Doctor profile · Federal record
Dr. Liam Mahoney
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Student in an Organized Health Care Education/Training Program · Boston, MA
- NPI 1407243504
- 17 yrs in practice
- Licensed in 2 states
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1 Boston Medical Ctr Pl Dept of, Dowling 1 South Room 1322
Boston, MA 021182908
(617) 414-4929
Credentials & registration
- NPI registered
- April 2015 — 11 yrs on file
- Profile last updated
- August 21, 2020
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- Rhode Island #MD17234 · Massachusetts #278720
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1407243504. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
784
Distinct HCPCS
8
Medicare allowed
$101,279
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 406 | 387 | $175 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 145 | 140 | $8 | |
99284 |
Emergency department visit with moderate level of medical decision making | 135 | 128 | $121 | |
99291 |
Critical care, first 30-74 minutes | 29 | 29 | $214 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 25 | 18 | $50 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 17 | 17 | $120 | |
99283 |
Emergency department visit with low level of medical decision making | 16 | 16 | $72 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 11 | 11 | $175 |
In context: peer comparison
Among 183 peers in Boston Emergency Medicine Physician, average services per provider: 65. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$461
Transactions
7
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Pharmaceuticals, INC | 6 | $446.45 | |
| Teva Pharmaceuticals USA, INC. | 1 | $15.03 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
59
Patients
59
Total drug cost
$1,760
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cefpodoxime Proxetil | Generic | 30 | 30 | $1,627 |
| Azithromycin | Generic | 15 | 15 | $98 |
| Prednisone | Generic | 14 | 14 | $34 |
Hospital affiliations
Frequently asked questions
What is Dr. Liam Mahoney's medical specialty?
Dr. Liam Mahoney practices Emergency Medicine Physician in Boston, MA.
Where does Dr. Liam Mahoney practice?
Dr. Liam Mahoney practices at 1 Boston Medical Ctr Pl Dept of, Boston, MA 021182908. Office phone: 6174144929.
What is Dr. Liam Mahoney's NPI?
Dr. Liam Mahoney's National Provider Identifier (NPI) is 1407243504, issued by NPPES.
Does Dr. Liam Mahoney accept Medicare assignment?
Dr. Liam Mahoney does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Liam Mahoney commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.