Organization Active NPI

Rrem Inc

  • Oxygen Equipment & Supplies (DME)
  • Chicago, IL
National Provider Identifier
1649668039
Registry record updated Jul 16, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Oxygen Equipment & Supplies (DME)Taxonomy code 332BX2000X
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

Updated by the provider on Jul 16, 2026

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)CodeLicenseStatePrimary
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 Doing business as

National Provider Directory

National Provider Directory

NPI 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.

Verify at the official NPI Registry.