John Steiner, MD
NPI 1326155540 · Internal Medicine Physician · Oshkosh, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Steiner, MD is a Internal Medicine Physician provider in Oshkosh, WI (NPI 1326155540).
Provider details
- NPI number
- 1326155540
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 33573 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
215 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 105 | $101 |
| Initial Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 35 Minutes99305 | 68 | $124 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 17 | $101 |
| Initial Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 35 Minutes99305 | 13 | $124 |
| Nursing Facility Discharge Management, More Than 30 Minutes99316 | 12 | $122 |
Typical Medicare-allowed amounts for these services range $101–$124 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 176 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 443 | 86 |
| Gabapentin | 403 | 70 |
| Atorvastatin Calcium | 400 | 82 |
| Levothyroxine Sodium | 363 | 52 |
| Apixabanbrand: Eliquis | 340 | 35 |
| Pantoprazole Sodium | 260 | 60 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$402 across 2 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
Additional practice locations (1)
- 210 Wisconsin American DrFond Du Lac, WI 54935Phone: (920) 907-7000Fax: (920) 907-7012
Registry dates
- Enumerated
- 2006-08-24
- Last updated
- 2024-01-22
- Certified
- 2024-01-22
Frequently asked questions
- What is John Steiner's NPI number?
- John Steiner's National Provider Identifier (NPI) is 1326155540, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Steiner's specialty?
- John Steiner is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Steiner located?
- John Steiner's practice location on file with NPPES is 3151 Eden Ct, Oshkosh, WI 54904-6639.
- What is John Steiner's phone number?
- The practice phone number listed in the NPPES registry for John Steiner is (920) 651-4000.
- Does John Steiner accept Medicare?
- John Steiner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Steiner's NPI active?
- Yes — John Steiner's NPI (1326155540) is active in the NPPES registry as of the last update on 2024-01-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.