Marissa E. Baltus, MD
NPI 1942308796ActiveIndividual· Internal Medicine· Burlington, MA
Internal Medicine (MD) in Burlington, Massachusetts, trained at Tufts University School of Medicine (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $266,301 for 4,123 claims, against $33,406 paid for services in 2024.
Overview
| NPI | 1942308796 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 20, 2006 |
| Last updated in NPPES | Apr 15, 2021 |
| Certified by provider | Apr 15, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 74778 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 334 |
|---|---|
| Services billed | 681 across 21 procedure codes |
| Paid by Medicare | $33,406 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,123 · 10,842 30-day fills |
|---|---|
| Patients | 834 |
| Total drug cost | $266,301 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Lahey Clinic IncBurlington, MA · 1,381 clinicians
Hospital affiliations
- Beth Israel Deaconess Medical CenterBoston, MA
- Lahey Hospital & Medical Center, BurlingtonBurlington, MA
- Northeast Hospital CorporationBeverly, MA
- Winchester HospitalWinchester, MA
Other facilities
- Beth Israel Lahey Health at HomeHome health agency · Beverly, MA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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