2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1558310656 MD
Verify on CMS →

JAMES HSU, MD

Critical Care Medicine (Internal Medicine) Physician in HENDERSON, Nevada. 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
1K
Medicare Part D claims · 237 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
45%
generic claims · 55% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
13.0289/100
▼ 70 pts below national avg 83.1 · [object Object]

What the federal data shows

JAMES HSU, MD reported a CMS MIPS final score of 13.0289/100 — below the 83.1 national average — and filed 1,182 Medicare Part D claims in 2023.

13.0289/100
MIPS score · -70 vs avg
1K
Part D claims, 2023
45%
generic prescribing
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.

JAMES HSU, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

13 2nd percentile higher than 2% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). This entry sits in this band. 20–30: 3,069 scored providers (1%). Above this entry. 30–40: 2,746 scored providers (1%). Above this entry. 40–50: 2,928 scored providers (1%). Above this entry. 50–60: 5,882 scored providers (1%). Above this entry. 60–70: 13,906 scored providers (3%). Above this entry. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

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

Board certification likely (heuristic — not verified)

JAMES HSU, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — 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 JAMES HSU, MD?

Below national average

NPI registry status

Active

Issued 05/08/2006

NPI 1558310656

Primary specialty

Critical Care Medicine (Internal Medicine) Physician

Mid-sized

6,631 US NPIs in this specialty

Medicare Part D claims

1,182 11% vs specialty avg

2023 prescription claims

Specialty avg: 1,069

MIPS final score

13.0289/100 70.0711% pts

Penalty band band

vs 83.1 national avg

Specialty distribution in Nevada

How Critical Care Medicine (Internal Medicine) Physician compares to other specialties among Nevada providers

Nevada providers

Critical Care Medicine (Internal Medicine) Physician share within Nevada

1. Critical Care Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Critical Care Medicine (Internal Medicine) Physician share within Nevada

Medicare quality performance — MIPS

JAMES HSU, MD's 2023 MIPS final score plotted against the Critical Care Medicine (Internal Medicine) Physician national average

Below national average
MIPS Final Score
13.0289/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Critical Care Medicine (Internal Medicine) Physician) — 13.0289/100 vs national avg 83.1

0%100%National avg83%13%
MIPS final score (Critical Care Medicine (Internal Medicine) Physician) — 13.0289/100 vs national avg 83.1

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).

JAMES HSU, MD is a Critical Care Medicine (Internal Medicine) Physician provider practicing in HENDERSON, Nevada, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1558310656. 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.

JAMES HSU, MD appears in the CMS NPPES registry as a Critical Care Medicine (Internal Medicine) Physician provider holding MD credentials at PO BOX 531124, HENDERSON, NV, 89053, with a listed phone of (999) 999-9999. NPI 1558310656 was issued on 05/08/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HSU 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 1,182 prescription claims written by this provider, covering 237 Medicare beneficiaries and totaling roughly $1.3 million in drug spend, split 55% brand-name and 45% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 13.0289/100 for the 2023 performance year (Quality 0, Cost 43.4297), compared with the national average of 83.1.

Critical Care Medicine (Internal Medicine) Physician is a mid-sized specialty nationwide, with 6,631 enrolled providers across 53 states and an average of 1,069 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

PO BOX 531124
HENDERSON, NV 89053

Provider Details

NPI 1558310656
Specialty Critical Care Medicine (Internal Medicine) Physician
Credentials MD
Gender Male
NPI Issued 05/08/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

13.0289
Final Score
Avg: 83.1
0
Quality
43.4297
Cost
0
Promoting Interoperability

Reporting: Individual

Brand vs generic prescribing mix · Brand-heavy

JAMES HSU, MD — brand share 55.0%
Specialty average (est.)

55% brand-name claims vs 45% generic, on 1,182 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.

1,182
Total Claims
$1.3M
Total Drug Cost
237
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,820
Total Day Supply
51,911
Brand vs Generic
55% brand / 45% generic
Brand Drug Cost
$1.1M
Antibiotic Claims
23

Patient Demographics

Average Patient Age
75.9 years
Avg HCC Risk Score
1.97
Gender Split
60% female / 40% male
Age Distribution
<65: 16, 65-74: 72, 75-84: 120, 85+: 29

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Trelegy Ellipta
Fluticasone/Umeclidin/Vilanter
164
Montelukast Sodium
118
Breo Ellipta
Fluticasone/Vilanterol
104
Albuterol Sulfate Hfa
Albuterol Sulfate
96
Prednisone
59
Wixela Inhub
Fluticasone Propion/Salmeterol
45
Tadalafil
36
Ambrisentan
28
Advair Diskus
Fluticasone Propion/Salmeterol
27
Fluticasone Propionate
27

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

Critical Care Medicine (Internal Medicine) Physician Overview

How JAMES HSU, MD fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.

6,631
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,069
Avg Claims per Provider

JAMES HSU, MD's 1,182 claims are above the specialty average of 1,069.

Nearby Critical Care Medicine (Internal Medicine) Physician Providers in Nevada

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

Compare Critical Care Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JAMES HSU, MD's specialty?
JAMES HSU, MD specializes in Critical Care Medicine (Internal Medicine) Physician and practices in HENDERSON, Nevada. Credentials: MD.
How much does JAMES HSU, MD prescribe under Medicare Part D?
In 2023, JAMES HSU, MD wrote 1,182 Medicare Part D claims totaling $1.3M in drug costs for 237 beneficiaries.
What is JAMES HSU, MD's Medicare quality score?
JAMES HSU, MD has a CMS MIPS Final Score of 13.0289/100 (Quality: 0, Cost: 43.4297). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JAMES HSU, MD located?
JAMES HSU, MD is located at PO BOX 531124, HENDERSON, NV, 89053. Phone: (999) 999-9999.
What is JAMES HSU, MD's NPI number?
JAMES HSU, MD's National Provider Identifier (NPI) is 1558310656, issued on 05/08/2006.
Does JAMES HSU, MD prescribe more brand-name or generic drugs?
JAMES HSU, MD's prescribing is 55% brand-name and 45% generic drugs by claim count, with $1.1M in brand drug costs.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US?
There are 6,631 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,069 Medicare Part D claims per year.
What drugs does JAMES HSU, MD prescribe most often?
Based on 2023 Medicare Part D data, JAMES HSU, MD's most frequently prescribed drugs include Trelegy Ellipta, Montelukast Sodium, Breo Ellipta. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does JAMES HSU, MD accept Medicare?
JAMES HSU, MD appears in CMS Medicare data with 1,182 Part D claims and 237 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JAMES HSU, MD's credentials?
JAMES HSU, MD's NPI is 1558310656 with credentials MD. 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.
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