Arthur Ostrowski, M.D.
NPI 1740257062 · Internal Medicine Physician · Barrington, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arthur Ostrowski, M.D. is a Internal Medicine Physician provider in Barrington, IL (NPI 1740257062).
Provider details
- NPI number
- 1740257062
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
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
20 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
478 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 187 | $132 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 93 | $183 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 55 | $133 |
| Limited Ultrasound Scan Behind Abdominal Cavity76775 | 54 | $61 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 41 | $15 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 69 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 238 | 70 |
| Lisinopril | 236 | 69 |
| Rosuvastatin Calcium | 180 | 51 |
| Pantoprazole Sodium | 122 | 37 |
| Levothyroxine Sodium | 107 | 26 |
| Amlodipine Besylate | 81 | 25 |
| Allopurinol |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,094 across 38 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
- 2006-03-06
- Last updated
- 2007-10-18
Frequently asked questions
- What is Arthur Ostrowski's NPI number?
- Arthur Ostrowski's National Provider Identifier (NPI) is 1740257062, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arthur Ostrowski's specialty?
- Arthur Ostrowski is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Arthur Ostrowski located?
- Arthur Ostrowski's practice location on file with NPPES is 800 Fox Gln, Barrington, IL 60010-6461.
- What is Arthur Ostrowski's phone number?
- The practice phone number listed in the NPPES registry for Arthur Ostrowski is (847) 382-5850.
- Does Arthur Ostrowski accept Medicare?
- Arthur Ostrowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arthur Ostrowski's NPI active?
- Yes — Arthur Ostrowski's NPI (1740257062) is active in the NPPES registry as of the last update on 2007-10-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.