1. Home
  2. Directory
  3. California
  4. Fresno
  5. Internal Medicine
  6. NPI Profile

THE NEPHROLOGY GROUP, INC.
NPI 1205906229
Internal Medicine - Nephrology in Fresno, CA

Active since November 08, 2006CLIA 05D2117785 · Microscopy
568 E HERNDON AVE, SUITE 201, FRESNO, CA 93720(559) 228-6600(559) 226-3709 Get Directions Write a Review

NPPES record last updated: May 10, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: May 10, 2023, Oct 26, 2022, Aug 15, 2017 and 1 more (4 updates tracked since 2016).

About The Nephrology Group, Inc. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

THE NEPHROLOGY GROUP, INC. (NPI 1205906229) is a healthcare organization registered as a nephrology in Fresno, California and active in the NPI registry since November 2006. The organization holds a CLIA Microscopy certificate valid through August 22, 2026 and lists Steve Wei-shing Su, Assistant Secretary, as its authorized official.

NPPES Registry Identity

NPI1205906229
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameTHE NEPHROLOGY GROUP, INC.
Location Address568 E HERNDON AVE, SUITE 201Fresno, CA 93720-2989
Mailing Address568 E Herndon Ave, Suite 201Fresno, CA 93720-2989 · (559) 228-6600 · Fax (559) 226-3709
Phone(559) 228-6600
Fax(559) 226-3709
Organization SubpartNo
Authorized OfficialSteve Wei-shing SuAssistant Secretary · (559) 228-6600
Enumeration DateNovember 8, 2006
Last NPPES UpdateMay 10, 20234 updates tracked since enumeration
NPPES CertifiedMay 10, 2023
✔ NPI 1205906229 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedInternal Medicine · Endocrinology, Diabetes & MetabolismTaxonomy 207RE0101X
568 E HERNDON AVE, Fresno, CA 93720
Open in Google Maps ↗

Other Identifiers 1

MedicaidGR0062730CA

Group Practice 2

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP
Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate for Provider-Performed Microscopy Procedures (PPMP) 05D2117785

The Nephrology Group Inc · Fresno, CA
Active · expires Aug 22, 2026
CLIA Number05D2117785
Laboratory TypePhysician Office
Certificate Effective DateAugust 23, 2024
Certificate Expiration DateAugust 22, 2026
Laboratory DirectorSteve W. Su
Laboratory Phone(559) 228-6600
Laboratory LocationThe Nephrology Group Inc568 E Herndon Ave Ste 201, Fresno, CA 93720
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

Other Providers at the Same Location NPPES 16

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NARALA AND MADIREDDY MD A PROFESSIONAL CORPORATION
Pediatrics
568 E HERNDON AVE, SUITE 101
FRESNO, CA 93720
Fresno County (559) 224-7990
MRS. AMY HELEN WATSON NP, PAC, MSN
Nurse Practitioner
568 E HERNDON AVE, SUITE 201
FRESNO, CA 93720
Fresno County (559) 228-6600
MARIA ELENA FLORES P.A.
Physician Assistant
568 E HERNDON AVE, SUITE 201
FRESNO, CA 93720
Fresno County (559) 228-6600
MEI-TSUEY HWANG MD
Internal Medicine (Nephrology)
568 E HERNDON AVE, SUITE 201
FRESNO, CA 93720
Fresno County (559) 228-6600
CAROL ROSS-MCCORMICK RN, NP
Internal Medicine (Nephrology)
568 E HERNDON AVE, SUITE 201
FRESNO, CA 93720
Fresno County (559) 228-6600
NARALA & MADIREDDY MD A PROFESSIONAL CORPORATION
Internal Medicine
568 E HERNDON AVE, STE 102
FRESNO, CA 93720
Fresno County (559) 221-7500
DR. NAGARATNAMMA MADIREDDY M.D.
Pediatrics
568 E HERNDON AVE, SUITE 101
FRESNO, CA 93720
Fresno County (559) 224-7990
JASJIT SINGH M.D.
Internal Medicine (Nephrology)
568 E HERNDON AVE, SUITE 201
FRESNO, CA 93720
Fresno County (559) 228-6600

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is The Nephrology Group, Inc.'s NPI number?

The NPI number for The Nephrology Group, Inc. is 1205906229. It was assigned to this organization in the NPPES registry on November 8, 2006.

Where is The Nephrology Group, Inc. located?

The Nephrology Group, Inc. is located at 568 E Herndon Ave Suite 201, Fresno, CA 93720. The listed phone number is (559) 228-6600.

What is The Nephrology Group, Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Does The Nephrology Group, Inc. hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 05D2117785) is associated with this NPI, valid through August 22, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for The Nephrology Group, Inc. was last updated on May 10, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.