William W. Harless, M.D. PHD.
Medical Oncology Physician · Charleston, WV
William W. Harless, M.D. PHD. is a medical oncology physician with a practice address in Charleston, West Virginia, and NPI 1528100948, issued on Feb 13, 2007. Check the license (West Virginia 21423, as entered in NPPES) on the West Virginia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- William W. Harless
- Credential
- M.D. PHD.
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License numbers
- 21423 WV
37144 AL
62961 CT
MD23392 ME
35C.003724 OH
Self-reported in NPPES; status is on the state search - Practice location
- 3415 Maccorkle Ave SE, Charleston, WV 25304
- Phone
- (304) 388-4949
- Enumerated
- Feb 13, 2007
- Record last updated
- Jun 8, 2026
- Medicare enrollment
- Enrolled (PECOS I20210526001579); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 11 in West Virginia → Look up another NPI →
Also registered at 3415 Maccorkle Ave SE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Leah Atkinson, APRN-CNPFamily Nurse Practitioner1043548357
- Muhammad Awidi, MDHematology & Oncology Physician1023670783
- Mariah Boggess, APRN-CNPNurse Practitioner1942024682
- Nicholas Cavender, PHARMDPharmacist1104506948
- Kok Hoe Chan, MDHematology & Oncology Physician1548755135
- Whitney Eastwood, PA-CPhysician Assistant1659500528
Verify William W. Harless in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWest Virginia Board of Medicine
Search for license 21423Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average medical oncology physician in 2024
355 Medicare Part D claims for 109 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 26 claims were for opioids.
Most prescribed
- Prednisone28 claims
- Hydroxyurea17 claims
- Sulfamethoxazole-Trimethoprim16 claims
- Brukinsa15 claims
- Acyclovir14 claims
- Ondansetron Hcl14 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.
Industry payments in 2024: $50.46
2 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Charleston Area Medical Center IncCharleston, WV
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William W. Harless among 11 medical oncology physician records in West Virginia
William W. Harless, M.D. PHD. is one of 11 medical oncology physician records with a practice address in West Virginia. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 64% of them.
- NPI issued2007 · 64% of these records are older, 18% newer
- In a Medicare fileYes · 91% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Record last updated2026 · 82% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a West Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in West Virginia
There are 11 medical oncology physician records in West Virginia.
All 11 in West Virginia → Every provider in Charleston → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Justin Cohen, M.D.Charleston, WV 253041780647453
- Kevin Bird, M.D.Martinsburg, WV 254011851361521
- Waris WarisLogan, WV 256011891807822
- Aneel Chowdhary, M.D.Huntington, WV 257011447451067
- Jennifer Dotson, DOHuntington, WV 257011750726600
- Gerrit Kimmey, M.D.Huntington, WV 257051720192545
- Mayez El-Harake, MDBeckley, WV 258011578550679
- Rajiv Khanna, MDBeckley, WV 258011518955913
Common questions
What is William W. Harless, M.D. PHD.'s NPI number?
William W. Harless, M.D. PHD.'s National Provider Identifier (NPI) is 1528100948, issued on Feb 13, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William W. Harless, M.D. PHD. located?
The NPPES record lists a practice address at 3415 Maccorkle Ave SE, Charleston, WV, 25304. Phone: (304) 388-4949. Providers update this record themselves, so call before visiting.
How can I verify William W. Harless, M.D. PHD.'s license?
NPPES lists West Virginia license number 21423, as entered by the provider. Search the West Virginia Board of Medicine at https://wvbom.wv.gov/public/search/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William W. Harless, M.D. PHD. prescribe under Medicare Part D?
In 2024, William W. Harless, M.D. PHD. had 355 Medicare Part D claims for 109 beneficiaries; the average among medical oncology physician prescribers was 703. 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.