Active NPI
Maciej Zawadzki, OTR/L
- Occupational Therapist
- Fairfield, CA
National Provider Identifier
1487565081
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Occupational Therapist
- License
- 8153
- Practice address
- 2460 Clay Bank Rd
Fairfield, CA 94533-1655 - Phone
- (707) 399-4840
- NPI assigned
- Sep 14, 2026
- 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 |
|---|---|---|---|---|
| Occupational Therapist | 225X00000X | 8153 | CA | Primary |
Addresses
Primary practice location
2460 Clay Bank Rd
Fairfield, CA 94533-1655
Mailing address
3710 Harmony Way
Concord, CA 94519-1714
Phone (707) 399-4840
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1789344000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1789344000000",
"number": "1487565081",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3710 HARMONY WAY",
"city": "CONCORD",
"state": "CA",
"postal_code": "945191714",
"telephone_number": "707-399-4840"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2460 CLAY BANK RD",
"city": "FAIRFIELD",
"state": "CA",
"postal_code": "945331655",
"telephone_number": "707-399-4840"
}
],
"practiceLocations": [],
"basic": {
"last_name": "ZAWADZKI",
"first_name": "MACIEJ",
"name_prefix": "Mr.",
"credential": "OTR/L",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2026-09-14",
"last_updated": "2026-09-14",
"certification_date": "2026-09-14",
"status": "A"
},
"taxonomies": [
{
"code": "225X00000X",
"taxonomy_group": "193400000X SINGLE SPECIALTY GROUP",
"desc": "Occupational Therapist",
"state": "CA",
"license": "8153",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Fairfield, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 14, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.