Doctor profile · Federal record
Dr. Diane Witmer, LCSW
Clinical Social Worker · Clinical Social Worker · Clinical Social Worker · East Islip, NY
- NPI 1033771225
- Accepts Medicare
- 16 yrs in practice
- Licensed in 3 states
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
56 Marilynn St
East Islip, NY 117302703
(631) 338-3913
Credentials & registration
- NPI registered
- July 2019 — 7 yrs on file
- Profile last updated
- November 27, 2023
- Year of graduation
- 2010 — 16 yrs since
- Specialty taxonomy
- 1041C0700X — NUCC code
- State licenses (3)
- Tennessee #7058 · New York #088174 · Virginia #0904011127
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1033771225. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
74
Distinct HCPCS
1
Medicare allowed
$3,997
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90832 |
Psychotherapy, 30 minutes | 74 | 18 | $54 |
In context: peer comparison
Among 2 peers in East Islip Clinical Social Worker, average services per provider: 119. This provider delivers 0.6× the peer median.Frequently asked questions
What is Dr. Diane Witmer's medical specialty?
Dr. Diane Witmer practices Clinical Social Worker in East Islip, NY.
Where does Dr. Diane Witmer practice?
Dr. Diane Witmer practices at 56 Marilynn St, East Islip, NY 117302703. Office phone: 6313383913.
What is Dr. Diane Witmer's NPI?
Dr. Diane Witmer's National Provider Identifier (NPI) is 1033771225, issued by NPPES.
Does Dr. Diane Witmer accept Medicare assignment?
Yes. Dr. Diane Witmer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diane Witmer commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90832). Source: CMS Medicare Physician & Other Practitioners file.