Doctor profile · Federal record
Dr. Gregory Gerstner, M.D.
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Hematology & Oncology Physician · Peoria, IL
- NPI 1629288659
- Accepts Medicare
- MIPS 70.4 / 100 · 2023
- 24 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
8940 N Wood Sage RD
Peoria, IL 616157822
(309) 243-3000
fax (309) 243-3069
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- March 2, 2026
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State licenses (2)
- Illinois #036.120707 · Arizona #PG PERMIT# 80968
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1629288659. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
222,767
Distinct HCPCS
10
Medicare allowed
$2,421,612
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
Q0138 |
Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) | 44,880 | 68 | $1 | |
J1439 |
Injection, ferric carboxymaltose, 1 mg | 24,750 | 25 | $1 | |
J9271 |
Injection, pembrolizumab, 1 mg | 18,600 | 26 | $50 | |
J9025 |
Injection, azacitidine, 1 mg | 16,500 | 16 | $0 | |
J0881 |
Injection, darbepoetin alfa, 1 microgram (non-esrd use) | 15,630 | 13 | $3 | |
J9267 |
Injection, paclitaxel, 1 mg | 14,649 | 28 | $0 | |
J9263 |
Injection, oxaliplatin, 0.5 mg | 9,900 | 11 | $0 | |
J0185 |
Injection, aprepitant, 1 mg | 9,750 | 33 | $2 | |
Q9967 |
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 7,565 | 79 | $0 | |
J1453 |
Injection, fosaprepitant, 1 mg | 6,900 | 24 | $0 |
In context: peer comparison
Among 7 peers in Peoria Hematology & Oncology Physician, average services per provider: 2,383. This provider delivers 93× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,898
Patients
548
Total drug cost
$1,583,457
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Acyclovir | Generic | 218 | 53 | $2,879 |
| Levothyroxine Sodium | Generic | 209 | 48 | $2,189 |
| Dexamethasone | Generic | 166 | 53 | $2,884 |
| Prednisone | Generic | 163 | 50 | $1,359 |
| Hydroxyurea | Generic | 142 | 25 | $2,849 |
| Eliquis (Apixaban) | Brand | 137 | 31 | $93,424 |
| Prochlorperazine Maleate | Generic | 130 | 82 | $1,468 |
| Potassium Chloride | Generic | 118 | 35 | $4,696 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 104 | 33 | $525 |
| Ondansetron Odt (Ondansetron) | Brand | 99 | 46 | $1,606 |
Hospital affiliations
Frequently asked questions
What is Dr. Gregory Gerstner's medical specialty?
Dr. Gregory Gerstner practices Hematology & Oncology Physician in Peoria, IL.
Where does Dr. Gregory Gerstner practice?
Dr. Gregory Gerstner practices at 8940 N Wood Sage RD, Peoria, IL 616157822. Office phone: 3092433000.
What is Dr. Gregory Gerstner's NPI?
Dr. Gregory Gerstner's National Provider Identifier (NPI) is 1629288659, issued by NPPES.
Does Dr. Gregory Gerstner accept Medicare assignment?
Yes. Dr. Gregory Gerstner accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Gerstner commonly perform?
Top Medicare-reported procedures in 2023: Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) (HCPCS Q0138); Injection, ferric carboxymaltose, 1 mg (HCPCS J1439); Injection, pembrolizumab, 1 mg (HCPCS J9271). Source: CMS Medicare Physician & Other Practitioners file.