Xa Johnson, M.D.
NPI 1093920084 · Critical Care Medicine (Anesthesiology) Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Xa Johnson, M.D. is a Critical Care Medicine (Anesthesiology) Physician provider in Oakland, CA (NPI 1093920084).
Provider details
- NPI number
- 1093920084
- Entity type
- Individual
- Primary specialty
- Critical Care Medicine (Anesthesiology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A98000 (CA)
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 tenure38% of score
19 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
- 2007-05-11
- Last updated
- 2021-12-15
Frequently asked questions
- What is Xa Johnson's NPI number?
- Xa Johnson's National Provider Identifier (NPI) is 1093920084, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Xa Johnson's specialty?
- Xa Johnson is listed in the NPPES registry with a primary specialty of Critical Care Medicine (Anesthesiology) Physician (Allopathic & Osteopathic Physicians).
- Where is Xa Johnson located?
- Xa Johnson's practice location on file with NPPES is 275 W Macarthur Blvd, Oakland, CA 94611-5641.
- What is Xa Johnson's phone number?
- The practice phone number listed in the NPPES registry for Xa Johnson is (510) 752-6238.
- Does Xa Johnson accept Medicare?
- Xa Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Xa Johnson's NPI active?
- Yes — Xa Johnson's NPI (1093920084) is active in the NPPES registry as of the last update on 2021-12-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.