Medicare Enrolled
Dr. Nidal Shawahin, MD
Internal Medicine · Belleville, IL
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
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. Shawahin 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. Shawahin
Dr. Nidal Shawahin is an internal medicine specialist in Belleville, IL, with 21 years of NPI registration. Based on federal Medicare data, Dr. Shawahin performed 2,054 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Shawahin received a total of $24,900 from 62 pharmaceutical and/or device companies across 1673 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Shawahin 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.
✓ 21 years of NPI registration
▲ Top 16% volume in IL
$24,900 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗2,054
Medicare services
Top 16% in IL for internal medicine
Not available
Unique patients (not deduplicated)
$75
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
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 (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. |
856 | $78 | $219 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
215 | $126 | $236 |
| 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. |
204 | $60 | $150 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
152 | $30 | $49 |
| Flu vaccine, high-dose High-dose seasonal influenza vaccine for adults aged 65 and older. Contains four times the antigen of standard-dose flu vaccines (60 mcg per strain), split-virus formulation, preservative-free, single-dose syringe. |
137 | $72 | $88 |
| Steroid injection (triamcinolone) A 10 mg injection of triamcinolone acetonide, a corticosteroid medication. This code specifies the drug and dosage administered. |
89 | $1 | $6 |
| 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. |
73 | $10 | $58 |
| Pneumococcal conjugate vaccine (PCV20) An intramuscular injection of the 20-valent pneumococcal conjugate vaccine. It is used to protect against diseases caused by Streptococcus pneumoniae bacteria. |
69 | $281 | $345 |
| Pneumonia vaccine administration This procedure involves the injection of a vaccine to protect against pneumococcal disease. It is administered by a healthcare provider. |
69 | $30 | $49 |
| Vitamin B-12 injection An injection of vitamin B-12 (cyanocobalamin) with a dose of up to 1000 mcg. |
53 | $1 | $13 |
| Transitional care management services, moderate complexity Services provided to coordinate care during the transition from an inpatient or other facility setting back to the community. This includes follow-up and management of a health problem of at least moderate complexity. |
50 | $155 | $338 |
| Urinalysis, manual A manual laboratory examination of a urine sample to check for various substances and cells. |
27 | $3 | $13 |
| Joint injection, major joint Removal of fluid from a large joint and/or injection of medication into the joint space. |
16 | $55 | $265 |
| Quadrivalent influenza vaccine, preservative-free A flu shot containing four strains of the influenza virus, formulated without preservatives, administered in a 0.5 ml dose. |
16 | $22 | $36 |
| Respiratory virus detection test A laboratory test using immunoassay techniques to detect the presence of severe acute respiratory syndrome coronavirus and influenza viruses. |
15 | $30 | $146 |
| 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. |
13 | $34 | $90 |
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. These counts do not measure clinical quality or years of experience.
Industry Payment Transparency
Open Payments through 2024 ↗$24,900
Total received (2018-2024)
Avg $3,557/year across 7 years
Top 3% in IL for internal medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
62
Companies
1,673
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$3,376
2023
$3,437
2022
$3,204
2021
$3,911
2020
$3,249
2019
$3,487
2018
$4,237
Payments by company (2024)
AstraZeneca Pharmaceuticals LP
$983
ABBVIE INC.
$337
Lilly USA, LLC
$303
Novo Nordisk Inc
$203
Teva Pharmaceuticals USA, Inc.
$196
PFIZER INC.
$196
Janssen Pharmaceuticals, Inc
$181
Bayer Healthcare Pharmaceuticals Inc.
$168
Merck Sharp & Dohme LLC
$147
GlaxoSmithKline, LLC.
$145
Axsome Therapeutics, Inc.
$90
Amgen Inc.
$63
Sumitomo Pharma America, Inc.
$63
Boehringer Ingelheim Pharmaceuticals, Inc.
$55
Novartis Pharmaceuticals Corporation
$55
Dexcom, Inc.
$49
Azurity Pharmaceuticals, Inc.
$35
SANOFI-AVENTIS U.S. LLC
$27
Esperion Therapeutics, Inc.
$20
Astellas Pharma US Inc
$17
IRONWOOD PHARMACEUTICALS, INC
$15
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$14
Medicure Pharma Inc.
$13
Top 3 companies account for 48.1% of 2024 payments
All-time payments by company (2018-2024) ›
AstraZeneca Pharmaceuticals LP
$4,123
PFIZER INC.
$2,225
Janssen Pharmaceuticals, Inc
$2,201
Novo Nordisk Inc
$1,930
Lilly USA, LLC
$1,640
GlaxoSmithKline, LLC.
$1,400
Boehringer Ingelheim Pharmaceuticals, Inc.
$1,178
AbbVie Inc.
$894
SANOFI-AVENTIS U.S. LLC
$792
Amgen Inc.
$636
ABBVIE INC.
$624
Astellas Pharma US Inc
$619
Novartis Pharmaceuticals Corporation
$521
Merck Sharp & Dohme Corporation
$484
Amarin Pharma Inc.
$470
Teva Pharmaceuticals USA, Inc.
$460
Merck Sharp & Dohme LLC
$451
Bayer Healthcare Pharmaceuticals Inc.
$362
Allergan Inc.
$361
Allergan, Inc.
