Doctor profile · Federal record
Dr. Diane Lafferty, MSW, LCSW
Clinical Social Worker · Watertown, CT
- NPI 1174965719
- 28 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
27 Siemon Company Dr 111S
Watertown, CT 067952654
(203) 592-4483
fax (860) 417-6789
Credentials & registration
- NPI registered
- July 2013 — 13 yrs on file
- Profile last updated
- August 14, 2015
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 1041C0700X — NUCC code
- State license (1)
- Connecticut #5346
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1174965719. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
211
Distinct HCPCS
1
Medicare allowed
$23,823
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90837 |
Psychotherapy, 1 hour | 211 | 13 | $113 |
In context: peer comparison
Among 1 peers in Watertown Clinical Social Worker, average services per provider: 211. This provider delivers 1.0× the peer median.Frequently asked questions
What is Dr. Diane Lafferty's medical specialty?
Dr. Diane Lafferty practices Clinical Social Worker in Watertown, CT.
Where does Dr. Diane Lafferty practice?
Dr. Diane Lafferty practices at 27 Siemon Company Dr 111S, Watertown, CT 067952654. Office phone: 2035924483.
What is Dr. Diane Lafferty's NPI?
Dr. Diane Lafferty's National Provider Identifier (NPI) is 1174965719, issued by NPPES.
Does Dr. Diane Lafferty accept Medicare assignment?
Dr. Diane Lafferty does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Diane Lafferty commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90837). Source: CMS Medicare Physician & Other Practitioners file.