William Fox, MD
NPI 1588075634 · Emergency Medicine Physician · Washington, DC
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Fox, MD is a Emergency Medicine Physician provider in Washington, DC (NPI 1588075634).
Provider details
- NPI number
- 1588075634
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD600004278 (DC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
12 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$19 across 1 record (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
Registry dates
- Enumerated
- 2014-05-12
- Last updated
- 2026-01-15
- Certified
- 2026-01-15
Frequently asked questions
- What is William Fox's NPI number?
- William Fox's National Provider Identifier (NPI) is 1588075634, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Fox's specialty?
- William Fox is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Fox located?
- William Fox's practice location on file with NPPES is 2401 E St., Nw, Washington, DC 20037.
- What is William Fox's phone number?
- The practice phone number listed in the NPPES registry for William Fox is (202) 647-4000.
- Does William Fox accept Medicare?
- William Fox is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Fox's NPI active?
- Yes — William Fox's NPI (1588075634) is active in the NPPES registry as of the last update on 2026-01-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.