Individual provider Active NPI

Ritika Singh, MD

  • Pulmonary Disease Physician
  • Portage, IN
National Provider Identifier
1730677980
Registry record updated Nov 10, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pulmonary Disease PhysicianTaxonomy code 207RP1001X
License
01098069A Issued in IN
Practice address
3156 Willowcreek Rd
Portage, IN 46368-4498
Phone
(219) 762-9444
Fax
(219) 762-2288
NPI assigned
Apr 24, 2018
Last updated
Nov 10, 2025By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Nov 10, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Critical Care Medicine (Internal Medicine) Physician 207RC0200X 01098069A IN
Pulmonary Disease Physician 207RP1001X 01098069A IN Primary

Addresses

Primary practice location

3156 Willowcreek Rd
Portage, IN 46368-4498

Mailing address

26 Hickory Dr
Oak Brook, IL 60523-1517
Phone (630) 926-9191

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address RITIKA.SINGH.1@7420.direct.athenahealth.com Direct Medical Associates of NWI LLC

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20251106002531 IN Practitioner - Internal MedicinePractitioner - Pulmonary DiseasePractitioner - Sleep Medicine 1456727403 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Sleep Medicine
Education
University of Illinois College of Med (CHI/Peor/Rock/CHM-Urb), 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
The Methodist Hospitals IncGroup PAC ID 9638063894, 131 clinicians
Medical Associates of Nwi LLCGroup PAC ID 4284812827, 2 clinicians

Practice addresses (Care Compare)

200 E 89TH Ave
Merrillville, IN 46410-7318
Phone (219) 738-5330

3156 Willowcreek Rd
Portage, IN 46368-4424
Phone (219) 762-4999

600 Grant St
Gary, IN 46402-6001
Phone (219) 381-0215

8701 Broadway
Merrillville, IN 46410-7035
Phone (219) 738-4926

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
01098069AINMDPulmonary Disease Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Medical Associates of Nwi LLC Critical Care Medicine CurrentSince Nov 10, 2025 Accepting new patients
The Methodist Hospitals, Inc Pulmonary Disease CurrentSince Nov 1, 2025 Accepting new patients
The Methodist Hospitals, Inc Current Accepting new patients
The Methodist Hospitals, Inc CurrentSince Nov 1, 2025 Accepting new patients
Inpatient Physician Group LLC Critical Care Medicine CurrentSince Oct 1, 2025 Accepting new patients

Locations

27350 Network Pl
Chicago, IL 60673

8701 Broadway
Merrillville, IN 46410
Phone (219) 738-4926

8777 Broadway
Merrillville, IN 46410
Phone (219) 736-5151

3156 Willowcreek Rd
Portage, IN 46368
Phone (219) 762-4999

2700 Valparaiso St
Ste 1663
Valparaiso, IN 46383

Interoperability endpoints

  • FHIR API: https://api.platform.athenahealth.com/7420/brand/1/csg/1/fhir/r4
  • Direct secure messaging: ritika.singh.1@7420.direct.athenahealth.com
  • Direct secure messaging: rsingh192882@themethodisthospitals.direct-ci.com

Organizations & group practices 5

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 4

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

NPI Registry JSON

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

{
    "created_epoch": "1524528000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1762732800000",
    "number": "1730677980",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "26 HICKORY DR",
            "city": "OAK BROOK",
            "state": "IL",
            "postal_code": "605231517",
            "telephone_number": "630-926-9191"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3156 WILLOWCREEK RD",
            "city": "PORTAGE",
            "state": "IN",
            "postal_code": "463684498",
            "telephone_number": "219-762-9444",
            "fax_number": "219-762-2288"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SINGH",
        "first_name": "RITIKA",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2018-04-24",
        "last_updated": "2025-11-10",
        "certification_date": "2025-11-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "IN",
            "license": "01098069A",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "IN",
            "license": "01098069A",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "RITIKA.SINGH.1@7420.direct.athenahealth.com",
            "affiliation": "Y",
            "affiliationName": "Medical Associates of NWI LLC",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "3156 Willowcreek Rd",
            "city": "Portage",
            "state": "IN",
            "country_code": "US",
            "postal_code": "463684424",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Portage, IN

Sources for this page

Verify at the official NPI Registry.