Medicare Enrolled
Dr. Constance Marks, M.D.
Optician · Joliet, 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. Marks 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. Marks
Dr. Constance Marks is an optician specialist in Joliet, IL, with 19 years of NPI registration. Based on federal Medicare data, Dr. Marks performed 4,516 Medicare services across 2,566 unique beneficiaries.
Between the years covered by Open Payments, Dr. Marks received a total of $10,044 from 63 pharmaceutical and/or device companies across 361 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in optician. 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. Marks 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 13% volume in IL
$10,044 industry payments
Medicare Practice Summary
Medicare Utilization ↗4,516
Medicare services
Top 13% in IL for optician
2,566
Unique beneficiaries
$45
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~238 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 |
|---|---|---|---|
| Infectious disease DNA/RNA test A laboratory test that uses a specific technique to detect the genetic material of an organism. This method amplifies the target DNA or RNA to identify the presence of the organism. |
975 | $34 | $94 |
| Automated urinalysis An automated laboratory test performed on a urine sample to analyze its chemical and physical properties. The procedure uses machinery to detect various substances and cells within the urine. |
870 | $2 | $17 |
| Bladder ultrasound after voiding An ultrasound scan performed after urination to measure the amount of urine remaining in the bladder. |
591 | $8 | $83 |
| 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. |
555 | $94 | $204 |
| 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. |
157 | $70 | $141 |
| 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. |
123 | $127 | $283 |
| 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. |
120 | $66 | $133 |
| Cystourethroscopy A diagnostic exam of the bladder and urethra using an endoscope to visually inspect the urinary tract. |
98 | $195 | $732 |
| Urine culture, bacterial colony count A laboratory test that measures the number of bacteria growing in a urine sample to help identify infections. |
89 | $8 | $44 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
82 | $8 | $19 |
| Yeast/candida DNA test A laboratory test that uses an amplified probe technique to detect the presence of Candida species, a type of yeast, in a patient sample. |
75 | $34 | $94 |
| Staphylococcus aureus DNA test A laboratory test that uses DNA amplification to detect the presence of Staphylococcus aureus bacteria in a sample. |
75 | $34 | $94 |
| Group B Strep DNA test A laboratory test that uses DNA amplification to detect the presence of Group B Streptococcus bacteria. |
75 | $34 | $94 |
| Chronic care management, first 20 min/month This service covers the first 20 minutes of clinical staff time directed by a healthcare professional each calendar month to manage chronic conditions. |
75 | $51 | $112 |
| 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. |
60 | $109 | $250 |
| Antimicrobial drug evaluation Assessment of the patient's response to antibiotic, antifungal, or antiviral therapy. |
43 | $7 | $28 |
| Electronic assessment of bladder emptying A test that uses electronic monitoring to evaluate how well the bladder empties urine. |
38 | $7 | $268 |
| 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. |
34 | $48 | $291 |
| Urine culture, bacterial identification A laboratory test that grows and identifies bacteria from a urine sample to detect infections. |
33 | $8 | $37 |
| PSA test (prostate cancer screening) | 32 | $18 | $79 |
| 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. |
32 | $145 | $318 |
| 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. |
28 | $143 | $371 |
| Initial hospital admission, low complexity Initial hospital inpatient or observation care for a new patient involving straightforward or low-level medical decision making, with at least 40 minutes total time on the date of the encounter. |
27 | $71 | $191 |
| Insertion of temporary bladder tube | 26 | $33 | $212 |
| Non-needle muscle activity measurement of bladder and bowel openings This procedure measures and records the electrical activity of muscles at the bladder and bowel openings without using needles. |
24 | $29 | $663 |
| Imaging of urinary tract with contrast An imaging test of the urinary tract performed after a contrast agent is injected to enhance visibility of the structures. |
24 | $20 | $355 |
| Complex urodynamic pressure flow study A test that measures the pressure of urine flow in the bladder during voiding to evaluate how well the bladder and urethra are functioning. |
19 | $313 | $1,076 |
| Bladder irrigation and/or instillation This procedure involves flushing the bladder with fluid to clear it or introducing medication directly into the bladder. |
16 | $39 | $364 |
| Ureteral stent insertion via endoscope A flexible tube is inserted into the ureter using an endoscope to keep the passage open and allow urine to flow from the kidney to the bladder. |
16 | $114 | $1,501 |
| Abdominal device insertion with pressure and urine flow study A procedure involving the placement of a device into the abdomen, accompanied by a study to measure pressure and urine flow rate. |
15 | $166 | $564 |
| 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. |
15 | $48 | $111 |
| Fitting and insertion of vaginal support device A procedure to measure, fit, and insert a device designed to support vaginal structures. |
13 | $57 | $142 |
| CT scan of abdomen and pelvis, without contrast A computed tomography scan that creates detailed images of the abdominal and pelvic organs. The procedure is performed without the use of intravenous contrast dye. |
13 | $162 | $888 |
| Bacterial culture, aerobic A laboratory test that grows and identifies bacteria capable of surviving in oxygen. The results help determine the presence of specific aerobic microorganisms. |
13 | $8 | $16 |
| Catheter specimen collection A procedure to collect a specimen using a catheter. This service is available in all places of service. |
13 | $8 | $28 |
| Shock wave crushing of kidney stones A procedure that uses shock waves to break kidney stones into smaller pieces so they can pass more easily from the body. |
11 | $476 | $4,620 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
11 | $61 | $200 |
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.
