Physician
Zwirn, Marilyn
Zwirn, Marilyn was paid $800K by Medicaid between Jan 2018 and Dec 2024, across 30 billing codes. Its largest line is 99214, doctor's office visit, returning patient (more involved) — 28% of everything it billed.
33Billing provider infoZWIRN, MARILYN
LIBERTYVILLE, IL 60048
LIBERTYVILLE, IL 60048
33aNPI1619079134assigned 09/04/2006
33bProvider typePediatrics Physician
28Total paid$800K
24GClaims16,660
24DCodes billed30
24AFirst – last monthJan 2018 – Dec 2024
Compared with peers
Next to other Pediatrics Physician providers in Illinois
Rank by total paid#182 of 1,805
Median peer was paid$55K
This provider vs. median14×
Peers share this provider's primary NPPES type and state. Size alone says nothing about billing quality: a big agency or a hospital system is expected to sit far above the median.
Box 24A · Dates of service
Paid by month
Paid that monthNov–Dec 2024: claims still arriving when the file was cut, so these months run low for every provider
By year, as a table
| Year | Claims | Paid | |
|---|---|---|---|
| 2018 | 660 | $33K | |
| 2019 | 1,297 | $67K | |
| 2020 | 1,715 | $71K | |
| 2021 | 2,051 | $91K | |
| 2022 | 2,983 | $146K | |
| 2023 | 3,545 | $169K | |
| 2024incomplete | 4,409 | $223K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 99214 | Doctor's office visit, returning patient (more involved)Office or other outpatient visit for the evaluation and management of an established patient, moderate complexity | 28% | 2,860 | 2,625 | $222K |
| 99213 | Doctor's office visit, returning patient (routine)Office or other outpatient visit for the evaluation and management of an established patient, low complexity | 20% | 3,250 | 2,890 | $158K |
| 99392 | Periodic comprehensive preventive medicine reevaluation, established patient, early childhood (1-4 years) | 13% | 1,391 | 1,194 | $105K |
| 99391 | Periodic comprehensive preventive medicine reevaluation, established patient, infant (under 1 year) | 11% | 1,332 | 1,113 | $90K |
| 99393 | Periodic comprehensive preventive medicine reevaluation, established patient, late childhood (5-11 years) | 7.5% | 807 | 748 | $60K |
| 99394 | Periodic comprehensive preventive medicine reevaluation, established patient, adolescent (12-17 years) | 5.0% | 485 | 434 | $40K |
| 96127 | 2.3% | 1,012 | 868 | $19K | |
| 90677 | 2.1% | 302 | 263 | $17K | |
| 87428 | 1.5% | 193 | 160 | $12K | |
| 96110 | Developmental screening, with scoring and documentation, per standardized instrument | 1.4% | 565 | 510 | $11K |
| 90686 | 1.2% | 837 | 767 | $10K | |
| 90670 | <1% | 470 | 400 | $8K |
18 more codes
| 90723 | <1% | 436 | $6K | |
| 90647 | <1% | 443 | $6K | |
| 90651 | <1% | 171 | $5K | |
| 90680 | <1% | 317 | $5K | |
| 99212 | Office or other outpatient visit for the evaluation and management of an established patient, straightforward | <1% | 189 | $5K |
| 87804 | Infectious agent antigen detection by immunoassay; Influenza, each type | <1% | 153 | $4K |
| 90734 | <1% | 192 | $3K | |
| 90633 | <1% | 203 | $3K | |
| 90656 | <1% | 152 | $3K | |
| 83655 | <1% | 174 | $2K | |
| 87880 | Infectious agent antigen detection by immunoassay; Streptococcus, group A | <1% | 126 | $2K |
| 99211 | Office or other outpatient visit for the evaluation and management of an established patient, minimal severity | <1% | 133 | $2K |
| 87426 | Infectious agent antigen detection, SARS-CoV-2 (COVID-19) | <1% | 41 | $1K |
| 87807 | <1% | 89 | $891.64 | |
| 85018 | <1% | 252 | $577.68 | |
| 90715 | <1% | 43 | $441.51 | |
| 85025 | Blood count; complete (CBC), automated, and automated differential WBC count | <1% | 29 | $166.46 |
| 82306 | Vitamin D; 25 hydroxy, includes fraction(s), if performed | <1% | 13 | $115.18 |
Claims and beneficiary counts add up across code × month rows, so one patient seen every month counts many times. Rows with fewer than 12 claims are suppressed by HHS, so small lines can be missing.