Medicare Enrolled
Dr. Mary Angelopoulos, D.O.
Neurology · Northfield, IL
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
Low-engagement
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. Angelopoulos 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 →
Are you Dr. Angelopoulos?
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What this data tells you about Dr. Angelopoulos
Dr. Mary Angelopoulos is a neurology specialist in Northfield, IL, with 19 years of NPI registration. Based on federal Medicare data, Dr. Angelopoulos performed 599 Medicare services across 456 unique beneficiaries.
Between the years covered by Open Payments, Dr. Angelopoulos received a total of $27,157 from 66 pharmaceutical and/or device companies across 1068 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in neurology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Angelopoulos 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.
✓ 19 years in practice
▲ Top 42% volume in IL
$27,157 industry payments
Medicare Practice Summary
Medicare Utilization ↗599
Medicare services
Top 42% in IL for neurology
456
Unique beneficiaries
$109
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~32 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 |
|---|---|---|---|
| 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. |
274 | $95 | $224 |
| New patient office visit, complex (60-74 min) | 118 | $170 | $497 |
| 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. |
81 | $129 | $245 |
| Limited needle EMG of arm or leg muscles A test that measures the electrical activity in specific muscles of the arm or leg using a needle electrode. This limited study evaluates muscle function in a targeted area. |
36 | $49 | $150 |
| Electromyography of arm or leg muscles A test that measures the electrical activity in the muscles of the arm or leg using a needle electrode. It helps evaluate the health of muscles and the nerve cells that control them. |
30 | $80 | $250 |
| Prolonged office E/M service, first 15 minutes This code is used for additional time spent by a physician beyond the maximum required time of a primary office or outpatient evaluation and management service. It is billed in 15-minute increments based on total time spent on the date of the primary service. |
24 | $26 | $50 |
| Nerve conduction studies, 7-8 tests A series of 7 to 8 nerve conduction tests to evaluate how well nerves are sending signals to muscles. |
19 | $144 | $829 |
| 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. |
17 | $73 | $134 |
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 ↗$27,157
Total received (2018-2024)
Avg $3,880/year across 7 years
Top 12% in IL for neurology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
66
Companies
1,068
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.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$24,912 (91.7%)
Consulting
Expert advisory fees, typically reflecting recognized clinical expertise
$2,074 (7.6%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$172 (0.6%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$2,587
2023
$2,373
2022
$3,205
2021
$5,692
2020
$2,743
2019
$5,684
2018
$4,874
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Novartis Pharmaceuticals Corporation
$306
BANNER LIFE SCIENCES, LLC
$293
Celgene Corporation
$292
ABBVIE INC.
$265
Lilly USA, LLC
$243
Neurocrine Biosciences, Inc.
$219
Biogen, Inc.
$203
PFIZER INC.
$178
Genentech USA, Inc.
$155
Sumitomo Pharma America, Inc.
$105
MDD US Operations, LLC
$81
UCB, Inc.
$69
Lundbeck LLC
$49
Acorda Therapeutics, Inc
$40
Vanda Pharmaceuticals Inc.
$25
Alexion Pharmaceuticals, Inc.
$22
Amgen Inc.
$21
LivaNova USA, Inc.
$20
Top 3 companies account for 34.4% of 2024 payments
All-time payments by company (2018-2024) ›
GENZYME CORPORATION
$3,070
Novartis Pharmaceuticals Corporation
$2,064
LivaNova USA, Inc.
$2,060
Biogen, Inc.
$1,815
UCB, Inc.
$1,790
Lilly USA, LLC
$1,443
Neurocrine Biosciences, Inc.
$1,168
Amgen Inc.
$1,092
Teva Pharmaceuticals USA, Inc.
$1,081
Abbott Laboratories
$791
EMD Serono, Inc.
$752
Celgene Corporation
$697
Genentech USA, Inc.
$647
Supernus Pharmaceuticals, Inc.
$608
AbbVie Inc.
$536
PFIZER INC.
$493
BANNER LIFE SCIENCES, LLC
$461
AbbVie, Inc.
$434
ABBVIE INC.
$432
Janssen Pharmaceuticals, Inc
$412
Biohaven Pharmaceuticals, Inc.
$370
Acorda Therapeutics, Inc
$337
IMPEL PHARMACEUTICALS INC.
$250
Sunovion Pharmaceuticals Inc.
$230
Sumitomo Pharma America, Inc.
$230
ARBOR PHARMACEUTICALS, INC.
$226
Adamas Pharmaceuticals, Inc.
$215
MDD US Operations, LLC
$210
SK Life Science, Inc.
$207
Allergan, Inc.
$178
Biohaven Pharmaceutical Holding Company Ltd.
