Doctor profile · Federal record
Dr. Elizabeth Obrien, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Weymouth, MA
- NPI 1922454560
- Accepts Medicare
- MIPS 79.9 / 100 · 2023
- 10 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
55 Fogg RD
Weymouth, MA 021902432
(781) 624-8000 - Additional location
-
300 Longwood Ave
Boston, MA 021155724
(617) 355-6000
Credentials & registration
- NPI registered
- May 2016 — 10 yrs on file
- Profile last updated
- April 15, 2025
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- Massachusetts #283565
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1922454560. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
826
Distinct HCPCS
3
Medicare allowed
$152,257
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 646 | 634 | $183 | |
99291 |
Critical care, first 30-74 minutes | 114 | 112 | $225 | |
99284 |
Emergency department visit with moderate level of medical decision making | 66 | 64 | $126 |
In context: peer comparison
Among 10 peers in Weymouth Emergency Medicine Physician, average services per provider: 122. This provider delivers 6.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
60
Patients
59
Total drug cost
$898
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Oxycodone Hcl | Generic | 17 | 17 | $41 |
| Azithromycin | Generic | 15 | 14 | $79 |
| Prednisone | Generic | 15 | 15 | $27 |
| Cefpodoxime Proxetil | Generic | 13 | 13 | $751 |
Hospital affiliations
Frequently asked questions
What is Dr. Elizabeth Obrien's medical specialty?
Dr. Elizabeth Obrien practices Emergency Medicine Physician in Weymouth, MA.
Where does Dr. Elizabeth Obrien practice?
Dr. Elizabeth Obrien practices at 55 Fogg RD, Weymouth, MA 021902432. Office phone: 7816248000.
What is Dr. Elizabeth Obrien's NPI?
Dr. Elizabeth Obrien's National Provider Identifier (NPI) is 1922454560, issued by NPPES.
Does Dr. Elizabeth Obrien accept Medicare assignment?
Yes. Dr. Elizabeth Obrien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Elizabeth Obrien commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Critical care (HCPCS 99291); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.