Jack Stewart MD Inc
NPI 1891202529 · Pulmonary Disease Physician · Orange, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jack Stewart MD Inc is a Pulmonary Disease Physician organization in Orange, CA (NPI 1891202529).
Provider details
- NPI number
- 1891202529
- Entity type
- Organization
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Jack Stewart, President(714) 361-6600
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
8 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
- 2018-01-03
- Last updated
- 2018-01-03
Frequently asked questions
- What is Jack Stewart MD Inc's NPI number?
- Jack Stewart MD Inc's National Provider Identifier (NPI) is 1891202529, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Jack Stewart MD Inc?
- Jack Stewart MD Inc is classified in the NPPES registry as Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Jack Stewart MD Inc located?
- Jack Stewart MD Inc's practice location on file with NPPES is 1010 W La Veta Ave Ste 750, Orange, CA 92868-4312.
- What is Jack Stewart MD Inc's phone number?
- The practice phone number listed in the NPPES registry for Jack Stewart MD Inc is (714) 361-6600.
- Does Jack Stewart MD Inc accept Medicare?
- Jack Stewart MD Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Jack Stewart MD Inc?
- The authorized official listed on Jack Stewart MD Inc's NPPES record is Jack Stewart, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Jack Stewart MD Inc's NPI active?
- Yes — Jack Stewart MD Inc's NPI (1891202529) is active in the NPPES registry as of the last update on 2018-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.