John Hwang
NPI 1053998823 · Pediatrics Physician · San Francisco, CA
Enrolled with Medicare as Order and Referring Only - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Hwang is a Pediatrics Physician provider in San Francisco, CA (NPI 1053998823).
Provider details
- NPI number
- 1053998823
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A193983 (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
5 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
- 2021-03-26
- Last updated
- 2024-09-17
- Certified
- 2024-09-17
Frequently asked questions
- What is John Hwang's NPI number?
- John Hwang's National Provider Identifier (NPI) is 1053998823, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Hwang's specialty?
- John Hwang is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is John Hwang located?
- John Hwang's practice location on file with NPPES is 550 16th St., San Francisco, CA 94143.
- What is John Hwang's phone number?
- The practice phone number listed in the NPPES registry for John Hwang is (949) 241-4062.
- Does John Hwang accept Medicare?
- John Hwang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Hwang's NPI active?
- Yes — John Hwang's NPI (1053998823) is active in the NPPES registry as of the last update on 2024-09-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.