Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Jong Lak Jin, MD

Individual provider Family Medicine Physician · NPI 1225062912

Jong Lak Jin, MD practises Internal Medicine in Chicago, Illinois. Qualified in 1978, 48 years ago. Practices with Prime Medical Associates Ltd, a 2-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
48
Licensed in
IL
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3414 W Peterson Ave Ste A
Chicago, IL 60659 Not confirmed with CMS for 19 years — call before visiting
Phone: (773) 478-1777
Fax: (773) 478-1964
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X (IL)

Record details

NPI number1225062912
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 10, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1978 (48 years in practice)
Group practice Prime Medical Associates Ltd — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations9 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients360
Services billed 3,070 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Prime Medical Associates Ltd

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

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