$176
Avanir Pharmaceuticals, Inc.
$172
Upsher-Smith Laboratories LLC
$170
Lundbeck LLC
$168
Inspire Medical Systems, Inc.
$159
Bayer HealthCare Pharmaceuticals Inc.
$140
Alexion Pharmaceuticals, Inc.
$131
Promius Pharma LLC
$120
Eisai Inc.
$119
Banner Life Sciences, LLC
$109
Mallinckrodt LLC
$104
Egalet US Inc
$102
Currax Pharmaceuticals LLC
$94
Zyla Life Sciences
$87
Bausch Health US, LLC
$81
Mallinckrodt Hospital Products Inc.
$76
SANOFI-AVENTIS U.S. LLC
$75
EISAI INC.
$71
US WorldMeds, LLC
$68
Vertical Pharmaceuticals, LLC
$67
Corium, LLC
$65
Assertio Therapeutics, Inc.
$63
Arbor Pharmaceuticals, Inc.
$58
Collegium Pharmaceutical, Inc.
$52
UPSHER-SMITH LABORATORIES LLC
$50
HARMONY BIOSCIENCES LLC
$45
Avion Pharmaceuticals
$45
Alfasigma USA, Inc.
$30
Otsuka America Pharmaceutical, Inc.
$27
Vanda Pharmaceuticals Inc.
$25
E.R. Squibb & Sons, L.L.C.
$23
TG THERAPEUTICS, INC.
$23
Shire North American Group Inc
$20
Amneal Pharmaceuticals LLC
$20
Alnylam Pharmaceuticals Inc.
$15
Mitsubishi Tanabe Pharma America, Inc.
$13
Top 3 companies account for 26.5% of all-time payments
Associated products mentioned in payments ›
ACTHAR · ADUHELM · AIMOVIG · AJOVY · AMPYRA · AMYVID · APOKYN · APTIOM · AUBAGIO · AUSTEDO · AVONEX · Adlarity · Aimovig · BAFIERTAM · BOTOX · BRIUMVI · Betaseron · Briviact · CAMBIA · CONTRAVE · COPAXONE · Cambia · DIVIGEL · DUOPA · Deep Brain Stimulation · Dhivy · Duopa · ELYXYB - celecoxib · EMGALITY · Edarbi · Fycompa · GAMMAGARD · GILENYA · GOCOVRI · Gocovri · Gralise · Horizant · INBRIJA · INFINITY · INGREZZA · Infinity DBS Pulse Generators · Inspire Upper Airway Stimulation System · KESIMPTA · KISUNLA · KYNMOBI · LEMTRADA · LEQEMBI · LYRICA · MAVENCLAD · MAYZENT · MIGRANAL · MYOBLOC · Mavenclad · NUEDEXTA · NURTEC ODT · Natazia · OCREVUS · ONGENTYS · ONPATTRO · ONZETRA XSAIL · ONZETRA Xsail · OSMOLEX ER · OXTELLAR XR · Ocrevus · Ocrevus Zunovo · Ongentys · PLEGRIDY · PONVORY · Ponvory · QUDEXY XR TOPIRAMATE EXTENDED RELEASE CAPSULES · QUDEXY XR Topiramate Extended Release Capsules · QULIPTA · RELEXXII · REXULTI · REYVOW · RYTARY · Radicava · Rebif · SOLIRIS · SPRIX · TECFIDERA · TOSYMRA · TOSYMRA SUMATRIPTAN NASAL SPRAY · TROKENDI XR · TYSABRI · Trudhesa · UBRELVY · ULTOMIRIS · VNS - Sentiva · VNS THERAPY SENTIVA MODEL 1000 GENERATOR · VNS Therapy · VNS Therapy SenTiva Model 1000 Generator · VUMERITY · VYEPTI · Vimpat · Wakix · ZAVZPRET · ZEMBRACE SYMTOUCH · ZEPOSIA · Zembrace
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 →
Most payments (92%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Neurologists within 10 mi
573
Per 100K population
11.0
County median income
$81,797
Nearest hospital
NORTHSHORE UNIVERSITY HEALTHSYSTEM - EVANSTON HOSPITAL
4.6 mi
4.6 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. Angelopoulos is a clinical cardiology specialist, with moderate Medicare volume, with low-engagement industry engagement in the top 12% of IL peers, with 19 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. Angelopoulos experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Angelopoulos performed 274 office visit, established patient (30-39 min) 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. Angelopoulos receive payments from pharmaceutical companies?
Yes. Dr. Angelopoulos received a total of $27,157 from 66 companies across 1,068 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. Angelopoulos's costs compare to other neurologists in Northfield?
Dr. Angelopoulos's average Medicare payment per service is $109. 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. Angelopoulos) 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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