Dr. Sara Greenhill, M.D.
What this data tells you about Dr. Greenhill
Dr. Sara Greenhill is a critical care medicine specialist in Elk Grove Village, IL, with 20 years of NPI registration. Based on federal Medicare data, Dr. Greenhill performed 948 Medicare services across 756 unique beneficiaries.
Between the years covered by Open Payments, Dr. Greenhill received a total of $16,249 from 38 pharmaceutical and/or device companies across 318 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in critical care medicine. 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. Greenhill 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 |
|---|---|---|---|
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
165 | $149 | $268 |
| New patient office visit, complex (60-74 min) | 128 | $182 | $384 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
117 | $103 | $194 |
| Critical care, first 30-74 min Emergency medical care for a critically ill or injured patient lasting between 30 and 74 minutes. This service involves direct patient care and medical decision making to stabilize the patient. |
113 | $177 | $595 |
| Bronchial irrigation and suction for cell collection This procedure uses an endoscope to flush and suction the lung airways in order to collect cells for testing. |
69 | $10 | $520 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
51 | $98 | $205 |
| Computer-assisted navigation of lung airways This procedure uses computer technology to guide an endoscope through the airways of the lungs for precise navigation. |
50 | $80 | $3,949 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
50 | $142 | $374 |
| Bronchoscopy with ultrasound and lymph node sampling A procedure using an endoscope and ultrasound to examine the lung airways and collect samples from 1 to 2 lymph nodes. |
49 | $161 | $1,493 |
| Endoscopic needle biopsy of windpipe, airway, or lung A procedure where a needle is inserted through an endoscope to collect tissue samples from the windpipe, airway, or lung. |
45 | $111 | $1,473 |
| Bronchoscopy with ultrasound and growth treatment A procedure using a flexible tube with a camera and ultrasound to examine the lung airways and treat any growths found. |
34 | $55 | $209 |
| Lung biopsy via endoscope, 1 lobe A procedure to remove a small sample of lung tissue from one lobe using an endoscope for examination. |
31 | $65 | $1,100 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
20 | $67 | $145 |
| Bronchoscopy with ultrasound and lymph node sampling A procedure using a scope and ultrasound to examine the airways and collect tissue samples from three or more lymph nodes. |
14 | $197 | $797 |
| Endoscopic destruction of lung airway growth or narrowing A procedure using an endoscope to destroy abnormal growths or relieve narrowing within the lung airways. |
12 | $214 | $804 |
Industry Payment Transparency
Open Payments through 2024 ↗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 (2024)
All-time payments by company (2018-2024) ›
Associated products mentioned in payments ›
The majority of payments (56%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in critical care medicine and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 10% for critical care medicine 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 2024 |
| 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. Greenhill is a clinical cardiology specialist, with moderate Medicare volume, with speaking/promotional industry engagement in the top 10% 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
Is Dr. Greenhill experienced with office visit, established patient, complex (40-54 min)?
Does Dr. Greenhill receive payments from pharmaceutical companies?
How do Dr. Greenhill's costs compare to other critical care medicines in Elk Grove Village?
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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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