WILLIAM W. HARLESS M.D. PHD. – NPI #1528100948
Internal Medicine

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

Health Care Provider Taxonomy Code for Internal Medicine

WILLIAM HARLESS is a physician located in CHARLESTON, WV. NPPES has assigned the NPI number 1528100948 to WILLIAM HARLESS on February 13, 2007. It is a Type-1 NPI, indicating this NPI number is associated with an individual. According to the NPI Registry, there are 2 additional location(s) assigned to this provider which are listed below. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207RX0202X from the Health Care Provider Taxonomy code set, which is classified as Internal Medicine, specializing in Medical Oncology

The NPI profile was last updated on Feb 06, 2026. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for WILLIAM HARLESS below.

NPI Profile for
WILLIAM W. HARLESS

NPI Number
1528100948
Enumeration Date

(more than 19 years ago)
Entity Type
Type-1  Individual (Male)
Legal Name
WILLIAM W. HARLESS
Credentials
M.D. PHD.
Primary location
3415 MACCORKLE AVE SE
CHARLESTON, WV 25304-1334
Phone: (304) 388-4949 Fax:
2 Other location(s):
433 W High St
Bryan, OH 43506-1690
Phone: (419) 630-2291
Fax: (419) 630-2181
3860 Teays Valley Rd Ste 5
Hurricane, WV 25526-9772
Phone: (304) 388-4949
Mailing address
1400 AFFLINK PL STE 101
TUSCALOOSA, AL 35406-2452
Phone: (205) 366-9740 Fax: (205) 344-9992
Sole Proprietor
Yes
Updated
Certification Date
Feb 06, 2026

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
207RX0202X
- Internal Medicine / Medical Oncology (Primary)		 ME MD23392
174400000X
- Specialist		 AL 37144

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.

Additional Information

Accepts Medicare
This provider accepts Medicare-approved amount as payment in full. The Medicare-approved amount is the total the provider can be paid. When a provider accepts the Medicare-approved amount as payment, you won't be billed for more than the Medicare deductible & coinsureance.
Medicare Ordering & Referring
Provider can:
  • Refer to Part B
  • Order Durable Medical Equipment
  • Refer to Home Health Agency
  • Order Power Mobility Devices
Affiliations
WILLIAM HARLESS is affiliated with the following medical group(s):
  • HOSPITAL
    • A R GOULD HOSPITAL
      PO BOX 151
      PRESQUE ISLE, ME 04769
    • CHARLESTON AREA MEDICAL CENTER
      501 MORRIS STREET
      CHARLESTON, WV 25301
    • NORTHERN MAINE MEDICAL CENTER
      194 E MAIN STREET
      FORT KENT, ME 04743
    • SOUTHWESTERN VERMONT MEDICAL CENTER
      100 HOSPITAL DRIVE
      BENNINGTON, VT 05201

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