NADIIA MARENYCH (MD) – Endocrinology, Diabetes & Metabolism Physician, NPI 1235668831
Endocrinology, Diabetes & Metabolism Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
455 ENDOCRINOLOGY in IL
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Provider Addresses for NADIIA MARENYCH (MD)
PO BOX 735044
CHICAGO, IL 606735044
Phone: (800) 326-2250
Type: Mailing
West Medical Center Drive, McHenry, McHenry County, Illinois, 60050, United States
MCHENRY, IL 600508419
Phone:
Type: Mailing
146 E GENEVA SQ
LAKE GENEVA, WI 531479694
Phone: (262) 249-5000
Type: Location
3301 W FOREST HOME AVE
MILWAUKEE, WI 532152843
Phone:
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 14 Open Payments records for all available years, with a total value of $256.
Total Amount is formed as General ($256) + Research ($0) + Ownership ($0) = $256.
Last reported payment date: 2024-11-23 • Largest payer in this snapshot: Abbott Laboratories ($113).
Total Amount
$256
General + Research + Ownership
Payments
14
Total payment records
General Amount
$256
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Abbott Laboratories | $113 |
| Xeris Pharmaceuticals, Inc. | $53 |
| Medtronic, Inc. | $43 |
| Alexion Pharmaceuticals, Inc. | $30 |
| Amgen Inc. | $17 |
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: 2022-11-21
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20210120002748 | I | Hospitalist | IL | TBD |
| I20221121002959 | I | Endocrinology | WI | 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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 268 | 134 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 105 | 105 | $0 |
| 95251 | Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 36 | 27 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 18 | 16 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 16 | 16 | $0 |
Insurance plans in this area (ZIP 60673)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | WI | |
| Family Practice | WI | |
| Family Practice | WI | |
| Geriatric Medicine, Internal Medicine | WI | |
| - | WI | |
| - | WI | |
| - | IL | |
| Family Practice | WI | |
| - | OH | |
| - | WI |
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