Doctor profile · Federal record
Dr. Mary Fidler, M.D.
Medical Oncology Physician (CMS: Medical Oncology) · Chicago, IL
- NPI 1598960494
- Accepts Medicare
- 25 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1725 W Harrison St, Suite 1010
Chicago, IL 606123841
(312) 942-5904
Credentials & registration
- NPI registered
- June 2007 — 19 yrs on file
- Profile last updated
- April 14, 2011
- Year of graduation
- 2001 — 25 yrs since
- Specialty taxonomy
- 207RX0202X — NUCC code
- State license (1)
- Illinois #036-110775
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1598960494. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
596
Distinct HCPCS
8
Medicare allowed
$77,376
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 197 | 90 | $149 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 131 | 83 | $101 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 91 | 43 | $150 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 65 | 36 | $102 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 42 | 35 | $69 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 33 | 33 | $189 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 25 | 23 | $182 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 12 | 11 | $69 |
In context: peer comparison
Among 25 peers in this city , average services per provider: 1,025. This provider delivers 0.6× the peer median.Open Payments
Industry payments received
All-time total
$65,529
Transactions
61
Manufacturers
13
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novocure Inc. | 16 | $21,304.77 | |
| AstraZeneca Pharmaceuticals LP | 14 | $11,642.47 | |
| Gilead Sciences, Inc. | 3 | $8,230.72 | |
| EMD Serono, Inc. | 2 | $7,600.00 | |
| Lilly USA, LLC | 3 | $7,600.00 | |
| Daiichi Sankyo Inc. | 14 | $6,196.16 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 1 | $2,220.00 | |
| E.R. Squibb & Sons, L.L.C. | 1 | $325.00 | |
| AstraZeneca UK Limited | 3 | $157.79 | |
| Coherus Biosciences Inc. | 1 | $142.27 | |
| PFIZER INC. | 1 | $40.25 | |
| Amgen Inc. | 1 | $37.32 | |
| Genentech USA, Inc. | 1 | $31.85 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
511
Patients
192
Total drug cost
$1,505,729
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 65 | 19 | $947 |
| Ondansetron Hcl | Generic | 64 | 44 | $638 |
| Tagrisso (Osimertinib Mesylate) | Brand | 59 | 11 | $1,058,259 |
| Prochlorperazine Maleate | Generic | 56 | 35 | $665 |
| Dexamethasone | Generic | 52 | 32 | $759 |
| Prednisone | Generic | 44 | 24 | $289 |
| Eliquis (Apixaban) | Brand | 31 | 11 | $19,012 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 26 | 16 | $459 |
| Pantoprazole Sodium | Generic | 22 | 0 | $468 |
| Gavreto (Pralsetinib) | Brand | 19 | 0 | $111,728 |
Frequently asked questions
What is Dr. Mary Fidler's medical specialty?
Dr. Mary Fidler practices Medical Oncology Physician in Chicago, IL.
Where does Dr. Mary Fidler practice?
Dr. Mary Fidler practices at 1725 W Harrison St, Chicago, IL 606123841. Office phone: 3129425904.
What is Dr. Mary Fidler's NPI?
Dr. Mary Fidler's National Provider Identifier (NPI) is 1598960494, issued by NPPES.
Does Dr. Mary Fidler accept Medicare assignment?
Yes. Dr. Mary Fidler accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mary Fidler commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.