James Sliwa, DO
NPI 1437166063 · Physical Medicine & Rehabilitation Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
James Sliwa, DO is a Physical Medicine & Rehabilitation Physician provider in Chicago, IL (NPI 1437166063).
Provider details
- NPI number
- 1437166063
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 036-062666 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
89 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 51 | $39 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 38 | $91 |
Typical Medicare-allowed amounts for these services range $39–$91 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-03
- Last updated
- 2022-06-24
- Certified
- 2022-06-24
Frequently asked questions
- What is James Sliwa's NPI number?
- James Sliwa's National Provider Identifier (NPI) is 1437166063, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Sliwa's specialty?
- James Sliwa is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is James Sliwa located?
- James Sliwa's practice location on file with NPPES is 355 E Erie St, Chicago, IL 60611-3167.
- What is James Sliwa's phone number?
- The practice phone number listed in the NPPES registry for James Sliwa is (312) 238-1000.
- Does James Sliwa accept Medicare?
- James Sliwa is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is James Sliwa's NPI active?
- Yes — James Sliwa's NPI (1437166063) is active in the NPPES registry as of the last update on 2022-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.