Doctor profile · Federal record
Dr. Daniel O'Brien, PA-C
Emergency Medicine Physician (CMS: Physician Assistant) · Physician Assistant · Southborough, MA
- NPI 1689284366
- Accepts Medicare
- MIPS 100.0 / 100 · 2023
- 5 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
9 Watkins Ln
Southborough, MA 017722072
(508) 612-1567 - Additional location
-
129 S Main St
Milford, MA 017573290
(774) 462-3339
fax (508) 381-0204 - Mailing address
-
8 Cirrus Dr Apt 8103
Ashland, MA 017214458
Credentials & registration
- NPI registered
- August 2020 — 6 yrs on file
- Profile last updated
- August 28, 2025
- Year of graduation
- 2021 — 5 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- Massachusetts #PA8087
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1689284366. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$47
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Dentsply Ih Ab | 1 | $46.90 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
25
Patients
25
Total drug cost
$844
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cefpodoxime Proxetil | Generic | 14 | 14 | $718 |
| Doxycycline Hyclate | Generic | 11 | 11 | $126 |
Frequently asked questions
What is Dr. Daniel O'Brien's medical specialty?
Dr. Daniel O'Brien practices Emergency Medicine Physician in Southborough, MA.
Where does Dr. Daniel O'Brien practice?
Dr. Daniel O'Brien practices at 9 Watkins Ln, Southborough, MA 017722072. Office phone: 5086121567.
What is Dr. Daniel O'Brien's NPI?
Dr. Daniel O'Brien's National Provider Identifier (NPI) is 1689284366, issued by NPPES.
Does Dr. Daniel O'Brien accept Medicare assignment?
Yes. Dr. Daniel O'Brien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.