NPI registry status
Active
2026 NPPES data Hematology & Oncology Physician NPI 1063457737 MD
Verify on CMS → Dimitrios Diamandidis, MD
Hematology & Oncology Physician in Las Vegas, Nevada.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 11,232 in Hematology & 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
545
Medicare Part D claims · 165 beneficiaries · Hematology & Oncology Physician avg: 847
Generic prescribing
64%
generic claims · 36% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$205
4 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Dimitrios Diamandidis, MD filed 545 Medicare Part D claims in 2023 as a Hematology & Oncology Physician in Las Vegas, Nevada, prescribing 64% generic.
- 545
- Part D claims, 2023
- 64%
- generic prescribing
- $205
- industry payments (Sunshine Act)
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.
Dimitrios Diamandidis, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
545 Top 34% higher than 66% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
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Board-eligible specialty (heuristic, not verified)
Dimitrios Diamandidis, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Dimitrios Diamandidis, MD?
Quality data not reportedPrimary specialty
Hematology & Oncology Physician
Medicare Part D claims
545 36% vs specialty avg
Specialty distribution in Nevada
How Hematology & Oncology Physician compares to other specialties among Nevada 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 Hematology & 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).
Dimitrios Diamandidis, MD appears in the CMS NPPES registry as a Hematology & Oncology Physician provider holding MD credentials at 2650 N TENAYA WAY STE 201, Las Vegas, NV, 89128, with a listed phone of (702) 240-0088. NPI 1063457737 was issued on 06/18/2006.
Medicare Part D records for calendar year 2023 show 545 prescription claims written by this provider, covering 165 Medicare beneficiaries and totaling roughly $908K in drug spend, split 36% brand-name and 64% generic by claim count, with an opioid prescribing rate of 16.7%.
Hematology & Oncology Physician is a mid-sized specialty nationwide, with 11,232 enrolled providers across 54 states and an average of 847 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1063457737 |
|---|---|
| Specialty | Hematology & Oncology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/18/2006 |
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 Dimitrios Diamandidis, MD. Source: openpaymentsdata.cms.gov.
Total received
$205
Largest payer
Novartis Pharmaceuticals Corporation
Most common payment type
Long term medical supply or device loan
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 · Above average
Dimitrios Diamandidis, MD - brand share 36.0%
Hematology & Oncology Physician average
36% brand-name claims vs 64% generic, on 545 2023 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 2023.
545
Total Claims
$908K
Total Drug Cost
165
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 870
- Total Day Supply
- 24,793
- Brand vs Generic
- 36% brand / 64% generic
- Brand Drug Cost
- $763K
- Generic Drug Cost
- $146K
- Opioid Claims
- 91 (16.7% rate)
- Antibiotic Claims
- 14
Patient Demographics
- Average Patient Age
- 72.4 years
- Avg HCC Risk Score
- 2.16
- Gender Split
- 68% female / 32% male
- Age Distribution
- <65: 17, 65-74: 83, 75-84: 49, 85+: 16
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Dimitrios Diamandidis, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Letrozole
Letrozole
95 claims
- Eliquis
Eliquis
74 claims
- Oxycodone-Acetamin… 35
Oxycodone-Acetaminophen
35 claims
- Xarelto 31
Xarelto
31 claims
- Xgeva 21
Xgeva
21 claims
- Anastrozole 17
Anastrozole
17 claims
- Enoxaparin Sodium 16
Enoxaparin Sodium
16 claims
- Hydrocodone-Acetam… 14
Hydrocodone-Acetaminophen
14 claims
| Drug | Claims |
|---|---|
| Letrozole | 95 |
| Eliquis Apixaban | 74 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 35 |
| Xarelto Rivaroxaban | 31 |
| Xgeva Denosumab | 21 |
| Anastrozole | 17 |
| Enoxaparin Sodium | 16 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 14 |
| Hydroxyurea | 14 |
| Oxycodone Hcl | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Hematology & Oncology Physician Overview
How Dimitrios Diamandidis, MD fits within the Hematology & Oncology Physician landscape nationally.
11,232
Hematology & Oncology Physician Providers in US
54
States with Hematology & Oncology Physician
847
Avg Claims per Provider
Dimitrios Diamandidis, MD's 545 claims are below the specialty average of 847.
Nearby Hematology & Oncology Physician Providers in Nevada
Other clinicians with the same primary specialty enrolled in Nevada, drawn from the same CMS NPPES roster as Diamandidis.
Dr. Shamoon Ahmad
M.D.
Las Vegas, NV
Dr. Imran Ahmed
MD
Las Vegas, NV
Dr. Heather Allen
MD
Las Vegas, NV
Dr. Mary Ann Allison
MD
Henderson, NV
Dr. Carlos Araujo
MD
Las Vegas, NV
Compare Hematology & Oncology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Nevada medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Hematology & Oncology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Dimitrios Diamandidis, MD's specialty? ▼
Dimitrios Diamandidis, MD specializes in Hematology & Oncology Physician and practices in Las Vegas, Nevada. Credentials: MD.
How much does Dimitrios Diamandidis, MD prescribe under Medicare Part D? ▼
In 2023, Dimitrios Diamandidis, MD wrote 545 Medicare Part D claims totaling $908K in drug costs for 165 beneficiaries.
Where is Dimitrios Diamandidis, MD located? ▼
Dimitrios Diamandidis, MD is located at 2650 N TENAYA WAY STE 201, Las Vegas, NV, 89128. Phone: (702) 240-0088.
What is Dimitrios Diamandidis, MD's NPI number? ▼
Dimitrios Diamandidis, MD's National Provider Identifier (NPI) is 1063457737, issued on 06/18/2006.
Does Dimitrios Diamandidis, MD prescribe more brand-name or generic drugs? ▼
Dimitrios Diamandidis, MD's prescribing is 36% brand-name and 64% generic drugs by claim count, with $763K in brand drug costs.
Does Dimitrios Diamandidis, MD prescribe opioids? ▼
Yes, Dimitrios Diamandidis, MD had 91 opioid claims in 2023 with an opioid prescribing rate of 16.7%.
How many Hematology & Oncology Physician providers are there in the US? ▼
There are 11,232 Hematology & Oncology Physician providers across 54 states in the US. The average Hematology & Oncology Physician provider writes 847 Medicare Part D claims per year.
What drugs does Dimitrios Diamandidis, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Dimitrios Diamandidis, MD's most frequently prescribed drugs include Letrozole, Eliquis, Oxycodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Dimitrios Diamandidis, MD accept Medicare? ▼
Dimitrios Diamandidis, MD appears in CMS Medicare data with 545 Part D claims and 165 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Dimitrios Diamandidis, MD's credentials? ▼
Dimitrios Diamandidis, MD's NPI is 1063457737 with credentials MD. 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 (2023). 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 April 2026 (NPPES) / 2023 (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 May 2026.