William Thomas, RN
NPI 1548158785 · Critical Care Medicine Registered Nurse · Arlington, VA
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Thomas, RN is a Critical Care Medicine Registered Nurse provider in Arlington, VA (NPI 1548158785).
Provider details
- NPI number
- 1548158785
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Male
- Sole proprietor
- No
- License
- 0001283415 (VA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
- 2025-06-26
- Last updated
- 2025-06-26
- Certified
- 2025-06-26
Frequently asked questions
- What is William Thomas's NPI number?
- William Thomas's National Provider Identifier (NPI) is 1548158785, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Thomas's specialty?
- William Thomas is listed in the NPPES registry with a primary specialty of Critical Care Medicine Registered Nurse (Nursing Service Providers).
- Where is William Thomas located?
- William Thomas's practice location on file with NPPES is 1701 N George Mason Dr Ste 2d, Arlington, VA 22205-3610.
- What is William Thomas's phone number?
- The practice phone number listed in the NPPES registry for William Thomas is (703) 558-2438.
- Does William Thomas accept Medicare?
- William Thomas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Thomas's NPI active?
- Yes — William Thomas's NPI (1548158785) is active in the NPPES registry as of the last update on 2025-06-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.