Steven Vonfrolio, M.D.
NPI 1851736268 · Hospitalist Physician · Evansville, IN
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Vonfrolio, M.D. is a Hospitalist Physician provider in Evansville, IN (NPI 1851736268).
Provider details
- NPI number
- 1851736268
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 01076575A (IN)
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
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
843 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 Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 337 | $72 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 312 | $109 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 113 | $104 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 70 | $158 |
| Critical Care, First 30-74 Minutes99291 | 11 | $195 |
Typical Medicare-allowed amounts for these services range $72–$195 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 37 | 15 |
| Amlodipine Besylate | 31 | 18 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 31 | — |
| Metoprolol Succinate | 26 | 15 |
| Apixabanbrand: Eliquis | 22 | 12 |
| Atorvastatin Calcium | 21 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$108 across 5 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
- 2013-04-30
- Last updated
- 2016-07-09
Frequently asked questions
- What is Steven Vonfrolio's NPI number?
- Steven Vonfrolio's National Provider Identifier (NPI) is 1851736268, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Vonfrolio's specialty?
- Steven Vonfrolio is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Vonfrolio located?
- Steven Vonfrolio's practice location on file with NPPES is 600 Mary St, Evansville, IN 47710-1674.
- What is Steven Vonfrolio's phone number?
- The practice phone number listed in the NPPES registry for Steven Vonfrolio is (812) 450-7338.
- Does Steven Vonfrolio accept Medicare?
- Steven Vonfrolio is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Vonfrolio's NPI active?
- Yes — Steven Vonfrolio's NPI (1851736268) is active in the NPPES registry as of the last update on 2016-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.