NPI registry status
Active
2026 NPPES data Acute Care Nurse Practitioner NPI 1558944520 NP
Verify on CMS → Yunying Chen, NP
Acute Care Nurse Practitioner in Los Angeles, 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 24,583 in Acute Care 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
540
Medicare Part D claims · 103 beneficiaries · Acute Care Nurse Practitioner avg: 576
MIPS score
86.1/100
▲ 3 pts above national avg 83.1 · Above neutral
Industry payments
$29.7K
61 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Yunying Chen, NP reported a CMS MIPS final score of 86.1/100 - above the 83.1 national average - and filed 540 Medicare Part D claims in 2023.
- 86.1/100
- MIPS score · +3 vs avg
- 540
- Part D claims, 2023
- $29.7K
- 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.
Yunying Chen, NP's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
86 Top 48% higher than 52% 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 Yunying Chen, NP sits
This provider among acute care nurse practitioner peers
Across the 3,864 acute care nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Yunying Chen, NP writes more Part D claims than 76% of them and scores higher on MIPS quality than 50% - 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 acute care nurse practitioner peer from a representative sample of 60; the gold marker is Yunying Chen, NP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Yunying Chen, NP?
High performer (top quartile)Primary specialty
Acute Care Nurse Practitioner
Medicare Part D claims
540 6% vs specialty avg
MIPS final score
86.1/100 3 pts vs avg
Specialty distribution in California
How Acute Care Nurse Practitioner compares to other specialties among California providers
Medicare quality performance, MIPS
Yunying Chen, NP's 2023 MIPS final score plotted against the Acute Care Nurse Practitioner national average
- MIPS Final Score
- 86.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Acute Care Nurse Practitioner) - 86.1/100 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).
Yunying Chen, NP appears in the CMS NPPES registry as a Acute Care Nurse Practitioner provider holding NP credentials at 200 UCLA MEDICAL PLZ, Los Angeles, CA, 90095, with a listed phone of (310) 206-6931. NPI 1558944520 was issued on 04/28/2021.
Medicare Part D records for calendar year 2023 show 540 prescription claims written by this provider, covering 103 Medicare beneficiaries and totaling roughly $1.7 million in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 86.1/100 for the 2023 performance year (Quality 82.9, Cost 66.7), compared with the national average of 83.1.
Acute Care Nurse Practitioner is a mid-sized specialty nationwide, with 24,583 enrolled providers across 53 states and an average of 576 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 | 1558944520 |
|---|---|
| Specialty | Acute Care Nurse Practitioner |
| Credentials | NP |
| Gender | Female |
| NPI Issued | 04/28/2021 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
86.1025
Final Score
Avg: 83.1
82.938
Quality
66.7384
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Yunying Chen, 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.
The Regents OF The University OF California
Los Angeles, 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 Yunying Chen, NP. Source: openpaymentsdata.cms.gov.
Total received
$29.7K
Largest payer
PFIZER INC.
Most common payment type
Travel and Lodging
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 Yunying Chen, NP. To verify Yunying Chen, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
540
Total Claims
$1.7M
Total Drug Cost
103
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 708
- Total Day Supply
- 19,384
- Generic Drug Cost
- $239K
- Antibiotic Claims
- 48
Patient Demographics
- Average Patient Age
- 71.2 years
- Avg HCC Risk Score
- 3.96
- Gender Split
- 43% female / 57% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Yunying Chen, NP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Acyclovir
Acyclovir
79 claims
- Venclexta 31
Venclexta
31 claims
- Pantoprazole Sodium 24
Pantoprazole Sodium
24 claims
- Leucovorin Calcium 23
Leucovorin Calcium
23 claims
- Sulfamethoxazole-T… 22
Sulfamethoxazole-Trimethoprim
22 claims
- Cresemba 21
Cresemba
21 claims
- Allopurinol 19
Allopurinol
19 claims
- Imatinib Mesylate 18
Imatinib Mesylate
18 claims
| Drug | Claims |
|---|---|
| Acyclovir | 79 |
| Venclexta Venetoclax | 31 |
| Pantoprazole Sodium | 24 |
| Leucovorin Calcium | 23 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 22 |
| Cresemba Isavuconazonium Sulfate | 21 |
| Allopurinol | 19 |
| Imatinib Mesylate | 18 |
| Dexamethasone | 16 |
| Atovaquone | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Acute Care Nurse Practitioner Overview
How Yunying Chen, NP fits within the Acute Care Nurse Practitioner landscape nationally.
24,583
Acute Care Nurse Practitioner Providers in US
53
States with Acute Care Nurse Practitioner
576
Avg Claims per Provider
Yunying Chen, NP's 540 claims are below the specialty average of 576.
Nearby Acute Care Nurse Practitioner Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Chen.
Jessica Aaronson
Lynwood, CA
Dr. Naima Abdirahman
NP
Long Beach, CA
Dr. Jenna Abeloe
NP
Ventura, CA
Rhonald Abitona
San Francisco, CA
Dr. Tara Abrams
NP
Los Angeles, CA
Compare Acute Care Nurse Practitioner 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 Acute Care Nurse Practitioner 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 Yunying Chen, NP's specialty? ▼
Yunying Chen, NP specializes in Acute Care Nurse Practitioner and practices in Los Angeles, California. Credentials: NP.
How much does Yunying Chen, NP prescribe under Medicare Part D? ▼
In 2023, Yunying Chen, NP wrote 540 Medicare Part D claims totaling $1.7M in drug costs for 103 beneficiaries.
What is Yunying Chen, NP's Medicare quality score? ▼
Yunying Chen, NP has a CMS MIPS Final Score of 86.1/100 (Quality: 82.9, Cost: 66.7). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Yunying Chen, NP located? ▼
Yunying Chen, NP is located at 200 UCLA MEDICAL PLZ, Los Angeles, CA, 90095. Phone: (310) 206-6931.
What is Yunying Chen, NP's NPI number? ▼
Yunying Chen, NP's National Provider Identifier (NPI) is 1558944520, issued on 04/28/2021.
How many Acute Care Nurse Practitioner providers are there in the US? ▼
There are 24,583 Acute Care Nurse Practitioner providers across 53 states in the US. The average Acute Care Nurse Practitioner provider writes 576 Medicare Part D claims per year.
What drugs does Yunying Chen, NP prescribe most often? ▼
Based on 2023 Medicare Part D data, Yunying Chen, NP's most frequently prescribed drugs include Acyclovir, Venclexta, Pantoprazole Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Yunying Chen, NP accept Medicare? ▼
Yunying Chen, NP appears in CMS Medicare data with 540 Part D claims and 103 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Yunying Chen, NP's credentials? ▼
Yunying Chen, NP's NPI is 1558944520 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 (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
Compiled from official public sources by the PlainDoctor editorial team.