2026 NPPES data Critical Care Medicine Nurse Practitioner NPI 1154953214 APRN, MSN, AGACNP-BC
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SHANNA ROARK, APRN, MSN, AGACNP-BC

Critical Care Medicine Nurse Practitioner in SHENANDOAH, Texas. 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
448
Medicare Part D claims · 205 beneficiaries · Critical Care Medicine Nurse Practitioner avg: 426
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

SHANNA ROARK, APRN, MSN, AGACNP-BC filed 448 Medicare Part D claims in 2023 as a Critical Care Medicine Nurse Practitioner in SHENANDOAH, Texas, prescribing 90% generic.

448
Part D claims, 2023
90%
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.

SHANNA ROARK, APRN, MSN, AGACNP-BC's Medicare Part D volume vs every U.S. prescriber

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

448 Top 38% higher than 62% 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%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 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 SHANNA ROARK, APRN, MSN, AGACNP-BC?

Quality data not reported

NPI registry status

Active

Issued 02/06/2020

NPI 1154953214

Primary specialty

Critical Care Medicine Nurse Practitioner

Niche

1,410 US NPIs in this specialty

Medicare Part D claims

448 5% vs specialty avg

2023 prescription claims

Specialty avg: 426

Specialty distribution in Texas

How Critical Care Medicine Nurse Practitioner compares to other specialties among Texas providers

Texas providers

Critical Care Medicine Nurse Practitioner share within Texas

1. Critical Care Medicine Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Critical Care Medicine Nurse Practitioner share within Texas

Specialty board-certification context

Estimated specialty board-certified rate — Critical Care Medicine Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Critical Care Medicine Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Critical Care Medicine Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Critical Care Medicine 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).

SHANNA ROARK, APRN, MSN, AGACNP-BC appears in the CMS NPPES registry as a Critical Care Medicine Nurse Practitioner provider holding APRN, MSN, AGACNP-BC credentials at 1111 MEDICAL PLAZA DR STE 250, SHENANDOAH, TX, 77380, with a listed phone of (281) 296-8788. NPI 1154953214 was issued on 02/06/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ROARK 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 448 prescription claims written by this provider, covering 205 Medicare beneficiaries and totaling roughly $21K in drug spend, split 10% brand-name and 90% 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.

Critical Care Medicine Nurse Practitioner is a narrow specialty nationwide, with 1,410 enrolled providers across 50 states and an average of 426 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

1111 MEDICAL PLAZA DR STE 250
SHENANDOAH, TX 77380

Provider Details

NPI 1154953214
Specialty Critical Care Medicine Nurse Practitioner
Credentials APRN, MSN, AGACNP-BC
Gender Female
NPI Issued 02/06/2020

Hospital and facility affiliations

Facilities where SHANNA ROARK, APRN, MSN, AGACNP-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.

MEMORIAL HERMANN MEDICAL GROUP
HOUSTON, TX

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 — Texas TMB 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 ~77K Texas medical licensees in 2023 — they are NOT specific to SHANNA ROARK, APRN, MSN, AGACNP-BC. To verify SHANNA ROARK, APRN, MSN, AGACNP-BC's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB 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 Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

SHANNA ROARK, APRN, MSN, AGACNP-BC — brand share 10.0%
Specialty average (est.)

10% brand-name claims vs 90% generic, on 448 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.

448
Total Claims
$21K
Total Drug Cost
205
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
476
Total Day Supply
9,871
Brand vs Generic
10% brand / 90% generic
Brand Drug Cost
$16K
Generic Drug Cost
$5K
Antibiotic Claims
88

Patient Demographics

Average Patient Age
75.8 years
Avg HCC Risk Score
2.26
Gender Split
66% female / 34% male
Age Distribution
<65: 22, 65-74: 65, 75-84: 84, 85+: 34

Top Prescribed Drugs (Medicare Part D)

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

What SHANNA ROARK, APRN, MSN, AGACNP-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
Cefdinir
34
Potassium Chloride
26
Pantoprazole Sodium
21
Furosemide
20
Atorvastatin Calcium
16
Gabapentin
14
Montelukast Sodium
14
Xarelto
Rivaroxaban
14
Amlodipine Besylate
13
Ciprofloxacin Hcl
12

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

Critical Care Medicine Nurse Practitioner Overview

How SHANNA ROARK, APRN, MSN, AGACNP-BC fits within the Critical Care Medicine Nurse Practitioner landscape nationally.

1,410
Critical Care Medicine Nurse Practitioner Providers in US
50
States with Critical Care Medicine Nurse Practitioner
426
Avg Claims per Provider

SHANNA ROARK, APRN, MSN, AGACNP-BC's 448 claims are above the specialty average of 426.

Nearby Critical Care Medicine Nurse Practitioner Providers in Texas

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

Compare Critical Care Medicine Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is SHANNA ROARK, APRN, MSN, AGACNP-BC's specialty?
SHANNA ROARK, APRN, MSN, AGACNP-BC specializes in Critical Care Medicine Nurse Practitioner and practices in SHENANDOAH, Texas. Credentials: APRN, MSN, AGACNP-BC.
How much does SHANNA ROARK, APRN, MSN, AGACNP-BC prescribe under Medicare Part D?
In 2023, SHANNA ROARK, APRN, MSN, AGACNP-BC wrote 448 Medicare Part D claims totaling $21K in drug costs for 205 beneficiaries.
Where is SHANNA ROARK, APRN, MSN, AGACNP-BC located?
SHANNA ROARK, APRN, MSN, AGACNP-BC is located at 1111 MEDICAL PLAZA DR STE 250, SHENANDOAH, TX, 77380. Phone: (281) 296-8788.
What is SHANNA ROARK, APRN, MSN, AGACNP-BC's NPI number?
SHANNA ROARK, APRN, MSN, AGACNP-BC's National Provider Identifier (NPI) is 1154953214, issued on 02/06/2020.
Does SHANNA ROARK, APRN, MSN, AGACNP-BC prescribe more brand-name or generic drugs?
SHANNA ROARK, APRN, MSN, AGACNP-BC's prescribing is 10% brand-name and 90% generic drugs by claim count, with $16K in brand drug costs.
How many Critical Care Medicine Nurse Practitioner providers are there in the US?
There are 1,410 Critical Care Medicine Nurse Practitioner providers across 50 states in the US. The average Critical Care Medicine Nurse Practitioner provider writes 426 Medicare Part D claims per year.
What drugs does SHANNA ROARK, APRN, MSN, AGACNP-BC prescribe most often?
Based on 2023 Medicare Part D data, SHANNA ROARK, APRN, MSN, AGACNP-BC's most frequently prescribed drugs include Cefdinir, Potassium Chloride, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SHANNA ROARK, APRN, MSN, AGACNP-BC accept Medicare?
SHANNA ROARK, APRN, MSN, AGACNP-BC appears in CMS Medicare data with 448 Part D claims and 205 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SHANNA ROARK, APRN, MSN, AGACNP-BC's credentials?
SHANNA ROARK, APRN, MSN, AGACNP-BC's NPI is 1154953214 with credentials APRN, MSN, AGACNP-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.
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