Demetrius Loukas, M.D.
NPI 1154369775 · Medical Oncology Physician · Austin, TX
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Demetrius Loukas, M.D. is a Medical Oncology Physician provider in Austin, TX (NPI 1154369775).
Provider details
- NPI number
- 1154369775
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D8329 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
7,925 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 1,004 | $8 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 984 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 975 | $10 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 736 | $128 |
| Flow Cytometry Technique for Dna Or Cell Analysis, Each Additional Marker88185 | 484 | $24 |
| Measurement of Immunoglobulin Light Chains83521 | 260 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 54 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 105 | 22 |
| Anastrozole | 98 | 32 |
| Raloxifene Hcl | 87 | 22 |
| Gabapentin | 67 | 20 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 66 | 23 |
| Acalabrutinib Maleatebrand: Calquence | 63 | — |
| Rivaroxaban |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$192 across 9 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-04
- Last updated
- 2009-03-03
Frequently asked questions
- What is Demetrius Loukas's NPI number?
- Demetrius Loukas's National Provider Identifier (NPI) is 1154369775, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Demetrius Loukas's specialty?
- Demetrius Loukas is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Demetrius Loukas located?
- Demetrius Loukas's practice location on file with NPPES is 901 W 38th St, Austin, TX 78705-1165.
- What is Demetrius Loukas's phone number?
- The practice phone number listed in the NPPES registry for Demetrius Loukas is (512) 419-9733.
- Does Demetrius Loukas accept Medicare?
- Demetrius Loukas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Demetrius Loukas's NPI active?
- Yes — Demetrius Loukas's NPI (1154369775) is active in the NPPES registry as of the last update on 2009-03-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.