NPI registry status
Active
2026 NPPES data Adult Health Nurse Practitioner NPI 1821398314 NP
Verify on CMS → Dan Nguyen, NP
Adult Health Nurse Practitioner in Long Beach, 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 29,811 in Adult Health Nurse Practitioner, 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
2K
Medicare Part D claims · 395 beneficiaries · Adult Health Nurse Practitioner avg: 1K
Industry payments
$106.44
2 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Dan Nguyen, NP filed 1,925 Medicare Part D claims in 2024 as an Adult Health Nurse Practitioner in Long Beach, California.
- 2K
- Part D claims, 2024
- $106.44
- industry payments (Sunshine Act)
- ≥83rd
- 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 Dan Nguyen, NP
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 1821398314), first enumerated 10/30/2010.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,925 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
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$106.44 in reported industry payments (2 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Dan Nguyen, NP'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 1821398314 · Adult Health Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MID · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1821398314
- ENUM-MID 2010
- TAX-MID 30K Adult Health
- RX-MID 1,925
- BOOK-LIGHT 1,472 in California
- PHOTO-ENUM Rachelann Stavoli · 2010
Dan Nguyen, NP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,925 ≥ 83rd percentile 83% 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 Dan Nguyen, NP?
Quality data not reportedPrimary specialty
Adult Health Nurse Practitioner
Medicare Part D claims
1,925 49% vs specialty avg
Specialty distribution in California
How Adult Health Nurse Practitioner 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 Adult Health Nurse Practitioner. 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 | 1821398314 |
|---|---|
| Specialty | Adult Health Nurse Practitioner |
| Credentials | NP |
| Gender | Female |
| NPI Issued | 10/30/2010 |
Hospital and facility affiliations
Facilities where Dan Nguyen, NP 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.
Centers For Family Medicine GP
Cypress, CA
Memorialcare Medical Foundation
Long Beach, 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).
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 Dan Nguyen, NP. Source: openpaymentsdata.cms.gov.
Total received
$106
Largest payer
Amgen 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 Dan Nguyen, NP. To verify Dan Nguyen, NP'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.
1,925
Total Claims
$108K
Total Drug Cost
395
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,170.6
- Total Day Supply
- 117,319
- Generic Drug Cost
- $26K
- Opioid Claims
- 74 (3.8% rate)
- Antibiotic Claims
- 144
Patient Demographics
- Average Patient Age
- 75.1 years
- Avg HCC Risk Score
- 1.44
- Gender Split
- 67% female / 33% male
- Age Distribution
- <65: 13, 65-74: 194, 75-84: 131, 85+: 57
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Dan Nguyen, NP prescribes most
Top Medicare Part D drugs by claim count, 2024
- Atorvastatin Calcium
Atorvastatin Calcium
126 claims
- Amlodipine Besylate
Amlodipine Besylate
91 claims
- Lisinopril
Lisinopril
66 claims
- Levothyroxine Sodium
Levothyroxine Sodium
63 claims
- Pantoprazole Sodium
Pantoprazole Sodium
58 claims
- Azithromycin
Azithromycin
56 claims
- Albuterol Sulfate … 49
Albuterol Sulfate Hfa
49 claims
- Losartan Potassium 41
Losartan Potassium
41 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 126 |
| Amlodipine Besylate | 91 |
| Lisinopril | 66 |
| Levothyroxine Sodium | 63 |
| Pantoprazole Sodium | 58 |
| Azithromycin | 56 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 49 |
| Losartan Potassium | 41 |
| Prednisone | 37 |
| Rosuvastatin Calcium | 37 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Adult Health Nurse Practitioner Overview
How Dan Nguyen, NP fits within the Adult Health Nurse Practitioner landscape nationally.
29,811
Adult Health Nurse Practitioner Providers in US
55
States with Adult Health Nurse Practitioner
1,291
Avg Claims per Provider
Dan Nguyen, NP's 1,925 claims are above the specialty average of 1,291.
Nationwide Adult Health Nurse Practitioner 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 (2010)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Adult Health Nurse Practitioner Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Nguyen.
One of 1,472 Adult Health Nurse Practitioner providers enrolled in California, 5 are shown here.
Joel Aandahl
NP
Vallejo, CA
Maria Katrina Abad
AGPCNP-BC
San Carlos, CA
Corey Abbott
N.P.
Claremont, CA
Michael Abney
FNP
Pleasanton, CA
Ilona Abramova
NP
West Hills, CA
Compare Adult Health Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Dan Nguyen, NP's specialty? ▼
Dan Nguyen, NP specializes in Adult Health Nurse Practitioner and practices in Long Beach, California. Credentials: NP.
How much does Dan Nguyen, NP prescribe under Medicare Part D? ▼
In 2024, Dan Nguyen, NP wrote 1,925 Medicare Part D claims totaling $108K in drug costs for 395 beneficiaries.
Where is Dan Nguyen, NP located? ▼
Dan Nguyen, NP is located at 3828 SCHAUFELE AVE STE 200, Long Beach, CA, 90808. Phone: (657) 241-8990.
What is Dan Nguyen, NP's NPI number? ▼
Dan Nguyen, NP's National Provider Identifier (NPI) is 1821398314, issued on 10/30/2010.
Does Dan Nguyen, NP prescribe opioids? ▼
Yes, Dan Nguyen, NP had 74 opioid claims in 2024 with an opioid prescribing rate of 3.8%.
How many Adult Health Nurse Practitioner providers are there in the US? ▼
There are 29,811 Adult Health Nurse Practitioner providers across 55 states in the US. The average Adult Health Nurse Practitioner provider writes 1,291 Medicare Part D claims per year.
What drugs does Dan Nguyen, NP prescribe most often? ▼
Based on 2024 Medicare Part D data, Dan Nguyen, NP's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Dan Nguyen, NP accept Medicare? ▼
Dan Nguyen, NP appears in CMS Medicare data with 1,925 Part D claims and 395 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Dan Nguyen, NP's credentials? ▼
Dan Nguyen, NP's NPI is 1821398314 with credentials NP. 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.