Medicare Enrolled
Dr. Ammar Bayrakdar, MD
Endocrinology · Evergreen Park, IL
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Speaking/Promotional
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Bayrakdar from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
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What this data tells you about Dr. Bayrakdar
Dr. Ammar Bayrakdar is an endocrinology specialist in Evergreen Park, IL, with 20 years of NPI registration. Based on federal Medicare data, Dr. Bayrakdar performed 4,282 Medicare services across 1,714 unique beneficiaries.
Between the years covered by Open Payments, Dr. Bayrakdar received a total of $628,279 from 76 pharmaceutical and/or device companies across 1339 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in endocrinology. 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. Bayrakdar 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.
✓ 20 years in practice
▲ Top 12% volume in IL
$628,279 industry payments
Medicare Practice Summary
Medicare Utilization ↗4,282
Medicare services
Top 12% in IL for endocrinology
1,714
Unique beneficiaries
$45
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~214 Medicare services per year of practice
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 |
|---|---|---|---|
| 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. |
802 | $66 | $114 |
| Blood glucose test using hand-held instrument A test that measures the level of sugar in the blood using a portable device. The result helps monitor blood glucose levels. |
706 | $3 | $25 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
635 | $66 | $170 |
| Hemoglobin a1c level, by device for home use | 611 | $9 | $25 |
| Continuous glucose monitoring with interpretation This procedure involves monitoring blood sugar levels in tissue fluid using a sensor placed under the skin, along with the interpretation and reporting of the results. |
461 | $27 | $250 |
| 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. |
323 | $101 | $220 |
| Continuous glucose monitoring, tissue fluid This procedure involves continuous monitoring of blood sugar levels in tissue fluid using a sensor placed under the skin. |
198 | $50 | $200 |
| Initial hospital admission, moderate complexity Initial hospital inpatient or observation care for a new patient involving moderate-level medical decision making, with at least 55 minutes total time on the date of the encounter. |
168 | $109 | $220 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
104 | $11 | $45 |
| Zoledronic acid injection, 1 mg An injection of zoledronic acid administered at a dose of 1 mg. |
80 | $7 | $100 |
| Testosterone injection An injection of testosterone cypionate, a form of testosterone hormone. The dose is measured in milligrams. |
68 | $0 | $10 |
| Continuous glucose monitoring, sensor under skin This procedure involves continuous monitoring of blood sugar levels in tissue fluid using a sensor placed under the skin with provider-supplied equipment. |
46 | $119 | $338 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
41 | $129 | $263 |
| Office visit, established patient (10-19 min) An office visit for an existing patient lasting 10 to 19 minutes. The visit involves medical evaluation and management of the patient's condition. |
28 | $47 | $110 |
| Ultrasound of head and neck soft tissue This procedure uses sound waves to create images of the soft tissues in the head and neck area. It allows for the visualization of structures beneath the skin without using radiation. |
11 | $86 | $250 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
Industry Payment Transparency
Open Payments through 2024 ↗$628,279
Total received (2018-2024)
Avg $89,754/year across 7 years
Top 0% in IL for endocrinology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
76
Companies
1,339
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$602,332 (95.9%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$14,430 (2.3%)
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$11,517 (1.8%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$31,943
2023
$26,798
2022
$73,275
2021
$91,321
2020
$61,385
2019
$156,355
2018
$187,202
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Novo Nordisk Inc
$18,367
Lilly USA, LLC
$5,974
Boehringer Ingelheim Pharmaceuticals, Inc.
$3,353
Abbott Laboratories
$2,081
Insulet Corporation
$324
Xeris Pharmaceuticals, Inc.
$290
AstraZeneca Pharmaceuticals LP
$214
Mannkind Corporation
$206
Corcept Therapeutics
$197
Novartis Pharmaceuticals Corporation
$118
Dexcom, Inc.
$116
Amgen Inc.
$89
Radius Health, Inc.
$82
Ultragenyx Pharmaceutical Inc.
$65
Ascensia Diabetes Care Us Inc.
