NPI registry status
Active
2026 NPPES data Gerontology Nurse Practitioner NPI 1174554448
Verify on CMS → Lesley Cook
Gerontology Nurse Practitioner in Sioux Falls, South Dakota.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,056 in Gerontology Nurse Practitioner, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Industry payments
$14.48
1 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Lesley Cook is a Gerontology Nurse Practitioner in Sioux Falls, South Dakota, listed in the federal CMS National Provider Identifier registry.
- $14.48
- industry payments (Sunshine Act)
- #151
- Gerontology Nurse Practitioner rank among South Dakota specialties
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Lesley Cook
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1174554448), first enumerated 07/05/2006.
Source: CMS NPPES
- Not in federal data
Medicare Part D participation
No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).
Source: CMS Part D Prescriber PUF
- Reported
Industry payment transparency
$14.48 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1174554448 · Gerontology Nurse Practitioner
NPI-10 · ENUM-LEGACY · TAX-MID · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1174554448
- ENUM-LEGACY 2006
- TAX-MID 10K Gerontology Nurse
- RX-NONE No Part D
- BOOK-THIN 6 in South Dakota
- PHOTO-ENUM Janine Overcash, APR… · 2006
What does the federal data show about Lesley Cook?
Quality data not reportedPrimary specialty
Gerontology Nurse Practitioner
Specialty distribution in South Dakota
How Gerontology Nurse Practitioner compares to other specialties among South Dakota providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Gerontology Nurse Practitioner. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1174554448 |
|---|---|
| Specialty | Gerontology Nurse Practitioner |
| Gender | Female |
| NPI Issued | 07/05/2006 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Lesley Cook. Source: openpaymentsdata.cms.gov.
Total received
$14
Largest payer
Sumitomo Pharma America, Inc.
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Gerontology Nurse Practitioner Overview
How Lesley Cook fits within the Gerontology Nurse Practitioner landscape nationally.
10,056
Gerontology Nurse Practitioner Providers in US
54
States with Gerontology Nurse Practitioner
1,350
Avg Claims per Provider
Nationwide Gerontology Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Cook, both outside South Dakota so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Gerontology Nurse Practitioner Providers in South Dakota
Other clinicians with the same primary specialty enrolled in South Dakota, drawn from the same CMS NPPES roster as Cook.
One of 6 Gerontology Nurse Practitioner providers enrolled in South Dakota, 5 are shown here.
Jenny Hayashi
APRN
Hot Springs, SD
Dr. Anasara Henry
DNP, AGPCNP-BC
Sioux Falls, SD
Sarah Jauer
ARNP
Dakota Dunes, SD
Joshua Katz
CNP
Sioux Falls, SD
Nicole Mazourek
Sioux Falls, SD
Compare Gerontology Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Lesley Cook's specialty? ▼
Lesley Cook specializes in Gerontology Nurse Practitioner and practices in Sioux Falls, South Dakota.
Where is Lesley Cook located? ▼
Lesley Cook is located at 2100 S MARION RD, Sioux Falls, SD, 57106. Phone: (605) 322-1010.
What is Lesley Cook's NPI number? ▼
Lesley Cook's National Provider Identifier (NPI) is 1174554448, issued on 07/05/2006.
How many Gerontology Nurse Practitioner providers are there in the US? ▼
There are 10,056 Gerontology Nurse Practitioner providers across 54 states in the US. The average Gerontology Nurse Practitioner provider writes 1,350 Medicare Part D claims per year.
Does Lesley Cook accept Medicare? ▼
Lesley Cook appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Lesley Cook's credentials? ▼
Lesley Cook's NPI is 1174554448. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.