NPI registry status
Active
2026 NPPES data Pulmonary Disease Physician NPI 1962486878 MD
Verify on CMS → Phuong-Dung Nguyen, MD
Pulmonary Disease Physician in Houston, Texas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 9,271 in Pulmonary 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
1K
Medicare Part D claims · 212 beneficiaries · Pulmonary Disease Physician avg: 1K
Generic prescribing
0%
generic claims · 59% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
▼ 8 pts below national avg 83.1 · Above neutral
Industry payments
$45.6K
143 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
Phuong-Dung Nguyen, MD reported a CMS MIPS final score of 75/100 - below the 83.1 national average - and filed 1,374 Medicare Part D claims in 2023.
- 75/100
- MIPS score · -8 vs avg
- 1K
- Part D claims, 2023
- 0%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Phuong-Dung Nguyen, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
75 15th percentile higher than 15% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Phuong-Dung Nguyen, MD sits
This provider among pulmonary disease physician peers
Across the 2,676 pulmonary disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Phuong-Dung Nguyen, MD writes more Part D claims than 58% of them and scores higher on MIPS quality than 16% - 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 pulmonary disease physician peer from a representative sample of 60; the gold marker is Phuong-Dung Nguyen, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Phuong-Dung Nguyen, MD 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 Phuong-Dung Nguyen, MD?
Below national averagePrimary specialty
Pulmonary Disease Physician
Medicare Part D claims
1,374 6% vs specialty avg
MIPS final score
75/100 8.1 pts vs avg
Specialty distribution in Texas
How Pulmonary Disease Physician compares to other specialties among Texas providers
Medicare quality performance, MIPS
Phuong-Dung Nguyen, MD's 2023 MIPS final score plotted against the Pulmonary Disease Physician national average
- MIPS Final Score
- 75/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Pulmonary Disease Physician) - 75/100 vs national avg 83.1
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).
Phuong-Dung Nguyen, MD appears in the CMS NPPES registry as a Pulmonary Disease Physician provider holding MD credentials at 6560 FANNIN STREET, Houston, TX, 77030, with a listed phone of (713) 979-1190. NPI 1962486878 was issued on 12/05/2005.
Medicare Part D records for calendar year 2023 show 1,374 prescription claims written by this provider, covering 212 Medicare beneficiaries and totaling roughly $1.4 million in drug spend, split 59% brand-name and 0% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 75/100 for the 2023 performance year, compared with the national average of 83.1.
Pulmonary Disease Physician is a mid-sized specialty nationwide, with 9,271 enrolled providers across 53 states and an average of 1,457 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 | 1962486878 |
|---|---|
| Specialty | Pulmonary Disease Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 12/05/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
Avg: 83.1
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 Phuong-Dung Nguyen, MD. Source: openpaymentsdata.cms.gov.
Total received
$45.6K
Largest payer
AstraZeneca Pharmaceuticals LP
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 - Texas TMB 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 ~77K Texas medical licensees in 2023 - they are NOT specific to Phuong-Dung Nguyen, MD. To verify Phuong-Dung Nguyen, MD's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases
TMB 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 Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Brand-heavy
Phuong-Dung Nguyen, MD - brand share 59.0%
Pulmonary Disease Physician average
59% brand-name claims vs 0% generic, on 1,374 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.
1,374
Total Claims
$1.4M
Total Drug Cost
212
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,720
- Total Day Supply
- 46,956
- Brand vs Generic
- 59% brand / 0% generic
- Brand Drug Cost
- $1.3M
- Antibiotic Claims
- 152
Patient Demographics
- Average Patient Age
- 75.2 years
- Avg HCC Risk Score
- 2.02
- Gender Split
- 66% female / 34% male
- Age Distribution
- <65: 14, 65-74: 82, 75-84: 87, 85+: 29
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Phuong-Dung Nguyen, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Trelegy Ellipta
Trelegy Ellipta
217 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
96 claims
- Azithromycin 73
Azithromycin
73 claims
- Prednisone 73
Prednisone
73 claims
- Symbicort 72
Symbicort
72 claims
- Breztri Aerosphere 62
Breztri Aerosphere
62 claims
- Breo Ellipta 52
Breo Ellipta
52 claims
- Stiolto Respimat 52
Stiolto Respimat
52 claims
| Drug | Claims |
|---|---|
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 217 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 96 |
| Azithromycin | 73 |
| Prednisone | 73 |
| Symbicort Budesonide/Formoterol Fumarate | 72 |
| Breztri Aerosphere Budesonide/Glycopyr/Formoterol | 62 |
| Breo Ellipta Fluticasone/Vilanterol | 52 |
| Stiolto Respimat Tiotropium Br/Olodaterol Hcl | 52 |
| Montelukast Sodium | 51 |
| Anoro Ellipta Umeclidinium Brm/Vilanterol Tr | 46 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Pulmonary Disease Physician Overview
How Phuong-Dung Nguyen, MD fits within the Pulmonary Disease Physician landscape nationally.
9,271
Pulmonary Disease Physician Providers in US
53
States with Pulmonary Disease Physician
1,457
Avg Claims per Provider
Phuong-Dung Nguyen, MD's 1,374 claims are below the specialty average of 1,457.
Nearby Pulmonary Disease Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Nguyen.
Dr. Qammar Abbas
M.D.
Wylie, TX
Dr. Mohamed Abdalla
MD
San Antonio, TX
Dr. Emran Abu Atherah
M.D
Webster, TX
Dr. Bruce Ackerman
D.O.
Garland, TX
Dr. Mari Adachi
MD
Plano, TX
Compare Pulmonary 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 Texas medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Pulmonary 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 Phuong-Dung Nguyen, MD's specialty? ▼
Phuong-Dung Nguyen, MD specializes in Pulmonary Disease Physician and practices in Houston, Texas. Credentials: MD.
How much does Phuong-Dung Nguyen, MD prescribe under Medicare Part D? ▼
In 2023, Phuong-Dung Nguyen, MD wrote 1,374 Medicare Part D claims totaling $1.4M in drug costs for 212 beneficiaries.
What is Phuong-Dung Nguyen, MD's Medicare quality score? ▼
Phuong-Dung Nguyen, MD has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Phuong-Dung Nguyen, MD located? ▼
Phuong-Dung Nguyen, MD is located at 6560 FANNIN STREET, Houston, TX, 77030. Phone: (713) 979-1190.
What is Phuong-Dung Nguyen, MD's NPI number? ▼
Phuong-Dung Nguyen, MD's National Provider Identifier (NPI) is 1962486878, issued on 12/05/2005.
Does Phuong-Dung Nguyen, MD prescribe more brand-name or generic drugs? ▼
Phuong-Dung Nguyen, MD's prescribing is 59% brand-name and 0% generic drugs by claim count, with $1.3M in brand drug costs.
How many Pulmonary Disease Physician providers are there in the US? ▼
There are 9,271 Pulmonary Disease Physician providers across 53 states in the US. The average Pulmonary Disease Physician provider writes 1,457 Medicare Part D claims per year.
What drugs does Phuong-Dung Nguyen, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Phuong-Dung Nguyen, MD's most frequently prescribed drugs include Trelegy Ellipta, Albuterol Sulfate Hfa, Azithromycin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Phuong-Dung Nguyen, MD accept Medicare? ▼
Phuong-Dung Nguyen, MD appears in CMS Medicare data with 1,374 Part D claims and 212 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Phuong-Dung Nguyen, MD's credentials? ▼
Phuong-Dung Nguyen, MD's NPI is 1962486878 with credentials MD. 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
Compiled from official public sources by the PlainDoctor editorial team.