$65
SANOFI-AVENTIS U.S. LLC
$64
ABBVIE INC.
$59
BETA BIONICS, INC.
$45
Astellas Pharma US Inc
$37
Exact Sciences Corporation
$34
Neurocrine Biosciences, Inc.
$33
Madrigal Pharmaceuticals
$25
Lundbeck LLC
$23
Antares Pharma, Inc.
$16
Bayer Healthcare Pharmaceuticals Inc.
$15
CeQur Corporation
$14
Philips North America LLC
$14
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$14
TheracosBio, LLC
$11
Top 3 companies account for 86.7% of 2024 payments
All-time payments by company (2018-2024) ›
Novo Nordisk Inc
$356,411
Merck Sharp & Dohme Corporation
$119,343
Boehringer Ingelheim Pharmaceuticals, Inc.
$52,112
Lilly USA, LLC
$38,829
Janssen Pharmaceuticals, Inc
$32,019
AstraZeneca Pharmaceuticals LP
$6,593
Bayer HealthCare Pharmaceuticals Inc.
$5,734
SANOFI-AVENTIS U.S. LLC
$5,185
Abbott Laboratories
$2,482
Insulet Corporation
$962
Medtronic MiniMed, Inc.
$902
Dexcom, Inc.
$689
Becton, Dickinson and Company
$611
Corcept Therapeutics
$520
Xeris Pharmaceuticals, Inc.
$469
Mannkind Corporation
$452
MannKind Corporation
$423
PREVENTRIC DIAGNOSTICS, INC.
$395
Novartis Pharmaceuticals Corporation
$309
Intuity Medical Inc
$306
Amarin Pharma Inc.
$260
Amgen Inc.
$253
Horizon Therapeutics plc
$217
Bayer Healthcare Pharmaceuticals Inc.
$196
Tandem Diabetes Care, Inc.
$138
Shire North American Group Inc
$133
Radius Health, Inc.
$130
Ultragenyx Pharmaceutical Inc.
$126
Astellas Pharma US Inc
$113
IBSA Pharma Inc.
$113
PFIZER INC.
$106
Nestle HealthCare Nutrition Inc.
$106
CeQur Corporation
$100
AbbVie Inc.
$87
Senseonics, Incorporated
$86
ABBVIE INC.
$81
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$74
Amryt Pharma Holdings Ltd
$74
Allergan, Inc.
$70
Supernus Pharmaceuticals, Inc.
$68
Ascensia Diabetes Care Us Inc.
$65
Clarus Therapeutics Inc.
$57
Exact Sciences Corporation
$48
Biohaven Pharmaceutical Holding Company Ltd.
$47
BETA BIONICS, INC.
$45
Lundbeck LLC
$45
Antares Pharma, Inc.
$44
Genentech USA, Inc.
$43
Teva Pharmaceuticals USA, Inc.
$40
Neurocrine Biosciences, Inc.
$33
GlaxoSmithKline, LLC.
$31
Amneal Pharmaceuticals LLC
$30
Boston Scientific Corporation
$29
Edwards Lifesciences Corporation
$28
Medline Industries, Inc.
$27
Otsuka America Pharmaceutical, Inc.
$26
Medtronic, Inc.
$26
Hikma Pharmaceuticals USA
$26
Madrigal Pharmaceuticals
$25
Ipsen Biopharmaceuticals, Inc
$24
DEXCOM, INC.
$23
Biohaven Pharmaceuticals, Inc.
$22
Sunovion Pharmaceuticals Inc.
$21
Amphastar Pharmaceuticals, Inc.
$21
Roche Diabetes Care, Inc.
$19
Paratek Pharmaceuticals, Inc.
$18
Takeda Pharmaceuticals U.S.A., Inc.
$17
IRONWOOD PHARMACEUTICALS, INC
$16
Philips Electronics North America Corporation
$16
Valeritas, Inc.
$14
Philips North America LLC
$14
Eyevance Pharmaceuticals LLC
$13
Allergan Inc.
