Doctor profile · Federal record
Dr. Louisa Mazza-Hilway, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Student in an Organized Health Care Education/Training Program · Paterson, NJ
- NPI 1225591423
- Accepts Medicare
- 7 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
703 Main St
Paterson, NJ 075032621
(973) 754-2000
Credentials & registration
- NPI registered
- April 2019 — 7 yrs on file
- Profile last updated
- April 19, 2022
- Year of graduation
- 2019 — 7 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- New Jersey #25MA11282700
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1225591423. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
235
Distinct HCPCS
3
Medicare allowed
$40,142
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 155 | 155 | $183 | |
99284 |
Emergency department visit with moderate level of medical decision making | 65 | 62 | $128 | |
99291 |
Critical care, first 30-74 minutes | 15 | 14 | $227 |
In context: peer comparison
Among 22 peers in this city , average services per provider: 83. This provider delivers 2.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
27
Patients
27
Total drug cost
$177
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 14 | 14 | $152 |
| Ibuprofen | Generic | 13 | 13 | $25 |
Hospital affiliations
Frequently asked questions
What is Dr. Louisa Mazza-Hilway's medical specialty?
Dr. Louisa Mazza-Hilway practices Emergency Medicine Physician in Paterson, NJ.
Where does Dr. Louisa Mazza-Hilway practice?
Dr. Louisa Mazza-Hilway practices at 703 Main St, Paterson, NJ 075032621. Office phone: 9737542000.
What is Dr. Louisa Mazza-Hilway's NPI?
Dr. Louisa Mazza-Hilway's National Provider Identifier (NPI) is 1225591423, issued by NPPES.
Does Dr. Louisa Mazza-Hilway accept Medicare assignment?
Yes. Dr. Louisa Mazza-Hilway accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Louisa Mazza-Hilway commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.