William Barclay, MD
NPI 1548945017 · Emergency Medicine Physician · Charleston, SC
Enrolled with Medicare as Order and Referring Only - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Barclay, MD is a Emergency Medicine Physician provider in Charleston, SC (NPI 1548945017).
Provider details
- NPI number
- 1548945017
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- LL90160 (SC)
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
2 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
- 2023-06-21
- Last updated
- 2023-06-21
- Certified
- 2023-06-21
Frequently asked questions
- What is William Barclay's NPI number?
- William Barclay's National Provider Identifier (NPI) is 1548945017, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Barclay's specialty?
- William Barclay is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Barclay located?
- William Barclay's practice location on file with NPPES is 169 Ashley Ave # Msc300, Charleston, SC 29425-8905.
- What is William Barclay's phone number?
- The practice phone number listed in the NPPES registry for William Barclay is (843) 876-8023.
- Does William Barclay accept Medicare?
- William Barclay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Barclay's NPI active?
- Yes — William Barclay's NPI (1548945017) is active in the NPPES registry as of the last update on 2023-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.