Michael Oldenburg, MD
NPI 1770847683 · Otolaryngology Physician · Green Bay, WI
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Oldenburg, MD is a Otolaryngology Physician provider in Green Bay, WI (NPI 1770847683).
Provider details
- NPI number
- 1770847683
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 56672 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
13 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
269 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 101 | $89 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 49 | $162 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 44 | $108 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 32 | $125 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 32 | $125 |
| Insertion of Cochlear Device69930 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 48 | 47 |
| Ipratropium Bromide | 43 | — |
| Prednisone | 26 | 23 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 22 | 21 |
| Ciprofloxacin Hcl/Dexamethbrand: Ciprofloxacin-Dexamethasone | 14 | 11 |
| Ofloxacin | 13 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$202 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-06-26
- Last updated
- 2024-02-05
- Certified
- 2024-02-05
Frequently asked questions
- What is Michael Oldenburg's NPI number?
- Michael Oldenburg's National Provider Identifier (NPI) is 1770847683, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Oldenburg's specialty?
- Michael Oldenburg is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Oldenburg located?
- Michael Oldenburg's practice location on file with NPPES is 1860 Shawano Ave, Green Bay, WI 54303-2667.
- What is Michael Oldenburg's phone number?
- The practice phone number listed in the NPPES registry for Michael Oldenburg is (920) 496-4700.
- Does Michael Oldenburg accept Medicare?
- Michael Oldenburg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Oldenburg's NPI active?
- Yes — Michael Oldenburg's NPI (1770847683) is active in the NPPES registry as of the last update on 2024-02-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.