RAJEEV NAYAR (MD) – Gastroenterology Physician, NPI 1346217023
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
978 GASTROENTEROLOGY in IL
Provider Addresses for RAJEEV NAYAR (MD)
800 N Westmoreland Rd Ste 100
Lake Forest, IL 600451671
Phone: (847) 535-6083
Fax: (847) 234-4336
Type: Location
3033 S 27TH ST STE 202
MILWAUKEE, WI 532153600
Phone: (414) 908-6601
Fax: (414) 385-2980
Type: Mailing
River Parkway, Wauwatosa, Milwaukee County, Wisconsin, 53213, United States
SUITE 1030
MILWAUKEE, WI 532153669
Phone: (414) 908-6500
Fax: (414) 385-2980
Type: Location
South 27th Street, Wilson Park, Milwaukee, Milwaukee County, Wisconsin, 53154, United States
SUITE 202
MILWAUKEE, WI 532153600
Phone: (414) 908-6601
Fax: (414) 385-2980
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2013-06-12
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20130612000249 | I | Gastroenterology | 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 |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 519 | 146 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 179 | 173 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 135 | 113 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 81 | 80 | $0 |
| G0105 | Colorectal cancer screening; colonoscopy on individual at high risk | 49 | 49 | $0 |
Insurance plans in this area (ZIP 60045)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | IL | |
| Diagnostic Radiology, Interventional Radiology | IL | |
| P A T H O L O G Y | IL | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology), Internal Medicine | IL | |
| G A S T R O E N T E R O L O G Y | IL | |
| Internal Medicine | IL | |
| Cardiac Electrophysiology, Cardiovascular Disease (Cardiology), Internal Medicine | MN | |
| - | IL | |
| A N E S T H E S I O L O G Y | MI | |
| Nurse Practitioner | IL |
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