NPI registry status
Active
2026 NPPES data Radiation Oncology Physician NPI 1720053705 M.D.
Verify on CMS → John Triantafyllos, M.D.
Radiation Oncology Physician in Des Moines, Iowa.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,141 in Radiation Oncology 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
100
Medicare Part D claims · 59 beneficiaries · Radiation Oncology Physician avg: 135
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$91.86
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
John Triantafyllos, M.D. filed 100 Medicare Part D claims in 2024 as a Radiation Oncology Physician in Des Moines, Iowa, prescribing 83% generic.
- 100
- Part D claims, 2024
- 83%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥34th
- 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 John Triantafyllos, 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 1720053705), first enumerated 02/22/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 100 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
- Reported
Industry payment transparency
$91.86 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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.
Compare Triantafyllos with other Radiation Oncology Physician providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Iowa
- Dr. Mohamed Abdi, MD Mason City, IA
- Dr. August Anderson, MD Sioux City, IA
- Dr. Carryn Anderson, MD Iowa City, IA
- Dr. Samuel Andrews, M.D. Iowa City, IA
- Dr. Truston Bodine, MD, PHD Des Moines, IA
- Dr. Philip Colletier, MD Des Moines, IA
Other specialties in Des Moines: Clinical Social Worker (411) · Pharmacist (328) · Mental Health Counselor (299) · Family Medicine Physician (271)
CMS NPPES provider registry desk
NPI 1720053705 · Radiation Oncology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1720053705
- ENUM-LEGACY 2006
- TAX-MID 6K Radiation Oncology
- RX-LIGHT 100
- BOOK-THIN 58 in Iowa
- PHOTO-ENUM Ch Amar Inalsingh, M… · 2006
John Triantafyllos, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
100 ≥ 34th percentile 34% 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)
John Triantafyllos, 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 John Triantafyllos, M.D.?
Quality data not reportedPrimary specialty
Radiation Oncology Physician
Medicare Part D claims
100 26% vs specialty avg
Specialty distribution in Iowa
How Radiation Oncology Physician compares to other specialties among Iowa 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 Radiation Oncology 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 | 1720053705 |
|---|---|
| Specialty | Radiation Oncology Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 02/22/2006 |
Hospital and facility affiliations
Facilities where John Triantafyllos, 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.
Central Iowa Hospital Corporation
Des Moines, IA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 John Triantafyllos, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$92
Largest payer
Siemens Medical Solutions USA, Inc.
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.
Brand vs generic prescribing mix · Typical
John Triantafyllos, M.D. - brand share 17.0%
Radiation Oncology Physician average
17% brand-name claims vs 83% generic, on 100 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.
100
Total Claims
$1K
Total Drug Cost
59
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 122.5
- Total Day Supply
- 2,881
- Brand vs Generic
- 17% brand / 83% generic
- Brand Drug Cost
- $507
- Generic Drug Cost
- $889
Patient Demographics
- Average Patient Age
- 72.4 years
- Avg HCC Risk Score
- 1.00
- Gender Split
- 54% female / 46% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What John Triantafyllos, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Betamethasone Vale…
Betamethasone Valerate
34 claims
- Venlafaxine Hcl Er
Venlafaxine Hcl Er
19 claims
- Bicalutamide
Bicalutamide
15 claims
- Tamsulosin Hcl
Tamsulosin Hcl
14 claims
| Drug | Claims |
|---|---|
| Betamethasone Valerate | 34 |
| Venlafaxine Hcl Er Venlafaxine Hcl | 19 |
| Bicalutamide | 15 |
| Tamsulosin Hcl | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Radiation Oncology Physician Overview
How John Triantafyllos, M.D. fits within the Radiation Oncology Physician landscape nationally.
6,141
Radiation Oncology Physician Providers in US
53
States with Radiation Oncology Physician
135
Avg Claims per Provider
John Triantafyllos, M.D.'s 100 claims are below the specialty average of 135.
Nationwide Radiation Oncology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Triantafyllos, both outside Iowa so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Radiation Oncology Physician Providers in Iowa
Other clinicians with the same primary specialty enrolled in Iowa, drawn from the same CMS NPPES roster as Triantafyllos.
One of 58 Radiation Oncology Physician providers enrolled in Iowa, 11 are shown on this page.
Dr. Candace Correa
M.D.
Cedar Rapids, IA
Dr. Brendan Coutu
M.D.
Waterloo, IA
Dr. Richard Deming
MD
Des Moines, IA
Dr. Mark Dion
MD
Iowa City, IA
Dr. Moses Evbuomwan
MD
Iowa City, IA
Compare Radiation Oncology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is John Triantafyllos, M.D.'s specialty? ▼
John Triantafyllos, M.D. specializes in Radiation Oncology Physician and practices in Des Moines, Iowa. Credentials: M.D..
How much does John Triantafyllos, M.D. prescribe under Medicare Part D? ▼
In 2024, John Triantafyllos, M.D. wrote 100 Medicare Part D claims totaling $1K in drug costs for 59 beneficiaries.
Where is John Triantafyllos, M.D. located? ▼
John Triantafyllos, M.D. is located at 1221 PLEASANT ST, Des Moines, IA, 50309. Phone: (515) 241-4330.
What is John Triantafyllos, M.D.'s NPI number? ▼
John Triantafyllos, M.D.'s National Provider Identifier (NPI) is 1720053705, issued on 02/22/2006.
Does John Triantafyllos, M.D. prescribe more brand-name or generic drugs? ▼
John Triantafyllos, M.D.'s prescribing is 17% brand-name and 83% generic drugs by claim count, with $507 in brand drug costs.
How many Radiation Oncology Physician providers are there in the US? ▼
There are 6,141 Radiation Oncology Physician providers across 53 states in the US. The average Radiation Oncology Physician provider writes 135 Medicare Part D claims per year.
What drugs does John Triantafyllos, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, John Triantafyllos, M.D.'s most frequently prescribed drugs include Betamethasone Valerate, Venlafaxine Hcl Er, Bicalutamide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Triantafyllos, M.D. accept Medicare? ▼
John Triantafyllos, M.D. appears in CMS Medicare data with 100 Part D claims and 59 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Triantafyllos, M.D.'s credentials? ▼
John Triantafyllos, M.D.'s NPI is 1720053705 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.