George Ansstas, MD
NPI 1790988053 · Medical Oncology Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
George Ansstas, MD is a Medical Oncology Physician provider in Saint Louis, MO (NPI 1790988053).
Provider details
- NPI number
- 1790988053
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2007026336 (MO)
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
19 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
795 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 338 | $123 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 119 | $9 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 88 | $121 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 71 | $14 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, Additional Sequential Infusion, 1 Hour Or Less96367 | 37 | $27 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 32 | $14 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 92 | 23 |
| Levothyroxine Sodium | 81 | 19 |
| Prochlorperazine Maleate | 53 | 31 |
| Binimetinibbrand: Mektovi | 47 | — |
| Encorafenibbrand: Braftovi | 39 | — |
| Apixabanbrand: Eliquis | 30 | — |
| Hydrocortisone | 30 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$11,581 across 11 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
- 2007-06-06
- Last updated
- 2025-04-15
Frequently asked questions
- What is George Ansstas's NPI number?
- George Ansstas's National Provider Identifier (NPI) is 1790988053, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is George Ansstas's specialty?
- George Ansstas is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is George Ansstas located?
- George Ansstas's practice location on file with NPPES is 4921 Parkview Pl, Saint Louis, MO 63110-1032.
- What is George Ansstas's phone number?
- The practice phone number listed in the NPPES registry for George Ansstas is (800) 647-2098.
- Does George Ansstas accept Medicare?
- George Ansstas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is George Ansstas's NPI active?
- Yes — George Ansstas's NPI (1790988053) is active in the NPPES registry as of the last update on 2025-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.