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2026 NPPES data Clinical Nurse Specialist NPI 1336719400 APRN AGCNS-BC
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Libbe Marquez, APRN AGCNS-BC

Clinical Nurse Specialist in Tulsa, Oklahoma.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,760 in Clinical Nurse Specialist, 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
161
Medicare Part D claims · 69 beneficiaries · Clinical Nurse Specialist avg: 1K
Generic prescribing
81%
generic claims · 19% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
84/100
▲ 1 pts above national avg 83.5 · Above neutral
Industry payments
$516.5
17 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

Libbe Marquez, APRN AGCNS-BC reported a CMS MIPS final score of 84/100 - above the 83.5 national average - and filed 161 Medicare Part D claims in 2024.

84/100
MIPS score · +1 vs avg
161
Part D claims, 2024
81%
generic prescribing
$516.5
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 Libbe Marquez, APRN AGCNS-BC

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 1336719400), first enumerated 06/30/2021.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 161 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 84/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Hospital affiliations

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

    Source: CMS Care Compare

  • Reported

    Industry payment transparency

    $516.5 in reported industry payments (17 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.

    Source: CMS Open Payments

  • 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 1336719400 · Clinical Nurse Specialist

NPI-10 · ENUM-RECENT · TAX-NARROW · MIPS-INLINE · RX-LIGHT · BOOK-THIN · PHOTO-FINISH

  • NPI-10 1336719400
  • ENUM-RECENT 2021
  • TAX-NARROW 1,760
  • MIPS-INLINE 84/100
  • RX-LIGHT 161
  • BOOK-THIN 71 in Oklahoma
  • PHOTO-FINISH Carla Vandyke · ±0.2

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

Libbe Marquez, APRN AGCNS-BC'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.

84 ≥ 42nd percentile 42% 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%). Below this entry. 80–90: 129,887 measured providers (29%). This entry sits in this band. 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 Libbe Marquez, APRN AGCNS-BC sits

This provider among clinical nurse specialist peers

Across the 132 clinical nurse specialist providers who report both Medicare Part D prescribing and a MIPS quality score, Libbe Marquez, APRN AGCNS-BC writes more Part D claims than 43% of them and scores higher on MIPS quality than 52% - placing this provider in the lower-volume, high-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 quality0255075100024.448.873.297.7Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 18Libbe Marquez, APRN AGCNS-BC, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 52
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one clinical nurse specialist peer from a representative sample of 60; the gold marker is Libbe Marquez, APRN AGCNS-BC. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Libbe Marquez, APRN AGCNS-BC?

Near national average

NPI registry status

Active

Issued 06/30/2021

NPI 1336719400

Primary specialty

Clinical Nurse Specialist

Niche

1,760 US NPIs in this specialty

Medicare Part D claims

161 84% vs specialty avg

2024 prescription claims

Specialty avg: 1,012

MIPS final score

84/100 0.5 pts vs avg

Above neutral band

vs 83.5 national avg

Specialty distribution in Oklahoma

How Clinical Nurse Specialist compares to other specialties among Oklahoma providers

Oklahoma providers
Case Manager/Care Coordinator9.6%Mental Health Counselor7%Behavior Technician6.6%Peer Specialist5.6%Counselor4.9%Student in an Organized Heal…4.2%Clinical Nurse Specialist0.1%
Largest specialties in Oklahoma (% of in-state providers)

Medicare quality performance, MIPS

Libbe Marquez, APRN AGCNS-BC's 2023 MIPS final score plotted against the Clinical Nurse Specialist national average

Near national average
MIPS Final Score
84/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%84%
MIPS final score (Clinical Nurse Specialist) - 84/100 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

12697 E 51ST ST
Tulsa, OK 74146
(918) 505-3200

Provider Details

NPI 1336719400
Specialty Clinical Nurse Specialist
Credentials APRN AGCNS-BC
Gender Female
NPI Issued 06/30/2021

CMS Quality Score (MIPS)

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

84.0337
Final Score
Measured-score avg: 83.5
93.282
Quality
49.1592
Cost
99
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where Libbe Marquez, APRN AGCNS-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.

Oklahoma Cancer Specialists And Research Institute, LLC
Tulsa, OK

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 Libbe Marquez, APRN AGCNS-BC. Source: openpaymentsdata.cms.gov.

Total received

$517

Largest payer

Janssen Biotech, 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 · Typical

Libbe Marquez, APRN AGCNS-BC - brand share 19.0%
Clinical Nurse Specialist average

19% brand-name claims vs 81% generic, on 161 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.

