2026 NPPES data Family Nurse Practitioner NPI 1578951752 FNP
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JANEL CLARK, FNP

Family Nurse Practitioner in GRANITE CITY, Illinois. 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
678
Medicare Part D claims · 85 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$453.57
24 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

JANEL CLARK, FNP filed 678 Medicare Part D claims in 2023 as a Family Nurse Practitioner in GRANITE CITY, Illinois, prescribing 89% generic.

678
Part D claims, 2023
89%
generic prescribing
$453.57
industry payments (Sunshine Act)

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.

JANEL CLARK, FNP's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

678 Top 31% higher than 69% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about JANEL CLARK, FNP?

Quality data not reported

NPI registry status

Active

Issued 12/22/2014

NPI 1578951752

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

678 45% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

Specialty distribution in Illinois

How Family Nurse Practitioner compares to other specialties among Illinois providers

Illinois providers

Family Nurse Practitioner share within Illinois

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Family 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).

JANEL CLARK, FNP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding FNP credentials at 2166 MADISON AVE, GRANITE CITY, IL, 62040, with a listed phone of (618) 452-4969. NPI 1578951752 was issued on 12/22/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CLARK 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 678 prescription claims written by this provider, covering 85 Medicare beneficiaries and totaling roughly $179K in drug spend, split 11% brand-name and 89% 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.

Family Nurse Practitioner is a high-volume specialty nationwide, with 209,817 enrolled providers across 56 states and an average of 1,222 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

2166 MADISON AVE
GRANITE CITY, IL 62040

Provider Details

NPI 1578951752
Specialty Family Nurse Practitioner
Credentials FNP
Gender Female
NPI Issued 12/22/2014

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 JANEL CLARK, FNP. Source: openpaymentsdata.cms.gov.

Total received

$454

Largest payer

Neurocrine Biosciences, 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.

License & disciplinary context — Illinois IDFPR 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 — they are NOT specific to JANEL CLARK, FNP. To verify JANEL CLARK, FNP's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases

IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

JANEL CLARK, FNP — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 678 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.

678
Total Claims
$179K
Total Drug Cost
85
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
741
Total Day Supply
21,312
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$153K
Generic Drug Cost
$26K

Patient Demographics

Average Patient Age
53.4 years
Avg HCC Risk Score
1.47
Gender Split
64% female / 36% male
Age Distribution
<65: 66, 65-74: 17, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What JANEL CLARK, FNP prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Aripiprazole
55
Trazodone Hcl
40
Lamotrigine
36
Hydroxyzine Pamoate
32
Sertraline Hcl
28
Buspirone Hcl
26
Duloxetine Hcl
26
Diazepam
24
Quetiapine Fumarate Er
Quetiapine Fumarate
23
Escitalopram Oxalate
22

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

Family Nurse Practitioner Overview

How JANEL CLARK, FNP fits within the Family Nurse Practitioner landscape nationally.

209,817
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider

JANEL CLARK, FNP's 678 claims are below the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Illinois

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

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

Frequently Asked Questions

What is JANEL CLARK, FNP's specialty?
JANEL CLARK, FNP specializes in Family Nurse Practitioner and practices in GRANITE CITY, Illinois. Credentials: FNP.
How much does JANEL CLARK, FNP prescribe under Medicare Part D?
In 2023, JANEL CLARK, FNP wrote 678 Medicare Part D claims totaling $179K in drug costs for 85 beneficiaries.
Where is JANEL CLARK, FNP located?
JANEL CLARK, FNP is located at 2166 MADISON AVE, GRANITE CITY, IL, 62040. Phone: (618) 452-4969.
What is JANEL CLARK, FNP's NPI number?
JANEL CLARK, FNP's National Provider Identifier (NPI) is 1578951752, issued on 12/22/2014.
Does JANEL CLARK, FNP prescribe more brand-name or generic drugs?
JANEL CLARK, FNP's prescribing is 11% brand-name and 89% generic drugs by claim count, with $153K in brand drug costs.
How many Family Nurse Practitioner providers are there in the US?
There are 209,817 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
What drugs does JANEL CLARK, FNP prescribe most often?
Based on 2023 Medicare Part D data, JANEL CLARK, FNP's most frequently prescribed drugs include Aripiprazole, Trazodone Hcl, Lamotrigine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JANEL CLARK, FNP accept Medicare?
JANEL CLARK, FNP appears in CMS Medicare data with 678 Part D claims and 85 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JANEL CLARK, FNP's credentials?
JANEL CLARK, FNP's NPI is 1578951752 with credentials FNP. 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