Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Krishna Sankaran, MD

Nephrology Physician in Rockford, IL · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1558353631

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Registry record

Entity type Individual (Type 1)

Name Krishna Sankaran

Credential MD

Sex Male

Practice address 612 Roxbury Rd, Rockford, IL, 61107

Phone (815) 227-8300

Fax (815) 227-8301

Enumeration date Aug 16, 2005

Last updated in NPPES Apr 22, 2011

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 036079225 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
31879200	Medicaid	WI	-
036079225	Medicaid	IL	-
1616108	Other	IL	BCBS

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is NPI 1558353631 active?

Yes, as of the latest NPPES snapshot, NPI 1558353631 is active (record last updated 2011-04-22).

How do I verify Krishna Sankaran's NPI record?

Cross-check NPI 1558353631 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

James Stim Nephrology Physician · Rockford, IL NPI 1104827427 John Maynard Nephrology Physician · Rockford, IL NPI 1730180878 Michael Robertson Nephrology Physician · Rockford, IL NPI 1093717027 Charles Sweeney Nephrology Physician · Rockford, IL NPI 1063414944 Kathleen Capriola Adult Health Clinical Nurse Specialist · Rockford, IL NPI 1710975891 Bindu Pavithran Nephrology Physician · Rockford, IL NPI 1548210677 Yvonne Schoonover Adult Health Nurse Practitioner · Rockford, IL NPI 1841242328 Deborah Musselman Registered Dietitian · Rockford, IL NPI 1578519302

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-04-22.