$13
Nalpropion Pharmaceuticals LLC
$12
Ironwood Pharmaceuticals, Inc
$12
TheracosBio, LLC
$11
Top 3 companies account for 84.0% of all-time payments
Associated products mentioned in payments ›
(CK7) Extended Holter · AFREZZA · AIRSUPRA · APTIOM · AUSTEDO · Accu-Chek Guide Me · AirDuo Digihaler · BAQSIMI · BD NANO · BD Nano · BPRO BT AMBULATORY BLOOD PRESSURE MONITORING SYSTEM · BREO · BREZTRI · Brenzavvy · CONTRAVE · CYCLOSET · CeQur Simplicity · Cologuard Collection Kit · Crysvita · Cryvista · DCA 2000+ Analyzer by Siemens Healthcare · DEXCOM CGM · DEXCOM G6 CGM SYSTEM · DEXCOM G6 TRANSMITTER · Dexcom CGM · Dexcom G6 Transmitter · EMGALITY · ENTRESTO · ETERNA · EVENITY · EVERSENSE E3 SENSOR KIT - RETAIL · Edwards SAPIEN 3 Ultra Transcatheter Heart Valve · Eversense · FARXIGA · FREESTYLE LIBRE 2 · FREESTYLE LIBRE 3 · FreeStyle Libre · FreeStyle Libre blood glucose Flash Monitoring System · GVOKE HYPOPEN · GVOKE PFS · HUMULIN · INPEN SMART INSULIN DELIVERY SYSTEM · INVOKANA · JANUVIA · JARDIANCE · JATENZO · KRYSTEXXA · Kerendia · Korlym · LEQVIO · LICART · LYRICA · LYUMJEV · Linzess · MOUNJARO · MYCAPSSA · Minimed 670G System · Mitigare · Myrbetriq · NATPARA · NURTEC ODT · NUZYRA · OTREXUP · Omnipod · Otezla · Ozempic · PREVNAR 20 · Pogo Automatic Blood Glucose Monitoring System · Prolia · QTERN · RECORLEV · RESMETIROM · REXULTI · RYBELSUS · Repatha · Respiratoriy Care Undiv · Rybelsus · SOLIQUA · SOLIQUA 100/33 · SOMATULINE DEPOT · SOTAGLIFLOZIN · STEGLATRO · SYNTHROID · Saxenda · Somatuline Depot · TEPEZZA · TLANDO · TOUJEO · TRULICITY · TZIELD · Tirosint · Tobradex ST · Tresiba · Tymlos · UBRELVY · UNITHROID · V-GO · VIBERZI · VRAYLAR · Vascepa · Veozah · Victoza · WATCHMAN Access System · Wegovy · XARELTO · XIFAXAN · XYOSTED · Xofluza · Xultophy 100/3.6 · ZENPEP · iLet Bionic Pancreas · t:slim X2 Insulin Pump with Control-IQ
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
The majority of payments (96%) are for speaking programs and promotional activities, which reflect participation in industry-sponsored educational or marketing events. This is common in endocrinology and does not inherently indicate bias, but patients may wish to be aware. Total industry engagement is in the top 0% for endocrinology in IL.
Geographic Context
Endocrinologists within 10 mi
204
Per 100K population
3.9
County median income
$81,797
Nearest hospital
OSF LITTLE COMPANY OF MARY MEDICAL CENTER
0.0 mi
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. Bayrakdar is a clinical cardiology specialist, with above-average Medicare volume (top 12% in IL), with speaking/promotional industry engagement in the top 0% 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. Bayrakdar experienced with hospital follow-up visit, moderate complexity?
Based on Medicare claims data, Dr. Bayrakdar performed 802 hospital follow-up visit, moderate complexity services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Bayrakdar receive payments from pharmaceutical companies?
Yes. Dr. Bayrakdar received a total of $628,279 from 76 companies across 1,339 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Bayrakdar's costs compare to other endocrinologists in Evergreen Park?
Dr. Bayrakdar's average Medicare payment per service is $45. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Bayrakdar) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
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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