Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. William W Harless, MDPHD

Individual provider Specialist · NPI 1528100948

Dr. William W Harless, MDPHD practises Medical Oncology in Charleston, West Virginia. Qualified in 1996, 30 years ago. Practices with Charleston Area Medical Center Inc, a 968-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Alabama, Connecticut, Maine and Ohio and 1 more.

Years since qualifying
30
Licensed in
AL, CT, ME, OH, WV
In the registry since
2007
Specialties on file
6
Claim this listing Report a problem Suggest an edit

Practice location Address checks out

3415 Maccorkle Ave SE
Charleston, WV 25304-1334
Phone: (304) 388-4949
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 116 Northport Ave Ste 112, Belfast, ME 04915-6096 — (207) 505-4163
  • 6 Glen Cove Dr, Rockport, ME 04856-4272 — (207) 921-8969
  • 433 W High St, Bryan, OH 43506-1690 — (419) 630-2291
  • 3860 Teays Valley Rd Ste 5, Hurricane, WV 25526-9772 — (304) 388-4949

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence 21423 (WV)
Specialist Taxonomy 174400000X · Licence 37144 (AL)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence MD23392 (ME)
Medical Oncology Physician Taxonomy 207RX0202X · Licence MD23392 (ME)
Medical Oncology Physician Taxonomy 207RX0202X · Licence 35C.003724 (OH)
Medical Oncology Physician Taxonomy 207RX0202X · Licence 62961 (CT)

Record details

NPI number1528100948
Entity typeIndividual (Type 1)
GenderMale
Credentials MDPHD
Sole proprietorYes
NPI enumeratedFebruary 13, 2007
Last updated in NPPESJune 8, 2026
Certification dateJune 8, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyMEDICAL ONCOLOGY
Medical schoolOTHER
Graduated 1996 (30 years in practice)
Group practice Charleston Area Medical Center Inc — 968 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients111
Services billed 211 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $27 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Charleston Area Medical Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 968 clinicians in the practice; 12 are shown here.

Other providers in Charleston