IAN ROSLAWSKI DO
NPI 1477058949
Family Medicine - Adult Medicine in Saint Louis, MO
About Ian Roslawski Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
IAN ROSLAWSKI DO (NPI 1477058949) is an individual adult medicine provider in Saint Louis, Missouri, licensed in Missouri (2024045914) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and maintains a secondary practice location in Maxwell Afb.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ian Roslawski Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
7Medicare enrollment records show Ian Roslawski reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63128
- Reassigned Medicare billing, Missouri enrollment
- Medicare enrollment name: St Anthonys Physician Organization Hospitalist Services Lc
- 340 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 326 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 435 clinicians in this Medicare group
Festus, MO 63028
- Reassigned Medicare billing, Missouri enrollment
- 299 clinicians in this Medicare group
Washington, MO 63090
- Reassigned Medicare billing, Missouri enrollment
- 261 clinicians in this Medicare group
Athens, AL 35611
- Reassigned Medicare billing, Alabama enrollment
- 660 clinicians in this Medicare group
Monroe, GA 30655
- Reassigned Medicare billing, Alabama enrollment
- 428 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Hospital St Louis
Acute Care Hospitals · Saint Louis, MOMercy Hospital Jefferson
Acute Care Hospitals · Festus, MOBarnes Jewish Hospital
Acute Care Hospitals · Saint Louis, MOMercy Hospital South
Acute Care Hospitals · Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63128 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS, MO 63128
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Ian Roslawski's NPI number?
The NPI number for Ian Roslawski is 1477058949. It was assigned to this individual provider in the NPPES registry on March 27, 2018.
Where is Ian Roslawski located?
Ian Roslawski practices at 10010 Kennerly Rd, Saint Louis, MO 63128. The listed phone number is (314) 525-1000.
What is Ian Roslawski's specialty?
The primary specialty registered for this NPI is Family Medicine, specializing in Adult Medicine, with taxonomy code 207QA0505X.
Is Ian Roslawski enrolled in Medicare?
Yes. Ian Roslawski is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Ian Roslawski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ian Roslawski reassigns Medicare benefits to 7 organizations: St Anthonys Physician Organization Hospitalist Services, L.C. (Saint Louis, MO), Mercy Clinic Adult Hospitalists - St. Louis, LLC (Saint Louis, MO), Mercy Hospitals East Communities (Saint Louis, MO), Mercy Clinic Adult Hospitalists- Jefferson, LLC (Festus, MO), Mercy Clinic Adult Hospitalists - Washington, LLC (Washington, MO) and 2 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ian Roslawski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ian Roslawski accept?
Health plans from Anthem Blue Cross and Blue Shield list Ian Roslawski as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Ian Roslawski affiliated with any hospitals?
According to CMS data, Ian Roslawski is affiliated with Mercy Hospital St Louis, Mercy Hospital Jefferson, Barnes Jewish Hospital and Mercy Hospital South.
When was this NPI record last updated?
The NPPES record for Ian Roslawski was last updated on April 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Ian Roslawski, DO · NPI 1477058949
Adult Medicine physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since March 27, 2018.
## Identity
- **NPI:** 1477058949 (Entity type: Individual)
- **Enumerated:** March 27, 2018
- **Primary specialty:** Family Medicine - Adult Medicine · taxonomy 207QA0505X
- **State license:** 2024045914 (Missouri)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 10010 KENNERLY RD, Saint Louis, MO 63128-2106
- **Phone:** (314) 525-1000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 7 organizations under Medicare reassignment (form CMS-855R): St Anthonys Physician Organization Hospitalist Services, L.C. (NPI 1407216336, Saint Louis, MO); Mercy Clinic Adult Hospitalists - St. Louis, LLC (NPI 1841235108, Saint Louis, MO); Mercy Hospitals East Communities (NPI 1851431738, Saint Louis, MO); Mercy Clinic Adult Hospitalists- Jefferson, LLC (NPI 1083052492, Festus, MO); Mercy Clinic Adult Hospitalists - Washington, LLC (NPI 1891943429, Washington, MO); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** At Still University Of Health Sciences, College Of Osteo Med, Kirksville, class of 2018
## Record status
- **NPPES last updated:** April 9, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1477058949) · Data from the CMS NPPES public registry.