GRANT D SIEVERTSEN (MD) – Endocrinology, Diabetes & Metabolism Physician, NPI 1134197619
Endocrinology, Diabetes & Metabolism Physician
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Profile Insights
NPPES metrics only — not quality of care.
8,828 INTERNAL MEDICINE in IL
Provider Addresses for GRANT D SIEVERTSEN (MD)
1860 PAYSPHERE CIR
CHICAGO, IL 606740018
Phone: (630) 469-9200
Type: Mailing
40 S CLAY ST STE 210E
HINSDALE, IL 605213287
Phone: (630) 323-3540
Type: Location
PO BOX 713260
CHICAGO, IL 606771260
Phone: (630) 469-9200
Type: Mailing
908, North Elm Street, Fullersburg, Hinsdale, DuPage County, Illinois, 60521, United States
STE 301
HINSDALE, IL 605213635
Phone: (630) 323-3540
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 8 Open Payments records for all available years, with a total value of $178.
Total Amount is formed as General ($178) + Research ($0) + Ownership ($0) = $178.
Last reported payment date: 2024-10-10 • Largest payer in this snapshot: Exact Sciences Corporation ($71).
Total Amount
$178
General + Research + Ownership
Payments
8
Total payment records
General Amount
$178
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-10
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Exact Sciences Corporation | $71 |
| ABBVIE INC. | $26 |
| PFIZER INC. | $23 |
| GlaxoSmithKline, LLC. | $22 |
| Lilly USA, LLC | $18 |
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: 2004-01-27
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
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 |
|---|---|---|---|---|
| I20040127000110 | I | Internal Medicine | IL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
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 | 2,460 | 24 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 1,386 | 655 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 1,057 | 563 | $0 |
| 84443 | Blood test, thyroid stimulating hormone (tsh) | 878 | 528 | $0 |
| 80053 | Blood test, comprehensive group of blood chemicals | 868 | 513 | $0 |
Insurance plans in this area (ZIP 60674)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | IL | 83036 | Hemoglobin A1C level | 545 | 268 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| E N D O C R I N O L O G Y | IL | |
| Physician Assistant | IL | |
| Internal Medicine | IL | |
| Nurse Practitioner | IL | |
| - | IL | |
| - | IL | |
| - | IL | |
| - | IL | |
| - | IL | |
| Physical Therapist In Private Practice | IL |
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