$328
Takeda Pharmaceuticals U.S.A., Inc.
$301
Esperion Therapeutics, Inc.
$269
Biohaven Pharmaceuticals, Inc.
$231
Bayer HealthCare Pharmaceuticals Inc.
$213
Sunovion Pharmaceuticals Inc.
$194
Biohaven Pharmaceutical Holding Company Ltd.
$167
Mylan Specialty L.P.
$163
Sumitomo Pharma America, Inc.
$131
Corcept Therapeutics
$114
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$103
Axsome Therapeutics, Inc.
$90
Regeneron Healthcare Solutions, Inc.
$88
Kowa Pharmaceuticals America, Inc.
$80
E.R. Squibb & Sons, L.L.C.
$78
Abbott Laboratories
$78
Dexcom, Inc.
$74
Antares Pharma, Inc.
$65
ITI, Inc.
$60
Sanofi Pasteur Inc.
$59
Eisai Inc.
$58
AbbVie, Inc.
$55
Otsuka America Pharmaceutical, Inc.
$44
Endo Pharmaceuticals Inc.
$43
Gilead Sciences, Inc.
$41
SANOFI PASTEUR INC.
$38
DEXCOM, INC.
$35
Azurity Pharmaceuticals, Inc.
$35
Synergy Pharmaceuticals Inc
$31
Edwards Lifesciences Corporation
$29
Purdue Pharma L.P.
$27
OptiNose US, Inc.
$23
Global Blood Therapeutics, Inc.
$22
NESTLE HEALTHCARE NUTRITION INC.
$20
Genentech USA, Inc.
$20
Daiichi Sankyo Inc.
$19
Exact Sciences Corporation
$19
Nestle HealthCare Nutrition Inc.
$16
IRONWOOD PHARMACEUTICALS, INC
$15
Shire North American Group Inc
$15
Xeris Pharmaceuticals, Inc.
$14
Neurocrine Biosciences, Inc.
$13
Medicure Pharma Inc.
$13
Top 3 companies account for 34.3% of all-time payments
Associated products mentioned in payments ›
AIRSUPRA · AJOVY · ANORO · ANORO ELLIPTA · AREXVY · AUSTEDO · Aimovig · Amitiza · Austedo XR · Auvelity · BELSOMRA · BREO · BREZTRI · BREZTRI AEROSPHERE · BRILINTA · BYSTOLIC · CAPLYTA · CHANTIX · COLOGUARD · COLOGUARD DNA CAPTURE REAGENTS · COMIRNATY · CREON · Cologuard Collection Kit · Creon · DEXCOM G6 TRANSMITTER · DIABETES - DISEASE · Dayvigo · Dexcom G6 Transmitter · ELIQUIS · EMGALITY · ENTRESTO · Edwards SAPIEN 3 Ultra Transcatheter Heart Valve · FARXIGA · FASENRA · FIASP · FLUBLOK QUADRIVALENT · FLUZONE HIGH-DOSE · FreeStyle Libre 2 · FreeStyle Lite system · GEMTESA · GVOKE PFS · INGREZZA · INJECTAFER · INVOKAMET · INVOKANA · JANUVIA · JARDIANCE · JYNARQUE · Kerendia · Korlym · LEQVIO · LINZESS · LONHALA MAGNAIR · LYRICA · Linzess · Livalo · MOUNJARO · MYRBETRIQ · Myrbetriq · NASCOBAL · NEXLETOL · NEXLIZET · NURTEC ODT · OFEV · OTREXUP · OXBRYTA · Otezla · Otrexup · Ozempic · PAXLOVID · PRADAXA · PRALUENT · PRALUENT ALIROCUMAB INJECTION · PREMARIN · PREVNAR 13 · Perforomist · Prolia · QULIPTA · REYVOW · RYBELSUS · Repatha · Rybelsus · SHINGRIX · SOLIQUA · SOLIQUA 100/33 · SPIRIVA RESPIMAT · SPRAVATO · STEGLATRO · STIOLTO RESPIMAT · SYMBICORT · SYMPROIC · SYNTHROID · Saxenda · Synthroid · TOUJEO · TRADJENTA · TRELEGY ELLIPTA · TRINTELLIX · TRULICITY · Tresiba · Trintellix · Trulance · UBRELVY · UTIBRON NEOHALER · VERQUVO · VESICARE · VIBERZI · VRAYLAR · VYVANSE · Vascepa · Veozah · Victoza · Wegovy · XARELTO · XIFAXAN · Xhance · Xultophy 100/3.6 · YUPELRI · Yupelri · ZENPEP · Zypitamag
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. 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 →
Geographic Context
Internal medicine physicians in nearby ZIP areas
1,376
County median income
$70,178
Nearest hospital to ZIP centroid (approximate)
MEMORIAL HOSPITAL
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | 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. Shawahin is a clinical cardiology specialist, with above-average Medicare volume (top 16% in IL), with 21 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. Shawahin experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Shawahin performed 856 office visit, established patient (30-39 min) services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Shawahin receive payments from pharmaceutical companies?
Yes. Dr. Shawahin received a total of $24,900 from 62 companies across 1,673 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. 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. Shawahin's costs compare to other internal medicine physicians in Belleville?
Dr. Shawahin's average Medicare payment per service is $75. 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. Shawahin) 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 the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. 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?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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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