MS. NANCY J LEFF (LCSW) – Social Worker, NPI 1124073499

MS. NANCY J LEFF (LCSW) is a healthcare provider. based in Madison, Wisconsin. specializing in Social Worker. They hold the professional credentials LCSW. They hold a License No. 2401-123 (WI). The NPI Number for MS. NANCY J LEFF (LCSW) is 1124073499

Main info

Female
51 Years Of Experience
Accepts Medicare Assignment
Name
MS. NANCY J LEFF (LCSW)
NPI
1124073499
Phone
(608) 231-3191
Address
2709 MARSHALL CT
Enumeration Date
24 May 2006
Last Update Date
23 January 2008

Doctor Profile

Medical School Name
OTHER
Secondary Phone
6082769191
Graduation Year
1975 (51 years ago)
PAC ID
9537171392
Group Practice PAC ID
1850285826
Professional Enrollment ID
I20060615000317
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

Provider Addresses for MS. NANCY J LEFF (LCSW)

  • 2709 MARSHALL CT

    MADISON, WI 537052255

    Phone: (608) 231-3191

    Fax: (608) 231-3108

    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)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

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.

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

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 53705)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 1850285826View full group profile
NameSpecialtyState
Marriage And Family TherapistWI
-WI
Mental Health CounselorWI
Mental Health CounselorWI
P S Y C H I A T R YWI
Clinical Social WorkerWI
Clinical PsychologistWI
-WI
-WI
-WI

Reviews

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Frequently asked questions

Can I use this page to confirm MS. NANCY J LEFF (LCSW)'s NPI?
Yes. MS. NANCY J LEFF (LCSW) is listed with NPI 1124073499 in the public NPI dataset.
Is MS. NANCY J LEFF (LCSW) listed as active for patients and plans?
The listing shows MS. NANCY J LEFF (LCSW) as active in the NPI system.
What healthcare role does MS. NANCY J LEFF (LCSW) hold?
Scheduling teams often label MS. NANCY J LEFF (LCSW) under Social Worker. Clinical services aligned with this taxonomy classification.
Where should I expect MS. NANCY J LEFF (LCSW) on a map?
Expect Madison, Wisconsin as a primary anchor for MS. NANCY J LEFF (LCSW) unless the record lists multiple sites.
What does 'Individual Provider' mean on this profile?
Entity type tells you whether the number belongs to a person or an organization.

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