Active NPI
William M Bitsas, MD
- Family Medicine Physician
- Poplar Grove, IL
National Provider Identifier
1295744183
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Family Medicine Physician
- License
- 036-116859
- Practice address
- 406 Maple Leaf LN
Poplar Grove, IL 61065 - Phone
- (541) 720-2746
- NPI assigned
- Aug 7, 2006
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Family Medicine Physician | 207Q00000X | 036-116859 | IL | Primary |
Addresses
Primary practice location
406 Maple Leaf LN
Poplar Grove, IL 61065
Mailing address
406 Maple Leaf LN
Poplar Grove, IL 61065-8567
Phone (541) 720-2746
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 036116859 | Medicaid | IL |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 036-116859 | IL | MD | Family Medicine Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1154908800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1767830400000",
"number": "1295744183",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "406 MAPLE LEAF LN",
"city": "POPLAR GROVE",
"state": "IL",
"postal_code": "610658567",
"telephone_number": "541-720-2746",
"fax_number": "541-229-1199"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "406 MAPLE LEAF LN",
"city": "POPLAR GROVE",
"state": "IL",
"postal_code": "61065",
"telephone_number": "541-720-2746"
}
],
"practiceLocations": [],
"basic": {
"last_name": "BITSAS",
"first_name": "WILLIAM",
"middle_name": "M",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-08-07",
"last_updated": "2026-01-08",
"certification_date": "2026-01-08",
"status": "A"
},
"taxonomies": [
{
"code": "207Q00000X",
"taxonomy_group": "",
"desc": "Family Medicine",
"state": "IL",
"license": "036-116859",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "036116859",
"state": "IL"
}
],
"endpoints": [],
"other_names": []
}Other providers in Poplar Grove, IL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 8, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.