NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1790995975 D.O.
Verify on CMS → Hoang Nguyen, D.O.
Cardiovascular Disease Physician in San Jose, 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 24,810 in Cardiovascular 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
11K
Medicare Part D claims · 1K beneficiaries · Cardiovascular Disease Physician avg: 3K
MIPS score
49.8/100
▼ 34 pts below national avg 83.5 · Below average
Industry payments
$2.0K
81 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Hoang Nguyen, D.O. reported a CMS MIPS final score of 49.8/100 - below the 83.5 national average - and filed 10,628 Medicare Part D claims in 2023.
- 49.8/100
- MIPS score · -34 vs avg
- 11K
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥4th
- pct among measured MIPS (lower-bound band)
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.
Hoang Nguyen, D.O.'s MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
50 ≥ 4th percentile 4% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Hoang Nguyen, D.O. sits
This provider among cardiovascular disease physician peers
Across the 7,999 cardiovascular disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Hoang Nguyen, D.O. writes more Part D claims than 96% of them and scores higher on MIPS quality than 6% - placing this provider in the high-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 cardiovascular disease physician peer from a representative sample of 60; the gold marker is Hoang Nguyen, D.O.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Hoang Nguyen, D.O. 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 Hoang Nguyen, D.O.?
Below national averagePrimary specialty
Cardiovascular Disease Physician
Medicare Part D claims
10,628 250% vs specialty avg
MIPS final score
49.8/100 33.7 pts vs avg
Specialty distribution in California
How Cardiovascular Disease Physician compares to other specialties among California providers
Medicare quality performance, MIPS
Hoang Nguyen, D.O.'s 2023 MIPS final score plotted against the Cardiovascular Disease Physician national average
- MIPS Final Score
- 49.8/100
- vs 83.5 national avg · 2023 performance year
MIPS final score (Cardiovascular Disease Physician) - 49.8/100 vs national avg 83.5
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).
Hoang Nguyen, D.O. appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding D.O. credentials at 696 E SANTA CLARA ST, San Jose, CA, 95112, with a listed phone of (408) 971-8441. NPI 1790995975 was issued on 05/23/2007.
Medicare Part D records for calendar year 2023 show 10,628 prescription claims written by this provider, covering 1,014 Medicare beneficiaries and totaling roughly $3.4 million in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 49.8/100 for the 2023 performance year (Quality 20, Cost 62.2), compared with the 83.5 average among clinicians with a measured score.
Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,810 enrolled providers across 54 states and an average of 3,033 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 | 1790995975 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Credentials | D.O. |
| Gender | Male |
| NPI Issued | 05/23/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
49.8156
Final Score
Measured-score avg: 83.5
20
Quality
62.162
Cost
Reporting: Individual
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 Hoang Nguyen, D.O.. Source: openpaymentsdata.cms.gov.
Total received
$2.0K
Largest payer
Inari Medical, Inc.
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.
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 Hoang Nguyen, D.O.. To verify Hoang Nguyen, D.O.'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.
10,628
Total Claims
$3.4M
Total Drug Cost
1,014
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 27,352
- Total Day Supply
- 815,545
- Generic Drug Cost
- $385K
- Antibiotic Claims
- 98
Patient Demographics
- Average Patient Age
- 75.6 years
- Avg HCC Risk Score
- 1.58
- Gender Split
- 54% female / 46% male
- Age Distribution
- <65: 42, 65-74: 449, 75-84: 370, 85+: 153
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Hoang Nguyen, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Eliquis
Eliquis
940 claims
- Carvedilol
Carvedilol
932 claims
- Metoprolol Tartrate
Metoprolol Tartrate
762 claims
- Clopidogrel
Clopidogrel
675 claims
- Isosorbide Dinitrate
Isosorbide Dinitrate
578 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
527 claims
- Atorvastatin Calcium
Atorvastatin Calcium
488 claims
- Metoprolol Succinate
Metoprolol Succinate
479 claims
| Drug | Claims |
|---|---|
| Eliquis Apixaban | 940 |
| Carvedilol | 932 |
| Metoprolol Tartrate | 762 |
| Clopidogrel Clopidogrel Bisulfate | 675 |
| Isosorbide Dinitrate | 578 |
| Rosuvastatin Calcium | 527 |
| Atorvastatin Calcium | 488 |
| Metoprolol Succinate | 479 |
| Repatha Sureclick Evolocumab | 479 |
| Ranolazine Er Ranolazine | 427 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Cardiovascular Disease Physician Overview
How Hoang Nguyen, D.O. fits within the Cardiovascular Disease Physician landscape nationally.
24,810
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider
Hoang Nguyen, D.O.'s 10,628 claims are above the specialty average of 3,033.
Nearby Cardiovascular Disease Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Nguyen.
Dr. Abdul Abbasi
MD
Long Beach, CA
Dr. Lillian Abdelmalek
MD
Sacramento, CA
Dr. Robin Abdelmalik
M.D. FACC
Temecula, CA
Dr. Roberto Abdelnur
MD
El Centro, CA
Dr. Sohail Abdi-Moradi
M.D.
Moorpark, CA
Compare Cardiovascular 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 California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Cardiovascular 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.
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Frequently Asked Questions
What is Hoang Nguyen, D.O.'s specialty? ▼
Hoang Nguyen, D.O. specializes in Cardiovascular Disease Physician and practices in San Jose, California. Credentials: D.O..
How much does Hoang Nguyen, D.O. prescribe under Medicare Part D? ▼
In 2023, Hoang Nguyen, D.O. wrote 10,628 Medicare Part D claims totaling $3.4M in drug costs for 1,014 beneficiaries.
What is Hoang Nguyen, D.O.'s Medicare quality score? ▼
Hoang Nguyen, D.O. has a CMS MIPS Final Score of 49.8/100 (Quality: 20, Cost: 62.2). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Hoang Nguyen, D.O. located? ▼
Hoang Nguyen, D.O. is located at 696 E SANTA CLARA ST, San Jose, CA, 95112. Phone: (408) 971-8441.
What is Hoang Nguyen, D.O.'s NPI number? ▼
Hoang Nguyen, D.O.'s National Provider Identifier (NPI) is 1790995975, issued on 05/23/2007.
How many Cardiovascular Disease Physician providers are there in the US? ▼
There are 24,810 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does Hoang Nguyen, D.O. prescribe most often? ▼
Based on 2023 Medicare Part D data, Hoang Nguyen, D.O.'s most frequently prescribed drugs include Eliquis, Carvedilol, Metoprolol Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Hoang Nguyen, D.O. accept Medicare? ▼
Hoang Nguyen, D.O. appears in CMS Medicare data with 10,628 Part D claims and 1,014 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Hoang Nguyen, D.O.'s credentials? ▼
Hoang Nguyen, D.O.'s NPI is 1790995975 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
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.