Individual provider Active NPI

Dannielle C Grayer, MD

  • Infectious Disease Physician
  • Chicago, IL
National Provider Identifier
1548754674
Registry record updated Aug 31, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Infectious Disease PhysicianTaxonomy code 207RI0200X
License
036161232 Issued in IL
Practice address
240 E Huron St # 1-200
Chicago, IL 60611-2909
Phone
(312) 503-7975
NPI assigned
Jun 21, 2018
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 31, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X 125073279 IL
Internal Medicine Physician 207R00000X 125073279 IL
Infectious Disease Physician 207RI0200X 036161232 IL Primary

Addresses

Primary practice location

240 E Huron St # 1-200
Chicago, IL 60611-2909

Mailing address

2317 W Grenshaw St Unit 1
Chicago, IL 60612-4205
Phone (317) 629-6521

Other practice location 1

676 N Saint Clair St Ste 940
Chicago, IL 60611-2945
Phone (312) 926-8358

Other practice location 2

1650 W Harrison St Ste 466
Chicago, IL 60612-3800
Phone (312) 942-2200

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address dannielle.grayer@northwestern.edu Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
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
I20180818000011 IL Order and Referring Only - Pediatric MedicinePractitioner - Pediatric Medicine 8022367457

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
125073279ILMDPediatrics Physician

NPI Registry JSON

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

{
    "created_epoch": "1529539200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1788134400000",
    "number": "1548754674",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2317 W GRENSHAW ST UNIT 1",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606124205",
            "telephone_number": "317-629-6521"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "240 E HURON ST # 1-200",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606112909",
            "telephone_number": "312-503-7975"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "676 N Saint Clair St Ste 940",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606112945",
            "country_code": "US",
            "telephone_number": "312-926-8358",
            "fax_number": "312-926-9630",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1650 W Harrison St Ste 466",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606123800",
            "country_code": "US",
            "telephone_number": "312-942-2200",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GRAYER",
        "first_name": "DANNIELLE",
        "middle_name": "C",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-06-21",
        "last_updated": "2026-08-31",
        "certification_date": "2026-08-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "IL",
            "license": "125073279",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "125073279",
            "primary": false
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "IL",
            "license": "036161232",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "dannielle.grayer@northwestern.edu",
            "affiliation": "N",
            "endpointDescription": "email",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "240 E Huron St # 1-200",
            "city": "Chicago",
            "state": "IL",
            "country_code": "US",
            "postal_code": "606112909",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

Verify at the official NPI Registry.