Doctor profile · Federal record
Dr. Matthew Siegel, MD
Hematology & Oncology Physician (CMS: Hematology/Oncology) · Internal Medicine Physician · Naperville, IL
- NPI 1639333263
- Accepts Medicare
- MIPS 91.4 / 100 · 2023
- 18 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
120 Spalding Dr Ste 111
Naperville, IL 605406766
(630) 527-3788
Credentials & registration
- NPI registered
- July 2008 — 18 yrs on file
- Profile last updated
- March 12, 2021
- Year of graduation
- 2008 — 18 yrs since
- Specialty taxonomy
- 207RH0003X — NUCC code
- State licenses (2)
- Oregon #PG158554 · Illinois #125054173
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1639333263. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,306
Distinct HCPCS
6
Medicare allowed
$149,133
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 598 | 158 | $150 | |
G2212 |
Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | 239 | 70 | $33 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 193 | 121 | $100 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 182 | 78 | $83 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 70 | 61 | $180 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 24 | 24 | $191 |
In context: peer comparison
Among 7 peers in Naperville Hematology & Oncology Physician, average services per provider: 138. This provider delivers 9.5× the peer median.Open Payments
Industry payments received
All-time total
$82
Transactions
4
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Tempus Ai, INC | 3 | $56.88 | |
| Astellas Pharma US INC | 1 | $25.09 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
777
Patients
147
Total drug cost
$1,773,201
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Eliquis (Apixaban) | Brand | 175 | 41 | $184,971 |
| Prednisone | Generic | 125 | 20 | $760 |
| Abiraterone Acetate | Generic | 97 | 13 | $46,513 |
| Gabapentin | Generic | 49 | 12 | $567 |
| Xarelto (Rivaroxaban) | Brand | 45 | 14 | $60,327 |
| Acyclovir | Generic | 41 | 0 | $662 |
| Lenalidomide | Generic | 38 | 0 | $549,414 |
| Potassium Chloride | Generic | 32 | 11 | $1,134 |
| Dexamethasone | Generic | 29 | 0 | $354 |
| Ondansetron Hcl | Generic | 27 | 19 | $222 |
Frequently asked questions
What is Dr. Matthew Siegel's medical specialty?
Dr. Matthew Siegel practices Hematology & Oncology Physician in Naperville, IL.
Where does Dr. Matthew Siegel practice?
Dr. Matthew Siegel practices at 120 Spalding Dr Ste 111, Naperville, IL 605406766. Office phone: 6305273788.
What is Dr. Matthew Siegel's NPI?
Dr. Matthew Siegel's National Provider Identifier (NPI) is 1639333263, issued by NPPES.
Does Dr. Matthew Siegel accept Medicare assignment?
Yes. Dr. Matthew Siegel accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Matthew Siegel commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (HCPCS G2212); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.