Doctor profile · Federal record
Dr. Diane Clausen, M.D.
Hematology & Oncology Physician · E Setauket, NY
- NPI 1447256995
- MIPS 91.4 / 100 · 2023
- 21 yrs on file
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
235 N Belle Mead RD
E Setauket, NY 117333456
(631) 751-3000
fax (631) 675-2001 - Mailing address
-
1500 Route 112, Bldg 4
Port Jefferson Station, NY 117768055
Credentials & registration
- NPI registered
- June 2005 — 21 yrs on file
- Profile last updated
- August 20, 2019
- Specialty taxonomy
- 207RH0003X — NUCC code
- State license (1)
- New York #186523
- Medicaid
- NY #01681621
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1447256995. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
468
Distinct HCPCS
4
Medicare allowed
$53,294
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
G0316 |
Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th | 189 | 71 | $35 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 135 | 76 | $139 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 133 | 128 | $202 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 11 | 11 | $92 |
In context: peer comparison
Among 1 peers in E Setauket Hematology & Oncology Physician, average services per provider: 117. This provider delivers 4.0× the peer median.Frequently asked questions
What is Dr. Diane Clausen's medical specialty?
Dr. Diane Clausen practices Hematology & Oncology Physician in E Setauket, NY.
Where does Dr. Diane Clausen practice?
Dr. Diane Clausen practices at 235 N Belle Mead RD, E Setauket, NY 117333456. Office phone: 6317513000.
What is Dr. Diane Clausen's NPI?
Dr. Diane Clausen's National Provider Identifier (NPI) is 1447256995, issued by NPPES.
What procedures does Dr. Diane Clausen commonly perform?
Top Medicare-reported procedures in 2023: Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th (HCPCS G0316); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.