in all, mostly food and beverage.
Overview
| NPI | 1558351676 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 28, 2005 |
| Last updated in NPPES | May 26, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 56243 | MA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 335 |
|---|---|
| Services billed | 1,343 across 31 procedure codes |
| Paid by Medicare | $116,221 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,635 · 6,785 30-day fills |
|---|---|
| Patients | 562 |
| Total drug cost | $249,470 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1983 |
| Medicare specialty | Internal Medicine |
Medical group
- Emerson Practice Associates, IncConcord, MA · 240 clinicians
Hospital affiliations
- Emerson Hospital -W Concord, MA
- Lahey Hospital & Medical Center, BurlingtonBurlington, MA
- Massachusetts Eye and Ear Infirmary -Boston, MA
- Metrowest Medical CenterFramingham, MA
- Umass Memorial Medical Center/University CampusWorcester, MA
Other facilities
- Bayada Home Health Care, IncHome health agency · Wilmington, MA
- Emerson Hospital Home Care ProgramHome health agency · Concord, MA
- Pathways HealthcareHome health agency · Westwood, MA
- Vna and Hospice of Greater MilfordHome health agency · Milford, MA
- Vna Care NetworkHome health agency · Worcester, MA
- Constellation HospiceHospice · Newburyport, MA
- Spaulding Rehabilitation HospitalInpatient rehabilitation facility · Charlestown, MA
Industry payments (Open Payments)
- 2025$237.06 · 10 payments from 7 companies
- 2024$280.12 · 12 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $58.92 | 3 |
| Sanofi Pasteur Inc. | $37.49 | 1 |
| Pfizer Inc. | $33.17 | 2 |
| Exact Sciences Corporation | $29.58 | 1 |
| Abbvie Inc. | $28.67 | 1 |
What the 2025 payments were for
- Food and Beverage$237.06 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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