NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1265968713 APRN
Verify on CMS → Katheryn Ernst, APRN
Nurse Practitioner in Urbana, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 89,808 in 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.
Prescribing volume
222
Medicare Part D claims · 97 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Katheryn Ernst, APRN filed 222 Medicare Part D claims in 2024 as a Nurse Practitioner in Urbana, Illinois, prescribing 91% generic.
- 222
- Part D claims, 2024
- 91%
- generic prescribing
- ≥48th
- pct by Part D claim volume (lower-bound band)
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 Katheryn Ernst, APRN
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1265968713), first enumerated 05/03/2017.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 222 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not Katheryn Ernst, APRN's individual license status. Verify directly with the state medical board.
Source: IDFPR annual report 2023
- 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 1265968713 · Nurse Practitioner
NPI-10 · ENUM-RECENT · TAX-MEGA · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1265968713
- ENUM-RECENT 2017
- TAX-MEGA 90K Nurse Practitioner
- RX-LIGHT 222
- BOOK-LIGHT 4,005 in Illinois
- PHOTO-ENUM Andrew Collins, APRN · 2017
Katheryn Ernst, APRN's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
222 ≥ 48th percentile 48% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Katheryn Ernst, APRN?
Quality data not reportedPrimary specialty
Nurse Practitioner
Medicare Part D claims
222 81% vs specialty avg
Specialty distribution in Illinois
How Nurse Practitioner compares to other specialties among Illinois 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 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 | 1265968713 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | APRN |
| Gender | Female |
| NPI Issued | 05/03/2017 |
Hospital and facility affiliations
Facilities where Katheryn Ernst, APRN 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.
Carle Health Care Incorporated
Urbana, IL
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Katheryn Ernst, APRN. To verify Katheryn Ernst, APRN'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 · Generic-heavy
Katheryn Ernst, APRN - brand share 9.0%
Nurse Practitioner average
9% brand-name claims vs 91% generic, on 222 2024 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 2024.
222
Total Claims
$10K
Total Drug Cost
97
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 265.433
- Total Day Supply
- 4,469
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $6K
- Generic Drug Cost
- $4K
- Opioid Claims
- 69 (31.1% rate)
- Antibiotic Claims
- 11
Patient Demographics
- Average Patient Age
- 72.7 years
- Avg HCC Risk Score
- 1.23
- Gender Split
- 100% female / 0% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Katheryn Ernst, APRN prescribes most
Top Medicare Part D drugs by claim count, 2024
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
34 claims
- Oxycodone Hcl
Oxycodone Hcl
26 claims
- Eliquis
Eliquis
14 claims
- Clobetasol Propion… 13
Clobetasol Propionate
13 claims
- Medroxyprogesteron… 13
Medroxyprogesterone Acetate
13 claims
- Estradiol (Twice W… 12
Estradiol (Twice Weekly)
12 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 34 |
| Oxycodone Hcl | 26 |
| Eliquis Apixaban | 14 |
| Clobetasol Propionate | 13 |
| Medroxyprogesterone Acetate | 13 |
| Estradiol (Twice Weekly) Estradiol | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Katheryn Ernst, APRN fits within the Nurse Practitioner landscape nationally.
89,808
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,144
Avg Claims per Provider
Katheryn Ernst, APRN's 222 claims are below the specialty average of 1,144.
Nationwide Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Ernst, both outside Illinois so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2017)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Nurse Practitioner Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Ernst.
One of 4,005 Nurse Practitioner providers enrolled in Illinois, 5 are shown here.
Janice Abadilla
FNP-BC
Peoria, IL
Roseviminda Abano
CNP
Gurnee, IL
Philomena Abebe
Park Ridge, IL
Milagros Abellera
APN
Chicago, IL
Edwina Abloh
APN-CNP
Skokie, IL
Compare Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Katheryn Ernst, APRN's specialty? ▼
Katheryn Ernst, APRN specializes in Nurse Practitioner and practices in Urbana, Illinois. Credentials: APRN.
How much does Katheryn Ernst, APRN prescribe under Medicare Part D? ▼
In 2024, Katheryn Ernst, APRN wrote 222 Medicare Part D claims totaling $10K in drug costs for 97 beneficiaries.
Where is Katheryn Ernst, APRN located? ▼
Katheryn Ernst, APRN is located at 611 W PARK ST, Urbana, IL, 61801. Phone: (217) 383-3440.
What is Katheryn Ernst, APRN's NPI number? ▼
Katheryn Ernst, APRN's National Provider Identifier (NPI) is 1265968713, issued on 05/03/2017.
Does Katheryn Ernst, APRN prescribe more brand-name or generic drugs? ▼
Katheryn Ernst, APRN's prescribing is 9% brand-name and 91% generic drugs by claim count, with $6K in brand drug costs.
Does Katheryn Ernst, APRN prescribe opioids? ▼
Yes, Katheryn Ernst, APRN had 69 opioid claims in 2024 with an opioid prescribing rate of 31.1%.
How many Nurse Practitioner providers are there in the US? ▼
There are 89,808 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,144 Medicare Part D claims per year.
What drugs does Katheryn Ernst, APRN prescribe most often? ▼
Based on 2024 Medicare Part D data, Katheryn Ernst, APRN's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Oxycodone Hcl, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Katheryn Ernst, APRN accept Medicare? ▼
Katheryn Ernst, APRN appears in CMS Medicare data with 222 Part D claims and 97 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Katheryn Ernst, APRN's credentials? ▼
Katheryn Ernst, APRN's NPI is 1265968713 with credentials APRN. 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.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). 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 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.