Doctor profile · Federal record
Dr. George Ansstas, MD
Medical Oncology Physician (CMS: Medical Oncology) · Internal Medicine Physician · Saint Louis, MO
- NPI 1790988053
- Accepts Medicare
- MIPS 79.3 / 100 · 2023
- 25 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4921 Parkview Pl, Div Im Medical Oncology, Ste 7A, 7B, 7C
Saint Louis, MO 631101032
(800) 647-2098
fax (314) 362-3192 - Mailing address
-
Po Box 7412011
Chicago, IL 606742011
Credentials & registration
- NPI registered
- June 2007 — 19 yrs on file
- Profile last updated
- April 15, 2025
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207RX0202X — NUCC code
- State license (1)
- Missouri #2007026336
- Medicaid
- MO #207520909
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1790988053. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
24,412
Distinct HCPCS
10
Medicare allowed
$787,705
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J9299 |
Injection, nivolumab, 1 mg | 8,240 | 12 | $30 | |
J9271 |
Injection, pembrolizumab, 1 mg | 8,200 | 15 | $54 | |
J1453 |
Injection, fosaprepitant, 1 mg | 4,050 | 16 | $0 | |
J1100 |
Injection, dexamethasone sodium phosphate, 1 mg | 850 | 38 | $0 | |
J1626 |
Injection, granisetron hydrochloride, 100 mcg | 450 | 20 | $0 | |
J0640 |
Injection, leucovorin calcium, per 50 mg | 407 | 11 | $4 | |
J2469 |
Injection, palonosetron hcl, 25 mcg | 370 | 21 | $1 | |
J9190 |
Injection, fluorouracil, 500 mg | 350 | 15 | $2 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 338 | 133 | $126 | |
36415 |
Insertion of needle into vein for collection of blood sample | 265 | 91 | $8 |
In context: peer comparison
Among 44 peers in Saint Louis Medical Oncology Physician, average services per provider: 919. This provider delivers 27× the peer median.Open Payments
Industry payments received
All-time total
$11,581
Transactions
11
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| F. Hoffmann-la Roche Ag | 6 | $11,205.61 | |
| E.R. Squibb & Sons, L.L.C. | 2 | $188.77 | |
| Immunocore Limited | 1 | $100.04 | |
| Tempus Ai, INC | 1 | $82.41 | |
| Array Biopharma INC | 1 | $3.80 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
462
Patients
85
Total drug cost
$25,843
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 100 | 23 | $524 |
| Levothyroxine Sodium | Generic | 80 | 19 | $887 |
| Prochlorperazine Maleate | Generic | 58 | 43 | $1,629 |
| Hydrocortisone | Generic | 41 | 0 | $731 |
| Eliquis (Apixaban) | Brand | 31 | 0 | $19,716 |
| Hydroxyzine Hcl | Generic | 21 | 0 | $409 |
| Gabapentin | Generic | 20 | 0 | $124 |
| Levetiracetam | Generic | 16 | 0 | $482 |
| Morphine Sulfate ER (Morphine Sulfate) | Brand | 15 | 0 | $207 |
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 15 | 0 | $122 |
Hospital affiliations
Frequently asked questions
What is Dr. George Ansstas's medical specialty?
Dr. George Ansstas practices Medical Oncology Physician in Saint Louis, MO.
Where does Dr. George Ansstas practice?
Dr. George Ansstas practices at 4921 Parkview Pl, Saint Louis, MO 631101032. Office phone: 8006472098.
What is Dr. George Ansstas's NPI?
Dr. George Ansstas's National Provider Identifier (NPI) is 1790988053, issued by NPPES.
Does Dr. George Ansstas accept Medicare assignment?
Yes. Dr. George Ansstas accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. George Ansstas commonly perform?
Top Medicare-reported procedures in 2023: Injection, nivolumab, 1 mg (HCPCS J9299); Injection, pembrolizumab, 1 mg (HCPCS J9271); Injection, fosaprepitant, 1 mg (HCPCS J1453). Source: CMS Medicare Physician & Other Practitioners file.