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2026 NPPES data Nurse Practitioner NPI 1215309398 NP
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Charissa Barsos, NP

Nurse Practitioner in Lakeport, California.

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
3K
Medicare Part D claims · 208 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
79%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
73.8/100
▼ 10 pts below national avg 83.5 · Mid-tier
Industry payments
$17.52
1 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Charissa Barsos, NP reported a CMS MIPS final score of 73.8/100 - below the 83.5 national average - and filed 2,949 Medicare Part D claims in 2024.

73.8/100
MIPS score · -10 vs avg
3K
Part D claims, 2024
79%
generic prescribing
$17.52
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.

Federal trust snapshot

What official records show about Charissa Barsos, NP

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1215309398), first enumerated 10/28/2015.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 2,949 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 73.8/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Hospital affiliations

    2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • Reported

    Industry payment transparency

    $17.52 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.

    Source: CMS Open Payments

  • State context

    State board disciplinary context

    California statewide board action statistics are published annually — these figures describe aggregate state activity, not Charissa Barsos, NP's individual license status. Verify directly with the state medical board.

    Source: MBC 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 1215309398 · Nurse Practitioner

NPI-10 · ENUM-MID · TAX-MEGA · MIPS-BELOW · RX-MID · BOOK-MID · PHOTO-FINISH

  • NPI-10 1215309398
  • ENUM-MID 2015
  • TAX-MEGA 90K Nurse Practitioner
  • MIPS-BELOW 73.8/100
  • RX-MID 2,949
  • BOOK-MID 7,120 in California
  • PHOTO-FINISH Jessica Neal · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Charissa Barsos, NP's MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

74 ≥ 11th percentile 11% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). This entry sits in this band. 80–90: 129,887 measured providers (29%). Above this entry. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Charissa Barsos, NP sits

This provider among nurse practitioner peers

Across the 13,205 nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Charissa Barsos, NP writes more Part D claims than 90% of them and scores higher on MIPS quality than 11% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.148.372.496.6Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 45Charissa Barsos, NP, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 11
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one nurse practitioner peer from a representative sample of 60; the gold marker is Charissa Barsos, NP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Charissa Barsos, NP?

Below national average

NPI registry status

Active

Issued 10/28/2015

NPI 1215309398

Primary specialty

Nurse Practitioner

High-volume

89,808 US NPIs in this specialty

Medicare Part D claims

2,949 158% vs specialty avg

2024 prescription claims

Specialty avg: 1,144

MIPS final score

73.8/100 9.7 pts vs avg

Mid-tier band

vs 83.5 national avg

Specialty distribution in California

How Nurse Practitioner compares to other specialties among California providers

California providers
Behavior Technician17.9%Marriage & Family Therapist5.4%Student in an Organized Heal…5.1%Mental Health Counselor3.7%Pharmacist3.4%Clinical Social Worker3.1%Nurse Practitioner0.7%
Largest specialties in California (% of in-state providers)

Medicare quality performance, MIPS

Charissa Barsos, NP's 2023 MIPS final score plotted against the Nurse Practitioner national average

Below national average
MIPS Final Score
73.8/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%73.8%
MIPS final score (Nurse Practitioner) - 73.8/100 vs national avg 83.5
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

925 BEVINS CT
Lakeport, CA 95453
(707) 263-8382

Provider Details

NPI 1215309398
Specialty Nurse Practitioner
Credentials NP
Gender Female
NPI Issued 10/28/2015

CMS Quality Score (MIPS)

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

73.7919
Final Score
Measured-score avg: 83.5
76.8775
Quality
36.9374
Cost
92
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Charissa Barsos, NP 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.

Fast Pace Medical Clinic PLLC
Collinwood, TN
Regents Medical Center PC
Pleasant View, TN

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 Charissa Barsos, NP. Source: openpaymentsdata.cms.gov.

Total received

$18

Largest payer

Novo Nordisk 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.

