2026 NPPES data Licensed Practical Nurse NPI 1558411645 NP
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DEBORAH FROWNFELTER, NP

Licensed Practical Nurse in URBANA, 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
853
Medicare Part D claims · 11 beneficiaries · Licensed Practical Nurse avg: 1K
Generic prescribing
81%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

DEBORAH FROWNFELTER, NP filed 853 Medicare Part D claims in 2023 as a Licensed Practical Nurse in URBANA, Illinois, prescribing 81% generic.

853
Part D claims, 2023
81%
generic prescribing

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.

DEBORAH FROWNFELTER, NP's Medicare Part D volume vs every U.S. prescriber

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

853 Top 27% higher than 73% 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%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 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 DEBORAH FROWNFELTER, NP?

Quality data not reported

NPI registry status

Active

Issued 01/11/2007

NPI 1558411645

Primary specialty

Licensed Practical Nurse

High-volume

71,357 US NPIs in this specialty

Medicare Part D claims

853 15% vs specialty avg

2023 prescription claims

Specialty avg: 1,004

Specialty distribution in Illinois

How Licensed Practical Nurse compares to other specialties among Illinois providers

Illinois providers

Licensed Practical Nurse share within Illinois

1. Licensed Practical Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Licensed Practical Nurse share within Illinois

Specialty board-certification context

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

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

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

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

DEBORAH FROWNFELTER, NP is a Licensed Practical Nurse provider practicing in URBANA, Illinois, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: NP. NPI: 1558411645. 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.

DEBORAH FROWNFELTER, NP appears in the CMS NPPES registry as a Licensed Practical Nurse provider holding NP credentials at 1818 E. WINDSOR, URBANA, IL, 61802, with a listed phone of (217) 255-9946. NPI 1558411645 was issued on 01/11/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FROWNFELTER 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 853 prescription claims written by this provider, covering 11 Medicare beneficiaries and totaling roughly $19K in drug spend, split 19% brand-name and 81% 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.

Licensed Practical Nurse is a high-volume specialty nationwide, with 71,357 enrolled providers across 55 states and an average of 1,004 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

1818 E. WINDSOR
URBANA, IL 61802

Provider Details

NPI 1558411645
Specialty Licensed Practical Nurse
Credentials NP
Gender Female
NPI Issued 01/11/2007

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 DEBORAH FROWNFELTER, NP. To verify DEBORAH FROWNFELTER, NP'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

DEBORAH FROWNFELTER, NP — brand share 19.0%
Specialty average (est.)

19% brand-name claims vs 81% generic, on 853 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.

853
Total Claims
$19K
Total Drug Cost
11
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
853
Total Day Supply
5,957
Brand vs Generic
19% brand / 81% generic
Brand Drug Cost
$15K
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
83.1 years
Avg HCC Risk Score
1.54
Age Distribution
<65: 0, 65-74: N/A, 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.

Drug Claims
Donepezil Hcl
159
Eliquis
Apixaban
58
Amlodipine Besylate
53
Levothyroxine Sodium
53
Lisinopril
53
Loperamide
Loperamide Hcl
53
Memantine Hcl
53
Metformin Hcl Er
Metformin Hcl
53
Pravastatin Sodium
53
Ropinirole Hcl
53

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

Licensed Practical Nurse Overview

How DEBORAH FROWNFELTER, NP fits within the Licensed Practical Nurse landscape nationally.

71,357
Licensed Practical Nurse Providers in US
55
States with Licensed Practical Nurse
1,004
Avg Claims per Provider

DEBORAH FROWNFELTER, NP's 853 claims are below the specialty average of 1,004.

Nearby Licensed Practical Nurse Providers in Illinois

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

Compare Licensed Practical Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is DEBORAH FROWNFELTER, NP's specialty?
DEBORAH FROWNFELTER, NP specializes in Licensed Practical Nurse and practices in URBANA, Illinois. Credentials: NP.
How much does DEBORAH FROWNFELTER, NP prescribe under Medicare Part D?
In 2023, DEBORAH FROWNFELTER, NP wrote 853 Medicare Part D claims totaling $19K in drug costs for 11 beneficiaries.
Where is DEBORAH FROWNFELTER, NP located?
DEBORAH FROWNFELTER, NP is located at 1818 E. WINDSOR, URBANA, IL, 61802. Phone: (217) 255-9946.
What is DEBORAH FROWNFELTER, NP's NPI number?
DEBORAH FROWNFELTER, NP's National Provider Identifier (NPI) is 1558411645, issued on 01/11/2007.
Does DEBORAH FROWNFELTER, NP prescribe more brand-name or generic drugs?
DEBORAH FROWNFELTER, NP's prescribing is 19% brand-name and 81% generic drugs by claim count, with $15K in brand drug costs.
How many Licensed Practical Nurse providers are there in the US?
There are 71,357 Licensed Practical Nurse providers across 55 states in the US. The average Licensed Practical Nurse provider writes 1,004 Medicare Part D claims per year.
What drugs does DEBORAH FROWNFELTER, NP prescribe most often?
Based on 2023 Medicare Part D data, DEBORAH FROWNFELTER, NP's most frequently prescribed drugs include Donepezil Hcl, Eliquis, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DEBORAH FROWNFELTER, NP accept Medicare?
DEBORAH FROWNFELTER, NP appears in CMS Medicare data with 853 Part D claims and 11 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DEBORAH FROWNFELTER, NP's credentials?
DEBORAH FROWNFELTER, NP's NPI is 1558411645 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