ERIC A. JOHNSON (M.D.) – Gastroenterology Physician, NPI 1245276534
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
382 GASTROENTEROLOGY in WI
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Provider Addresses for ERIC A. JOHNSON (M.D.)
GI Associates, 411, Westwood Drive, Wausau, Marathon County, Wisconsin, 54401, United States
WAUSAU, WI 544014152
Phone: (715) 847-2558
Fax: (714) 847-2462
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 6 Open Payments records for all available years, with a total value of $255.
Total Amount is formed as General ($255) + Research ($0) + Ownership ($0) = $255.
Last reported payment date: 2024-11-08 • Largest payer in this snapshot: Boston Scientific Corporation ($239).
Total Amount
$255
General + Research + Ownership
Payments
6
Total payment records
General Amount
$255
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-08
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Boston Scientific Corporation | $239 |
| NESTLE HEALTHCARE NUTRITION INC. | $16 |
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: 2009-01-28
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 |
|---|---|---|---|---|
| I20090128000430 | I | Gastroenterology | 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 |
|---|---|---|---|---|
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 87 | 85 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 67 | 67 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 25 | 25 | $0 |
| 43237 | Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope through mouth | 25 | 24 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 20 | 20 | $0 |
Insurance plans in this area (ZIP 54401)
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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 | 22 | 22 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Certified Registered Nurse Anesthetist (Crna) | WI | |
| Certified Registered Nurse Anesthetist (Crna) | WI | |
| G A S T R O E N T E R O L O G Y | WI | |
| P A T H O L O G Y | WI | |
| Certified Registered Nurse Anesthetist (Crna) | WI | |
| Certified Registered Nurse Anesthetist (Crna) | FL | |
| Certified Registered Nurse Anesthetist (Crna) | WI | |
| G A S T R O E N T E R O L O G Y | WI | |
| G A S T R O E N T E R O L O G Y | WI | |
| Nurse Practitioner | WI |
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