Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. William Carl Mercer, MD

Individual provider Family Medicine Physician · NPI 1780687558

Dr. William Carl Mercer, MD is a Family Practice in Wheeling, West Virginia. Graduated from West Virginia University School of Medicine in 1979, 47 years ago. Practices with Wheeling Hospital Inc, a 431-clinician group and accepts Medicare assignment. Licensed in West Virginia.

Years since qualifying
47
Trained at
West Virginia University School of Medicine
Licensed in
WV
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

58 16th St Fl 3
Wheeling, WV 26003-3660
Phone: (304) 232-5725
Fax: (304) 233-0698
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 12007 (WV)

Record details

NPI number1780687558
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 24, 2005
Last updated in NPPESSeptember 19, 2022
Certification dateSeptember 19, 2022

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Also practisesGERIATRIC MEDICINE
Medical schoolWEST VIRGINIA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1979 (47 years in practice)
Group practice Wheeling Hospital Inc — 431 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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