Paul Nasilowski, M.D
NPI 1386740363 · Geriatric Medicine (Internal Medicine) Physician · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Paul Nasilowski, M.D is a Geriatric Medicine (Internal Medicine) Physician provider in Chicago, IL (NPI 1386740363).
Provider details
- NPI number
- 1386740363
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (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 tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
83% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 115 | 32 |
| Metformin Hcl | 69 | 19 |
| Amlodipine Besylate | 69 | 21 |
| Lisinopril | 58 | 13 |
| Metoprolol Succinate | 57 | 17 |
| Lisinopril/Hydrochlorothiazidebrand: Lisinopril-Hydrochlorothiazide | 42 | 12 |
| Simvastatin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$156 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
- 2006-09-16
- Last updated
- 2007-07-08
Frequently asked questions
- What is Paul Nasilowski's NPI number?
- Paul Nasilowski's National Provider Identifier (NPI) is 1386740363, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Paul Nasilowski's specialty?
- Paul Nasilowski is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Paul Nasilowski located?
- Paul Nasilowski's practice location on file with NPPES is 1634 W Polk St, Chicago, IL 60612-4352.
- What is Paul Nasilowski's phone number?
- The practice phone number listed in the NPPES registry for Paul Nasilowski is (312) 829-4224.
- Does Paul Nasilowski accept Medicare?
- Paul Nasilowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Paul Nasilowski's NPI active?
- Yes — Paul Nasilowski's NPI (1386740363) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.