Active NPI
Preferred Diagnostic Centers, LLC
- Sleep Disorder Diagnostic Clinic/Center
- Greenville, SC
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Sleep Disorder Diagnostic Clinic/Center
- Legal business name
- PREFERRED DIAGNOSTIC CENTERS, LLC
- Practice address
- 536 Old Howell Rd
Greenville, SC 29615-1969 - Phone
- (864) 527-5970
- Fax
- (336) 217-0802
- NPI assigned
- Jun 2, 2006
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Steve Feldman
- Title
- President
- Phone
- (917) 803-3470
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Sleep Disorder Diagnostic Clinic/Center | 261QS1200X | Primary |
Addresses
Primary practice location
536 Old Howell Rd
Greenville, SC 29615-1969
Mailing address
536 Old Howell Rd
Greenville, SC 29615-1969
Phone (917) 803-3470
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NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1149206400000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1781222400000",
"number": "1972540375",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "536 OLD HOWELL RD",
"city": "GREENVILLE",
"state": "SC",
"postal_code": "296151969",
"telephone_number": "917-803-3470",
"fax_number": "336-217-0802"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "536 OLD HOWELL RD",
"city": "GREENVILLE",
"state": "SC",
"postal_code": "296151969",
"telephone_number": "864-527-5970",
"fax_number": "336-217-0802"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "PREFERRED DIAGNOSTIC CENTERS, LLC",
"organizational_subpart": "NO",
"enumeration_date": "2006-06-02",
"last_updated": "2026-06-12",
"certification_date": "2026-06-12",
"status": "A",
"authorized_official_last_name": "FELDMAN",
"authorized_official_first_name": "STEVE",
"authorized_official_title_or_position": "PRESIDENT",
"authorized_official_telephone_number": "917-803-3470"
},
"taxonomies": [
{
"code": "261QS1200X",
"taxonomy_group": "",
"desc": "Clinic/Center, Sleep Disorder Diagnostic",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Greenville, SC
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 12, 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.