NPI registry status
Active
2026 NPPES data General Practice Physician NPI 1497049217 M.D.
Verify on CMS → May Nguyen, M.D.
General Practice Physician in Tripler Army Medical Center, Hawaii.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,838 in General Practice 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
285
Medicare Part D claims · 104 beneficiaries · General Practice Physician avg: 3K
MIPS score
83.1/100
▼ 0 pts below national avg 83.5 · Above neutral
What the federal data shows
May Nguyen, M.D. reported a CMS MIPS final score of 83.1/100 - below the 83.5 national average - and filed 285 Medicare Part D claims in 2024.
- 83.1/100
- MIPS score · 0 vs avg
- 285
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥39th
- pct among measured MIPS (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 May Nguyen, M.D.
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1497049217), first enumerated 06/09/2011.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 285 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 83.1/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- 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.
- 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 1497049217 · General Practice Physician
NPI-10 · ENUM-MID · TAX-MID · MIPS-INLINE · RX-LIGHT · BOOK-THIN · PHOTO-FINISH
- NPI-10 1497049217
- ENUM-MID 2011
- TAX-MID 17K General Practice
- MIPS-INLINE 83.1/100
- RX-LIGHT 285
- BOOK-THIN 177 in Hawaii
- PHOTO-FINISH Kayla Matthews, DO · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Amy Conard, FNP …
Amy Conard, FNP
83 MIPS pts
- Nguyen · this pr…
Nguyen · this provider
83.1 MIPS pts
- Kayla Matthews, …
Kayla Matthews, DO
83.1 MIPS pts
- Corey Pickett, D…
Corey Pickett, DO
83.1 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
May Nguyen, M.D.'s MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
83 ≥ 39th percentile 39% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where May Nguyen, M.D. sits
This provider among general practice physician peers
Across the 714 general practice physician providers who report both Medicare Part D prescribing and a MIPS quality score, May Nguyen, M.D. writes more Part D claims than 41% of them and scores higher on MIPS quality than 46% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one general practice physician peer from a representative sample of 60; the gold marker is May Nguyen, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
May Nguyen, M.D. 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 May Nguyen, M.D.?
Near national averagePrimary specialty
General Practice Physician
Medicare Part D claims
285 90% vs specialty avg
MIPS final score
83.1/100 0.4 pts vs avg
Specialty distribution in Hawaii
How General Practice Physician compares to other specialties among Hawaii providers
Medicare quality performance, MIPS
May Nguyen, M.D.'s 2023 MIPS final score plotted against the General Practice Physician national average
- MIPS Final Score
- 83.1/100
- vs 83.5 national avg · 2023 performance year
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 | 1497049217 |
|---|---|
| Specialty | General Practice Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 06/09/2011 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
83.0533
Final Score
Measured-score avg: 83.5
76.4787
Quality
67.0324
Cost
100
Promoting Interoperability
Reporting: Group practice
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
285
Total Claims
$12K
Total Drug Cost
104
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 305.933
- Total Day Supply
- 6,376
- Generic Drug Cost
- $6K
- Opioid Claims
- 20 (7.0% rate)
- Antibiotic Claims
- 60
Patient Demographics
- Average Patient Age
- 74.8 years
- Avg HCC Risk Score
- 2.12
- Gender Split
- 67% female / 33% male
- Age Distribution
- <65: 14, 65-74: 36, 75-84: 34, 85+: 20
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What May Nguyen, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Pantoprazole Sodium
Pantoprazole Sodium
13 claims
- Losartan Potassium
Losartan Potassium
12 claims
- Furosemide
Furosemide
11 claims
| Drug | Claims |
|---|---|
| Pantoprazole Sodium | 13 |
| Losartan Potassium | 12 |
| Furosemide | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
General Practice Physician Overview
How May Nguyen, M.D. fits within the General Practice Physician landscape nationally.
16,838
General Practice Physician Providers in US
56
States with General Practice Physician
2,957
Avg Claims per Provider
May Nguyen, M.D.'s 285 claims are below the specialty average of 2,957.
Nationwide General Practice Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Nguyen, both outside Hawaii so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (83.1 here).
Same NPPES enumeration year (2011)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby General Practice Physician Providers in Hawaii
Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as Nguyen.
One of 177 General Practice Physician providers enrolled in Hawaii, 5 are shown here.
Dr. Michael Aguilar
D.O.
Tripler Army Medical Center, HI
Dr. Cecilia Alailima
M.D.
Honolulu, HI
Dr. Thomas Austin
MD
Princeville, HI
Dr. Jason Banarsee
DO
Tripler Amc, HI
Dr. James Barahal
M.D.
Honolulu, HI
Compare General Practice Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is May Nguyen, M.D.'s specialty? ▼
May Nguyen, M.D. specializes in General Practice Physician and practices in Tripler Army Medical Center, Hawaii. Credentials: M.D..
How much does May Nguyen, M.D. prescribe under Medicare Part D? ▼
In 2024, May Nguyen, M.D. wrote 285 Medicare Part D claims totaling $12K in drug costs for 104 beneficiaries.
What is May Nguyen, M.D.'s Medicare quality score? ▼
May Nguyen, M.D. has a CMS MIPS Final Score of 83.1/100 (Quality: 76.5, Cost: 67). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is May Nguyen, M.D. located? ▼
May Nguyen, M.D. is located at 1 JARRETT WHITE RD, Tripler Army Medical Center, HI, 96859. Phone: (808) 386-5791.
What is May Nguyen, M.D.'s NPI number? ▼
May Nguyen, M.D.'s National Provider Identifier (NPI) is 1497049217, issued on 06/09/2011.
Does May Nguyen, M.D. prescribe opioids? ▼
Yes, May Nguyen, M.D. had 20 opioid claims in 2024 with an opioid prescribing rate of 7.0%.
How many General Practice Physician providers are there in the US? ▼
There are 16,838 General Practice Physician providers across 56 states in the US. The average General Practice Physician provider writes 2,957 Medicare Part D claims per year.
What drugs does May Nguyen, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, May Nguyen, M.D.'s most frequently prescribed drugs include Pantoprazole Sodium, Losartan Potassium, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does May Nguyen, M.D. accept Medicare? ▼
May Nguyen, M.D. appears in CMS Medicare data with 285 Part D claims and 104 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify May Nguyen, M.D.'s credentials? ▼
May Nguyen, M.D.'s NPI is 1497049217 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.
- 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 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.