Jack C Leong MD Sc
NPI 1437357480 · Primary Care Clinic/Center · Chicago, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jack C Leong MD Sc is a Primary Care Clinic/Center organization in Chicago, IL (NPI 1437357480).
Provider details
- NPI number
- 1437357480
- Entity type
- Organization
- Primary specialty
- Primary Care Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Jack Leong, Medical Director(773) 282-3115
- License
- 036070436 (IL)
Specialties & taxonomies
Ambulatory Health Care Facilities
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
- 2007-07-10
- Last updated
- 2020-10-20
- Certified
- 2020-10-20
Frequently asked questions
- What is Jack C Leong MD Sc's NPI number?
- Jack C Leong MD Sc's National Provider Identifier (NPI) is 1437357480, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Jack C Leong MD Sc?
- Jack C Leong MD Sc is classified in the NPPES registry as Primary Care Clinic/Center (Ambulatory Health Care Facilities).
- Where is Jack C Leong MD Sc located?
- Jack C Leong MD Sc's practice location on file with NPPES is 3000 N Cicero Ave, Chicago, IL 60641-5106.
- What is Jack C Leong MD Sc's phone number?
- The practice phone number listed in the NPPES registry for Jack C Leong MD Sc is (773) 282-3115.
- Does Jack C Leong MD Sc accept Medicare?
- Jack C Leong MD Sc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Jack C Leong MD Sc?
- The authorized official listed on Jack C Leong MD Sc's NPPES record is Jack Leong, Medical Director. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Jack C Leong MD Sc's NPI active?
- Yes — Jack C Leong MD Sc's NPI (1437357480) is active in the NPPES registry as of the last update on 2020-10-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.