Doctor profile · Federal record
Dr. Andrej Zajac, M.D.
Radiation Oncology Physician (CMS: Radiation Oncology) · Munster, IN
- NPI 1316929623
- Accepts Medicare
- 45 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
901 Macarthur Blvd, Radiation Oncology Department
Munster, IN 463212901
(219) 836-6390 - Mailing address
-
9201 Calumet Ave
Munster, IN 463212807
Credentials & registration
- NPI registered
- November 2005 — 21 yrs on file
- Profile last updated
- June 4, 2013
- Year of graduation
- 1981 — 45 yrs since
- Specialty taxonomy
- 2085R0001X — NUCC code
- State license (1)
- Indiana #01040122
- Medicaid
- IN #100327210
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1316929623. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,527
Distinct HCPCS
10
Medicare allowed
$239,352
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
77300 |
Calculation of radiation therapy dose | 484 | 100 | $30 | |
G6002 |
Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy | 372 | 40 | $19 | |
77427 |
Radiation treatment management, 5 treatment sessions | 352 | 98 | $175 | |
77334 |
Design and construction of complex radiation treatment device | 287 | 108 | $56 | |
77014 |
Ct guidance for insertion of radiation therapy fields | 185 | 41 | $41 | |
77263 |
Complex radiation therapy planning | 120 | 105 | $152 | |
77280 |
Obtaining data needed to develop the optimal radiation treatment, 1 treatment area | 116 | 60 | $35 | |
77290 |
Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved | 110 | 68 | $77 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 86 | 86 | $169 | |
77338 |
Design and construction of radiation treatment device for high precision radiation therapy | 81 | 52 | $211 |
In context: peer comparison
Among 4 peers in Munster Radiation Oncology Physician, average services per provider: 131. This provider delivers 19× the peer median.Open Payments
Industry payments received
All-time total
$63
Transactions
3
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Bayer Healthcare Pharmaceuticals INC. | 1 | $25.50 | |
| Stryker Corporation | 1 | $24.11 | |
| Tactile Systems Technology INC | 1 | $13.36 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
186
Patients
61
Total drug cost
$50,883
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Tamsulosin Hcl | Generic | 87 | 31 | $1,061 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 30 | 18 | $589 |
| Ibuprofen | Generic | 28 | 12 | $182 |
| Dexamethasone | Generic | 23 | 0 | $225 |
| Orgovyx (Relugolix) | Brand | 18 | 0 | $48,825 |
Hospital affiliations
Frequently asked questions
What is Dr. Andrej Zajac's medical specialty?
Dr. Andrej Zajac practices Radiation Oncology Physician in Munster, IN.
Where does Dr. Andrej Zajac practice?
Dr. Andrej Zajac practices at 901 Macarthur Blvd, Munster, IN 463212901. Office phone: 2198366390.
What is Dr. Andrej Zajac's NPI?
Dr. Andrej Zajac's National Provider Identifier (NPI) is 1316929623, issued by NPPES.
Does Dr. Andrej Zajac accept Medicare assignment?
Yes. Dr. Andrej Zajac accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Andrej Zajac commonly perform?
Top Medicare-reported procedures in 2023: Calculation of radiation therapy dose (HCPCS 77300); Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (HCPCS G6002); Radiation treatment management, 5 treatment sessions (HCPCS 77427). Source: CMS Medicare Physician & Other Practitioners file.