Doctor profile · Federal record
Dr. Steven Siwik, MD
Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Vascular & Interventional Radiology Physician · Diagnostic Ultrasound Physician · Body Imaging Physician · Tucson, AZ
- NPI 1821069089
- Accepts Medicare
- MIPS 61.0 / 100 · 2023
- 33 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
677 N Wilmot RD
Tucson, AZ 857112701
(520) 795-2889
fax (520) 795-6321
Credentials & registration
- NPI registered
- January 2006 — 20 yrs on file
- Profile last updated
- February 27, 2013
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 2085R0202X — NUCC code
- State license (1)
- Arizona #22916
- Medicaid
- AZ #373952
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821069089. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
19,264
Distinct HCPCS
10
Medicare allowed
$249,188
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
Q9967 |
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 16,505 | 163 | $0 | |
71045 |
X-ray of chest, 1 view | 284 | 259 | $9 | |
76536 |
Ultrasound scan of head and neck soft tissue | 212 | 211 | $107 | |
71275 |
Ct scan of blood vessels of chest with contrast | 163 | 163 | $84 | |
93880 |
Ultrasound of both sides of head and neck blood flow | 131 | 131 | $185 | |
74177 |
Ct scan of abdomen and pelvis with contrast | 124 | 122 | $86 | |
71250 |
Ct scan of chest without contrast | 119 | 119 | $50 | |
71046 |
X-ray of chest, 2 views | 106 | 105 | $29 | |
99152 |
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 82 | 78 | $12 | |
71250 |
Ct scan of chest without contrast | 78 | 77 | $123 |
In context: peer comparison
Among 67 peers in this city , average services per provider: 458. This provider delivers 42× the peer median.Frequently asked questions
What is Dr. Steven Siwik's medical specialty?
Dr. Steven Siwik practices Diagnostic Radiology Physician in Tucson, AZ.
Where does Dr. Steven Siwik practice?
Dr. Steven Siwik practices at 677 N Wilmot RD, Tucson, AZ 857112701. Office phone: 5207952889.
What is Dr. Steven Siwik's NPI?
Dr. Steven Siwik's National Provider Identifier (NPI) is 1821069089, issued by NPPES.
Does Dr. Steven Siwik accept Medicare assignment?
Yes. Dr. Steven Siwik accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Steven Siwik commonly perform?
Top Medicare-reported procedures in 2023: Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); X-ray of chest, 1 view (HCPCS 71045); Ultrasound scan of head and neck soft tissue (HCPCS 76536). Source: CMS Medicare Physician & Other Practitioners file.