Doctor profile · Federal record
Dr. Susan Ly, MD
Emergency Medicine Physician · Worcester, MA
- NPI 1164682415
- MIPS 91.6 / 100 · 2023
- 18 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
55 Lake Ave N, Department of Emergency Medicine
Worcester, MA 016550002
(508) 421-1400
fax (508) 421-1490 - Mailing address
-
50 Pasadena Pkwy
Worcester, MA 016051635
Credentials & registration
- NPI registered
- June 2008 — 18 yrs on file
- Profile last updated
- July 2, 2012
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- Massachusetts #246431
- Medicaid
- MA #110088143A
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1164682415. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
679
Distinct HCPCS
5
Medicare allowed
$116,282
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 419 | 401 | $184 | |
99284 |
Emergency department visit with moderate level of medical decision making | 155 | 152 | $126 | |
99291 |
Critical care, first 30-74 minutes | 68 | 67 | $222 | |
99283 |
Emergency department visit with low level of medical decision making | 20 | 19 | $75 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 17 | 17 | $185 |
In context: peer comparison
Among 82 peers in Worcester Emergency Medicine Physician, average services per provider: 70. This provider delivers 9.7× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
76
Patients
75
Total drug cost
$1,114
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ondansetron Hcl | Generic | 23 | 23 | $105 |
| Cefpodoxime Proxetil | Generic | 19 | 19 | $910 |
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 17 | 17 | $46 |
| Prednisone | Generic | 17 | 16 | $53 |
Frequently asked questions
What is Dr. Susan Ly's medical specialty?
Dr. Susan Ly practices Emergency Medicine Physician in Worcester, MA.
Where does Dr. Susan Ly practice?
Dr. Susan Ly practices at 55 Lake Ave N, Worcester, MA 016550002. Office phone: 5084211400.
What is Dr. Susan Ly's NPI?
Dr. Susan Ly's National Provider Identifier (NPI) is 1164682415, issued by NPPES.
What procedures does Dr. Susan Ly 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.