Active NPI
Thomas J. Danyliw, MD
- Occupational Medicine Physician
- Middletown, CT
National Provider Identifier
1003881426
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Occupational Medicine Physician
- License
- E09021
- Practice address
- 28 Crescent St
Middletown, CT 06457-3654 - Phone
- (860) 344-6394
- Fax
- (860) 344-6748
- NPI assigned
- Feb 20, 2006
- 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 |
|---|---|---|---|---|
| Emergency Medicine Physician | 207P00000X | 021446 | DE | |
| Occupational Medicine Physician | 2083X0100X | E09021 | CT | Primary |
Addresses
Primary practice location
28 Crescent St
Middletown, CT 06457-3654
Mailing address
28 Crescent St
Middletown, CT 06457-3654
Phone (860) 344-6394
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)
- Not enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 021446 | DE | MD | Emergency Medicine Physician |
| E09021 | CT | MD | Occupational Medicine Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1140393600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1003881426",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "28 CRESCENT ST",
"city": "MIDDLETOWN",
"state": "CT",
"postal_code": "064573654",
"telephone_number": "860-344-6394",
"fax_number": "860-344-6748"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "28 CRESCENT ST",
"city": "MIDDLETOWN",
"state": "CT",
"postal_code": "064573654",
"telephone_number": "860-344-6394",
"fax_number": "860-344-6748"
}
],
"practiceLocations": [],
"basic": {
"last_name": "DANYLIW",
"first_name": "THOMAS",
"middle_name": "J.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-02-20",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "DE",
"license": "021446",
"primary": false
},
{
"code": "2083X0100X",
"taxonomy_group": "",
"desc": "Preventive Medicine, Occupational Medicine",
"state": "CT",
"license": "E09021",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Middletown, CT
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.