Active NPI
Lydia Hays
- Developmental - Behavioral Pediatrics Physician
- Merrillville, IN
National Provider Identifier
1841160744
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Developmental - Behavioral Pediatrics Physician
- License
- 3360-28-7847
- Practice address
- 370 W 80TH PL
Merrillville, IN 46410-5432 - Phone
- (219) 513-8311
- NPI assigned
- Nov 6, 2025
- Sex
- Female
- Sole proprietor
- No
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 |
|---|---|---|---|---|
| Developmental - Behavioral Pediatrics Physician | 2080P0006X | 3360-28-7847 | IN | Primary |
Addresses
Primary practice location
370 W 80TH PL
Merrillville, IN 46410-5432
Mailing address
3272 E Bend Dr Apt 301
Portage, IN 46368-5028
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
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1762387200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1762387200000",
"number": "1841160744",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3272 E BEND DR APT 301",
"city": "PORTAGE",
"state": "IN",
"postal_code": "463685028"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "370 W 80TH PL",
"city": "MERRILLVILLE",
"state": "IN",
"postal_code": "464105432",
"telephone_number": "219-513-8311"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HAYS",
"first_name": "LYDIA",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2025-11-06",
"last_updated": "2025-11-06",
"certification_date": "2025-11-06",
"status": "A"
},
"taxonomies": [
{
"code": "2080P0006X",
"taxonomy_group": "",
"desc": "Pediatrics, Developmental - Behavioral Pediatrics",
"state": "IN",
"license": "3360-28-7847",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Merrillville, IN
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 6, 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.