Active NPI
Mariusz Tomasz Koziol I, M.D.
- Obstetrics & Gynecology Physician
- Elk Grove Village, IL
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Obstetrics & Gynecology Physician
- License
- 036118758
- Practice address
- 810 Biesterfield Rd
Suite 306 - Wimmer Building
Elk Grove Village, IL 60007-3378 - Phone
- (847) 357-1144
- Fax
- (847) 357-9449
- NPI assigned
- May 22, 2007
- Last updated
- Nov 19, 2025
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Obstetrics & Gynecology Physician | 207V00000X | 036118758 | IL | Primary |
| Obstetrics & Gynecology Physician | 207V00000X | 036.118758 | IL |
Addresses
Primary practice location
810 Biesterfield Rd
Suite 306 - Wimmer Building
Elk Grove Village, IL 60007-3378
Mailing address
810 Biesterfield Rd Ste 306
Elk Grove Village, IL 60007-3311
Phone (847) 357-1144
Other practice location 1
1614 W Central Rd Ste 101
Arlington Heights, IL 60005-2452
Phone (847) 392-9191
Other identifiers 2
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 036118758-1 | Medicaid | IL | |
| 11790234 | Other | CAQH |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in IL
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Obstetrics/Gynecology
- Education
- Other, 1997
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
800 Biesterfield Rd
Suite 306
Elk Grove Village, IL 60007-3378
Phone (847) 357-1144
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 036.118758 | IL | MD | Obstetrics & Gynecology Physician |
| 036118758 | IL | MD | Obstetrics & Gynecology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Bonaventure Medical Foundation, LLC | Current | Accepting new patients | |
| Midwest OB/GYN & Midwifery | Obstetrics & Gynecology | Current | Accepting new patients |
| Endeavor Health Medical Group | Obstetrics & Gynecology | Current | Accepting new patients |
| Endeavor Health Medical Group | Current | Accepting new patients | |
| Northwest Community Women Services LLC | Obstetrics & Gynecology | Current | Accepting new patients |
| Northwest Community Healthcare | Past | Accepting new patients | |
| Northwest Health Care Associates | Past | Accepting new patients |
Locations
1614 W Central Rd
Ste 101
Arlington Heights, IL 60005
Phone (847) 392-9191
1051 W Rand Rd
Arlington Hts, IL 60004
Phone (847) 221-4601
1051 W Rand Rd
Ste 101
Arlington Hts, IL 60004
Phone (847) 212-3885
29651 Network Pl
Chicago, IL 60673
9532 Eagle Way
Chicago, IL 60678
800 Biesterfield Rd
Ste 306
Elk Grove Vlg, IL 60007
Phone (847) 357-1144
2650 Ridge Ave
Ste 2218A
Evanston, IL 60201
Phone (847) 503-4222
2650 Ridge Ave
#1223
Evanston, IL 60201
Phone (847) 982-3172
2650 Ridge Ave
Evanston, IL 60201
Phone (847) 570-1206
1786 Moon Lake Blvd
Hoffman Estates, IL 60169
Phone (847) 640-5640
Interoperability endpoints
- https://epicprdproxy.nch.org/prd-fhir/api/FHIR/R4
Organizations & group practices 8
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
dba NorthShore University HealthSystem Faculty Practice Associates
- Emergency Medicine Physician
- Evanston, IL
- NPI 1497701882
Obstetrics & Gynecology
-
- Obstetrics & Gynecology Physician
- Elk Grove Village, IL
- NPI 1790020006
-
- Obstetrics & Gynecology Physician
- Arlington Heights, IL
- NPI 1003344607
-
- Obstetrics & Gynecology Physician
- Elk Grove Village, IL
- NPI 1063692580
-
dba Alexian Brothers Medical Foundation
- Family Medicine Physician
- Elk Grove Village, IL
- NPI 1588775647
-
dba NorthShore Anesthesia Group
- Anesthesiology Physician
- Evanston, IL
- NPI 1265695944
-
- Dental Clinic/Center
- Arlington Heights, IL
- NPI 1386815231
-
- Internal Medicine Physician
- Hoffman Estates, IL
- NPI 1043267073
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Elk Grove Village, IL
- NPI 1265577191
-
dba Endeavor Health Northwest Community Hospital
- General Acute Care Hospital
- Arlington Heights, IL
- NPI 1578932869
-
dba Endeavor Health Northwest Community Hospital
- General Acute Care Hospital
- Arlington Heights, IL
- NPI 1770531600
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1179792000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1763510400000",
"number": "1376752634",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "810 BIESTERFIELD RD STE 306",
"city": "ELK GROVE VILLAGE",
"state": "IL",
"postal_code": "600073311",
"telephone_number": "847-357-1144",
"fax_number": "847-357-9449"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "810 BIESTERFIELD RD",
"address_2": "SUITE 306 - WIMMER BUILDING",
"city": "ELK GROVE VILLAGE",
"state": "IL",
"postal_code": "600073378",
"telephone_number": "847-357-1144",
"fax_number": "847-357-9449"
}
],
"practiceLocations": [
{
"address_1": "1614 W Central Rd Ste 101",
"address_purpose": "LOCATION",
"city": "Arlington Heights",
"state": "IL",
"postal_code": "600052452",
"country_code": "US",
"telephone_number": "847-392-9191",
"fax_number": "847-392-9811",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "KOZIOL",
"first_name": "MARIUSZ",
"middle_name": "TOMASZ",
"name_prefix": "Mr.",
"name_suffix": "I",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2007-05-22",
"last_updated": "2025-11-19",
"certification_date": "2025-11-19",
"status": "A"
},
"taxonomies": [
{
"code": "207V00000X",
"taxonomy_group": "",
"desc": "Obstetrics & Gynecology",
"state": "IL",
"license": "036118758",
"primary": true
},
{
"code": "207V00000X",
"taxonomy_group": "",
"desc": "Obstetrics & Gynecology",
"state": "IL",
"license": "036.118758",
"primary": false
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "036118758-1",
"state": "IL"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "CAQH",
"identifier": "11790234",
"state": null
}
],
"endpoints": [],
"other_names": []
}
Other providers in Elk Grove Village, IL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 19, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.