Cathy Hwang, M.D.
NPI 1386843001 · Pediatrics Physician · Sylmar, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cathy Hwang, M.D. is a Pediatrics Physician provider in Sylmar, CA (NPI 1386843001).
Provider details
- NPI number
- 1386843001
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A108517 (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
18 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
- 2007-07-12
- Last updated
- 2021-10-16
- Certified
- 2021-10-16
Frequently asked questions
- What is Cathy Hwang's NPI number?
- Cathy Hwang's National Provider Identifier (NPI) is 1386843001, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cathy Hwang's specialty?
- Cathy Hwang is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Cathy Hwang located?
- Cathy Hwang's practice location on file with NPPES is 14445 Olive View Dr, Sylmar, CA 91342-1437.
- What is Cathy Hwang's phone number?
- The practice phone number listed in the NPPES registry for Cathy Hwang is (818) 364-3233.
- Does Cathy Hwang accept Medicare?
- Cathy Hwang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cathy Hwang's NPI active?
- Yes — Cathy Hwang's NPI (1386843001) is active in the NPPES registry as of the last update on 2021-10-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.