NPI registry status
Active
2026 NPPES data Registered Nurse NPI 1326415415 APRN
Verify on CMS → Chih-Hsun Hsu, APRN
Registered Nurse in Meriden, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 177,204 in Registered Nurse, 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
1K
Medicare Part D claims · 80 beneficiaries · Registered Nurse avg: 1K
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Chih-Hsun Hsu, APRN filed 1,107 Medicare Part D claims in 2023 as a Registered Nurse in Meriden, Connecticut, prescribing 95% generic.
- 1K
- Part D claims, 2023
- 95%
- 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.
Chih-Hsun Hsu, APRN's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,107 Top 23% higher than 77% of 1,370,886 prescribers
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 Chih-Hsun Hsu, APRN?
Quality data not reportedPrimary specialty
Registered Nurse
Medicare Part D claims
1,107 11% vs specialty avg
Specialty distribution in Connecticut
How Registered Nurse compares to other specialties among Connecticut providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Registered Nurse. Verify directly:
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).
Chih-Hsun Hsu, APRN appears in the CMS NPPES registry as a Registered Nurse provider holding APRN credentials at 134 STATE ST, Meriden, CT, 06450, with a listed phone of (203) 237-2229. NPI 1326415415 was issued on 08/25/2015.
Medicare Part D records for calendar year 2023 show 1,107 prescription claims written by this provider, covering 80 Medicare beneficiaries and totaling roughly $121K in drug spend, split 5% brand-name and 95% generic by claim count.
Registered Nurse is a high-volume specialty nationwide, with 177,204 enrolled providers across 56 states and an average of 1,000 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 | 1326415415 |
|---|---|
| Specialty | Registered Nurse |
| Credentials | APRN |
| Gender | Female |
| NPI Issued | 08/25/2015 |
Brand vs generic prescribing mix · Generic-heavy
Chih-Hsun Hsu, APRN - brand share 5.0%
Registered Nurse average
5% brand-name claims vs 95% generic, on 1,107 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.
1,107
Total Claims
$121K
Total Drug Cost
80
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,272
- Total Day Supply
- 34,993
- Brand vs Generic
- 5% brand / 95% generic
- Brand Drug Cost
- $74K
- Generic Drug Cost
- $47K
Patient Demographics
- Average Patient Age
- 56.4 years
- Avg HCC Risk Score
- 1.31
- Gender Split
- 68% female / 33% male
- Age Distribution
- <65: 61, 65-74: 17, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Chih-Hsun Hsu, APRN prescribes most
Top Medicare Part D drugs by claim count, 2023
- Clonazepam
Clonazepam
136 claims
- Quetiapine Fumarate
Quetiapine Fumarate
83 claims
- Buprenorphine-Nalo…
Buprenorphine-Naloxone
73 claims
- Lamotrigine
Lamotrigine
57 claims
- Lorazepam 49
Lorazepam
49 claims
- Trazodone Hcl 48
Trazodone Hcl
48 claims
- Alprazolam 46
Alprazolam
46 claims
- Duloxetine Hcl 45
Duloxetine Hcl
45 claims
| Drug | Claims |
|---|---|
| Clonazepam | 136 |
| Quetiapine Fumarate | 83 |
| Buprenorphine-Naloxone Buprenorphine Hcl/Naloxone Hcl | 73 |
| Lamotrigine | 57 |
| Lorazepam | 49 |
| Trazodone Hcl | 48 |
| Alprazolam | 46 |
| Duloxetine Hcl | 45 |
| Aripiprazole | 44 |
| Mirtazapine | 41 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Registered Nurse Overview
How Chih-Hsun Hsu, APRN fits within the Registered Nurse landscape nationally.
177,204
Registered Nurse Providers in US
56
States with Registered Nurse
1,000
Avg Claims per Provider
Chih-Hsun Hsu, APRN's 1,107 claims are above the specialty average of 1,000.
Nearby Registered Nurse Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Hsu.
Dr. Adey Abebe
APRN
Danbury, CT
Dr. Kwame Acheampong
NP
Stratford, CT
Amanda Adams
West Haven, CT
Barbara Addi
Bridgeport, CT
Jenna Addison
Trumbull, CT
Compare Registered Nurse 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 Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Registered Nurse 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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Understanding Medicare Claims Data
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Frequently Asked Questions
What is Chih-Hsun Hsu, APRN's specialty? ▼
Chih-Hsun Hsu, APRN specializes in Registered Nurse and practices in Meriden, Connecticut. Credentials: APRN.
How much does Chih-Hsun Hsu, APRN prescribe under Medicare Part D? ▼
In 2023, Chih-Hsun Hsu, APRN wrote 1,107 Medicare Part D claims totaling $121K in drug costs for 80 beneficiaries.
Where is Chih-Hsun Hsu, APRN located? ▼
Chih-Hsun Hsu, APRN is located at 134 STATE ST, Meriden, CT, 06450. Phone: (203) 237-2229.
What is Chih-Hsun Hsu, APRN's NPI number? ▼
Chih-Hsun Hsu, APRN's National Provider Identifier (NPI) is 1326415415, issued on 08/25/2015.
Does Chih-Hsun Hsu, APRN prescribe more brand-name or generic drugs? ▼
Chih-Hsun Hsu, APRN's prescribing is 5% brand-name and 95% generic drugs by claim count, with $74K in brand drug costs.
How many Registered Nurse providers are there in the US? ▼
There are 177,204 Registered Nurse providers across 56 states in the US. The average Registered Nurse provider writes 1,000 Medicare Part D claims per year.
What drugs does Chih-Hsun Hsu, APRN prescribe most often? ▼
Based on 2023 Medicare Part D data, Chih-Hsun Hsu, APRN's most frequently prescribed drugs include Clonazepam, Quetiapine Fumarate, Buprenorphine-Naloxone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Chih-Hsun Hsu, APRN accept Medicare? ▼
Chih-Hsun Hsu, APRN appears in CMS Medicare data with 1,107 Part D claims and 80 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Chih-Hsun Hsu, APRN's credentials? ▼
Chih-Hsun Hsu, APRN's NPI is 1326415415 with credentials APRN. 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.
- 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.
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.