Active NPI
Nani Elk Grove
- Nephrology Physician
- Oak Brook, IL
National Provider Identifier
1154675528
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Nephrology Physician
- Legal business name
- NANI ELK GROVE
- Practice address
- 120 W 22ND St
Oak Brook, IL 60523-1563 - Phone
- (630) 573-5000
- Fax
- (708) 386-2839
- NPI assigned
- Nov 6, 2012
- Organization subpart
- Yes
- Parent organization
- NEPHROLOGY ASSOCIATES OF NORTHERN ILLINOIS
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Dr. Manish M. Tanna, M.D.
- Title
- President
- Phone
- (630) 573-5000
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Nephrology Physician | 207RN0300X | Primary |
Addresses
Primary practice location
120 W 22ND St
Oak Brook, IL 60523-1563
Mailing address
120 W 22ND St
Oak Brook, IL 60523-1563
Phone (630) 573-5000
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in IL
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| O20130529000429 | IL | Part B Supplier - Clinic/Group Practice | 8123266376 |
Receives reassigned benefits from 27 practitioners Practice locations: Elk Grove Village, IL; Hoffman Estates, IL |
National Provider Directory
National Provider Directory- Part of
- Nephrology Associates of Northern Illinois
Locations
1555 N Barrington Rd
Ste 3400
Hoffman Estates, IL 60169
Phone (847) 843-5747
Practitioners & affiliated clinicians
Practitioners 28
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1352160000000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1770163200000",
"number": "1154675528",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "120 W 22ND ST",
"city": "OAK BROOK",
"state": "IL",
"postal_code": "605231563",
"telephone_number": "630-573-5000",
"fax_number": "847-952-9338"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "120 W 22ND ST",
"city": "OAK BROOK",
"state": "IL",
"postal_code": "605231563",
"telephone_number": "630-573-5000",
"fax_number": "708-386-2839"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "NANI ELK GROVE",
"organizational_subpart": "YES",
"parent_organization_legal_business_name": "NEPHROLOGY ASSOCIATES OF NORTHERN ILLINOIS",
"enumeration_date": "2012-11-06",
"last_updated": "2026-02-04",
"certification_date": "2026-02-04",
"status": "A",
"authorized_official_last_name": "TANNA",
"authorized_official_first_name": "MANISH",
"authorized_official_middle_name": "M.",
"authorized_official_title_or_position": "PRESIDENT",
"authorized_official_telephone_number": "630-573-5000",
"authorized_official_name_prefix": "Dr.",
"authorized_official_credential": "M.D."
},
"taxonomies": [
{
"code": "207RN0300X",
"taxonomy_group": "193400000X SINGLE SPECIALTY GROUP",
"desc": "Internal Medicine, Nephrology",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Oak Brook, IL
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 4, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.