Guillermo A. Young, MD Inc
NPI 1033751540 · Pediatric Cardiology Physician · Los Angeles, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Guillermo A. Young, MD Inc is a Pediatric Cardiology Physician organization in Los Angeles, CA (NPI 1033751540).
Provider details
- NPI number
- 1033751540
- Entity type
- Organization
- Primary specialty
- Pediatric Cardiology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Maria Young, Manager(323) 953-9926
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
6 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
- 2019-10-16
- Last updated
- 2019-10-16
Frequently asked questions
- What is Guillermo A. Young, MD Inc's NPI number?
- Guillermo A. Young, MD Inc's National Provider Identifier (NPI) is 1033751540, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Guillermo A. Young, MD Inc?
- Guillermo A. Young, MD Inc is classified in the NPPES registry as Pediatric Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Guillermo A. Young, MD Inc located?
- Guillermo A. Young, MD Inc's practice location on file with NPPES is 1300 N Vermont Ave Ste 402, Los Angeles, CA 90027-6086.
- What is Guillermo A. Young, MD Inc's phone number?
- The practice phone number listed in the NPPES registry for Guillermo A. Young, MD Inc is (323) 953-9926.
- Does Guillermo A. Young, MD Inc accept Medicare?
- Guillermo A. Young, 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 Guillermo A. Young, MD Inc?
- The authorized official listed on Guillermo A. Young, MD Inc's NPPES record is Maria Young, Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Guillermo A. Young, MD Inc's NPI active?
- Yes — Guillermo A. Young, MD Inc's NPI (1033751540) is active in the NPPES registry as of the last update on 2019-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.