2026 NPPES data Gerontology Nurse Practitioner NPI 1144771692 FNP
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MISTY WERNSMAN, FNP

Gerontology Nurse Practitioner in MOUNT VERNON, 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
12K
Medicare Part D claims · 326 beneficiaries · Gerontology Nurse Practitioner avg: 1K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

MISTY WERNSMAN, FNP filed 11,743 Medicare Part D claims in 2023 as a Gerontology Nurse Practitioner in MOUNT VERNON, Illinois, prescribing 87% generic.

12K
Part D claims, 2023
87%
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.

MISTY WERNSMAN, FNP's Medicare Part D volume vs every U.S. prescriber

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

11,743 Top 2% higher than 98% 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%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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 MISTY WERNSMAN, FNP?

Quality data not reported

NPI registry status

Active

Issued 10/19/2016

NPI 1144771692

Primary specialty

Gerontology Nurse Practitioner

Mid-sized

9,625 US NPIs in this specialty

Medicare Part D claims

11,743 815% vs specialty avg

2023 prescription claims

Specialty avg: 1,283

Specialty distribution in Illinois

How Gerontology Nurse Practitioner compares to other specialties among Illinois providers

Illinois providers

Gerontology Nurse Practitioner share within Illinois

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

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).

MISTY WERNSMAN, FNP appears in the CMS NPPES registry as a Gerontology Nurse Practitioner provider holding FNP credentials at 1 GOOD SAMARITAN WAY, MOUNT VERNON, IL, 62864, with a listed phone of (618) 242-4600. NPI 1144771692 was issued on 10/19/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WERNSMAN 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 11,743 prescription claims written by this provider, covering 326 Medicare beneficiaries and totaling roughly $634K in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 4.7%. 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.

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

1 GOOD SAMARITAN WAY
MOUNT VERNON, IL 62864

Provider Details

NPI 1144771692
Specialty Gerontology Nurse Practitioner
Credentials FNP
Gender Female
NPI Issued 10/19/2016

Hospital and facility affiliations

Facilities where MISTY WERNSMAN, FNP 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.

PHYSICIAN SERVICES CORPORATION OF SOUTHERN ILLINOIS INC
CENTRALIA, 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 MISTY WERNSMAN, FNP. To verify MISTY WERNSMAN, 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

MISTY WERNSMAN, FNP — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 11,743 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.

11,743
Total Claims
$634K
Total Drug Cost
326
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
11,830
Total Day Supply
203,307
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$357K
Generic Drug Cost
$268K
Opioid Claims
547 (4.7% rate)
Antibiotic Claims
423

Patient Demographics

Average Patient Age
75.8 years
Avg HCC Risk Score
2.61
Gender Split
63% female / 37% male
Age Distribution
<65: 57, 65-74: 83, 75-84: 94, 85+: 92

Top Prescribed Drugs (Medicare Part D)

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

What MISTY WERNSMAN, 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
Potassium Chloride
569
Sertraline Hcl
439
Furosemide
421
Levothyroxine Sodium
409
Atorvastatin Calcium
395
Famotidine
319
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
249
Amlodipine Besylate
246
Risperidone
209
Duloxetine Hcl
202

* 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 MISTY WERNSMAN, FNP 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

MISTY WERNSMAN, FNP's 11,743 claims are above the specialty average of 1,283.

Nearby Gerontology Nurse Practitioner Providers in Illinois

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

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

Frequently Asked Questions

What is MISTY WERNSMAN, FNP's specialty?
MISTY WERNSMAN, FNP specializes in Gerontology Nurse Practitioner and practices in MOUNT VERNON, Illinois. Credentials: FNP.
How much does MISTY WERNSMAN, FNP prescribe under Medicare Part D?
In 2023, MISTY WERNSMAN, FNP wrote 11,743 Medicare Part D claims totaling $634K in drug costs for 326 beneficiaries.
Where is MISTY WERNSMAN, FNP located?
MISTY WERNSMAN, FNP is located at 1 GOOD SAMARITAN WAY, MOUNT VERNON, IL, 62864. Phone: (618) 242-4600.
What is MISTY WERNSMAN, FNP's NPI number?
MISTY WERNSMAN, FNP's National Provider Identifier (NPI) is 1144771692, issued on 10/19/2016.
Does MISTY WERNSMAN, FNP prescribe more brand-name or generic drugs?
MISTY WERNSMAN, FNP's prescribing is 13% brand-name and 87% generic drugs by claim count, with $357K in brand drug costs.
Does MISTY WERNSMAN, FNP prescribe opioids?
Yes, MISTY WERNSMAN, FNP had 547 opioid claims in 2023 with an opioid prescribing rate of 4.7%.
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 MISTY WERNSMAN, FNP prescribe most often?
Based on 2023 Medicare Part D data, MISTY WERNSMAN, FNP's most frequently prescribed drugs include Potassium Chloride, Sertraline Hcl, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MISTY WERNSMAN, FNP accept Medicare?
MISTY WERNSMAN, FNP appears in CMS Medicare data with 11,743 Part D claims and 326 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MISTY WERNSMAN, FNP's credentials?
MISTY WERNSMAN, FNP's NPI is 1144771692 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