Physician
Perez, Walter
Perez, Walter was paid $3.80M by Medicaid between Jan 2018 and Dec 2024, across 58 billing codes. Its largest line is 99213, doctor's office visit, returning patient (routine) — 24% of everything it billed.
33Billing provider infoPEREZ, WALTER
CHICAGO, IL 60623
CHICAGO, IL 60623
33aNPI1558475996assigned 08/19/2006
33bProvider typePediatrics Physician
28Total paid$3.80M
24GClaims124,570
24DCodes billed58
24AFirst – last monthJan 2018 – Dec 2024
Compared with peers
Next to other Pediatrics Physician providers in Illinois
Rank by total paid#15 of 1,805
Median peer was paid$55K
This provider vs. median69×
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 | 19,242 | $564K | |
| 2019 | 24,538 | $728K | |
| 2020 | 26,405 | $699K | |
| 2021 | 20,020 | $625K | |
| 2022 | 16,550 | $526K | |
| 2023 | 9,554 | $326K | |
| 2024incomplete | 8,261 | $330K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 99213 | Doctor's office visit, returning patient (routine)Office or other outpatient visit for the evaluation and management of an established patient, low complexity | 24% | 19,372 | 15,569 | $920K |
| 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 | 15% | 7,417 | 6,296 | $562K |
| 99392 | Periodic comprehensive preventive medicine reevaluation, established patient, early childhood (1-4 years) | 12% | 5,786 | 4,601 | $438K |
| 99393 | Periodic comprehensive preventive medicine reevaluation, established patient, late childhood (5-11 years) | 9.3% | 4,739 | 3,978 | $353K |
| 99391 | Periodic comprehensive preventive medicine reevaluation, established patient, infant (under 1 year) | 8.1% | 4,529 | 3,667 | $308K |
| 99394 | Periodic comprehensive preventive medicine reevaluation, established patient, adolescent (12-17 years) | 6.9% | 3,221 | 2,697 | $264K |
| 96127 | 5.3% | 11,194 | 9,179 | $200K | |
| 96110 | Developmental screening, with scoring and documentation, per standardized instrument | 3.1% | 6,751 | 5,560 | $119K |
| 92587 | 2.1% | 5,976 | 4,387 | $79K | |
| 92586 | 1.9% | 1,787 | 1,359 | $71K | |
| 90686 | 1.4% | 5,778 | 5,023 | $54K | |
| 90670 | 1.3% | 3,283 | 2,738 | $50K |
46 more codes
| D1206 | Topical application of fluoride varnish | <1% | 1,226 | $32K |
| 85018 | <1% | 12,864 | $29K | |
| 90648 | <1% | 2,932 | $28K | |
| 83655 | <1% | 2,350 | $27K | |
| 99212 | Office or other outpatient visit for the evaluation and management of an established patient, straightforward | <1% | 1,067 | $27K |
| 90651 | <1% | 1,490 | $26K | |
| 90723 | <1% | 2,361 | $23K | |
| 90633 | <1% | 2,136 | $19K | |
| 87804 | Infectious agent antigen detection by immunoassay; Influenza, each type | <1% | 606 | $16K |
| 87880 | Infectious agent antigen detection by immunoassay; Streptococcus, group A | <1% | 1,036 | $16K |
| 99211 | Office or other outpatient visit for the evaluation and management of an established patient, minimal severity | <1% | 1,214 | $15K |
| 90681 | <1% | 1,377 | $15K | |
| 90734 | <1% | 1,187 | $15K | |
| 36416 | <1% | 3,747 | $14K | |
| 90716 | <1% | 802 | $9K | |
| 90677 | <1% | 179 | $8K | |
| 90707 | <1% | 713 | $7K | |
| 90700 | <1% | 742 | $7K | |
| 99239 | Hospital discharge day management, more than 30 minutes | <1% | 100 | $5K |
| 90696 | <1% | 497 | $5K | |
| 90710 | <1% | 454 | $4K | |
| 90715 | <1% | 504 | $4K | |
| 90647 | <1% | 473 | $4K | |
| 99383 | <1% | 40 | $4K | |
| 99381 | <1% | 37 | $3K | |
| 96160 | <1% | 212 | $3K | |
| 87426 | Infectious agent antigen detection, SARS-CoV-2 (COVID-19) | <1% | 88 | $3K |
| 99382 | <1% | 22 | $2K | |
| 90688 | <1% | 111 | $2K | |
| 99460 | <1% | 37 | $2K | |
| 99384 | <1% | 13 | $1K | |
| 0081A | <1% | 23 | $961.40 | |
| 87807 | <1% | 89 | $794.74 | |
| 0124A | <1% | 18 | $752.40 | |
| 99203 | Doctor's office visit, new patient (routine) | <1% | 16 | $676.80 |
| 94640 | Pressurized or nonpressurized inhalation treatment for acute airway obstruction | <1% | 30 | $413.25 |
| 90698 | <1% | 16 | $267.36 | |
| 90713 | <1% | 14 | $225.64 | |
| 81002 | <1% | 53 | $137.80 | |
| 90744 | <1% | 15 | $122.14 | |
| 91307 | <1% | 28 | $0.03 | |
| 91308 | <1% | 20 | $0.02 | |
| 96161 | 0% | 237 | $0.00 | |
| 97802 | 0% | 27 | $0.00 | |
| 90461 | 0% | 995 | $0.00 | |
| 90460 | Immunization administration through 18 years of age via any route, first or only component | 0% | 2,539 | $0.00 |
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.