NPIMap

Individual provider Active NPI

Grazyna Joanna Siwy, M.D.

  • Internal Medicine Physician
  • Chicago, IL
National Provider Identifier
1447498910
Registry record updated Apr 30, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
036122386 Issued in IL
Practice address
1901 W Harrison St
Chicago, IL 60612-3714
Phone
(312) 864-6000
NPI assigned
Jan 22, 2009
Last updated
Apr 30, 2021By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Apr 30, 2021

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 036122386 IL Primary

Addresses

Primary practice location

1901 W Harrison St
Chicago, IL 60612-3714

Mailing address

8644 W Stolting Rd
Niles, IL 60714-1817
Phone (847) 692-2377

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address gsiwy@direct.ccprovider.org Direct Cook County

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20110228000336 IL Practitioner - General Practice 9032390828 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
General Practice
Education
Other, 1998
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Cook CountyGroup PAC ID 2860398088, 770 clinicians

Practice addresses (Care Compare)

1901 W Harrison St
Chicago, IL 60612-3714
Phone (312) 633-7292

4800 W Chicago Ave
Chicago, IL 60651-3226
Phone (773) 826-9600

500 E 51St St
Chicago, IL 60615-2494
Phone (312) 572-2000

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
95.11 of 100Reported as group
Quality
74.7
Promoting interoperability
100
Improvement activities
40
Cost
85.45

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Cook County Current Accepting new patients
Cook County CurrentSince Nov 10, 2010 Accepting new patients
Cook County CurrentSince Nov 10, 2010 Accepting new patients
Mt Sinai Pediatric Center FFS Past Accepting new patients

Locations

1901 W Harrison St
Chicago, IL 60612

4800 W Chicago Ave
Chicago, IL 60651
Phone (773) 826-9600

500 E 51st St
Chicago, IL 60615
Phone (312) 572-2000

Interoperability endpoints

  • Direct secure messaging: gsiwy@direct.ccprovider.org

Organizations & group practices 4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 27

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 27

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1232582400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1619740800000",
    "number": "1447498910",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8644 W STOLTING RD",
            "city": "NILES",
            "state": "IL",
            "postal_code": "607141817",
            "telephone_number": "847-692-2377"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1901 W HARRISON ST",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606123714",
            "telephone_number": "312-864-6000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIWY",
        "first_name": "GRAZYNA",
        "middle_name": "JOANNA",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2009-01-22",
        "last_updated": "2021-04-30",
        "certification_date": "2021-04-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "036122386",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "gsiwy@direct.ccprovider.org",
            "affiliation": "Y",
            "affiliationName": "Cook County",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1969 W. Ogden Ave.",
            "city": "Chicago",
            "state": "IL",
            "country_code": "US",
            "postal_code": "606123723",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

Verify at the official NPI Registry.