NPI registry status
Active
2026 NPPES data Student in an Organized Health Care Education/Training Program NPI 1245526623 M.D.
Verify on CMS → Thomas Deleon, M.D.
Student in an Organized Health Care Education/Training Program in Wailuku, 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 351,014 in Student in an Organized Health Care Education/Training Program, 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
869
Medicare Part D claims · 141 beneficiaries · Student in an Organized Health Care Education/Training Program avg: 488
Generic prescribing
75%
generic claims · 25% 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
Thomas Deleon, M.D. filed 869 Medicare Part D claims in 2024 as a Student in an Organized Health Care Education/Training Program in Wailuku, Hawaii, prescribing 75% generic.
- 869
- Part D claims, 2024
- 75%
- generic prescribing
- ≥72nd
- 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 Thomas Deleon, 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 1245526623), first enumerated 06/23/2011.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 869 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- 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 1245526623 · Student in an Organized Health Care Education/Training Program
NPI-10 · ENUM-MID · TAX-MEGA · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1245526623
- ENUM-MID 2011
- TAX-MEGA 351K Student in
- RX-LIGHT 869
- BOOK-LIGHT 782 in Hawaii
- PHOTO-ENUM Lisa Grimes, PH.D. · 2011
Thomas Deleon, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
869 ≥ 72nd percentile 72% 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
What does the federal data show about Thomas Deleon, M.D.?
Quality data not reportedPrimary specialty
Student in an Organized Health Care Education/Training Program
Medicare Part D claims
869 78% vs specialty avg
Specialty distribution in Hawaii
How Student in an Organized Health Care Education/Training Program compares to other specialties among Hawaii 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 Student in an Organized Health Care Education/Training Program. 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 | 1245526623 |
|---|---|
| Specialty | Student in an Organized Health Care Education/Training Program |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/23/2011 |
Hospital and facility affiliations
Facilities where Thomas Deleon, 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.
Hawaii Permanente Medical Group Inc
Wailuku, HI
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Above average
Thomas Deleon, M.D. - brand share 25.0%
Student in an Organized Health Care Education/Training Program average
25% brand-name claims vs 75% generic, on 869 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.
869
Total Claims
$2.5M
Total Drug Cost
141
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,251.467
- Total Day Supply
- 32,777
- Brand vs Generic
- 25% brand / 75% generic
- Brand Drug Cost
- $2.5M
- Generic Drug Cost
- $88K
- Opioid Claims
- 42 (4.8% rate)
- Antibiotic Claims
- 13
Patient Demographics
- Average Patient Age
- 73.0 years
- Avg HCC Risk Score
- 2.21
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 13, 65-74: 67, 75-84: 44, 85+: 17
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Thomas Deleon, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Letrozole
Letrozole
111 claims
- Prednisone
Prednisone
66 claims
- Ibrance
Ibrance
51 claims
- Abiraterone Acetate
Abiraterone Acetate
48 claims
- Ondansetron Hcl
Ondansetron Hcl
46 claims
- Hydroxyurea 39
Hydroxyurea
39 claims
- Methylphenidate Hcl 35
Methylphenidate Hcl
35 claims
- Oxycodone Hcl 32
Oxycodone Hcl
32 claims
| Drug | Claims |
|---|---|
| Letrozole | 111 |
| Prednisone | 66 |
| Ibrance Palbociclib | 51 |
| Abiraterone Acetate | 48 |
| Ondansetron Hcl | 46 |
| Hydroxyurea | 39 |
| Methylphenidate Hcl | 35 |
| Oxycodone Hcl | 32 |
| Dexamethasone | 27 |
| Olanzapine | 21 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Student in an Organized Health Care Education/Training Program in HI →
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Student in an Organized Health Care Education/Training Program Overview
How Thomas Deleon, M.D. fits within the Student in an Organized Health Care Education/Training Program landscape nationally.
351,014
Student in an Organized Health Care Education/Training Program Providers in US
55
States with Student in an Organized Health Care Education/Training Program
488
Avg Claims per Provider
Thomas Deleon, M.D.'s 869 claims are above the specialty average of 488.
Nationwide Student in an Organized Health Care Education/Training Program peers with similar MIPS or enrollment year
Two federal-record peer sets for Deleon, both outside Hawaii 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 Student in an Organized Health Care Education/Training Program Providers in Hawaii
Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as Deleon.
One of 782 Student in an Organized Health Care Education/Training Program providers enrolled in Hawaii, 5 are shown here.
Frequently Asked Questions
What is Thomas Deleon, M.D.'s specialty? ▼
Thomas Deleon, M.D. specializes in Student in an Organized Health Care Education/Training Program and practices in Wailuku, Hawaii. Credentials: M.D..
How much does Thomas Deleon, M.D. prescribe under Medicare Part D? ▼
In 2024, Thomas Deleon, M.D. wrote 869 Medicare Part D claims totaling $2.5M in drug costs for 141 beneficiaries.
Where is Thomas Deleon, M.D. located? ▼
Thomas Deleon, M.D. is located at 80 MAHALANI ST, Wailuku, HI, 96793. Phone: (808) 243-6000.
What is Thomas Deleon, M.D.'s NPI number? ▼
Thomas Deleon, M.D.'s National Provider Identifier (NPI) is 1245526623, issued on 06/23/2011.
Does Thomas Deleon, M.D. prescribe more brand-name or generic drugs? ▼
Thomas Deleon, M.D.'s prescribing is 25% brand-name and 75% generic drugs by claim count, with $2.5M in brand drug costs.
Does Thomas Deleon, M.D. prescribe opioids? ▼
Yes, Thomas Deleon, M.D. had 42 opioid claims in 2024 with an opioid prescribing rate of 4.8%.
How many Student in an Organized Health Care Education/Training Program providers are there in the US? ▼
There are 351,014 Student in an Organized Health Care Education/Training Program providers across 55 states in the US. The average Student in an Organized Health Care Education/Training Program provider writes 488 Medicare Part D claims per year.
What drugs does Thomas Deleon, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Thomas Deleon, M.D.'s most frequently prescribed drugs include Letrozole, Prednisone, Ibrance. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Thomas Deleon, M.D. accept Medicare? ▼
Thomas Deleon, M.D. appears in CMS Medicare data with 869 Part D claims and 141 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Thomas Deleon, M.D.'s credentials? ▼
Thomas Deleon, M.D.'s NPI is 1245526623 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.