NPI registry status
Active
2026 NPPES data Advanced Heart Failure and Transplant Cardiology Physician NPI 1497982938 MD, PHD
Verify on CMS → Van-Khue Ton, MD, PHD
Advanced Heart Failure and Transplant Cardiology Physician in Boston, Massachusetts.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 566 in Advanced Heart Failure and Transplant Cardiology 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
2K
Medicare Part D claims · 202 beneficiaries · Advanced Heart Failure and Transplant Cardiology Physician avg: 2K
Generic prescribing
59%
generic claims · 41% 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
Van-Khue Ton, MD, PHD filed 1,880 Medicare Part D claims in 2024 as an Advanced Heart Failure and Transplant Cardiology Physician in Boston, Massachusetts, prescribing 59% generic.
- 2K
- Part D claims, 2024
- 59%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥83rd
- 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 Van-Khue Ton, MD, PHD
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 1497982938), first enumerated 06/11/2009.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,880 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
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Massachusetts statewide board action statistics are published annually — these figures describe aggregate state activity, not Van-Khue Ton, MD, PHD's individual license status. Verify directly with the state medical board.
Source: BORIM 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 1497982938 · Advanced Heart Failure and Transplant Cardiology Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1497982938
- ENUM-MID 2009
- TAX-NARROW 566
- RX-MID 1,880
- BOOK-THIN 26 in Massachusetts
- PHOTO-ENUM Lydia Engwenyu · 2009
Van-Khue Ton, MD, PHD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,880 ≥ 83rd percentile 83% 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)
Van-Khue Ton, MD, PHD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - 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 Van-Khue Ton, MD, PHD?
Quality data not reportedPrimary specialty
Advanced Heart Failure and Transplant Cardiology Physician
Medicare Part D claims
1,880 2% vs specialty avg
Specialty distribution in Massachusetts
How Advanced Heart Failure and Transplant Cardiology Physician compares to other specialties among Massachusetts 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 Advanced Heart Failure and Transplant Cardiology 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 | 1497982938 |
|---|---|
| Specialty | Advanced Heart Failure and Transplant Cardiology Physician |
| Credentials | MD, PHD |
| Gender | Female |
| NPI Issued | 06/11/2009 |
Hospital and facility affiliations
Facilities where Van-Khue Ton, MD, PHD 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.
Martha's Vineyard Hospital Inc
★★★★☆ 4/5
Oak Bluffs, MA
Critical Access Hospitals
CMS CCN: 221300
Massachusetts General Physicians Organization Inc
Boston, MA
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 - Massachusetts BORIM 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 ~38K Massachusetts medical licensees in 2023 - they are NOT specific to Van-Khue Ton, MD, PHD. To verify Van-Khue Ton, MD, PHD's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases
BORIM 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 Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Van-Khue Ton, MD, PHD - brand share 41.0%
Advanced Heart Failure and Transplant Cardiology Physician average
41% brand-name claims vs 59% generic, on 1,880 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.
1,880
Total Claims
$2.6M
Total Drug Cost
202
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,513.667
- Total Day Supply
- 134,343
- Brand vs Generic
- 41% brand / 59% generic
- Brand Drug Cost
- $2.6M
- Generic Drug Cost
- $40K
- Opioid Claims
- 13 (0.7% rate)
Patient Demographics
- Average Patient Age
- 74.3 years
- Avg HCC Risk Score
- 2.76
- Gender Split
- 29% female / 71% male
- Age Distribution
- <65: 25, 65-74: 67, 75-84: 88, 85+: 22
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Van-Khue Ton, MD, PHD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Jardiance
Jardiance
201 claims
- Spironolactone
Spironolactone
194 claims
- Metoprolol Succinate
Metoprolol Succinate
189 claims
- Entresto
Entresto
180 claims
- Farxiga
Farxiga
125 claims
- Eliquis 69
Eliquis
69 claims
- Vyndamax 66
Vyndamax
66 claims
- Torsemide 62
Torsemide
62 claims
| Drug | Claims |
|---|---|
| Jardiance Empagliflozin | 201 |
| Spironolactone | 194 |
| Metoprolol Succinate | 189 |
| Entresto Sacubitril/Valsartan | 180 |
| Farxiga Dapagliflozin Propanediol | 125 |
| Eliquis Apixaban | 69 |
| Vyndamax Tafamidis | 66 |
| Torsemide | 62 |
| Eplerenone | 58 |
| Atorvastatin Calcium | 53 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Advanced Heart Failure and Transplant Cardiology Physician in MA →
All providers in Massachusetts →
Compare specialties →
Advanced Heart Failure and Transplant Cardiology Physician Overview
How Van-Khue Ton, MD, PHD fits within the Advanced Heart Failure and Transplant Cardiology Physician landscape nationally.
566
Advanced Heart Failure and Transplant Cardiology Physician Providers in US
48
States with Advanced Heart Failure and Transplant Cardiology Physician
1,916
Avg Claims per Provider
Van-Khue Ton, MD, PHD's 1,880 claims are below the specialty average of 1,916.
Nationwide Advanced Heart Failure and Transplant Cardiology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Ton, both outside Massachusetts so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2009)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Advanced Heart Failure and Transplant Cardiology Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Ton.
One of 26 Advanced Heart Failure and Transplant Cardiology Physician providers enrolled in Massachusetts, 5 are shown here.
Frequently Asked Questions
What is Van-Khue Ton, MD, PHD's specialty? ▼
Van-Khue Ton, MD, PHD specializes in Advanced Heart Failure and Transplant Cardiology Physician and practices in Boston, Massachusetts. Credentials: MD, PHD.
How much does Van-Khue Ton, MD, PHD prescribe under Medicare Part D? ▼
In 2024, Van-Khue Ton, MD, PHD wrote 1,880 Medicare Part D claims totaling $2.6M in drug costs for 202 beneficiaries.
Where is Van-Khue Ton, MD, PHD located? ▼
Van-Khue Ton, MD, PHD is located at MASSACHUSETTS GENERAL HOSPITAL, Boston, MA, 02114. Phone: (617) 726-2862.
What is Van-Khue Ton, MD, PHD's NPI number? ▼
Van-Khue Ton, MD, PHD's National Provider Identifier (NPI) is 1497982938, issued on 06/11/2009.
Does Van-Khue Ton, MD, PHD prescribe more brand-name or generic drugs? ▼
Van-Khue Ton, MD, PHD's prescribing is 41% brand-name and 59% generic drugs by claim count, with $2.6M in brand drug costs.
Does Van-Khue Ton, MD, PHD prescribe opioids? ▼
Yes, Van-Khue Ton, MD, PHD had 13 opioid claims in 2024 with an opioid prescribing rate of 0.7%.
How many Advanced Heart Failure and Transplant Cardiology Physician providers are there in the US? ▼
There are 566 Advanced Heart Failure and Transplant Cardiology Physician providers across 48 states in the US. The average Advanced Heart Failure and Transplant Cardiology Physician provider writes 1,916 Medicare Part D claims per year.
What drugs does Van-Khue Ton, MD, PHD prescribe most often? ▼
Based on 2024 Medicare Part D data, Van-Khue Ton, MD, PHD's most frequently prescribed drugs include Jardiance, Spironolactone, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Van-Khue Ton, MD, PHD accept Medicare? ▼
Van-Khue Ton, MD, PHD appears in CMS Medicare data with 1,880 Part D claims and 202 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Van-Khue Ton, MD, PHD's credentials? ▼
Van-Khue Ton, MD, PHD's NPI is 1497982938 with credentials MD, PHD. 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.