John-Charles Loo
NPI 1619972700 · Pediatric Cardiology Physician · Long Beach, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John-Charles Loo is a Pediatric Cardiology Physician provider in Long Beach, CA (NPI 1619972700).
Provider details
- NPI number
- 1619972700
- Entity type
- Individual
- Primary specialty
- Pediatric Cardiology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A67200 (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
21 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
- 2005-06-16
- Last updated
- 2021-12-03
Frequently asked questions
- What is John-Charles Loo's NPI number?
- John-Charles Loo's National Provider Identifier (NPI) is 1619972700, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John-Charles Loo's specialty?
- John-Charles Loo is listed in the NPPES registry with a primary specialty of Pediatric Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is John-Charles Loo located?
- John-Charles Loo's practice location on file with NPPES is 2801 Atlantic Ave, Long Beach, CA 90806-1701.
- What is John-Charles Loo's phone number?
- The practice phone number listed in the NPPES registry for John-Charles Loo is (562) 933-3350.
- Does John-Charles Loo accept Medicare?
- John-Charles Loo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John-Charles Loo's NPI active?
- Yes — John-Charles Loo's NPI (1619972700) is active in the NPPES registry as of the last update on 2021-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.