NPI registry status
Active
2026 NPPES data Hospice and Palliative Medicine (Family Medicine) Physician NPI 1225323694 M.D.
Verify on CMS → Ann Nguyen, M.D.
Hospice and Palliative Medicine (Family Medicine) Physician in Dallas, 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 830 in Hospice and Palliative Medicine (Family Medicine) 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
260
Medicare Part D claims · 33 beneficiaries · Hospice and Palliative Medicine (Family Medicine) Physician avg: 2K
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Ann Nguyen, M.D. filed 260 Medicare Part D claims in 2024 as a Hospice and Palliative Medicine (Family Medicine) Physician in Dallas, Texas, prescribing 95% generic.
- 260
- Part D claims, 2024
- 95%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥48th
- 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 Ann Nguyen, M.D.
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 1225323694), first enumerated 06/14/2011.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 260 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- 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
Texas statewide board action statistics are published annually — these figures describe aggregate state activity, not Ann Nguyen, M.D.'s individual license status. Verify directly with the state medical board.
Source: TMB 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 1225323694 · Hospice and Palliative Medicine (Family Medicine) Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1225323694
- ENUM-MID 2011
- TAX-NARROW 830
- RX-LIGHT 260
- BOOK-THIN 63 in Texas
- PHOTO-ENUM Swapna Phadnis, M.D. · 2011
Ann Nguyen, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
260 ≥ 48th percentile 48% 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
✓
Board certification likely (heuristic, not verified)
Ann Nguyen, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - 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 Ann Nguyen, M.D.?
Quality data not reportedPrimary specialty
Hospice and Palliative Medicine (Family Medicine) Physician
Medicare Part D claims
260 88% vs specialty avg
Specialty distribution in Texas
How Hospice and Palliative Medicine (Family Medicine) Physician compares to other specialties among Texas 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 Hospice and Palliative Medicine (Family Medicine) 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).
Practice Address
Provider Details
| NPI | 1225323694 |
|---|---|
| Specialty | Hospice and Palliative Medicine (Family Medicine) Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 06/14/2011 |
Hospital and facility affiliations
Facilities where Ann Nguyen, M.D. 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.
Healthtexas Provider Network
McKinney, TX
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 - 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 Ann Nguyen, M.D.. To verify Ann Nguyen, M.D.'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 · Generic-heavy
Ann Nguyen, M.D. - brand share 5.0%
Hospice and Palliative Medicine (Family Medicine) Physician average
5% brand-name claims vs 95% generic, on 260 2024 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 2024.
260
Total Claims
$10K
Total Drug Cost
33
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 270
- Total Day Supply
- 6,235
- Brand vs Generic
- 5% brand / 95% generic
- Brand Drug Cost
- $750
- Generic Drug Cost
- $9K
- Opioid Claims
- 128 (49.2% rate)
Patient Demographics
- Average Patient Age
- 74.8 years
- Avg HCC Risk Score
- 2.86
- Gender Split
- 61% female / 39% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Ann Nguyen, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Fentanyl
Fentanyl
35 claims
- Hydromorphone Hcl
Hydromorphone Hcl
26 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
23 claims
- Oxycodone-Acetamin…
Oxycodone-Acetaminophen
21 claims
- Ibuprofen
Ibuprofen
14 claims
- Alprazolam 13
Alprazolam
13 claims
- Ondansetron Hcl 13
Ondansetron Hcl
13 claims
- Tizanidine Hcl 13
Tizanidine Hcl
13 claims
| Drug | Claims |
|---|---|
| Fentanyl | 35 |
| Hydromorphone Hcl | 26 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 23 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 21 |
| Ibuprofen | 14 |
| Alprazolam | 13 |
| Ondansetron Hcl | 13 |
| Tizanidine Hcl | 13 |
| Gabapentin | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Hospice and Palliative Medicine (Family Medicine) Physician in TX →
All providers in Texas →
Compare specialties →
Hospice and Palliative Medicine (Family Medicine) Physician Overview
How Ann Nguyen, M.D. fits within the Hospice and Palliative Medicine (Family Medicine) Physician landscape nationally.
830
Hospice and Palliative Medicine (Family Medicine) Physician Providers in US
51
States with Hospice and Palliative Medicine (Family Medicine) Physician
2,137
Avg Claims per Provider
Ann Nguyen, M.D.'s 260 claims are below the specialty average of 2,137.
Nationwide Hospice and Palliative Medicine (Family Medicine) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Nguyen, both outside Texas so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2011)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Hospice and Palliative Medicine (Family Medicine) Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Nguyen.
One of 63 Hospice and Palliative Medicine (Family Medicine) Physician providers enrolled in Texas, 5 are shown here.
Frequently Asked Questions
What is Ann Nguyen, M.D.'s specialty? ▼
Ann Nguyen, M.D. specializes in Hospice and Palliative Medicine (Family Medicine) Physician and practices in Dallas, Texas. Credentials: M.D..
How much does Ann Nguyen, M.D. prescribe under Medicare Part D? ▼
In 2024, Ann Nguyen, M.D. wrote 260 Medicare Part D claims totaling $10K in drug costs for 33 beneficiaries.
Where is Ann Nguyen, M.D. located? ▼
Ann Nguyen, M.D. is located at 3500 GASTON AVE, Dallas, TX, 75246. Phone: (214) 820-9248.
What is Ann Nguyen, M.D.'s NPI number? ▼
Ann Nguyen, M.D.'s National Provider Identifier (NPI) is 1225323694, issued on 06/14/2011.
Does Ann Nguyen, M.D. prescribe more brand-name or generic drugs? ▼
Ann Nguyen, M.D.'s prescribing is 5% brand-name and 95% generic drugs by claim count, with $750 in brand drug costs.
Does Ann Nguyen, M.D. prescribe opioids? ▼
Yes, Ann Nguyen, M.D. had 128 opioid claims in 2024 with an opioid prescribing rate of 49.2%.
How many Hospice and Palliative Medicine (Family Medicine) Physician providers are there in the US? ▼
There are 830 Hospice and Palliative Medicine (Family Medicine) Physician providers across 51 states in the US. The average Hospice and Palliative Medicine (Family Medicine) Physician provider writes 2,137 Medicare Part D claims per year.
What drugs does Ann Nguyen, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Ann Nguyen, M.D.'s most frequently prescribed drugs include Fentanyl, Hydromorphone Hcl, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ann Nguyen, M.D. accept Medicare? ▼
Ann Nguyen, M.D. appears in CMS Medicare data with 260 Part D claims and 33 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ann Nguyen, M.D.'s credentials? ▼
Ann Nguyen, M.D.'s NPI is 1225323694 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 (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.