2026 NPPES data Advanced Heart Failure and Transplant Cardiology Physician NPI 1669615324 M.D.
Verify on CMS →

STEVEN HSU, M.D.

Advanced Heart Failure and Transplant Cardiology Physician in BALTIMORE, Maryland. 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
864
Medicare Part D claims · 107 beneficiaries · Advanced Heart Failure and Transplant Cardiology Physician avg: 2K
Generic prescribing
65%
generic claims · 35% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
74.3962/100
▼ 9 pts below national avg 83.1 · [object Object]

What the federal data shows

STEVEN HSU, M.D. reported a CMS MIPS final score of 74.3962/100 — below the 83.1 national average — and filed 864 Medicare Part D claims in 2023.

74.3962/100
MIPS score · -9 vs avg
864
Part D claims, 2023
65%
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.

STEVEN HSU, M.D.'s MIPS score vs every scored U.S. clinician

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

74 12th percentile higher than 12% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). This entry sits in this band. 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)

STEVEN HSU, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 3 hospital affiliations — 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 STEVEN HSU, M.D.?

Below national average

NPI registry status

Active

Issued 04/10/2009

NPI 1669615324

Primary specialty

Advanced Heart Failure and Transplant Cardiology Physician

Niche

510 US NPIs in this specialty

Medicare Part D claims

864 51% vs specialty avg

2023 prescription claims

Specialty avg: 1,762

MIPS final score

74.3962/100 8.703800000000001% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in Maryland

How Advanced Heart Failure and Transplant Cardiology Physician compares to other specialties among Maryland providers

Maryland providers

Advanced Heart Failure and Transplant Cardiology Physician share within Maryland

1. Advanced Heart Failure and Transplant Cardiology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Advanced Heart Failure and Transplant Cardiology Physician share within Maryland

Medicare quality performance — MIPS

STEVEN HSU, M.D.'s 2023 MIPS final score plotted against the Advanced Heart Failure and Transplant Cardiology Physician national average

Below national average
MIPS Final Score
74.3962/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Advanced Heart Failure and Transplant Cardiology Physician) — 74.3962/100 vs national avg 83.1

0%100%National avg83%74.4%
MIPS final score (Advanced Heart Failure and Transplant Cardiology Physician) — 74.3962/100 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).

STEVEN HSU, M.D. appears in the CMS NPPES registry as a Advanced Heart Failure and Transplant Cardiology Physician provider holding M.D. credentials at 600 N WOLFE ST, BALTIMORE, MD, 21287, with a listed phone of (410) 955-7963. NPI 1669615324 was issued on 04/10/2009. 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 864 prescription claims written by this provider, covering 107 Medicare beneficiaries and totaling roughly $398K in drug spend, split 35% brand-name and 65% 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 74.3962/100 for the 2023 performance year (Quality 64.7185, Cost 52.4354), compared with the national average of 83.1.

Advanced Heart Failure and Transplant Cardiology Physician is a narrow specialty nationwide, with 510 enrolled providers across 48 states and an average of 1,762 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

600 N WOLFE ST
BALTIMORE, MD 21287

Provider Details

NPI 1669615324
Specialty Advanced Heart Failure and Transplant Cardiology Physician
Credentials M.D.
Gender Male
NPI Issued 04/10/2009

CMS Quality Score (MIPS)

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

74.3962
Final Score
Avg: 83.1
64.7185
Quality
52.4354
Cost
97
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where STEVEN HSU, M.D. 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.

JOHNS HOPKINS UNIVERSITY
BETHESDA, MD
JOHNS HOPKINS UNIVERSITY
BALTIMORE, MD
JOHNS HOPKINS UNIVERSITY
BALTIMORE, MD

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Brand vs generic prescribing mix · Above average

STEVEN HSU, M.D. — brand share 35.0%
Specialty average (est.)

35% brand-name claims vs 65% generic, on 864 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.

864
Total Claims
$398K
Total Drug Cost
107
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,132
Total Day Supply
63,819
Brand vs Generic
35% brand / 65% generic
Brand Drug Cost
$382K
Generic Drug Cost
$16K

Patient Demographics

Average Patient Age
69.3 years
Avg HCC Risk Score
2.48
Gender Split
42% female / 58% male

Top Prescribed Drugs (Medicare Part D)

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

What STEVEN HSU, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Entresto
Sacubitril/Valsartan
112
Spironolactone
81
Carvedilol
79
Metoprolol Succinate
64
Farxiga
Dapagliflozin Propanediol
63
Jardiance
Empagliflozin
56
Torsemide
55
Eliquis
Apixaban
45
Atorvastatin Calcium
35
Furosemide
23

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

Advanced Heart Failure and Transplant Cardiology Physician Overview

How STEVEN HSU, M.D. fits within the Advanced Heart Failure and Transplant Cardiology Physician landscape nationally.

510
Advanced Heart Failure and Transplant Cardiology Physician Providers in US
48
States with Advanced Heart Failure and Transplant Cardiology Physician
1,762
Avg Claims per Provider

STEVEN HSU, M.D.'s 864 claims are below the specialty average of 1,762.

Nearby Advanced Heart Failure and Transplant Cardiology Physician Providers in Maryland

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

Compare Advanced Heart Failure and Transplant Cardiology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is STEVEN HSU, M.D.'s specialty?
STEVEN HSU, M.D. specializes in Advanced Heart Failure and Transplant Cardiology Physician and practices in BALTIMORE, Maryland. Credentials: M.D..
How much does STEVEN HSU, M.D. prescribe under Medicare Part D?
In 2023, STEVEN HSU, M.D. wrote 864 Medicare Part D claims totaling $398K in drug costs for 107 beneficiaries.
What is STEVEN HSU, M.D.'s Medicare quality score?
STEVEN HSU, M.D. has a CMS MIPS Final Score of 74.3962/100 (Quality: 64.7185, Cost: 52.4354). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is STEVEN HSU, M.D. located?
STEVEN HSU, M.D. is located at 600 N WOLFE ST, BALTIMORE, MD, 21287. Phone: (410) 955-7963.
What is STEVEN HSU, M.D.'s NPI number?
STEVEN HSU, M.D.'s National Provider Identifier (NPI) is 1669615324, issued on 04/10/2009.
Does STEVEN HSU, M.D. prescribe more brand-name or generic drugs?
STEVEN HSU, M.D.'s prescribing is 35% brand-name and 65% generic drugs by claim count, with $382K in brand drug costs.
How many Advanced Heart Failure and Transplant Cardiology Physician providers are there in the US?
There are 510 Advanced Heart Failure and Transplant Cardiology Physician providers across 48 states in the US. The average Advanced Heart Failure and Transplant Cardiology Physician provider writes 1,762 Medicare Part D claims per year.
What drugs does STEVEN HSU, M.D. prescribe most often?
Based on 2023 Medicare Part D data, STEVEN HSU, M.D.'s most frequently prescribed drugs include Entresto, Spironolactone, Carvedilol. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STEVEN HSU, M.D. accept Medicare?
STEVEN HSU, M.D. appears in CMS Medicare data with 864 Part D claims and 107 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STEVEN HSU, M.D.'s credentials?
STEVEN HSU, M.D.'s NPI is 1669615324 with credentials M.D.. 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