Why are Medicare and Medicaid shown separately instead of combined?

They come from two different CMS data sources with no shared claim identifier, so they can't be reconciled into one number without double-counting or guessing. Every table and chart on this page keeps them fully separate.

Why is there no private/commercial revenue figure?

Private and commercial payer data comes from Transparency in Coverage files, which only publish negotiated rates — not claims or utilization volume. Without a volume figure, no revenue number can be computed for any provider from that data.

What does "Rank" mean in the Competitive Analysis & Benchmarks tables?

For a given CPT/HCPCS code, it's this provider's position by claims volume among all providers billing that same code at that geography level (State, National, or Illinois for Medicaid) — rank 1 means the highest claims volume for that code.

Why is the Medicaid comparison limited to Illinois only?

Medicaid is administered per-state with no single national fee schedule, so a state or national comparison the way Medicare has one isn't available. Illinois (this provider's own state) is the only grouping that's conceptually meaningful.

Why are the numbers rounded to the nearest 10?

To avoid implying more precision than the underlying data supports at a single-provider level. Ratios are kept precise since they're a relative comparison, not a volume or dollar figure.

How current is this data?

The Medicare and Medicaid tables are both single current snapshots, not refreshed on a recurring schedule yet.

Walter Perez (NPI 1558475996)

Field	Value
Entity Type	Individual
Organization	Walter Perez
Address	2859 S Pulaski Rd
City	Chicago
State	IL
ZIP	60623
Taxonomy	Pediatrics Physician
NPI Enumerated	August 19, 2006

Payer Source	Total Paid
Medicaid	$3.8M
Medicare	$0

Medicaid: Complete Services Breakdown

Every CPT/HCPCS code this provider has billed to Medicaid, with claims volume, average payment, and total revenue.

58 rows

CPT/HCPCS Code	Description	Claims	Avg Paid	Revenue
99213	The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a low level of medical decision making, and/or the…	19,370	$50	$910.5K
99214	The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a moderate level of medical decision making, and/or the…	7,420	$80	$563.7K
99392	Preventive medicine services are provided to individuals who are not in need of any immediate medical attention, but need to undergo a periodic health checkup as a preventive measure. Well–baby…	5,790	$80	$439.7K
99393	The provider performs an established well–patient visit for a child who is between the ages of 5 and 11.	4,740	$80	$355.4K
99391	Preventive medicine services are provided to individuals who are not in need of any immediate medical attention, but need to undergo a periodic health checkup as a preventive measure. Well–baby…	4,530	$70	$308K
99394	The provider performs an established well–patient visit for an adolescent who is between the ages of 12 and 17.	3,220	$80	$264.1K
96127	The provider performs a brief emotional/behavioral assessment of the patient using a standardized instrument (such as a recognized form). The provider scores and documents the assessment.	11,190	$20	$201.5K
96110	The provider screens the patient for a developmental disorder using a standardized instrument (such as a recognized form) focused on areas such as developmental milestones and age–appropriate…	6,750	$20	$121.5K
92587	Code 92587 is in the Medicine/Special Otorhinolaryngologic Services Section. It involves special procedures of the ears/nose/throat. This code is for screening purposes with interpretation and…	5,980	$10	$77.7K
92586	N/A	1,790	$40	$71.5K

Showing 1–10 of 58

Medicaid: Competitive Analysis & Benchmarks

How this provider's Medicaid billing volume and revenue compare to other Illinois providers billing the same CPT/HCPCS codes.

