William J. Li Pera, MD
Hematology & Oncology Physician · Port Jefferson Station, NY
William J. Li Pera, MD is a hematology & oncology physician with a practice address in Port Jefferson Station, New York, and NPI 1932103330, issued on Jun 13, 2005. Check the license (New York 156944, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- William J. Li Pera
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 156944 NY
Self-reported in NPPES; status is on the state search - Practice location
- 49 Nesconset Hwy, Port Jefferson Station, NY 11776
- Phone
- (631) 751-3000
- Enumerated
- Jun 13, 2005
- Record last updated
- Jan 17, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (631) 509-6559
- Medicaid ID
- 01092768 NY
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,163 in New York → Look up another NPI →
Also registered at 49 Nesconset Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brandi Beere, NPFamily Nurse Practitioner1194505891
- David Chu, M.D.Hematology & Oncology Physician1750585287
- George Cyriac, M.D.Hematology & Oncology Physician1477843100
- Emma FedorykPhysician Assistant1376051748
- Jerry George, D.O.Hematology & Oncology Physician1972765733
- Adriana Guigova, DOHematology & Oncology Physician1891094447
Verify William J. Li Pera 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 156944Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
79 Medicare Part D claims for 39 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
Most prescribed
- Eliquis15 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 99.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
William J. Li Pera among 1,163 hematology & oncology physician records in New York
William J. Li Pera, MD is one of 1,163 hematology & oncology physician records with a practice address in New York. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 72% of these records are
- Record last updated2020 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
17 hematology & oncology physician records list a practice address in Port Jefferson Station
They are 17 of the 951 NPPES records with a practice address in Port Jefferson Station, and 1,163 hematology & oncology physician records in New York.
All 1,163 in New York → Every provider in Port Jefferson Station → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- David Chu, M.D.Port Jefferson Station, NY 117761750585287
- George Cyriac, M.D.Port Jefferson Station, NY 117761477843100
- Shabeer DarPort Jefferson Station, NY 117761750332383
- Amishi DesaiPort Jefferson Station, NY 117761902141914
- Meytal Fabrikant, MDPort Jefferson Station, NY 117761497132385
- Jerry George, D.O.Port Jefferson Station, NY 117761972765733
- Adriana Guigova, DOPort Jefferson Station, NY 117761891094447
- Joshua Harris, M.D.Port Jefferson Station, NY 117761649531815
Common questions
What is William J. Li Pera, MD's NPI number?
William J. Li Pera, MD's National Provider Identifier (NPI) is 1932103330, issued on Jun 13, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William J. Li Pera, MD located?
The NPPES record lists a practice address at 49 Nesconset Hwy, Port Jefferson Station, NY, 11776. Phone: (631) 751-3000. Providers update this record themselves, so call before visiting.
How can I verify William J. Li Pera, MD's license?
NPPES lists New York license number 156944, 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.
How much does William J. Li Pera, MD prescribe under Medicare Part D?
In 2024, William J. Li Pera, MD had 79 Medicare Part D claims for 39 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is William J. Li Pera, MD's MIPS final score?
The 2023 MIPS final score is 99.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.