NPI registry status
Active
2026 NPPES data Neurology Physician NPI 1821431479 M.D.
Verify on CMS → Duc Vu, M.D.
Neurology Physician in Orange, 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 19,866 in Neurology 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
558
Medicare Part D claims · 155 beneficiaries · Neurology Physician avg: 1K
Generic prescribing
93%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$430.44
23 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Duc Vu, M.D. filed 558 Medicare Part D claims in 2023 as a Neurology Physician in Orange, California, prescribing 93% generic.
- 558
- Part D claims, 2023
- 93%
- generic prescribing
- $430.44
- industry payments (Sunshine Act)
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.
Duc Vu, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
558 Top 34% higher than 66% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Duc Vu, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Duc Vu, M.D.?
Quality data not reportedPrimary specialty
Neurology Physician
Medicare Part D claims
558 57% vs specialty avg
Specialty distribution in California
How Neurology Physician 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 Neurology Physician. 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).
Duc Vu, M.D. appears in the CMS NPPES registry as a Neurology Physician provider holding M.D. credentials at 101 THE CITY DR S, Orange, CA, 92868, with a listed phone of (714) 456-7890. NPI 1821431479 was issued on 04/14/2013.
Medicare Part D records for calendar year 2023 show 558 prescription claims written by this provider, covering 155 Medicare beneficiaries and totaling roughly $94K in drug spend, split 4% brand-name and 93% generic by claim count.
Neurology Physician is a mid-sized specialty nationwide, with 19,866 enrolled providers across 54 states and an average of 1,309 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 | 1821431479 |
|---|---|
| Specialty | Neurology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 04/14/2013 |
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 Duc Vu, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$430
Largest payer
UCB, 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 Duc Vu, M.D.. To verify Duc Vu, M.D.'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.
Brand vs generic prescribing mix · Generic-heavy
Duc Vu, M.D. - brand share 4.0%
Neurology Physician average
4% brand-name claims vs 93% generic, on 558 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.
558
Total Claims
$94K
Total Drug Cost
155
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,379
- Total Day Supply
- 40,816
- Brand vs Generic
- 4% brand / 93% generic
- Brand Drug Cost
- $47K
- Generic Drug Cost
- $46K
Patient Demographics
- Average Patient Age
- 70.7 years
- Avg HCC Risk Score
- 1.56
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 33, 65-74: 64, 75-84: 37, 85+: 21
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Duc Vu, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Gabapentin
Gabapentin
71 claims
- Donepezil Hcl
Donepezil Hcl
48 claims
- Amitriptyline Hcl
Amitriptyline Hcl
46 claims
- Quetiapine Fumarate
Quetiapine Fumarate
33 claims
- Memantine Hcl
Memantine Hcl
31 claims
- Carbidopa-Levodopa 22
Carbidopa-Levodopa
22 claims
- Levetiracetam 20
Levetiracetam
20 claims
- Meclizine Hcl 17
Meclizine Hcl
17 claims
| Drug | Claims |
|---|---|
| Gabapentin | 71 |
| Donepezil Hcl | 48 |
| Amitriptyline Hcl | 46 |
| Quetiapine Fumarate | 33 |
| Memantine Hcl | 31 |
| Carbidopa-Levodopa Carbidopa/Levodopa | 22 |
| Levetiracetam | 20 |
| Meclizine Hcl | 17 |
| Atorvastatin Calcium | 15 |
| Rizatriptan Rizatriptan Benzoate | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Neurology Physician Overview
How Duc Vu, M.D. fits within the Neurology Physician landscape nationally.
19,866
Neurology Physician Providers in US
54
States with Neurology Physician
1,309
Avg Claims per Provider
Duc Vu, M.D.'s 558 claims are below the specialty average of 1,309.
Nearby Neurology Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Vu.
Dr. Venkat Raghav Aachi
MD
Thousand Oaks, CA
Dr. John Aalbers
M.D.
San Diego, CA
Dr. Puya Abbassi
D.O.
San Jose, CA
Dr. Ahmed Abdelhak
MB CHB
San Francisco, CA
Dr. Justin Abraham
M.D., M.B.A.
Santa Barbara, CA
Compare Neurology 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 Neurology 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 Duc Vu, M.D.'s specialty? ▼
Duc Vu, M.D. specializes in Neurology Physician and practices in Orange, California. Credentials: M.D..
How much does Duc Vu, M.D. prescribe under Medicare Part D? ▼
In 2023, Duc Vu, M.D. wrote 558 Medicare Part D claims totaling $94K in drug costs for 155 beneficiaries.
Where is Duc Vu, M.D. located? ▼
Duc Vu, M.D. is located at 101 THE CITY DR S, Orange, CA, 92868. Phone: (714) 456-7890.
What is Duc Vu, M.D.'s NPI number? ▼
Duc Vu, M.D.'s National Provider Identifier (NPI) is 1821431479, issued on 04/14/2013.
Does Duc Vu, M.D. prescribe more brand-name or generic drugs? ▼
Duc Vu, M.D.'s prescribing is 4% brand-name and 93% generic drugs by claim count, with $47K in brand drug costs.
How many Neurology Physician providers are there in the US? ▼
There are 19,866 Neurology Physician providers across 54 states in the US. The average Neurology Physician provider writes 1,309 Medicare Part D claims per year.
What drugs does Duc Vu, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Duc Vu, M.D.'s most frequently prescribed drugs include Gabapentin, Donepezil Hcl, Amitriptyline Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Duc Vu, M.D. accept Medicare? ▼
Duc Vu, M.D. appears in CMS Medicare data with 558 Part D claims and 155 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Duc Vu, M.D.'s credentials? ▼
Duc Vu, M.D.'s NPI is 1821431479 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
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.
- 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
Compiled from official public sources by the PlainDoctor editorial team.