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LESLIE J KLAFF MD
NPI 1720009764
Internal Medicine - Endocrinology, Diabetes & Metabolism in Renton, WA

Active since July 23, 2006
723 SW 10TH ST, #100, RENTON, WA 98057(425) 251-1720(425) 251-1723 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Leslie J Klaff Md NPPES

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

LESLIE J KLAFF MD (NPI 1720009764) is an individual endocrinology, diabetes & metabolism provider in Renton, Washington, licensed in Washington (MD00021403) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1720009764
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameLESLIE J KLAFFCredential: MD
Location Address723 SW 10TH ST, #100Renton, WA 98057
Mailing Address723 Sw 10th St, #100Renton, WA 98057 · (425) 251-1720 · Fax (425) 251-1723
Phone(425) 251-1720
Fax(425) 251-1723
Sole ProprietorNo
Enumeration DateJuly 23, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1720009764 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in WA · MD00021403
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
723 SW 10TH ST, Renton, WA 98057
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Other Identifiers 2

Medicaid1053883WA
Medicare UPINB18188

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.

KENDRA NICOLE MULLIN
Technician, Health Information
723 SW 10TH ST
RENTON, WA 98057
King County (206) 887-5945
DAMARYS MACLARA CASTRO SUDPT
Counselor (Addiction (Substance Use Disorder))
723 SW 10TH ST
RENTON, WA 98057
King County (206) 461-4880
JENNIFER MARTINEZ-LORENZO
Student in an Organized Health Care Education/Training Program
723 SW 10TH ST
RENTON, WA 98057
King County (206) 461-4880
ALEXSANDRA GRUNDEN
Nurse Practitioner (Psychiatric/Mental Health)
723 SW 10TH ST
RENTON, WA 98057
King County (206) 461-4880
EDITH RUIZ
Interpreter
723 SW 10TH ST
RENTON, WA 98057
King County (206) 461-4880
MARIA FATIMA BETANCOURT SEMENKO
Counselor (Mental Health)
723 SW 10TH ST
RENTON, WA 98057
King County (206) 461-4880
NATALIE LOUISE TADEO NOEL
Student in an Organized Health Care Education/Training Program
723 SW 10TH ST
RENTON, WA 98057
King County (206) 461-4880
RONALD L BRAZG MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
723 SW 10TH ST, STE 250
RENTON, WA 98057
King County (425) 656-4040

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 Leslie Klaff's NPI number?

The NPI number for Leslie Klaff is 1720009764. It was assigned to this individual provider in the NPPES registry on July 23, 2006.

Where is Leslie Klaff located?

Leslie Klaff practices at 723 SW 10th St #100, Renton, WA 98057. The listed phone number is (425) 251-1720.

What is Leslie Klaff's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

When was this NPI record last updated?

The NPPES record for Leslie Klaff was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.