DC Johnson & Co
NPI 1538392097 · Internal Medicine Physician · Studio City, CA
DC Johnson & Co is a Internal Medicine Physician organization in Studio City, CA (NPI 1538392097).
Provider details
- NPI number
- 1538392097
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Thomas Ma, Ceo(818) 300-2389
- License
- G60303 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
- 2009-09-01
- Last updated
- 2009-09-01
Frequently asked questions
- What is DC Johnson & Co's NPI number?
- DC Johnson & Co's National Provider Identifier (NPI) is 1538392097, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is DC Johnson & Co?
- DC Johnson & Co is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is DC Johnson & Co located?
- DC Johnson & Co's practice location on file with NPPES is 3940 Laurel Canyon Blvd, Studio City, CA 91604-3709.
- What is DC Johnson & Co's phone number?
- The practice phone number listed in the NPPES registry for DC Johnson & Co is (818) 300-2389.
- Who is the authorized official for DC Johnson & Co?
- The authorized official listed on DC Johnson & Co's NPPES record is Thomas Ma, Ceo. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is DC Johnson & Co's NPI active?
- Yes — DC Johnson & Co's NPI (1538392097) is active in the NPPES registry as of the last update on 2009-09-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.