NPI registry status
Active
2026 NPPES data Oncology Clinical Nurse Specialist NPI 1538255914 PAC
Verify on CMS → Rose Hiu, PAC
Oncology Clinical Nurse Specialist in Duarte, 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 211 in Oncology 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
577
Medicare Part D claims · 87 beneficiaries · Oncology Clinical Nurse Specialist avg: 435
MIPS score
99.1/100
▲ 16 pts above national avg 83.1 · Exceptional
Industry payments
$407.66
18 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Rose Hiu, PAC reported a CMS MIPS final score of 99.1/100 - above the 83.1 national average - and filed 577 Medicare Part D claims in 2023.
- 99.1/100
- MIPS score · +16 vs avg
- 577
- Part D claims, 2023
- $407.66
- 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.
Rose Hiu, PAC's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
99 Top 9% higher than 91% of 477,587 scored providers
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
Where Rose Hiu, PAC sits
This provider among oncology clinical nurse specialist peers
Across the 29 oncology clinical nurse specialist providers who report both Medicare Part D prescribing and a MIPS quality score, Rose Hiu, PAC writes more Part D claims than 69% of them and scores higher on MIPS quality than 83% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one oncology clinical nurse specialist peer from a representative sample of 28; the gold marker is Rose Hiu, PAC. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Rose Hiu, PAC?
High performer (top quartile)Primary specialty
Oncology Clinical Nurse Specialist
Medicare Part D claims
577 33% vs specialty avg
MIPS final score
99.1/100 16 pts vs avg
Specialty distribution in California
How Oncology Clinical Nurse Specialist compares to other specialties among California providers
Medicare quality performance, MIPS
Rose Hiu, PAC's 2023 MIPS final score plotted against the Oncology Clinical Nurse Specialist national average
- MIPS Final Score
- 99.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Oncology Clinical Nurse Specialist) - 99.1/100 vs national avg 83.1
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).
Rose Hiu, PAC appears in the CMS NPPES registry as an Oncology Clinical Nurse Specialist provider holding PAC credentials at 1500 E DUARTE RD, Duarte, CA, 91010, with a listed phone of (626) 359-8111. NPI 1538255914 was issued on 10/05/2006.
Medicare Part D records for calendar year 2023 show 577 prescription claims written by this provider, covering 87 Medicare beneficiaries and totaling roughly $1.5 million in drug spend, with an opioid prescribing rate of 5.9%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 99.1/100 for the 2023 performance year (Quality 85.2), compared with the national average of 83.1.
Oncology Clinical Nurse Specialist is a narrow specialty nationwide, with 211 enrolled providers across 39 states and an average of 435 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
Provider Details
| NPI | 1538255914 |
|---|---|
| Specialty | Oncology Clinical Nurse Specialist |
| Credentials | PAC |
| Gender | Female |
| NPI Issued | 10/05/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
99.1275
Final Score
Avg: 83.1
85.2396
Quality
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Rose Hiu, PAC 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.
City OF Hope Medical Foundation
Duarte, 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).
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 Rose Hiu, PAC. Source: openpaymentsdata.cms.gov.
Total received
$408
Largest payer
BeiGene USA, 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 Rose Hiu, PAC. To verify Rose Hiu, PAC'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
577
Total Claims
$1.5M
Total Drug Cost
87
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 793
- Total Day Supply
- 21,052
- Generic Drug Cost
- $34K
- Opioid Claims
- 34 (5.9% rate)
- Antibiotic Claims
- 45
Patient Demographics
- Average Patient Age
- 72.5 years
- Avg HCC Risk Score
- 3.44
- Gender Split
- 47% female / 53% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Rose Hiu, PAC prescribes most
Top Medicare Part D drugs by claim count, 2023
- Acyclovir
Acyclovir
89 claims
- Pantoprazole Sodium 27
Pantoprazole Sodium
27 claims
- Sulfamethoxazole-T… 24
Sulfamethoxazole-Trimethoprim
24 claims
- Brukinsa 22
Brukinsa
22 claims
- Levetiracetam 21
Levetiracetam
21 claims
- Prednisone 18
Prednisone
18 claims
- Gabapentin 16
Gabapentin
16 claims
- Atovaquone 15
Atovaquone
15 claims
| Drug | Claims |
|---|---|
| Acyclovir | 89 |
| Pantoprazole Sodium | 27 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 24 |
| Brukinsa Zanubrutinib | 22 |
| Levetiracetam | 21 |
| Prednisone | 18 |
| Gabapentin | 16 |
| Atovaquone | 15 |
| Rezurock Belumosudil Mesylate | 15 |
| Ondansetron Hcl | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Oncology Clinical Nurse Specialist Overview
How Rose Hiu, PAC fits within the Oncology Clinical Nurse Specialist landscape nationally.
211
Oncology Clinical Nurse Specialist Providers in US
39
States with Oncology Clinical Nurse Specialist
435
Avg Claims per Provider
Rose Hiu, PAC's 577 claims are above the specialty average of 435.
Nearby Oncology Clinical Nurse Specialist Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Hiu.
Dr. Rose Ambrosino-Cook
RN., MS., CNS., CNP.
Santa Rosa, CA
Dr. Barbara Baker
CNS
Burbank, CA
Dr. Alia Bana
CNS
Santa Clara, CA
Dr. Mc Darryl Banares
MSN,RN
Irvine, CA
Dr. Deborah Christensen
APRN-CNS
Mountain View, CA
Compare Oncology Clinical Nurse Specialist nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Oncology Clinical Nurse Specialist peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Rose Hiu, PAC's specialty? ▼
Rose Hiu, PAC specializes in Oncology Clinical Nurse Specialist and practices in Duarte, California. Credentials: PAC.
How much does Rose Hiu, PAC prescribe under Medicare Part D? ▼
In 2023, Rose Hiu, PAC wrote 577 Medicare Part D claims totaling $1.5M in drug costs for 87 beneficiaries.
What is Rose Hiu, PAC's Medicare quality score? ▼
Rose Hiu, PAC has a CMS MIPS Final Score of 99.1/100 (Quality: 85.2). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Rose Hiu, PAC located? ▼
Rose Hiu, PAC is located at 1500 E DUARTE RD, Duarte, CA, 91010. Phone: (626) 359-8111.
What is Rose Hiu, PAC's NPI number? ▼
Rose Hiu, PAC's National Provider Identifier (NPI) is 1538255914, issued on 10/05/2006.
Does Rose Hiu, PAC prescribe opioids? ▼
Yes, Rose Hiu, PAC had 34 opioid claims in 2023 with an opioid prescribing rate of 5.9%.
How many Oncology Clinical Nurse Specialist providers are there in the US? ▼
There are 211 Oncology Clinical Nurse Specialist providers across 39 states in the US. The average Oncology Clinical Nurse Specialist provider writes 435 Medicare Part D claims per year.
What drugs does Rose Hiu, PAC prescribe most often? ▼
Based on 2023 Medicare Part D data, Rose Hiu, PAC's most frequently prescribed drugs include Acyclovir, Pantoprazole Sodium, Sulfamethoxazole-Trimethoprim. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Rose Hiu, PAC accept Medicare? ▼
Rose Hiu, PAC appears in CMS Medicare data with 577 Part D claims and 87 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rose Hiu, PAC's credentials? ▼
Rose Hiu, PAC's NPI is 1538255914 with credentials PAC. 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 (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
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 May 2026.