NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1285062901 PA
Verify on CMS → Xuan Huynh, PA
Physician Assistant in Claremont, 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 150,974 in Physician Assistant, 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
666
Medicare Part D claims · 511 beneficiaries · Physician Assistant avg: 790
Generic prescribing
61%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Xuan Huynh, PA filed 666 Medicare Part D claims in 2023 as a Physician Assistant in Claremont, California, prescribing 61% generic.
- 666
- Part D claims, 2023
- 61%
- generic prescribing
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.
Xuan Huynh, PA's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
666 Top 31% higher than 69% 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
What does the federal data show about Xuan Huynh, PA?
Quality data not reportedPrimary specialty
Physician Assistant
Medicare Part D claims
666 16% vs specialty avg
Specialty distribution in California
How Physician Assistant 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 Physician Assistant. 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).
Xuan Huynh, PA appears in the CMS NPPES registry as a Physician Assistant provider holding PA credentials at 1601 MONTE VISTA AVE, Claremont, CA, 91711, with a listed phone of (909) 865-9977. NPI 1285062901 was issued on 10/15/2013.
Medicare Part D records for calendar year 2023 show 666 prescription claims written by this provider, covering 511 Medicare beneficiaries and totaling roughly $15K in drug spend, split 15% brand-name and 61% generic by claim count.
Physician Assistant is a high-volume specialty nationwide, with 150,974 enrolled providers across 56 states and an average of 790 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 | 1285062901 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PA |
| Gender | Female |
| NPI Issued | 10/15/2013 |
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 Xuan Huynh, PA. To verify Xuan Huynh, PA'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 · Typical
Xuan Huynh, PA - brand share 15.0%
Physician Assistant average
15% brand-name claims vs 61% generic, on 666 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.
666
Total Claims
$15K
Total Drug Cost
511
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 807
- Total Day Supply
- 12,971
- Brand vs Generic
- 15% brand / 61% generic
- Brand Drug Cost
- $7K
- Generic Drug Cost
- $6K
- Antibiotic Claims
- 186
Patient Demographics
- Average Patient Age
- 72.9 years
- Avg HCC Risk Score
- 1.03
- Gender Split
- 64% female / 36% male
- Age Distribution
- <65: 32, 65-74: 282, 75-84: 148, 85+: 49
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Xuan Huynh, PA prescribes most
Top Medicare Part D drugs by claim count, 2023
- Paxlovid (Eua)
Paxlovid (Eua)
153 claims
- Doxycycline Monohy…
Doxycycline Monohydrate
103 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
87 claims
- Prednisone 41
Prednisone
41 claims
- Lidocaine Hcl Visc… 33
Lidocaine Hcl Viscous
33 claims
- Cephalexin 26
Cephalexin
26 claims
- Amlodipine Besylate 14
Amlodipine Besylate
14 claims
- Amoxicillin 11
Amoxicillin
11 claims
| Drug | Claims |
|---|---|
| Paxlovid (Eua) Nirmatrelvir/Ritonavir | 153 |
| Doxycycline Monohydrate | 103 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 87 |
| Prednisone | 41 |
| Lidocaine Hcl Viscous Lidocaine Hcl | 33 |
| Cephalexin | 26 |
| Amlodipine Besylate | 14 |
| Amoxicillin | 11 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Xuan Huynh, PA fits within the Physician Assistant landscape nationally.
150,974
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider
Xuan Huynh, PA's 666 claims are below the specialty average of 790.
Nearby Physician Assistant Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Huynh.
Dr. Marcia -Galbraith
PA
Stockton, CA
Dr. Danny Abad
PA
Orange, CA
Dr. Lea Dominique Abadies
PA
Tustin, CA
Dr. Rea Elizabeth Abaniel
P.A.-C
Seal Beach, CA
Dr. Ramina Abbasi
PA-C
Signal Hill, CA
Compare Physician Assistant 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 Physician Assistant 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 Xuan Huynh, PA's specialty? ▼
Xuan Huynh, PA specializes in Physician Assistant and practices in Claremont, California. Credentials: PA.
How much does Xuan Huynh, PA prescribe under Medicare Part D? ▼
In 2023, Xuan Huynh, PA wrote 666 Medicare Part D claims totaling $15K in drug costs for 511 beneficiaries.
Where is Xuan Huynh, PA located? ▼
Xuan Huynh, PA is located at 1601 MONTE VISTA AVE, Claremont, CA, 91711. Phone: (909) 865-9977.
What is Xuan Huynh, PA's NPI number? ▼
Xuan Huynh, PA's National Provider Identifier (NPI) is 1285062901, issued on 10/15/2013.
Does Xuan Huynh, PA prescribe more brand-name or generic drugs? ▼
Xuan Huynh, PA's prescribing is 15% brand-name and 61% generic drugs by claim count, with $7K in brand drug costs.
How many Physician Assistant providers are there in the US? ▼
There are 150,974 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does Xuan Huynh, PA prescribe most often? ▼
Based on 2023 Medicare Part D data, Xuan Huynh, PA's most frequently prescribed drugs include Paxlovid (Eua), Doxycycline Monohydrate, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Xuan Huynh, PA accept Medicare? ▼
Xuan Huynh, PA appears in CMS Medicare data with 666 Part D claims and 511 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Xuan Huynh, PA's credentials? ▼
Xuan Huynh, PA's NPI is 1285062901 with credentials PA. 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
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.