DR. YOOJIN KIM PAK (M.D.) – Endocrinology, Diabetes & Metabolism Physician, NPI 1003072877
Endocrinology, Diabetes & Metabolism Physician
Main info
Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
455 ENDOCRINOLOGY in IL
Provider Addresses for DR. YOOJIN KIM PAK (M.D.)
430 WARRENVILLE RD # 310
LISLE, IL 605321348
Phone: (630) 789-4910
Fax: (630) 432-6744
Type: Location
1860 PAYSPHERE CIR
CHICAGO, IL 606740018
Phone: (630) 789-4910
Type: Mailing
430, Pennsylvania Avenue, Glen Ellyn, DuPage County, Illinois, 60137, United States
320
GLEN ELLYN, IL 601374464
Phone: (630) 789-4910
Type: Location
PO BOX 713260
CHICAGO, IL 606771260
Phone: (630) 469-9200
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 27 Open Payments records for all available years, with a total value of $502.
Total Amount is formed as General ($502) + Research ($0) + Ownership ($0) = $502.
Last reported payment date: 2024-12-26 • Largest payer in this snapshot: Novo Nordisk Inc ($176).
Total Amount
$502
General + Research + Ownership
Payments
27
Total payment records
General Amount
$502
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-26
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novo Nordisk Inc | $176 |
| Abbott Laboratories | $74 |
| Insulet Corporation | $58 |
| Xeris Pharmaceuticals, Inc. | $58 |
| BETA BIONICS, INC. | $33 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2013-08-09
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Past revalidation due date
Earliest CMS due date was 2023-08-31 (1010 days ago).
Enrollment records
1
Earliest due date
2023-08-31
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20130809000155 | I | Endocrinology | IL | 2023-08-31 |
What to do next
- Verify current status on the CMS Revalidation Lookup Tool immediately.
- Complete revalidation in PECOS or contact your Medicare Administrative Contractor (MAC).
- Overdue revalidation can lead to deactivation of Medicare billing privileges.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| J0897 | Injection, denosumab, 1 mg | 4,020 | 38 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 518 | 355 | $0 |
| 83036 | Hemoglobin a1c level | 368 | 216 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 348 | 254 | $0 |
| 84443 | Blood test, thyroid stimulating hormone (tsh) | 316 | 234 | $0 |
Insurance plans in this area (ZIP 60532)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ENDOCRINOLOGY | IL | 83036 | Hemoglobin A1C level | 212 | 104 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Radiation Oncology | IL | |
| Internal Medicine | IL | |
| G A S T R O E N T E R O L O G Y | IL | |
| Physical Therapist In Private Practice | IL | |
| Physical Therapist In Private Practice | IL | |
| Family Practice | IL | |
| P S Y C H I A T R Y | IL | |
| Physician Assistant | IL | |
| Family Practice | IL | |
| Geriatric Medicine | IL |
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