William Chapman, DO
NPI 1326091778 · Internal Medicine Physician · Charleston, WV
William Chapman, DO is a Internal Medicine Physician provider in Charleston, WV (NPI 1326091778).
Provider details
- NPI number
- 1326091778
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 1673 (WV)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Tramadol Hcl | 23 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 22 |
| Furosemide | 19 |
| Levothyroxine Sodium | 16 |
| Apixabanbrand: Eliquis | 15 |
| Atorvastatin Calcium | 14 |
| Erenumab-Aooebrand: Aimovig Autoinjector | 13 |
| Cyclobenzaprine Hcl | 13 |
| Escitalopram Oxalate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$484,826 across 341 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 1703 Midland TrailMilton, WV 25541-8582Phone: (304) 205-4041Fax: (800) 508-4274
Registry dates
- Enumerated
- 2006-05-18
- Last updated
- 2022-01-18
- Certified
- 2022-01-18
Frequently asked questions
- What is William Chapman's NPI number?
- William Chapman's National Provider Identifier (NPI) is 1326091778, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Chapman's specialty?
- William Chapman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Chapman located?
- William Chapman's practice location on file with NPPES is 1003 Oakhurst Dr, Charleston, WV 25314-2081.
- What is William Chapman's phone number?
- The practice phone number listed in the NPPES registry for William Chapman is (304) 205-4041.
- Is William Chapman's NPI active?
- Yes — William Chapman's NPI (1326091778) is active in the NPPES registry as of the last update on 2022-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.