2026 NPPES data Gerontology Nurse Practitioner NPI 1659826683 NP
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ICELA WILLIAMS, NP

Gerontology Nurse Practitioner in LAFAYETTE, Louisiana. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
189
Medicare Part D claims · 37 beneficiaries · Gerontology Nurse Practitioner avg: 1K
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$160.41
3 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ICELA WILLIAMS, NP is a Gerontology Nurse Practitioner ([object Object]) practicing in LAFAYETTE, Louisiana with a Medicare Part D prescribing footprint of 189 claims across 37 beneficiaries — 15% brand-name prescribing . Industry payments of $160.41 across 3 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ICELA WILLIAMS, NP filed 189 Medicare Part D claims in 2023 across LAFAYETTE, Louisiana. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

ICELA WILLIAMS, NP at a glance

Quality data not reported

NPI registry status

Active

Issued 08/19/2016

NPI 1659826683

Primary specialty

Gerontology Nurse Practitioner

Mid-sized

9,625 US NPIs in this specialty

Medicare Part D claims

189 85% vs specialty avg

2023 prescription claims

Specialty avg: 1,283

Specialty distribution in Louisiana

How Gerontology Nurse Practitioner compares to other specialties among Louisiana providers

Louisiana providers

Gerontology Nurse Practitioner share within Louisiana

1. Gerontology Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gerontology Nurse Practitioner share within Louisiana

Specialty board-certification context

Estimated specialty board-certified rate — Gerontology Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Gerontology Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Gerontology Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Gerontology Nurse Practitioner) — ABMS / AOA estimate

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).

ICELA WILLIAMS, NP is a Gerontology Nurse Practitioner provider practicing in LAFAYETTE, Louisiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: NP. NPI: 1659826683. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ICELA WILLIAMS, NP appears in the CMS NPPES registry as a Gerontology Nurse Practitioner provider holding NP credentials at 1509 DULLES DR, LAFAYETTE, LA, 70506, with a listed phone of (337) 991-9276. NPI 1659826683 was issued on 08/19/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WILLIAMS most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 189 prescription claims written by this provider, covering 37 Medicare beneficiaries and totaling roughly $15K in drug spend, split 15% brand-name and 85% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Gerontology Nurse Practitioner is a mid-sized specialty nationwide, with 9,625 enrolled providers across 54 states and an average of 1,283 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1509 DULLES DR
LAFAYETTE, LA 70506

Provider Details

NPI 1659826683
Specialty Gerontology Nurse Practitioner
Credentials NP
Gender Female
NPI Issued 08/19/2016

Hospital and facility affiliations

Facilities where ICELA WILLIAMS, NP bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

CH MSSP SERVICES LA LLC
LAFAYETTE, LA
CURANA HEALTH OF LOUISIANA LLC
BATON ROUGE, LA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 ICELA WILLIAMS, NP. Source: openpaymentsdata.cms.gov.

Total received

$160

Largest payer

Otsuka America Pharmaceutical, 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.

Brand vs generic prescribing mix · Typical

ICELA WILLIAMS, NP — brand share 15.0%
Specialty average (est.)

15% brand-name claims vs 85% generic, on 189 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

189
Total Claims
$15K
Total Drug Cost
37
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
189
Total Day Supply
3,106
Brand vs Generic
15% brand / 85% generic
Brand Drug Cost
$13K
Generic Drug Cost
$3K
Antibiotic Claims
20

Patient Demographics

Average Patient Age
75.4 years
Avg HCC Risk Score
2.19
Gender Split
65% female / 35% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Bumetanide
25
Sertraline Hcl
24
Escitalopram Oxalate
19
Gabapentin
18
Furosemide
15

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Gerontology Nurse Practitioner Overview

How ICELA WILLIAMS, NP fits within the Gerontology Nurse Practitioner landscape nationally.

9,625
Gerontology Nurse Practitioner Providers in US
54
States with Gerontology Nurse Practitioner
1,283
Avg Claims per Provider

ICELA WILLIAMS, NP's 189 claims are below the specialty average of 1,283.

Nearby Gerontology Nurse Practitioner Providers in Louisiana

Other clinicians with the same primary specialty enrolled in Louisiana, drawn from the same CMS NPPES roster as WILLIAMS.

Compare Gerontology Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is ICELA WILLIAMS, NP's specialty?
ICELA WILLIAMS, NP specializes in Gerontology Nurse Practitioner and practices in LAFAYETTE, Louisiana. Credentials: NP.
How much does ICELA WILLIAMS, NP prescribe under Medicare Part D?
In 2023, ICELA WILLIAMS, NP wrote 189 Medicare Part D claims totaling $15K in drug costs for 37 beneficiaries.
Where is ICELA WILLIAMS, NP located?
ICELA WILLIAMS, NP is located at 1509 DULLES DR, LAFAYETTE, LA, 70506. Phone: (337) 991-9276.
What is ICELA WILLIAMS, NP's NPI number?
ICELA WILLIAMS, NP's National Provider Identifier (NPI) is 1659826683, issued on 08/19/2016.
Does ICELA WILLIAMS, NP prescribe more brand-name or generic drugs?
ICELA WILLIAMS, NP's prescribing is 15% brand-name and 85% generic drugs by claim count, with $13K in brand drug costs.
How many Gerontology Nurse Practitioner providers are there in the US?
There are 9,625 Gerontology Nurse Practitioner providers across 54 states in the US. The average Gerontology Nurse Practitioner provider writes 1,283 Medicare Part D claims per year.
What drugs does ICELA WILLIAMS, NP prescribe most often?
Based on 2023 Medicare Part D data, ICELA WILLIAMS, NP's most frequently prescribed drugs include Bumetanide, Sertraline Hcl, Escitalopram Oxalate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ICELA WILLIAMS, NP accept Medicare?
ICELA WILLIAMS, NP appears in CMS Medicare data with 189 Part D claims and 37 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ICELA WILLIAMS, NP's credentials?
ICELA WILLIAMS, NP's NPI is 1659826683 with credentials NP. 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

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.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
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 April 2026 (NPPES) / 2023 (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