2026 NPPES data Family Nurse Practitioner NPI 1497120349 FNP-BC
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CHARLES LARSON, FNP-BC

Family Nurse Practitioner in TWIN FALLS, Idaho. 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
419
Medicare Part D claims · 169 beneficiaries · Family Nurse Practitioner avg: 1K
Generic prescribing
97%
generic claims · 3% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
78.858/100
▼ 4 pts below national avg 83.1 · [object Object]
Industry payments
$31.28
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CHARLES LARSON, FNP-BC reported a CMS MIPS final score of 78.858/100 — below the 83.1 national average — and filed 419 Medicare Part D claims in 2023.

78.858/100
MIPS score · -4 vs avg
419
Part D claims, 2023
97%
generic prescribing
$31.28
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.

CHARLES LARSON, FNP-BC's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

79 27th percentile higher than 27% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

What does the federal data show about CHARLES LARSON, FNP-BC?

Near national average

NPI registry status

Active

Issued 12/03/2015

NPI 1497120349

Primary specialty

Family Nurse Practitioner

High-volume

209,817 US NPIs in this specialty

Medicare Part D claims

419 66% vs specialty avg

2023 prescription claims

Specialty avg: 1,222

MIPS final score

78.858/100 4.24199999999999% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Idaho

How Family Nurse Practitioner compares to other specialties among Idaho providers

Idaho providers

Family Nurse Practitioner share within Idaho

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

Medicare quality performance — MIPS

CHARLES LARSON, FNP-BC's 2023 MIPS final score plotted against the Family Nurse Practitioner national average

Near national average
MIPS Final Score
78.858/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Family Nurse Practitioner) — 78.858/100 vs national avg 83.1

0%100%National avg83%78.9%
MIPS final score (Family Nurse Practitioner) — 78.858/100 vs national avg 83.1

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).

CHARLES LARSON, FNP-BC appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding FNP-BC credentials at 730 N COLLEGE RD STE B, TWIN FALLS, ID, 83301, with a listed phone of (208) 814-7350. NPI 1497120349 was issued on 12/03/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LARSON 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 419 prescription claims written by this provider, covering 169 Medicare beneficiaries and totaling roughly $13K in drug spend, split 3% brand-name and 97% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 78.858/100 for the 2023 performance year (Quality 81.5861, Cost 47.9407), compared with the national average of 83.1.

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

730 N COLLEGE RD STE B
TWIN FALLS, ID 83301

Provider Details

NPI 1497120349
Specialty Family Nurse Practitioner
Credentials FNP-BC
Gender Male
NPI Issued 12/03/2015

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

78.858
Final Score
Avg: 83.1
81.5861
Quality
47.9407
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where CHARLES LARSON, FNP-BC 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.

GEM STATE ENT PLLC
TWIN FALLS, ID

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 CHARLES LARSON, FNP-BC. Source: openpaymentsdata.cms.gov.

Total received

$31

Largest payer

AERIN MEDICAL 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.

Brand vs generic prescribing mix · Generic-heavy

CHARLES LARSON, FNP-BC — brand share 3.0%
Specialty average (est.)

3% brand-name claims vs 97% generic, on 419 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.

419
Total Claims
$13K
Total Drug Cost
169
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
534
Total Day Supply
13,233
Brand vs Generic
3% brand / 97% generic
Brand Drug Cost
$5K
Generic Drug Cost
$9K
Antibiotic Claims
25

Patient Demographics

Average Patient Age
71.7 years
Avg HCC Risk Score
1.10
Gender Split
66% female / 34% male
Age Distribution
<65: 23, 65-74: 79, 75-84: 50, 85+: 17

Top Prescribed Drugs (Medicare Part D)

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

What CHARLES LARSON, FNP-BC 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
Fluticasone Propionate
110
Ipratropium Bromide
61
Omeprazole
53
Prednisone
28
Gabapentin
25
Ofloxacin
22
Pantoprazole Sodium
16
Mometasone Furoate
12
Triamterene-Hydrochlorothiazid
Triamterene/Hydrochlorothiazid
11

* 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 CHARLES LARSON, FNP-BC 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

CHARLES LARSON, FNP-BC's 419 claims are below the specialty average of 1,222.

Nearby Family Nurse Practitioner Providers in Idaho

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

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

Frequently Asked Questions

What is CHARLES LARSON, FNP-BC's specialty?
CHARLES LARSON, FNP-BC specializes in Family Nurse Practitioner and practices in TWIN FALLS, Idaho. Credentials: FNP-BC.
How much does CHARLES LARSON, FNP-BC prescribe under Medicare Part D?
In 2023, CHARLES LARSON, FNP-BC wrote 419 Medicare Part D claims totaling $13K in drug costs for 169 beneficiaries.
What is CHARLES LARSON, FNP-BC's Medicare quality score?
CHARLES LARSON, FNP-BC has a CMS MIPS Final Score of 78.858/100 (Quality: 81.5861, Cost: 47.9407). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CHARLES LARSON, FNP-BC located?
CHARLES LARSON, FNP-BC is located at 730 N COLLEGE RD STE B, TWIN FALLS, ID, 83301. Phone: (208) 814-7350.
What is CHARLES LARSON, FNP-BC's NPI number?
CHARLES LARSON, FNP-BC's National Provider Identifier (NPI) is 1497120349, issued on 12/03/2015.
Does CHARLES LARSON, FNP-BC prescribe more brand-name or generic drugs?
CHARLES LARSON, FNP-BC's prescribing is 3% brand-name and 97% generic drugs by claim count, with $5K 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 CHARLES LARSON, FNP-BC prescribe most often?
Based on 2023 Medicare Part D data, CHARLES LARSON, FNP-BC's most frequently prescribed drugs include Fluticasone Propionate, Ipratropium Bromide, Omeprazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHARLES LARSON, FNP-BC accept Medicare?
CHARLES LARSON, FNP-BC appears in CMS Medicare data with 419 Part D claims and 169 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHARLES LARSON, FNP-BC's credentials?
CHARLES LARSON, FNP-BC's NPI is 1497120349 with credentials FNP-BC. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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