NPI registry status
Active
2026 NPPES data Infectious Disease Physician NPI 1528492949 D.O
Verify on CMS → Li-Chien Chen, D.O
Infectious Disease Physician in Las Vegas, Nevada.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 8,292 in Infectious Disease Physician, 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
113
Medicare Part D claims · 28 beneficiaries · Infectious Disease Physician avg: 816
MIPS score
45.5/100
▼ 38 pts below national avg 83.1 · Below average
Industry payments
$921.82
23 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Li-Chien Chen, D.O reported a CMS MIPS final score of 45.5/100 - below the 83.1 national average - and filed 113 Medicare Part D claims in 2023.
- 45.5/100
- MIPS score · -38 vs avg
- 113
- Part D claims, 2023
- Likely
- board-certified (heuristic)
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.
Li-Chien Chen, D.O's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
46 4th percentile higher than 4% 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 Li-Chien Chen, D.O sits
This provider among infectious disease physician peers
Across the 2,276 infectious disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Li-Chien Chen, D.O writes more Part D claims than 19% of them and scores higher on MIPS quality than 4% - placing this provider in the lower-volume, lower-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 infectious disease physician peer from a representative sample of 60; the gold marker is Li-Chien Chen, D.O. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Li-Chien Chen, D.O practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Li-Chien Chen, D.O?
Below national averagePrimary specialty
Infectious Disease Physician
Medicare Part D claims
113 86% vs specialty avg
MIPS final score
45.5/100 37.6 pts vs avg
Specialty distribution in Nevada
How Infectious Disease Physician compares to other specialties among Nevada providers
Medicare quality performance, MIPS
Li-Chien Chen, D.O's 2023 MIPS final score plotted against the Infectious Disease Physician national average
- MIPS Final Score
- 45.5/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Infectious Disease Physician) - 45.5/100 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).
Li-Chien Chen, D.O appears in the CMS NPPES registry as a Infectious Disease Physician provider holding D.O credentials at 4445 S EASTERN AVE STE 1, Las Vegas, NV, 89119, with a listed phone of (702) 410-5319. NPI 1528492949 was issued on 08/22/2013.
Medicare Part D records for calendar year 2023 show 113 prescription claims written by this provider, covering 28 Medicare beneficiaries and totaling roughly $89K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 45.5/100 for the 2023 performance year (Quality 25.4, Cost 71.9), compared with the national average of 83.1.
Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 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 | 1528492949 |
|---|---|
| Specialty | Infectious Disease Physician |
| Credentials | D.O |
| Gender | Male |
| NPI Issued | 08/22/2013 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
45.5215
Final Score
Avg: 83.1
25.382
Quality
71.8714
Cost
Reporting: Group practice
Hospital and facility affiliations
Facilities where Li-Chien Chen, D.O 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.
Babak Hooshmand MD PLLC
Las Vegas, NV
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 Li-Chien Chen, D.O. Source: openpaymentsdata.cms.gov.
Total received
$922
Largest payer
Melinta Therapeutics, LLC
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
113
Total Claims
$89K
Total Drug Cost
28
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 128
- Total Day Supply
- 1,646
- Generic Drug Cost
- $49K
- Antibiotic Claims
- 99
Patient Demographics
- Average Patient Age
- 68.1 years
- Avg HCC Risk Score
- 3.22
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Daptomycin | 36 |
| Ertapenem Ertapenem Sodium | 29 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Infectious Disease Physician Overview
How Li-Chien Chen, D.O fits within the Infectious Disease Physician landscape nationally.
8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider
Li-Chien Chen, D.O's 113 claims are below the specialty average of 816.
Nearby Infectious Disease Physician Providers in Nevada
Other clinicians with the same primary specialty enrolled in Nevada, drawn from the same CMS NPPES roster as Chen.
Dr. Andres Adrianza Pacheco
MD
Reno, NV
Dr. Ion Alexie
MD
Las Vegas, NV
Dr. Salman Arif
MD
Henderson, NV
Dr. Radhika Arya
MD
Henderson, NV
Dr. Shadaba Asad
MD
Las Vegas, NV
Compare Infectious Disease Physician 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 Nevada medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Infectious Disease Physician 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.
Healthcare Guides
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
Telehealth Guide
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Frequently Asked Questions
What is Li-Chien Chen, D.O's specialty? ▼
Li-Chien Chen, D.O specializes in Infectious Disease Physician and practices in Las Vegas, Nevada. Credentials: D.O.
How much does Li-Chien Chen, D.O prescribe under Medicare Part D? ▼
In 2023, Li-Chien Chen, D.O wrote 113 Medicare Part D claims totaling $89K in drug costs for 28 beneficiaries.
What is Li-Chien Chen, D.O's Medicare quality score? ▼
Li-Chien Chen, D.O has a CMS MIPS Final Score of 45.5/100 (Quality: 25.4, Cost: 71.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Li-Chien Chen, D.O located? ▼
Li-Chien Chen, D.O is located at 4445 S EASTERN AVE STE 1, Las Vegas, NV, 89119. Phone: (702) 410-5319.
What is Li-Chien Chen, D.O's NPI number? ▼
Li-Chien Chen, D.O's National Provider Identifier (NPI) is 1528492949, issued on 08/22/2013.
How many Infectious Disease Physician providers are there in the US? ▼
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does Li-Chien Chen, D.O prescribe most often? ▼
Based on 2023 Medicare Part D data, Li-Chien Chen, D.O's most frequently prescribed drugs include Daptomycin, Ertapenem. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Li-Chien Chen, D.O accept Medicare? ▼
Li-Chien Chen, D.O appears in CMS Medicare data with 113 Part D claims and 28 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Li-Chien Chen, D.O's credentials? ▼
Li-Chien Chen, D.O's NPI is 1528492949 with credentials D.O. 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.