Robert E. Sonnenburg Jr, M.D.
NPI 1972588176ActiveIndividual· Otolaryngology· Green Bay, WI
Otolaryngology (M.D.) in Green Bay, Wisconsin, trained at Medical College of Wisconsin (class of 2000). 135 Medicare patients in 2024, $41,501 paid; nearly all of their 343 Part D prescriptions were generic (97%). Inspire Medical Systems, Inc. was the largest of 2 companies reporting payments in 2025, $244.41 in all, mostly food and beverage.
Overview
| NPI | 1972588176 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 9, 2005 |
| Last updated in NPPES | Oct 29, 2026 |
| Certified by provider | Oct 29, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Otolaryngology Primary | 207Y00000X | 47907020 | WI |
| Otolaryngology, Sleep Medicine | 207YS0012X | 47907020 | WI |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Otolaryngology (IL); Practitioner - Otolaryngology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 135 |
|---|---|
| Services billed | 376 across 54 procedure codes |
| Paid by Medicare | $41,501 |
Part D prescriptions in 2024
| Prescriptions (claims) | 343 · 458 30-day fills |
|---|---|
| Patients | 131 |
| Total drug cost | $6,152 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Otolaryngology |
| Secondary specialties | Allergy/Immunology |
Medical group
- Baycare Clinic LLPGreen Bay, WI · 200 clinicians
Hospital affiliations
- Aurora Baycare Medical CtrGreen Bay, WI
- Aurora Medical Center Bay AreaMarinette, WI
- Aurora Medical Ctr Manitowoc CountyTwo Rivers, WI
Industry payments (Open Payments)
- 2025$244.41 · 7 payments from 2 companies
- 2024$270.60 · 10 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Inspire Medical Systems, Inc. | $223.49 | 6 |
| Aerin Medical Inc. | $20.92 | 1 |
What the 2025 payments were for
- Food and Beverage$244.41 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 16 otolaryngologists in Green Bay · All otolaryngologists in Wisconsin