Dr. Ritu Nayar, MD
What this data tells you about Dr. Nayar
Dr. Ritu Nayar is a cytopathology physician in Chicago, IL, with 20 years of NPI registration. Based on federal Medicare data, Dr. Nayar performed 1,636 Medicare services across 1,241 unique beneficiaries.
Between the years covered by Open Payments, Dr. Nayar received a total of $12,766 from 2 pharmaceutical and/or device companies across 21 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in cytopathology physician. The majority of payments are for speaking programs and promotional activities, reflecting participation in industry-sponsored events. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Nayar is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Cell examination with selective cellular enhancement A laboratory test that examines cells from a specimen using a technique to selectively enhance specific cellular features for detailed analysis. |
503 | $21 | $310 |
| Tissue pathology examination, moderate complexity A laboratory test where a pathologist examines tissue samples under a microscope to analyze cellular details. This intermediate complexity procedure involves specialized techniques to identify abnormalities in the tissue. |
169 | $30 | $204 |
| Intraoperative pathology exam, additional site A microscopic examination of tissue samples performed during surgery to check for disease. This code applies to each additional site examined beyond the first. |
157 | $30 | $188 |
| Tissue staining for diagnosis, additional An extra laboratory procedure to apply special stains to tissue slides for detailed examination. |
143 | $23 | $116 |
| Cell examination of specimen, concentration technique A laboratory test that uses a concentration technique to examine cells from a specimen. |
131 | $18 | $151 |
| Fine needle aspirate evaluation and report A pathologist examines cells collected via a fine needle aspiration and provides a written interpretation and report of the findings. |
117 | $56 | $375 |
| Intraoperative pathology examination of specimen A pathology test performed during surgery to examine a tissue sample from the initial site. The results help guide the surgeon's immediate decisions. |
97 | $50 | $328 |
| Fine needle aspirate evaluation A laboratory examination of cells collected via fine needle aspiration to assess for abnormalities. |
80 | $29 | $163 |
| Additional Pap test evaluation episode An additional immediate evaluation of a fine needle aspirate sample during a Pap test procedure. |
65 | $22 | $121 |
| Tissue staining for diagnosis, initial A laboratory test where special stains are applied to tissue slides to help examine the cells and identify specific characteristics. |
53 | $28 | $356 |
| Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, requiring interpretation by physician | 42 | $24 | $125 |
| Manual microscopic genetic analysis of tumor A laboratory test that uses a microscope to manually examine tumor tissue for genetic changes. |
29 | $34 | $303 |
| Pathology examination of specimen during surgery A pathologist examines tissue removed during surgery to determine its nature. This analysis helps guide immediate surgical decisions. |
21 | $30 | $181 |
| Surgical pathology consultation and report, comprehensive A specialist reviews tissue samples to provide a detailed diagnosis and report. |
16 | $111 | $390 |
| Surgical pathology consultation on referred slides A pathologist reviews and reports on tissue slides that were prepared at another facility. This service provides a second opinion or expert analysis of the existing samples. |
13 | $70 | $250 |
Industry Payment Transparency
Open Payments through 2023 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2023)
All-time payments by company (2018-2023) ›
Associated products mentioned in payments ›
The majority of payments (66%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in cytopathology physician and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 6% for cytopathology physician in IL.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2023 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Nayar is a clinical cardiology specialist, with moderate Medicare volume, with speaking/promotional industry engagement in the top 6% of IL peers, with 20 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
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All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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