Active NPI
Rrem Inc
- Oxygen Equipment & Supplies (DME)
- Chicago, IL
National Provider Identifier
1649668039
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Oxygen Equipment & Supplies (DME)
- Legal business name
- RREM INC
- Doing business as
- Winston Manor
- Practice address
- 2155 W Pierce Ave
Chicago, IL 60622-1884 - Phone
- (773) 252-2066
- NPI assigned
- Jan 7, 2015
- 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
- Marvin Mermelstein
- Title
- President
- Phone
- (847) 679-7484
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Oxygen Equipment & Supplies (DME) | 332BX2000X | Primary |
Addresses
Primary practice location
2155 W Pierce Ave
Chicago, IL 60622-1884
Mailing address
6500 N Hamlin Ave
Lincolnwood, IL 60712-3904
Other names 1
- Winston Manor
National Provider Directory
National Provider DirectoryNPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1420588800000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1784160000000",
"number": "1649668039",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "6500 N HAMLIN AVE",
"city": "LINCOLNWOOD",
"state": "IL",
"postal_code": "607123904"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2155 W PIERCE AVE",
"city": "CHICAGO",
"state": "IL",
"postal_code": "606221884",
"telephone_number": "773-252-2066"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "RREM INC",
"organizational_subpart": "NO",
"enumeration_date": "2015-01-07",
"last_updated": "2026-07-16",
"certification_date": "2026-07-16",
"status": "A",
"authorized_official_last_name": "MERMELSTEIN",
"authorized_official_first_name": "MARVIN",
"authorized_official_title_or_position": "PRESIDENT",
"authorized_official_telephone_number": "847-679-7484"
},
"taxonomies": [
{
"code": "332BX2000X",
"taxonomy_group": "",
"desc": "Durable Medical Equipment & Medical Supplies, Oxygen Equipment & Supplies",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"organization_name": "Winston Manor",
"code": "3",
"type": "Doing Business As"
},
{
"organization_name": "Winston Manor",
"code": "3",
"type": "Doing Business As"
}
]
}
Other providers in Chicago, IL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 16, 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.