Active NPI
Matthew Mark Witkowski, DMD
- Endodontics
- South Barrington, IL
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Endodontics
- License
- 021.003457
- Practice address
- 20 Executive CT Ste 1
South Barrington, IL 60010-9543 - Phone
- (847) 550-3460
- NPI assigned
- Feb 14, 2018
- 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 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| General Practice Dentistry | 1223G0001X | 019032088 | IL | |
| Student in an Organized Health Care Education/Training Program | 390200000X | |||
| Student in an Organized Health Care Education/Training Program | 390200000X | RES-30652 | IA | |
| Endodontics | 1223E0200X | 021.003457 | IL | Primary |
Addresses
Primary practice location
20 Executive CT Ste 1
South Barrington, IL 60010-9543
Mailing address
2405 River Woods Dr
Naperville, IL 60565-6356
Phone (313) 407-6569
Other practice location 1
801 Newton Rd
Iowa City, IA 52242-1001
Phone (319) 335-7440
Other practice location 2
27005 76th Ave
New Hyde Park, NY 11040-1402
Phone (313) 407-6569
Other practice location 3
19615 Governors Hwy
Flossmoor, IL 60422-2037
Phone (708) 221-8343
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NY
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: No
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20190104000345 | NY | Order and Referring Only - Dentist | 4284970724 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 021.003457 | IL | MD | Endodontist |
| 019032088 | IL | MD | General Practice Dentistry |
| RES-30652 | IA | MD | Student in an Organized Health Care Education/Training Program |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| BDD of Illinois P.C. | Endodontics | Current | Accepting new patients |
Locations
19615 Governors Hwy
Flossmoor, IL 60422
Phone (708) 221-8343
Organizations & group practices 1
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
dba AH Smiles
- General Practice Dentistry
- Arlington Heights, IL
- NPI 1063183044
Endodontics
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1518566400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1753142400000",
"number": "1508366717",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2405 RIVER WOODS DR",
"city": "NAPERVILLE",
"state": "IL",
"postal_code": "605656356",
"telephone_number": "313-407-6569"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "20 EXECUTIVE CT STE 1",
"city": "SOUTH BARRINGTON",
"state": "IL",
"postal_code": "600109543",
"telephone_number": "847-550-3460"
}
],
"practiceLocations": [
{
"address_1": "801 Newton Rd",
"address_purpose": "LOCATION",
"city": "Iowa City",
"state": "IA",
"postal_code": "522421001",
"country_code": "US",
"telephone_number": "319-335-7440",
"fax_number": "319-335-7451",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "27005 76th Ave",
"address_purpose": "LOCATION",
"city": "New Hyde Park",
"state": "NY",
"postal_code": "110401402",
"country_code": "US",
"telephone_number": "313-407-6569",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "19615 Governors Hwy",
"address_purpose": "LOCATION",
"city": "Flossmoor",
"state": "IL",
"postal_code": "604222037",
"country_code": "US",
"telephone_number": "708-221-8343",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "WITKOWSKI",
"first_name": "MATTHEW",
"middle_name": "MARK",
"name_prefix": "Dr.",
"credential": "DMD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2018-02-14",
"last_updated": "2025-07-22",
"certification_date": "2025-07-22",
"status": "A"
},
"taxonomies": [
{
"code": "1223G0001X",
"taxonomy_group": "",
"desc": "Dentist, General Practice",
"state": "IL",
"license": "019032088",
"primary": false
},
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": null,
"license": null,
"primary": false
},
{
"code": "390200000X",
"taxonomy_group": "",
"desc": "Student in an Organized Health Care Education/Training Program",
"state": "IA",
"license": "RES-30652",
"primary": false
},
{
"code": "1223E0200X",
"taxonomy_group": "",
"desc": "Dentist, Endodontics",
"state": "IL",
"license": "021.003457",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in South Barrington, IL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 22, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.