William May Lee, M.D.
Hematology & Oncology Physician · Newark, DE
William May Lee, M.D. is a hematology & oncology physician with a practice address in Newark, Delaware, and NPI 1568726248, issued on Jun 27, 2012. Check the license (Delaware C1-0012926, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- William May Lee
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- C1-0012926 DE
D86861 MD
MD453444 PA
Self-reported in NPPES; status is on the state search - Practice location
- 4701 Ogletown Stanton RD Ste 2400, Newark, DE 19713
- Phone
- (302) 731-7782
- Enumerated
- Jun 27, 2012
- Record last updated
- Jun 21, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20150501001130); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 31 in Delaware → Look up another NPI →
Verify William May Lee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
Search for license C1-0012926Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
About as many Medicare Part D claims as the average hematology & oncology physician in 2024
881 Medicare Part D claims for 159 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims. 53 claims were for opioids.
Most prescribed
- Eliquis61 claims
- Pantoprazole Sodium32 claims
- Oxycodone Hcl29 claims
- Acyclovir27 claims
- Potassium Chloride26 claims
- Methylprednisolone25 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.
Bills Medicare through 2 group practices
- Christiana Care Health Services IncWest Grove, PA
- Medical Oncology Hematology Consultants PAMiddletown, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William May Lee among 31 hematology & oncology physician records in Delaware
William May Lee, M.D. is one of 31 hematology & oncology physician records with a practice address in Delaware. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 61% of them.
- NPI issued2012 · 61% of these records are older, 32% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2012 · median 2006 among the 18 with a school on file
- Record last updated2019 · 58% 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 Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Delaware
There are 31 hematology & oncology physician records in Delaware.
All 31 in Delaware → Every provider in Newark → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Ammar Alzoubi, MDNewark, DE 197131386720340
- Steven Falchuk, MDNewark, DE 197131134128283
- Andrew Himelstein, MDNewark, DE 197131841269966
- Martha Hosford Skapof, M.D.Newark, DE 197131457301657
- Jamil Khatri, M.D.Newark, DE 197131427008622
- Evan Lapinsky, MDNewark, DE 197131134486046
- Jamal Misleh, MDNewark, DE 197131174665822
- Barbara Neilan, M.D.Newark, DE 197131588614697
Common questions
What is William May Lee, M.D.'s NPI number?
William May Lee, M.D.'s National Provider Identifier (NPI) is 1568726248, issued on Jun 27, 2012. An NPI identifies a provider in billing; it is not a license.
Where is William May Lee, M.D. located?
The NPPES record lists a practice address at 4701 Ogletown Stanton RD Ste 2400, Newark, DE, 19713. Phone: (302) 731-7782. Providers update this record themselves, so call before visiting.
How can I verify William May Lee, M.D.'s license?
NPPES lists Delaware license number C1-0012926, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William May Lee, M.D. prescribe under Medicare Part D?
In 2024, William May Lee, M.D. had 881 Medicare Part D claims for 159 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
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.