Nikolaos Trikalinos, MD
NPI 1790947224 · Medical Oncology Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nikolaos Trikalinos, MD is a Medical Oncology Physician provider in Saint Louis, MO (NPI 1790947224).
Provider details
- NPI number
- 1790947224
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2017011103 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,311 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Injection of Additional New Drug Or Substance Into Vein96375 | 184 | $14 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 183 | $121 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 179 | $123 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 144 | $14 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 120 | $9 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Additional Sequential Infusion, 1 Hour Or Less96367 | 117 | $27 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prochlorperazine Maleate | 37 | 20 |
| Apixabanbrand: Eliquis | 37 | — |
| Dexamethasone | 35 | 20 |
| Ondansetron Hcl | 30 | 18 |
| Oxycodone Hcl | 28 | — |
| Potassium Chloride | 20 | — |
| Tramadol Hcl | 18 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-06-26
- Last updated
- 2025-04-17
Frequently asked questions
- What is Nikolaos Trikalinos's NPI number?
- Nikolaos Trikalinos's National Provider Identifier (NPI) is 1790947224, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nikolaos Trikalinos's specialty?
- Nikolaos Trikalinos is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Nikolaos Trikalinos located?
- Nikolaos Trikalinos's practice location on file with NPPES is 4921 Parkview Pl, Saint Louis, MO 63110-1032.
- What is Nikolaos Trikalinos's phone number?
- The practice phone number listed in the NPPES registry for Nikolaos Trikalinos is (800) 647-2098.
- Does Nikolaos Trikalinos accept Medicare?
- Nikolaos Trikalinos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nikolaos Trikalinos's NPI active?
- Yes — Nikolaos Trikalinos's NPI (1790947224) is active in the NPPES registry as of the last update on 2025-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.