William Mccallum, MD
NPI 1831658806 · Emergency Medicine Physician · Travis Afb, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Mccallum, MD is a Emergency Medicine Physician provider in Travis Afb, CA (NPI 1831658806).
Provider details
- NPI number
- 1831658806
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 178163 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Military Health Care Provider171000000X
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
- 2019-03-18
- Last updated
- 2024-05-01
- Certified
- 2024-05-01
Frequently asked questions
- What is William Mccallum's NPI number?
- William Mccallum's National Provider Identifier (NPI) is 1831658806, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Mccallum's specialty?
- William Mccallum is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Mccallum located?
- William Mccallum's practice location on file with NPPES is 60 Mdg/Sgge, Travis Afb, CA 94535-1800.
- What is William Mccallum's phone number?
- The practice phone number listed in the NPPES registry for William Mccallum is (707) 423-3825.
- Does William Mccallum accept Medicare?
- William Mccallum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Mccallum's NPI active?
- Yes — William Mccallum's NPI (1831658806) is active in the NPPES registry as of the last update on 2024-05-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.