NPI registry status
Active
2026 NPPES data Student in an Organized Health Care Education/Training Program NPI 1215294731 D.O.
Verify on CMS → Hao Nguyen, D.O.
Student in an Organized Health Care Education/Training Program in San Diego, 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 351,014 in Student in an Organized Health Care Education/Training Program, 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
755
Medicare Part D claims · 270 beneficiaries · Student in an Organized Health Care Education/Training Program avg: 488
What the federal data shows
Hao Nguyen, D.O. filed 755 Medicare Part D claims in 2024 as a Student in an Organized Health Care Education/Training Program in San Diego, California.
- 755
- Part D claims, 2024
- ≥70th
- pct by Part D claim volume (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.
Federal trust snapshot
What official records show about Hao Nguyen, D.O.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1215294731), first enumerated 04/20/2012.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 755 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Hao Nguyen, D.O.'s individual license status. Verify directly with the state medical board.
Source: MBC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1215294731 · Student in an Organized Health Care Education/Training Program
NPI-10 · ENUM-MID · TAX-MEGA · RX-LIGHT · BOOK-MID · PHOTO-ENUM
- NPI-10 1215294731
- ENUM-MID 2012
- TAX-MEGA 351K Student in
- RX-LIGHT 755
- BOOK-MID 49,599 in California
- PHOTO-ENUM Christina Hernandez · 2012
Hao Nguyen, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
755 ≥ 70th percentile 70% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Hao Nguyen, D.O.?
Quality data not reportedPrimary specialty
Student in an Organized Health Care Education/Training Program
Medicare Part D claims
755 55% vs specialty avg
Specialty distribution in California
How Student in an Organized Health Care Education/Training Program compares to other specialties among California 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 Student in an Organized Health Care Education/Training Program. 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).
Practice Address
Provider Details
| NPI | 1215294731 |
|---|---|
| Specialty | Student in an Organized Health Care Education/Training Program |
| Credentials | D.O. |
| Gender | Male |
| NPI Issued | 04/20/2012 |
Hospital and facility affiliations
Facilities where Hao Nguyen, 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.
Southern California Permanente Medical Group
San Diego, CA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Hao Nguyen, D.O.. To verify Hao 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 2024.
755
Total Claims
$54K
Total Drug Cost
270
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,497.1
- Total Day Supply
- 39,477
- Generic Drug Cost
- $13K
- Opioid Claims
- 39 (5.2% rate)
- Antibiotic Claims
- 126
Patient Demographics
- Average Patient Age
- 76.4 years
- Avg HCC Risk Score
- 2.47
- Gender Split
- 56% female / 44% male
- Age Distribution
- <65: 24, 65-74: 94, 75-84: 91, 85+: 61
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Hao Nguyen, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Furosemide
Furosemide
57 claims
- Cefpodoxime Proxetil
Cefpodoxime Proxetil
43 claims
- Potassium Chloride
Potassium Chloride
32 claims
- Metoprolol Tartrate
Metoprolol Tartrate
30 claims
- Prednisone
Prednisone
23 claims
- Lisinopril 22
Lisinopril
22 claims
- Amlodipine Besylate 18
Amlodipine Besylate
18 claims
- Amoxicillin-Clavul… 18
Amoxicillin-Clavulanate Potass
18 claims
| Drug | Claims |
|---|---|
| Furosemide | 57 |
| Cefpodoxime Proxetil | 43 |
| Potassium Chloride | 32 |
| Metoprolol Tartrate | 30 |
| Prednisone | 23 |
| Lisinopril | 22 |
| Amlodipine Besylate | 18 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 18 |
| Atorvastatin Calcium | 18 |
| Gabapentin | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Student in an Organized Health Care Education/Training Program in CA →
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Student in an Organized Health Care Education/Training Program Overview
How Hao Nguyen, D.O. fits within the Student in an Organized Health Care Education/Training Program landscape nationally.
351,014
Student in an Organized Health Care Education/Training Program Providers in US
55
States with Student in an Organized Health Care Education/Training Program
488
Avg Claims per Provider
Hao Nguyen, D.O.'s 755 claims are above the specialty average of 488.
Nationwide Student in an Organized Health Care Education/Training Program peers with similar MIPS or enrollment year
Two federal-record peer sets for Nguyen, both outside California so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2012)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Student in an Organized Health Care Education/Training Program Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Nguyen.
One of 49,599 Student in an Organized Health Care Education/Training Program providers enrolled in California, 5 are shown here.
Frequently Asked Questions
What is Hao Nguyen, D.O.'s specialty? ▼
Hao Nguyen, D.O. specializes in Student in an Organized Health Care Education/Training Program and practices in San Diego, California. Credentials: D.O..
How much does Hao Nguyen, D.O. prescribe under Medicare Part D? ▼
In 2024, Hao Nguyen, D.O. wrote 755 Medicare Part D claims totaling $54K in drug costs for 270 beneficiaries.
Where is Hao Nguyen, D.O. located? ▼
Hao Nguyen, D.O. is located at 4077 FIFTH AVE # MER35, San Diego, CA, 92103. Phone: (619) 260-7220.
What is Hao Nguyen, D.O.'s NPI number? ▼
Hao Nguyen, D.O.'s National Provider Identifier (NPI) is 1215294731, issued on 04/20/2012.
Does Hao Nguyen, D.O. prescribe opioids? ▼
Yes, Hao Nguyen, D.O. had 39 opioid claims in 2024 with an opioid prescribing rate of 5.2%.
How many Student in an Organized Health Care Education/Training Program providers are there in the US? ▼
There are 351,014 Student in an Organized Health Care Education/Training Program providers across 55 states in the US. The average Student in an Organized Health Care Education/Training Program provider writes 488 Medicare Part D claims per year.
What drugs does Hao Nguyen, D.O. prescribe most often? ▼
Based on 2024 Medicare Part D data, Hao Nguyen, D.O.'s most frequently prescribed drugs include Furosemide, Cefpodoxime Proxetil, Potassium Chloride. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Hao Nguyen, D.O. accept Medicare? ▼
Hao Nguyen, D.O. appears in CMS Medicare data with 755 Part D claims and 270 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Hao Nguyen, D.O.'s credentials? ▼
Hao Nguyen, D.O.'s NPI is 1215294731 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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.