Nephrology Specialists, P.C.

Nephrology Specialists, P.C. is a healthcare organization registered as Nephrology Physician in Gary, IN, holding Type 2 (organization) NPI 1578738464 since 2008. The authorized official on file is David Ashbach, President.

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NPI	1578738464
Entity type	Organization (Type 2)
Legal business name	Nephrology Specialists, P.C.
Practice address	4802 BROADWAY, Gary, IN, 46408
Phone	2198874950
Fax	2198874955
Enumeration date	2008-04-23
Last updated in NPPES	2008-04-23

Authorized official

Name	David Ashbach
Title	President
Phone	2198369024

Taxonomy & classification

Taxonomy code	Specialty	Primary	License	State
207RN0300X	Nephrology Physician	Primary	—	—

Copy-ready billing details

Provider: Nephrology Specialists, P.C.
NPI: 1578738464
Taxonomy: 207RN0300X (Nephrology Physician)
Address: 4802 BROADWAY, Gary, IN, 46408

Providers at this address

NPI	Name	Type	Specialty	Location
1306842786	Kupusamy Umapathy	Individual	Nephrology Physician	Gary, IN
1952364648	Trc - Indiana LLC	Organization	End-Stage Renal Disease (ESRD) Treatment Clinic/Center	Gary, IN
1962466938	Timothy Gardner	Individual	Nurse Practitioner	Gary, IN
1790035244	Umapathy MD, PC	Organization	Nephrology Physician	Gary, IN

Verify this record

Cross-check NPI 1578738464 against the authoritative CMS record: view Nephrology Specialists, P.C. on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

Where is Nephrology Specialists, P.C. located?

The practice location on file with NPPES is in Gary, IN.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-04-23. Verify at npiregistry.cms.hhs.gov.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-04-23.