LESLIE J KLAFF (MD) – Endocrinology, Diabetes & Metabolism Physician, NPI 1720009764

LESLIE J KLAFF (MD) is a healthcare provider. based in Renton, Washington. specializing in Endocrinology, Diabetes & Metabolism Physician. They hold the professional credentials MD. They hold a License No. MD00021403 (WA). The NPI Number for LESLIE J KLAFF (MD) is 1720009764

Main info

Male
Name
LESLIE J KLAFF (MD)
NPI
1720009764
Phone
(425) 251-1720
Address
723 SW 10TH ST
Enumeration Date
23 July 2006
Last Update Date
8 July 2007
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness75
Years active:19State licenses:1Digital endpointsOther names

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Provider Addresses for LESLIE J KLAFF (MD)

  • 723, Southwest 10th Street, Renton, King County, Washington, 98057, United States

    #100

    RENTON, WA 98057

    Phone: (425) 251-1720

    Fax: (425) 251-1723

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 4 Open Payments records for all available years, with a total value of $148,669.

Total Amount is formed as General ($0) + Research ($148,669) + Ownership ($0) = $148,669.

Last reported payment date: 2023-05-31 • Largest payer in this snapshot: Eli Lilly and Company ($148,669).

Total Amount

$148,669

General + Research + Ownership

Payments

4

Total payment records

General Amount

$0

General payments

Research Amount

$148,669

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-05-31

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
Eli Lilly and Company$148,669
View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

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Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 98057)

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Reviews

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Frequently asked questions

What is LESLIE J KLAFF (MD)'s NPI number?
LESLIE J KLAFF (MD)'s NPI is 1720009764 — the number used across U.S. healthcare to identify this provider.
Is there an active status for LESLIE J KLAFF (MD)?
For scheduling context, LESLIE J KLAFF (MD) is shown as active in the registry.
How would a patient describe LESLIE J KLAFF (MD)'s focus?
For LESLIE J KLAFF (MD), the primary taxonomy reads as Endocrinology, Diabetes & Metabolism Physician. Clinical services aligned with this taxonomy classification.
What locale is associated with LESLIE J KLAFF (MD)?
Directory geography for LESLIE J KLAFF (MD) centers on Renton, Washington.
Can I trust this NPI listing for LESLIE J KLAFF (MD)?
The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.

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