Doctor profile · Federal record
Dr. Thomas O'Brien, D.O.
Family Medicine Physician (CMS: Family Practice) · Brooklyn, NY
- NPI 1063434298
- 31 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1700 Flatbush Ave
Brooklyn, NY 112103943
(516) 330-4173 - Mailing address
-
336 Lagoon Dr S
Copiague, NY 117265416
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- January 8, 2026
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- New York #210513
- Medicaid
- NY #01971484
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1063434298. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
52
Distinct HCPCS
2
Medicare allowed
$7,545
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 29 | 26 | $105 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 23 | 23 | $195 |
In context: peer comparison
Among 125 peers in Brooklyn Family Medicine Physician, average services per provider: 152. This provider delivers 0.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
235
Patients
47
Total drug cost
$4,731
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 30 | 0 | $712 |
| Prednisone | Generic | 28 | 25 | $25 |
| Azithromycin | Generic | 23 | 22 | $106 |
| Zolpidem Tartrate | Generic | 22 | 0 | $2,145 |
| Levothyroxine Sodium | Generic | 21 | 0 | $223 |
| Amlodipine Besylate | Generic | 19 | 0 | $134 |
| Metoprolol Succinate | Generic | 19 | 0 | $310 |
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 18 | 0 | $678 |
| Losartan Potassium | Generic | 15 | 0 | $134 |
| Azelastine Hcl | Generic | 14 | 0 | $161 |
Frequently asked questions
What is Dr. Thomas O'Brien's medical specialty?
Dr. Thomas O'Brien practices Family Medicine Physician in Brooklyn, NY.
Where does Dr. Thomas O'Brien practice?
Dr. Thomas O'Brien practices at 1700 Flatbush Ave, Brooklyn, NY 112103943. Office phone: 5163304173.
What is Dr. Thomas O'Brien's NPI?
Dr. Thomas O'Brien's National Provider Identifier (NPI) is 1063434298, issued by NPPES.
Does Dr. Thomas O'Brien accept Medicare assignment?
Dr. Thomas O'Brien does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Thomas O'Brien commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.