Doctor profile · Federal record
Dr. Patrick Grierson, MD
Medical Oncology Physician (CMS: Medical Oncology) · Internal Medicine Physician · Saint Louis, MO
- NPI 1720492192
- Accepts Medicare
- MIPS 79.3 / 100 · 2023
- 12 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
10 Barnes West Dr, Div Im Medical Oncology, Mob #2
Saint Louis, MO 631416287
(800) 647-2098
fax (314) 362-3192 - Mailing address
-
Po Box 7412011
Chicago, IL 606742011
Credentials & registration
- NPI registered
- June 2014 — 12 yrs on file
- Profile last updated
- April 17, 2025
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 207RX0202X — NUCC code
- State license (1)
- Missouri #2017020379
- Medicaid
- MO #200063712
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1720492192. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
32,765
Distinct HCPCS
10
Medicare allowed
$343,973
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J9263 |
Injection, oxaliplatin, 0.5 mg | 8,900 | 12 | $0 | |
J1453 |
Injection, fosaprepitant, 1 mg | 7,200 | 23 | $0 | |
Q5101 |
Injection, filgrastim-sndz, biosimilar, (zarxio), 1 microgram | 6,420 | 11 | $0 | |
J9271 |
Injection, pembrolizumab, 1 mg | 4,600 | 12 | $52 | |
J1100 |
Injection, dexamethasone sodium phosphate, 1 mg | 1,290 | 63 | $0 | |
J2469 |
Injection, palonosetron hcl, 25 mcg | 930 | 46 | $1 | |
J0640 |
Injection, leucovorin calcium, per 50 mg | 656 | 24 | $4 | |
J9190 |
Injection, fluorouracil, 500 mg | 512 | 26 | $2 | |
J1626 |
Injection, granisetron hydrochloride, 100 mcg | 460 | 28 | $0 | |
96375 |
Injection of additional new drug or substance into vein | 238 | 75 | $15 |
In context: peer comparison
Among 44 peers in this city , average services per provider: 919. This provider delivers 36× the peer median.Open Payments
Industry payments received
All-time total
$2,214
Transactions
4
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals LP | 3 | $2,199.85 | |
| TAIHO ONCOLOGY, INC. | 1 | $13.85 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
786
Patients
350
Total drug cost
$177,974
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prochlorperazine Maleate | Generic | 116 | 70 | $4,516 |
| Dexamethasone | Generic | 87 | 47 | $1,224 |
| Ondansetron Hcl | Generic | 83 | 53 | $1,240 |
| Eliquis (Apixaban) | Brand | 77 | 20 | $52,986 |
| Gabapentin | Generic | 68 | 19 | $1,256 |
| Potassium Chloride | Generic | 64 | 23 | $1,088 |
| Oxycodone Hcl | Generic | 48 | 20 | $1,232 |
| Loperamide (Loperamide Hcl) | Brand | 42 | 22 | $938 |
| Pantoprazole Sodium | Generic | 41 | 13 | $367 |
| Prednisone | Generic | 34 | 11 | $162 |
Hospital affiliations
Frequently asked questions
What is Dr. Patrick Grierson's medical specialty?
Dr. Patrick Grierson practices Medical Oncology Physician in Saint Louis, MO.
Where does Dr. Patrick Grierson practice?
Dr. Patrick Grierson practices at 10 Barnes West Dr, Saint Louis, MO 631416287. Office phone: 8006472098.
What is Dr. Patrick Grierson's NPI?
Dr. Patrick Grierson's National Provider Identifier (NPI) is 1720492192, issued by NPPES.
Does Dr. Patrick Grierson accept Medicare assignment?
Yes. Dr. Patrick Grierson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Patrick Grierson commonly perform?
Top Medicare-reported procedures in 2023: Injection, oxaliplatin, 0.5 mg (HCPCS J9263); Injection, fosaprepitant, 1 mg (HCPCS J1453); Injection, filgrastim-sndz, biosimilar, (zarxio), 1 microgram (HCPCS Q5101). Source: CMS Medicare Physician & Other Practitioners file.