161
Total Claims
$318K
Total Drug Cost
69
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
256.5
Total Day Supply
6,942
Brand vs Generic
19% brand / 81% generic
Brand Drug Cost
$313K
Generic Drug Cost
$5K

Patient Demographics

Average Patient Age
72.8 years
Avg HCC Risk Score
2.07
Gender Split
84% female / 16% male

Top Prescribed Drugs (Medicare Part D)

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

What Libbe Marquez, APRN AGCNS-BC 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
Anastrozole
 31
Letrozole
 15
Exemestane
 12

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

More Clinical Nurse Specialist in OK → All providers in Oklahoma → Compare specialties →

Clinical Nurse Specialist Overview

How Libbe Marquez, APRN AGCNS-BC fits within the Clinical Nurse Specialist landscape nationally.

1,760
Clinical Nurse Specialist Providers in US
51
States with Clinical Nurse Specialist
1,012
Avg Claims per Provider

Libbe Marquez, APRN AGCNS-BC's 161 claims are below the specialty average of 1,012.

Nationwide Clinical Nurse Specialist peers with similar MIPS or enrollment year

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

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (84 here).

Carla Vandyke 83.8 NM Kathleen Lejameyer 83.8 WA Kerstin Lappen 83.5 MN Rachel Kohls 83.4 TX

Same NPPES enumeration year (2021)

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

Danielle Carlson Rochester, MN Francesca Levitt Danville, IN Elyssa Korban Lakeway, TX Claudia Tilley Easton, MD

Nearby Clinical Nurse Specialist Providers in Oklahoma

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

One of 71 Clinical Nurse Specialist providers enrolled in Oklahoma, 5 are shown here.

Joan Adams
APRN-CNS
Oklahoma City, OK
Sandra Attebery
RNC MSN CNSBC CWON C
Muskogee, OK
Denise Bennett
APRN-CNS
Oklahoma City, OK
Stacy Boothe
CNS
Norman, OK
Iris Borem
C.N.S.
Tulsa, OK

Compare Clinical Nurse Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is Libbe Marquez, APRN AGCNS-BC's specialty? ▼
Libbe Marquez, APRN AGCNS-BC specializes in Clinical Nurse Specialist and practices in Tulsa, Oklahoma. Credentials: APRN AGCNS-BC.
How much does Libbe Marquez, APRN AGCNS-BC prescribe under Medicare Part D? ▼
In 2024, Libbe Marquez, APRN AGCNS-BC wrote 161 Medicare Part D claims totaling $318K in drug costs for 69 beneficiaries.
What is Libbe Marquez, APRN AGCNS-BC's Medicare quality score? ▼
Libbe Marquez, APRN AGCNS-BC has a CMS MIPS Final Score of 84/100 (Quality: 93.3, Cost: 49.2). 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 Libbe Marquez, APRN AGCNS-BC located? ▼
Libbe Marquez, APRN AGCNS-BC is located at 12697 E 51ST ST, Tulsa, OK, 74146. Phone: (918) 505-3200.
What is Libbe Marquez, APRN AGCNS-BC's NPI number? ▼
Libbe Marquez, APRN AGCNS-BC's National Provider Identifier (NPI) is 1336719400, issued on 06/30/2021.
Does Libbe Marquez, APRN AGCNS-BC prescribe more brand-name or generic drugs? ▼
Libbe Marquez, APRN AGCNS-BC's prescribing is 19% brand-name and 81% generic drugs by claim count, with $313K in brand drug costs.
How many Clinical Nurse Specialist providers are there in the US? ▼
There are 1,760 Clinical Nurse Specialist providers across 51 states in the US. The average Clinical Nurse Specialist provider writes 1,012 Medicare Part D claims per year.
What drugs does Libbe Marquez, APRN AGCNS-BC prescribe most often? ▼
Based on 2024 Medicare Part D data, Libbe Marquez, APRN AGCNS-BC's most frequently prescribed drugs include Anastrozole, Letrozole, Exemestane. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Libbe Marquez, APRN AGCNS-BC accept Medicare? ▼
Libbe Marquez, APRN AGCNS-BC appears in CMS Medicare data with 161 Part D claims and 69 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Libbe Marquez, APRN AGCNS-BC's credentials? ▼
Libbe Marquez, APRN AGCNS-BC's NPI is 1336719400 with credentials APRN AGCNS-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

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.