Justin Kwak, M.D.
NPI 1700033628 · Pediatrics Physician · Rockford, IL
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Justin Kwak, M.D. is a Pediatrics Physician provider in Rockford, IL (NPI 1700033628).
Provider details
- NPI number
- 1700033628
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036.120211 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
- 2008-08-21
- Last updated
- 2014-08-27
Frequently asked questions
- What is Justin Kwak's NPI number?
- Justin Kwak's National Provider Identifier (NPI) is 1700033628, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Justin Kwak's specialty?
- Justin Kwak is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Justin Kwak located?
- Justin Kwak's practice location on file with NPPES is 2400 N Rockton Ave, Rockford, IL 61103-3655.
- What is Justin Kwak's phone number?
- The practice phone number listed in the NPPES registry for Justin Kwak is (815) 971-5000.
- Does Justin Kwak accept Medicare?
- Justin Kwak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Justin Kwak's NPI active?
- Yes — Justin Kwak's NPI (1700033628) is active in the NPPES registry as of the last update on 2014-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.