Diane Clausen, M.D.
Hematology & Oncology Physician · E Setauket, NY
Diane Clausen, M.D. is a hematology & oncology physician with a practice address in E Setauket, New York, and NPI 1447256995, issued on Jun 21, 2005. Check the license (New York 186523, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Diane Clausen
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 186523 NY
Self-reported in NPPES; status is on the state search - Practice location
- 235 N Belle Mead RD, E Setauket, NY 11733
- Phone
- (631) 751-3000
- Enumerated
- Jun 21, 2005
- Entity
- Type 1 · individual
Also registered at 235 N Belle Mead RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Janet Badalamenti, ANPCAdult Health Nurse Practitioner1962407494
- Theresa Crafa, FNPCNurse Practitioner1811085921
- Kristina Demarco, ANPCAdult Health Nurse Practitioner1407853526
- Mary Ann Fragola, ANPCAdult Health Nurse Practitioner1508862079
- Stanley Ostrow, MDSpecialist1457355018
- Edward Samuel, MD, PHDHematology & Oncology Physician1730183302
Verify Diane Clausen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 186523Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
The Medicare quality score for 2023: 98.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
3 hematology & oncology physician records list a E Setauket practice address
They are 3 of the 28 NPPES records with a E Setauket practice address, and 999 hematology & oncology physician records in New York.
All 3 in E Setauket → All 999 in New York → Every provider in E Setauket →
Other hematology & oncology physician records in New York
- Anum Aamir, M.DAstoria, NY1245611052
- Robert Abderhalden, MDPainted Post, NY1407805906
- Mohammad Maher Abdul Hay, MDNew York, NY1447494729
- George Abraham, MDRochester, NY1225552649
- Avram Abramowitz, M.D.Fresh Meadows, NY1407855489
- Ghaith Abu Zeinah, M.D.New York, NY1174962146
- Suchitra Acharya, MDNew York, NY1871683052
- Jose Acostamadiedo, MDPlattsburgh, NY1013910256
- Sylvia Adams, MDNew York, NY1881767903
- Amit Agarwal, M.D.New York, NY1275790826
Common questions
What is Diane Clausen, M.D.'s NPI number?
Diane Clausen, M.D.'s National Provider Identifier (NPI) is 1447256995, issued on Jun 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Diane Clausen, M.D. located?
The NPPES record lists a practice address at 235 N Belle Mead RD, E Setauket, NY, 11733. Phone: (631) 751-3000. Providers update this record themselves, so call before visiting.
How can I verify Diane Clausen, M.D.'s license?
NPPES lists New York license number 186523, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Diane Clausen, M.D.'s Medicare quality score?
The 2023 MIPS final score is 98.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.