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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

JOEL D. KOPPLE M.D.
NPI 1063475135
Internal Medicine - Nephrology in Torrance, CA

Active since April 10, 2006
21840 NORMANDIE AVE, STE. 700, TORRANCE, CA 90502(310) 222-5101(310) 320-5463 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Joel D. Kopple M.d. NPPES

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

JOEL D. KOPPLE M.D. (NPI 1063475135) is an individual nephrology provider in Torrance, California, licensed in California (G10375) and active in the NPI registry since April 2006.

NPPES Registry Identity

NPI1063475135
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameJOEL D. KOPPLECredential: M.D.
Location Address21840 NORMANDIE AVE, STE. 700Torrance, CA 90502-2047
Mailing Address21840 Normandie Ave, Ste. 700Torrance, CA 90502-2047 · (310) 222-5101 · Fax (310) 320-5463
Phone(310) 222-5101
Fax(310) 320-5463
Sole ProprietorNo
Enumeration DateApril 10, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1063475135 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in CA · G10375
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.
21840 NORMANDIE AVE, Torrance, CA 90502
Open in Google Maps ↗

Other Identifiers 1

Medicaid00G103750CA

Other Providers at the Same Location NPPES 20

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

KATAYOUN K MOSTAFAIE M.D.
General Practice
21840 NORMANDIE AVE, STE. 700
TORRANCE, CA 90502
Los Angeles County (310) 222-5101
ANDREW G GIANOUKAKIS M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
21840 NORMANDIE AVE, STE. 700
TORRANCE, CA 90502
Los Angeles County (310) 222-5183
KATHY E SIETSEMA M.D.
Internal Medicine (Pulmonary Disease)
21840 NORMANDIE AVE
TORRANCE, CA 90502
Los Angeles County (310) 222-5101
MARK T. MUNEKATA M.D.
General Practice
21840 NORMANDIE AVE, STE. 700
TORRANCE, CA 90502
Los Angeles County (310) 222-5101
NEDILJKA BULJUBASIC M.D.
Internal Medicine (Cardiovascular Disease)
21840 NORMANDIE AVE, STE. 700
TORRANCE, CA 90502
Los Angeles County (310) 222-5101
CATHERINE S MAO M.D.
Pediatrics (Pediatric Endocrinology)
21840 NORMANDIE AVE, STE. 1100
TORRANCE, CA 90502
Los Angeles County (310) 222-5133
RONALD SWERDLOFF M.D.
Internal Medicine (Endocrinology, Diabetes & Metabolism)
21840 NORMANDIE AVE, STE. 700
TORRANCE, CA 90502
Los Angeles County (310) 222-5101
JOHN W TSUANG M.D.
Psychiatry & Neurology (Psychiatry)
21840 NORMANDIE AVE, STE. 200
TORRANCE, CA 90502
Los Angeles County (310) 222-3101

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 Joel Kopple's NPI number?

The NPI number for Joel Kopple is 1063475135. It was assigned to this individual provider in the NPPES registry on April 10, 2006.

Where is Joel Kopple located?

Joel Kopple practices at 21840 Normandie Ave Ste. 700, Torrance, CA 90502. The listed phone number is (310) 222-5101.

What is Joel Kopple's specialty?

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

When was this NPI record last updated?

The NPPES record for Joel Kopple was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 days 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.