William C Mercer
NPI 1821180530 · Geriatric Medicine (Family Medicine) Physician · Wheeling, WV
William C Mercer is a Geriatric Medicine (Family Medicine) Physician organization in Wheeling, WV (NPI 1821180530).
Provider details
- NPI number
- 1821180530
- Entity type
- Organization
- Primary specialty
- Geriatric Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Mercer, Owner/Practitioner(304) 232-5725
- License
- 12007 (WV)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-29
- Last updated
- 2011-01-04
Frequently asked questions
- What is William C Mercer's NPI number?
- William C Mercer's National Provider Identifier (NPI) is 1821180530, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William C Mercer?
- William C Mercer is classified in the NPPES registry as Geriatric Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is William C Mercer located?
- William C Mercer's practice location on file with NPPES is 58 16th St, Wheeling, WV 26003-3660.
- What is William C Mercer's phone number?
- The practice phone number listed in the NPPES registry for William C Mercer is (302) 232-5725.
- Who is the authorized official for William C Mercer?
- The authorized official listed on William C Mercer's NPPES record is William Mercer, Owner/Practitioner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William C Mercer's NPI active?
- Yes — William C Mercer's NPI (1821180530) is active in the NPPES registry as of the last update on 2011-01-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.