2026 NPPES data Registered Nurse NPI 1679001192 AGNP
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JENNIFER CLARK, AGNP

Registered Nurse in SISSETON, South Dakota. 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
2K
Medicare Part D claims · 196 beneficiaries · Registered Nurse avg: 1K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$11.82
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: JENNIFER CLARK, AGNP is a Registered Nurse ([object Object]) practicing in SISSETON, South Dakota with a Medicare Part D prescribing footprint of 2K claims across 196 beneficiaries — 16% brand-name prescribing . Industry payments of $11.82 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: JENNIFER CLARK, AGNP filed 2,402 Medicare Part D claims in 2023 across SISSETON, South Dakota. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

JENNIFER CLARK, AGNP at a glance

Quality data not reported

NPI registry status

Active

Issued 05/28/2017

NPI 1679001192

Primary specialty

Registered Nurse

High-volume

175,652 US NPIs in this specialty

Medicare Part D claims

2,402 140% vs specialty avg

2023 prescription claims

Specialty avg: 1,000

Specialty distribution in South Dakota

How Registered Nurse compares to other specialties among South Dakota providers

South Dakota providers

Registered Nurse share within South Dakota

1. Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Registered Nurse share within South Dakota

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Registered Nurse) — 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).

JENNIFER CLARK, AGNP is a Registered Nurse provider practicing in SISSETON, South Dakota, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: AGNP. NPI: 1679001192. 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.

JENNIFER CLARK, AGNP appears in the CMS NPPES registry as a Registered Nurse provider holding AGNP credentials at 100 LAKE TRAVERSE DR, SISSETON, SD, 57262, with a listed phone of (605) 698-7606. NPI 1679001192 was issued on 05/28/2017. 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 2,402 prescription claims written by this provider, covering 196 Medicare beneficiaries and totaling roughly $383K in drug spend, split 16% brand-name and 84% generic by claim count, with an opioid prescribing rate of 0.7%. 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.

Registered Nurse is a high-volume specialty nationwide, with 175,652 enrolled providers across 56 states and an average of 1,000 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

100 LAKE TRAVERSE DR
SISSETON, SD 57262

Provider Details

NPI 1679001192
Specialty Registered Nurse
Credentials AGNP
Gender Female
NPI Issued 05/28/2017

Hospital and facility affiliations

Facilities where JENNIFER CLARK, AGNP 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.

WOODROW WILSON KEEBLE MEMORIAL HEALTH CARE CENTER
SISSETON, SD

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 JENNIFER CLARK, AGNP. Source: openpaymentsdata.cms.gov.

Total received

$12

Largest payer

Organon Llc

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

JENNIFER CLARK, AGNP — brand share 16.0%
Specialty average (est.)

16% brand-name claims vs 84% generic, on 2,402 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.

2,402
Total Claims
$383K
Total Drug Cost
196
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,462
Total Day Supply
69,086
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$351K
Generic Drug Cost
$31K
Opioid Claims
16 (0.7% rate)
Antibiotic Claims
38

Patient Demographics

Average Patient Age
72.6 years
Avg HCC Risk Score
2.02
Gender Split
64% female / 36% male
Age Distribution
<65: 35, 65-74: 83, 75-84: 45, 85+: 33

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Lisinopril
108
Amlodipine Besylate
82
Losartan Potassium
78
Atorvastatin Calcium
74
Hydrochlorothiazide
63
Metformin Hcl
63
Metoprolol Succinate
63
Gabapentin
55
Ibuprofen
54
Omeprazole
50

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

Registered Nurse Overview

How JENNIFER CLARK, AGNP fits within the Registered Nurse landscape nationally.

175,652
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider

JENNIFER CLARK, AGNP's 2,402 claims are above the specialty average of 1,000.

Nearby Registered Nurse Providers in South Dakota

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

Compare Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is JENNIFER CLARK, AGNP's specialty?
JENNIFER CLARK, AGNP specializes in Registered Nurse and practices in SISSETON, South Dakota. Credentials: AGNP.
How much does JENNIFER CLARK, AGNP prescribe under Medicare Part D?
In 2023, JENNIFER CLARK, AGNP wrote 2,402 Medicare Part D claims totaling $383K in drug costs for 196 beneficiaries.
Where is JENNIFER CLARK, AGNP located?
JENNIFER CLARK, AGNP is located at 100 LAKE TRAVERSE DR, SISSETON, SD, 57262. Phone: (605) 698-7606.
What is JENNIFER CLARK, AGNP's NPI number?
JENNIFER CLARK, AGNP's National Provider Identifier (NPI) is 1679001192, issued on 05/28/2017.
Does JENNIFER CLARK, AGNP prescribe more brand-name or generic drugs?
JENNIFER CLARK, AGNP's prescribing is 16% brand-name and 84% generic drugs by claim count, with $351K in brand drug costs.
Does JENNIFER CLARK, AGNP prescribe opioids?
Yes, JENNIFER CLARK, AGNP had 16 opioid claims in 2023 with an opioid prescribing rate of 0.7%.
How many Registered Nurse providers are there in the US?
There are 175,652 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,000 Medicare Part D claims per year.
What drugs does JENNIFER CLARK, AGNP prescribe most often?
Based on 2023 Medicare Part D data, JENNIFER CLARK, AGNP's most frequently prescribed drugs include Lisinopril, Amlodipine Besylate, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JENNIFER CLARK, AGNP accept Medicare?
JENNIFER CLARK, AGNP appears in CMS Medicare data with 2,402 Part D claims and 196 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JENNIFER CLARK, AGNP's credentials?
JENNIFER CLARK, AGNP's NPI is 1679001192 with credentials AGNP. 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