Kyu Kwak, MD
NPI 1962550863 · Obstetrics & Gynecology Physician · Fontana, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kyu Kwak, MD is a Obstetrics & Gynecology Physician provider in Fontana, CA (NPI 1962550863).
Provider details
- NPI number
- 1962550863
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A33473 (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
19 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
- 2007-01-08
- Last updated
- 2021-11-22
Frequently asked questions
- What is Kyu Kwak's NPI number?
- Kyu Kwak's National Provider Identifier (NPI) is 1962550863, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kyu Kwak's specialty?
- Kyu Kwak is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Kyu Kwak located?
- Kyu Kwak's practice location on file with NPPES is 9961 Sierra Ave, Fontana, CA 92335-6720.
- What is Kyu Kwak's phone number?
- The practice phone number listed in the NPPES registry for Kyu Kwak is (909) 427-3910.
- Does Kyu Kwak accept Medicare?
- Kyu Kwak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kyu Kwak's NPI active?
- Yes — Kyu Kwak's NPI (1962550863) is active in the NPPES registry as of the last update on 2021-11-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.