CESAR A. JR. CHAN (M.D.) – Gastroenterology Physician, NPI 1679519797
Gastroenterology Physician
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Profile Insights
NPPES metrics only — not quality of care.
382 GASTROENTEROLOGY in WI
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Provider Addresses for CESAR A. JR. CHAN (M.D.)
Aurora Health Center, 3003, West Good Hope Road, Town & Country Manor, Glendale, Milwaukee County, Wisconsin, 53209, United States
MILWAUKEE, WI 532092042
Phone: (414) 352-3100
Type: Mailing
Aurora Health Center, N84W16889, Menomonee Avenue, Menomonee Falls, Waukesha County, Wisconsin, 53051, United States
MENOMONEE FALLS, WI 530512810
Phone: (262) 251-7500
Fax: (262) 251-7128
Type: Location
204 E 19TH ST
PANAMA CITY, FL 324054707
Phone: (850) 763-5409
Fax: (850) 763-4072
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 37 Open Payments records for all available years, with a total value of $672.
Total Amount is formed as General ($672) + Research ($0) + Ownership ($0) = $672.
Last reported payment date: 2024-12-11 • Largest payer in this snapshot: ABBVIE INC. ($425).
Total Amount
$672
General + Research + Ownership
Payments
37
Total payment records
General Amount
$672
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $425 |
| Ferring Pharmaceuticals Inc. | $115 |
| Ardelyx, Inc. | $19 |
| Gilead Sciences, Inc. | $18 |
| PFIZER 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: 2023-11-07
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 |
|---|---|---|---|---|
| I20050117000031 | I | Gastroenterology | WI | TBD |
| I20231107002054 | I | Gastroenterology | FL | 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 |
|---|---|---|---|---|
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 51 | 51 | $0 |
| G0105 | Colorectal cancer screening; colonoscopy on individual at high risk | 39 | 39 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 26 | 26 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 25 | 25 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 24 | 19 | $0 |
Insurance plans in this area (ZIP 53209)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GASTROENTEROLOGY | WI | 43235 | Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope | 13 | 13 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | FL | |
| G A S T R O E N T E R O L O G Y | FL | |
| Internal Medicine | FL | |
| Nurse Practitioner | FL | |
| Nurse Practitioner | FL | |
| - | AL | |
| P A T H O L O G Y | IL | |
| Gastroenterology, Internal Medicine | FL | |
| Nurse Practitioner | FL | |
| Physician Assistant | FL |
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