Doctor profile · Federal record
Dr. John Brennan, MD
Orthopaedic Surgery Physician (CMS: Orthopedic Surgery) · Sports Medicine (Orthopaedic Surgery) Physician · East Setauket, NY
- NPI 1154353977
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 33 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
6 Technology Dr Ste 100
East Setauket, NY 117334079
(631) 689-6698
fax (631) 751-5548
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- May 24, 2019
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 207X00000X — NUCC code
- State license (1)
- New York #211330
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1154353977. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
20,431
Distinct HCPCS
10
Medicare allowed
$595,720
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J7329 |
Hyaluronan or derivative, trivisc, for intra-articular injection, 1 mg | 13,900 | 143 | $9 | |
J7318 |
Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg | 1,560 | 19 | $7 | |
20611 |
Aspiration and/or injection of fluid large joint using ultrasound guidance | 986 | 405 | $137 | |
J7325 |
Hyaluronan or derivative, synvisc or synvisc-one, for intra-articular injection, 1 mg | 784 | 13 | $9 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 720 | 472 | $105 | |
J1030 |
Injection, methylprednisolone acetate, 40 mg | 706 | 351 | $8 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 346 | 279 | $148 | |
73564 |
X-ray of knee, 4 or more views | 262 | 244 | $72 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 177 | 176 | $132 | |
73030 |
X-ray of shoulder, minimum of 2 views | 159 | 142 | $47 |
In context: peer comparison
Among 7 peers in East Setauket Orthopaedic Surgery Physician, average services per provider: 432. This provider delivers 47× the peer median.Open Payments
Industry payments received
All-time total
$85
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Dentsply Sirona INC | 1 | $49.26 | |
| Stryker Corporation | 1 | $35.80 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
281
Patients
173
Total drug cost
$2,571
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Meloxicam | Generic | 112 | 76 | $417 |
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 48 | 28 | $577 |
| Prednisone | Generic | 40 | 30 | $95 |
| Methylprednisolone | Generic | 21 | 17 | $171 |
| Oxycodone Hcl | Generic | 13 | 0 | $136 |
| Amoxicillin | Generic | 12 | 11 | $37 |
| Gabapentin | Generic | 12 | 11 | $90 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 12 | 0 | $175 |
| Celecoxib | Generic | 11 | 0 | $874 |
Frequently asked questions
What is Dr. John Brennan's medical specialty?
Dr. John Brennan practices Orthopaedic Surgery Physician in East Setauket, NY.
Where does Dr. John Brennan practice?
Dr. John Brennan practices at 6 Technology Dr Ste 100, East Setauket, NY 117334079. Office phone: 6316896698.
What is Dr. John Brennan's NPI?
Dr. John Brennan's National Provider Identifier (NPI) is 1154353977, issued by NPPES.
Does Dr. John Brennan accept Medicare assignment?
Yes. Dr. John Brennan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Brennan commonly perform?
Top Medicare-reported procedures in 2023: Hyaluronan or derivative, trivisc, for intra-articular injection, 1 mg (HCPCS J7329); Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg (HCPCS J7318); Aspiration and/or injection of fluid large joint using ultrasound guidance (HCPCS 20611). Source: CMS Medicare Physician & Other Practitioners file.