Doctor profile · Federal record
Dr. William Brennan
Clinical Social Worker · New Britain, CT
- NPI 1346624822
- 11 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
75 N Mountain RD
New Britain, CT 060533468
(860) 224-6367
Credentials & registration
- NPI registered
- July 2015 — 11 yrs on file
- Specialty taxonomy
- 1041C0700X — NUCC code
- State license (1)
- Connecticut #001219
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1346624822. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
343
Distinct HCPCS
1
Medicare allowed
$6,170
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90853 |
Group psychotherapy | 343 | 64 | $18 |
In context: peer comparison
Among 3 peers in New Britain Clinical Social Worker, average services per provider: 158. This provider delivers 2.2× the peer median.Frequently asked questions
What is Dr. William Brennan's medical specialty?
Dr. William Brennan practices Clinical Social Worker in New Britain, CT.
Where does Dr. William Brennan practice?
Dr. William Brennan practices at 75 N Mountain RD, New Britain, CT 060533468. Office phone: 8602246367.
What is Dr. William Brennan's NPI?
Dr. William Brennan's National Provider Identifier (NPI) is 1346624822, issued by NPPES.
What procedures does Dr. William Brennan commonly perform?
Top Medicare-reported procedures in 2023: Group psychotherapy (HCPCS 90853). Source: CMS Medicare Physician & Other Practitioners file.