DR. AARTHI VIJAYKUMAR (M.D.) – Nephrology Physician, NPI 1821215856
Nephrology Physician
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Profile Insights
NPPES metrics only — not quality of care.
629 NEPHROLOGY in IL
Provider Addresses for DR. AARTHI VIJAYKUMAR (M.D.)
120 W 22ND ST
OAK BROOK, IL 605231557
Phone: (630) 573-5000
Type: Mailing
1710 N RANDALL RD STE 330
ELGIN, IL 601239405
Phone: (847) 531-5911
Fax: (847) 531-5922
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 25 Open Payments records for all available years, with a total value of $758.
Total Amount is formed as General ($758) + Research ($0) + Ownership ($0) = $758.
Last reported payment date: 2024-10-30 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($174).
Total Amount
$758
General + Research + Ownership
Payments
25
Total payment records
General Amount
$758
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-10-30
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2007-09-27
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 |
|---|---|---|---|---|
| I20070927000489 | I | Nephrology | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 415 | 171 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 388 | 147 | $0 |
| 99490 | Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 272 | 37 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 222 | 125 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 146 | 126 | $0 |
Insurance plans in this area (ZIP 60523)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| NEPHROLOGY | IL | 90961 | Dialysis services (2-3 physician visits per month), patient 20 years of age and older | 34 | 21 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nephrology, Internal Medicine | IL | |
| Nephrology, Internal Medicine | IL | |
| Nephrology, Internal Medicine | IL | |
| - | IN | |
| N E P H R O L O G Y | IL | |
| N E P H R O L O G Y | IL | |
| Nephrology, Internal Medicine | IL | |
| N E P H R O L O G Y | IL | |
| N E P H R O L O G Y | IL | |
| - | IL |
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