Claims Volume vs. Illinois Distribution

Walter Perez — 11 of 25 codes billed far more than typical (above p95)

p5–p95 (all providers)p25–p75MedianThis providerOutlier

Rank Distribution — Illinois

Full comparison — all codes billed, vs. Illinois median

58 rows

CPT/HCPCS Code	Description	Rank	Provider Count	Median Claims	Avg Paid	Average Revenue
92586	N/A	3	10	810	$40	$261.7K
99214	The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a moderate level of medical decision making, and/or the…	252	14,680	300	$50	$48.7K
99392	Preventive medicine services are provided to individuals who are not in need of any immediate medical attention, but need to undergo a periodic health checkup as a preventive measure. Well–baby…	37	1,380	370	$40	$46.2K
99391	Preventive medicine services are provided to individuals who are not in need of any immediate medical attention, but need to undergo a periodic health checkup as a preventive measure. Well–baby…	54	1,270	370	$40	$40.8K
99213	The provider sees an established patient for an office visit or other outpatient visit involving evaluation and management. The visit involves a low level of medical decision making, and/or the…	178	14,190	280	$20	$38.9K
D1206	Topical Fluoride Treatment – Except Varnish; Therapeutic application for moderate to high caries risk patients	363	1,300	360	$20	$35.1K
99393	The provider performs an established well–patient visit for a child who is between the ages of 5 and 11.	37	1,670	160	$40	$26.4K
99394	The provider performs an established well–patient visit for an adolescent who is between the ages of 12 and 17.	50	1,590	110	$40	$21.4K
96110	The provider screens the patient for a developmental disorder using a standardized instrument (such as a recognized form) focused on areas such as developmental milestones and age–appropriate…	43	1,130	390	$10	$15.9K
87426	The lab analyst performs an immunoassay to qualitatively or semiquantitatively evaluate the patient blood specimen for antigens of severe acute respiratory syndrome coronavirus such as SARS–CoV–2,…	505	910	110	$30	$14.4K

Showing 1–10 of 58

Related Providers

Other providers that share a Tax Identification Number (TIN) with Walter Perez, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Access Community Health Network	IL	Federally Qualified Health Center (FQHC)	$0	$122.4M
Cook County	IL	Multi-Specialty Clinic/Center	$0	$85.9M
Cook County	IL	Multi-Specialty Clinic/Center	$0	$20.6M
Cook County	IL	Multi-Specialty Clinic/Center	$0	$14.6M
Access Community Health Network	IL	Federally Qualified Health Center (FQHC)	$0	$12.6M
Access Community Health Network	IL	Federally Qualified Health Center (FQHC)	$0	$11.9M
Access Community Health Network	IL	Federally Qualified Health Center (FQHC)	$0	$11.7M
Access Community Health Network	IL	Federally Qualified Health Center (FQHC)	$0	$10.8M
Eva Wojcik	IL	Cytopathology Physician	$17.3K	$9.7M
Access Community Health Network	IL	Federally Qualified Health Center (FQHC)	$0	$9.6M

Nearby Providers

Other providers in the same ZIP code as Walter Perez, ranked by combined Medicare and Medicaid revenue.

Provider	State	Taxonomy	Medicare Revenue	Medicaid Revenue
Lawndale Christian Health Center	IL	Federally Qualified Health Center (FQHC)	$0	$103.6M
Esperanza Health Centers	IL	Federally Qualified Health Center (FQHC)	$0	$16.5M
Pilsen-little Village Community Mental Health Center, Inc.	IL	Substance Use Disorder Rehabilitation Clinic/Center	$0	$15M
Access Community Health Network	IL	Federally Qualified Health Center (FQHC)	$0	$5M
Saint Anthony Hospital	IL	General Acute Care Hospital	$0	$4.4M
Manish Shukla	IL	Family Medicine Physician	$39.6K	$3.8M
Access Community Health Network	IL	Federally Qualified Health Center (FQHC)	$0	$3.8M
Jaideep Atwal	IL	Dentist	$0	$3.5M
Cook County	IL	Primary Care Clinic/Center	$0	$3.3M
Prasod Ramachandran	IL	Optometrist	$0	$2.9M

Walter Perez — Billing Profile & Reimbursement Data

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Walter Perez — Billing Profile & Reimbursement Data

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Medicaid: Total Revenue Breakdown by CPT/HCPCS Code

Medicaid: Complete Services Breakdown

Medicaid: Competitive Analysis & Benchmarks

Related Providers

Nearby Providers

Frequently Asked Questions

References