2026 NPPES data Acute Care Clinical Nurse Specialist NPI 1437537388 NP
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SHARON HOIER, NP

Acute Care Clinical Nurse Specialist in MISSION VIEJO, California. 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
340
Medicare Part D claims · 281 beneficiaries · Acute Care Clinical Nurse Specialist avg: 773
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

SHARON HOIER, NP filed 340 Medicare Part D claims in 2023 as a Acute Care Clinical Nurse Specialist in MISSION VIEJO, California, prescribing 91% generic.

340
Part D claims, 2023
91%
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.

SHARON HOIER, NP's Medicare Part D volume vs every U.S. prescriber

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

340 Top 43% higher than 57% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 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 SHARON HOIER, NP?

Quality data not reported

NPI registry status

Active

Issued 05/12/2015

NPI 1437537388

Primary specialty

Acute Care Clinical Nurse Specialist

Niche

510 US NPIs in this specialty

Medicare Part D claims

340 56% vs specialty avg

2023 prescription claims

Specialty avg: 773

Specialty distribution in California

How Acute Care Clinical Nurse Specialist compares to other specialties among California providers

California providers

Acute Care Clinical Nurse Specialist share within California

1. Acute Care Clinical Nurse Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Acute Care Clinical Nurse Specialist share within California

Specialty board-certification context

Estimated specialty board-certified rate — Acute Care Clinical Nurse Specialist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Acute Care Clinical Nurse Specialist ABMS/AOA estimate

Est. board-certified rate (Acute Care Clinical Nurse Specialist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Acute Care Clinical Nurse Specialist) — 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).

SHARON HOIER, NP is a Acute Care Clinical Nurse Specialist provider practicing in MISSION VIEJO, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: NP. NPI: 1437537388. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

SHARON HOIER, NP appears in the CMS NPPES registry as a Acute Care Clinical Nurse Specialist provider holding NP credentials at 26522 LA ALAMEDA, MISSION VIEJO, CA, 92691, with a listed phone of (949) 282-1618. NPI 1437537388 was issued on 05/12/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HOIER 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 340 prescription claims written by this provider, covering 281 Medicare beneficiaries and totaling roughly $5K in drug spend, split 9% brand-name and 91% 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.

Acute Care Clinical Nurse Specialist is a narrow specialty nationwide, with 510 enrolled providers across 47 states and an average of 773 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

26522 LA ALAMEDA
MISSION VIEJO, CA 92691

Provider Details

NPI 1437537388
Specialty Acute Care Clinical Nurse Specialist
Credentials NP
Gender Female
NPI Issued 05/12/2015

Hospital and facility affiliations

Facilities where SHARON HOIER, 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.

HMTS INC
COSTA MESA, CA

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 — 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 SHARON HOIER, NP. To verify SHARON HOIER, 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 · Generic-heavy

SHARON HOIER, NP — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 340 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.

340
Total Claims
$5K
Total Drug Cost
281
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
342
Total Day Supply
3,524
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$2K
Generic Drug Cost
$3K
Antibiotic Claims
178

Patient Demographics

Average Patient Age
74.8 years
Avg HCC Risk Score
0.99
Gender Split
70% female / 30% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
72
Paxlovid (Eua)
Nirmatrelvir/Ritonavir
29
Azithromycin
28
Albuterol Sulfate Hfa
Albuterol Sulfate
25
Cephalexin
19
Ciprofloxacin Hcl
19
Mupirocin
18
Neomycin-Polymyxin-Dexameth
Neomycin/Polymyxin B/Dexametha
18
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
13

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

Acute Care Clinical Nurse Specialist Overview

How SHARON HOIER, NP fits within the Acute Care Clinical Nurse Specialist landscape nationally.

510
Acute Care Clinical Nurse Specialist Providers in US
47
States with Acute Care Clinical Nurse Specialist
773
Avg Claims per Provider

SHARON HOIER, NP's 340 claims are below the specialty average of 773.

Nearby Acute Care Clinical Nurse Specialist Providers in California

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

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

Frequently Asked Questions

What is SHARON HOIER, NP's specialty?
SHARON HOIER, NP specializes in Acute Care Clinical Nurse Specialist and practices in MISSION VIEJO, California. Credentials: NP.
How much does SHARON HOIER, NP prescribe under Medicare Part D?
In 2023, SHARON HOIER, NP wrote 340 Medicare Part D claims totaling $5K in drug costs for 281 beneficiaries.
Where is SHARON HOIER, NP located?
SHARON HOIER, NP is located at 26522 LA ALAMEDA, MISSION VIEJO, CA, 92691. Phone: (949) 282-1618.
What is SHARON HOIER, NP's NPI number?
SHARON HOIER, NP's National Provider Identifier (NPI) is 1437537388, issued on 05/12/2015.
Does SHARON HOIER, NP prescribe more brand-name or generic drugs?
SHARON HOIER, NP's prescribing is 9% brand-name and 91% generic drugs by claim count, with $2K in brand drug costs.
How many Acute Care Clinical Nurse Specialist providers are there in the US?
There are 510 Acute Care Clinical Nurse Specialist providers across 47 states in the US. The average Acute Care Clinical Nurse Specialist provider writes 773 Medicare Part D claims per year.
What drugs does SHARON HOIER, NP prescribe most often?
Based on 2023 Medicare Part D data, SHARON HOIER, NP's most frequently prescribed drugs include Amoxicillin-Clavulanate Potass, Paxlovid (Eua), Azithromycin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SHARON HOIER, NP accept Medicare?
SHARON HOIER, NP appears in CMS Medicare data with 340 Part D claims and 281 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SHARON HOIER, NP's credentials?
SHARON HOIER, NP's NPI is 1437537388 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

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