Matthew Johnson, M.D.
NPI 1043598741 · Hospitalist Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Johnson, M.D. is a Hospitalist Physician provider in Los Angeles, CA (NPI 1043598741).
Provider details
- NPI number
- 1043598741
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A117704 (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
14 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
- 2011-07-28
- Last updated
- 2023-11-27
- Certified
- 2020-09-08
Frequently asked questions
- What is Matthew Johnson's NPI number?
- Matthew Johnson's National Provider Identifier (NPI) is 1043598741, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Johnson's specialty?
- Matthew Johnson is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Johnson located?
- Matthew Johnson's practice location on file with NPPES is 1500 San Pablo St, Los Angeles, CA 90033-5313.
- What is Matthew Johnson's phone number?
- The practice phone number listed in the NPPES registry for Matthew Johnson is (323) 442-5100.
- Does Matthew Johnson accept Medicare?
- Matthew Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Johnson's NPI active?
- Yes — Matthew Johnson's NPI (1043598741) is active in the NPPES registry as of the last update on 2023-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.