Doctor profile · Federal record
Dr. Marek Krysztofiak
Internal Medicine Physician (CMS: Internal Medicine) · Chicago, IL
- NPI 1174774426
- Accepts Medicare
- 24 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
2525 S Michigan Ave, Mercy Hospital/Department of Internal Medicine
Chicago, IL 606162333
(312) 567-2000 - Mailing address
-
920 W Madison St, Unit D8
Chicago, IL 606072718
Credentials & registration
- NPI registered
- October 2008 — 18 yrs on file
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Illinois #125.045416
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1174774426. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
937
Distinct HCPCS
6
Medicare allowed
$93,453
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 564 | 180 | $80 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 103 | 48 | $120 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 97 | 91 | $175 | |
99239 |
Hospital discharge day management, more than 30 minutes | 71 | 71 | $116 | |
99238 |
Hospital discharge day management, 30 minutes or less | 53 | 52 | $81 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 49 | 48 | $132 |
In context: peer comparison
Among 487 peers in Chicago Internal Medicine Physician, average services per provider: 168. This provider delivers 5.6× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
98
Patients
70
Total drug cost
$8,251
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 20 | 0 | $202 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 19 | 13 | $589 |
| Oxycodone Hcl | Generic | 19 | 18 | $45 |
| Methylprednisolone | Generic | 15 | 15 | $155 |
| Doxycycline Hyclate | Generic | 13 | 13 | $153 |
| Eliquis (Apixaban) | Brand | 12 | 11 | $7,107 |
Hospital affiliations
Frequently asked questions
What is Dr. Marek Krysztofiak's medical specialty?
Dr. Marek Krysztofiak practices Internal Medicine Physician in Chicago, IL.
Where does Dr. Marek Krysztofiak practice?
Dr. Marek Krysztofiak practices at 2525 S Michigan Ave, Chicago, IL 606162333. Office phone: 3125672000.
What is Dr. Marek Krysztofiak's NPI?
Dr. Marek Krysztofiak's National Provider Identifier (NPI) is 1174774426, issued by NPPES.
Does Dr. Marek Krysztofiak accept Medicare assignment?
Yes. Dr. Marek Krysztofiak accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marek Krysztofiak commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.