License & disciplinary context - California MBC 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 ~150K California medical licensees in 2023 - they are NOT specific to Charissa Barsos, NP. To verify Charissa Barsos, NP's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC 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 California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

Charissa Barsos, NP - brand share 18.0%
Nurse Practitioner average

18% brand-name claims vs 79% generic, on 2,949 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.

2,949
Total Claims
$359K
Total Drug Cost
208
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,962.167
Total Day Supply
144,611
Brand vs Generic
18% brand / 79% generic
Brand Drug Cost
$315K
Generic Drug Cost
$34K
Antibiotic Claims
28

Patient Demographics

Average Patient Age
67.5 years
Avg HCC Risk Score
1.35
Gender Split
63% female / 37% male
Age Distribution
<65: 56, 65-74: 106, 75-84: 34, 85+: 12

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Charissa Barsos, NP prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Atorvastatin Calcium
 183
Lisinopril
 117
Levothyroxine Sodium
 115
Ozempic
Semaglutide
91
Pantoprazole Sodium
 90
Amlodipine Besylate
 82
Metformin Hcl
 82
Jardiance
Empagliflozin
79
Losartan Potassium
 75
Montelukast Sodium
 69

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

More Nurse Practitioner in CA → All providers in California → Compare specialties →

Nurse Practitioner Overview

How Charissa Barsos, NP 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

Charissa Barsos, NP's 2,949 claims are above the specialty average of 1,144.

Nationwide Nurse Practitioner peers with similar MIPS or enrollment year

Two federal-record peer sets for Barsos, both outside California so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (73.8 here).

Jacqueline Dotson 73.8 UT Jessica Neal 73.8 WA Lisa Rehberger 73.8 WA Lauren Williams 73.8 OR

Same NPPES enumeration year (2015)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Theresa Latorre-Tegtmeier Dover, DE Kristin Jackson Lake Jackson, TX Samantha Halpern Saint Louis, MO Jennifer Myers Forest City, NC

Nearby Nurse Practitioner Providers in California

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

One of 7,120 Nurse Practitioner providers enrolled in California, 5 are shown here.

Barbara Aaronson
RN/NURSE PRACTITONER
Los Angeles, CA
Albert Aba
AGNP
San Francisco, CA
Venice Ababat
Colton, CA
Martha Ababneh
CNA
El Monte, CA
Chelsea Abad
CRNP, AGPCNP - BC
Duarte, CA

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

Frequently Asked Questions

What is Charissa Barsos, NP's specialty? ▼
Charissa Barsos, NP specializes in Nurse Practitioner and practices in Lakeport, California. Credentials: NP.
How much does Charissa Barsos, NP prescribe under Medicare Part D? ▼
In 2024, Charissa Barsos, NP wrote 2,949 Medicare Part D claims totaling $359K in drug costs for 208 beneficiaries.
What is Charissa Barsos, NP's Medicare quality score? ▼
Charissa Barsos, NP has a CMS MIPS Final Score of 73.8/100 (Quality: 76.9, Cost: 36.9). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Charissa Barsos, NP located? ▼
Charissa Barsos, NP is located at 925 BEVINS CT, Lakeport, CA, 95453. Phone: (707) 263-8382.
What is Charissa Barsos, NP's NPI number? ▼
Charissa Barsos, NP's National Provider Identifier (NPI) is 1215309398, issued on 10/28/2015.
Does Charissa Barsos, NP prescribe more brand-name or generic drugs? ▼
Charissa Barsos, NP's prescribing is 18% brand-name and 79% generic drugs by claim count, with $315K in brand drug costs.
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 Charissa Barsos, NP prescribe most often? ▼
Based on 2024 Medicare Part D data, Charissa Barsos, NP's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Charissa Barsos, NP accept Medicare? ▼
Charissa Barsos, NP appears in CMS Medicare data with 2,949 Part D claims and 208 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Charissa Barsos, NP's credentials? ▼
Charissa Barsos, NP's NPI is 1215309398 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

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.
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 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

Compiled from official public sources by the editorial process.

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.