Catherine Helen Horwitz, MD
NPI 1073713632ActiveIndividual· Emergency Medicine· Weymouth, MA
Emergency Medicine (MD) in Weymouth, Massachusetts, trained at Tufts University School of Medicine (class of 2004). 576 Medicare patients in 2024, $75,515 paid; nearly all of their 91 Part D prescriptions were generic (91%).
Overview
| NPI | 1073713632 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 23, 2007 |
| Last updated in NPPES | Aug 5, 2026 |
| Certified by provider | Aug 5, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | 232442 | 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 - Emergency Medicine (MA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 576 |
|---|---|
| Services billed | 611 across 23 procedure codes |
| Paid by Medicare | $75,515 |
Part D prescriptions in 2024
| Prescriptions (claims) | 91 · 91 30-day fills |
|---|---|
| Patients | 72 |
| Total drug cost | $2,500 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Tufts University School of Medicine |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Emergency Medicine |
Medical groups
- Coastal Medical AssociatesWeymouth, MA · 443 clinicians
- Emergency Physician Associates of Massachusetts PCFramingham, MA · 46 clinicians
- Emerson Emergency Physicians LLCConcord, MA · 6 clinicians
Hospital affiliations
- Emerson Hospital -W Concord, MA
- Metrowest Medical CenterFramingham, MA
- Newton-Wellesley HospitalNewton, MA
- South Shore HospitalSouth Weymouth, 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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All 34 emergency medicine physicians in Weymouth · All emergency medicine physicians in Massachusetts