0.6% high complexity
13.9% medium
85.5% routine
Industry Payment Transparency
Open Payments through 2024 ↗$10,044
Total received (2018-2024)
Avg $1,435/year across 7 years
Top 9% in IL for optician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
63
Companies
361
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
$9,598 (95.6%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$384 (3.8%)
Other
Charitable contributions, space rental, and other categories
$63 (0.6%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$1,658
2023
$1,521
2022
$2,304
2021
$1,192
2020
$606
2019
$1,880
2018
$885
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Boston Scientific Corporation
$221
Olympus America Inc.
$190
Sumitomo Pharma America, Inc.
$176
ABBVIE INC.
$151
COLOPLAST CORP
$141
Teleflex LLC
$103
Myriad Genetic Laboratories, Inc.
$69
Novartis Pharmaceuticals Corporation
$67
Dendreon Pharmaceuticals LLC
$60
Tempus AI, Inc
$55
UROGEN PHARMA, INC.
$55
Bayer Healthcare Pharmaceuticals Inc.
$53
ACCORD HEALTHCARE, INC.
$53
Tolmar, Inc.
$52
PROCEPT BioRobotics Corporation
$44
Janssen Biotech, Inc.
$39
Verity Pharmaceuticals Inc.
$35
Astellas Pharma US Inc
$29
Calyxo, Inc.
$18
Endo USA, Inc.
$17
Antares Pharma, Inc.
$15
Merck Sharp & Dohme LLC
$15
Top 3 companies account for 35.4% of 2024 payments
All-time payments by company (2018-2024) ›
Boston Scientific Corporation
$1,830
Astellas Pharma US Inc
$1,019
Axonics, Inc.
$767
Dendreon Pharmaceuticals LLC
$671
BOSTON SCIENTIFIC CORPORATION
$506
Olympus America Inc.
$484
ABBVIE INC.
$394
Endo Pharmaceuticals Inc.
$333
Janssen Biotech, Inc.
$280
Myriad Genetic Laboratories, Inc.
$262
Verity Pharmaceuticals Inc.
$245
Coloplast Corp
$234
COLOPLAST CORP
$178
Sumitomo Pharma America, Inc.
$176
Bayer HealthCare Pharmaceuticals Inc.
$162
Ferring Pharmaceuticals Inc.
$156
Myovant Sciences Inc.
$155
Teleflex LLC
$125
Rochester Medical Corporation
$116
Novartis Pharmaceuticals Corporation
$112
AMAG Pharmaceuticals, Inc.
$110
Bayer Healthcare Pharmaceuticals Inc.
$108
AstraZeneca Pharmaceuticals LP
$103
Pacira Pharmaceuticals Incorporated
$90
Antares Pharma, Inc.
$76
Blue Earth Diagnostics Limited
$73
PROCEPT BioRobotics Corporation
$68
UROGEN PHARMA, INC.
$67
Merck Sharp & Dohme LLC
$64
Baxter Healthcare
$63
GENZYME CORPORATION
$63
Allergan, Inc.
$63
Tempus AI, Inc
$55
ACCORD HEALTHCARE, INC.
$53
Supernus Pharmaceuticals, Inc.
$53
Tolmar, Inc.
$52
UROVANT SCIENCES INC
$51
Accord Healthcare, Inc.
$43
Progenics Pharmaceuticals, Inc.
$43
AbbVie, Inc.
$40
Caldera Medical, Inc
$39
PFIZER INC.
$36
Amniox Medical, Inc.
$35
Hollister Incorporated
$34
ConvaTec Inc.
$30
ROCHESTER MEDICAL CORPORATION
$28
Allergan Inc.
$27
CARDINAL HEALTH 414 LLC
$25
180 Medical, Inc.
$20
Medtronic, Inc.
$20
Merck Sharp & Dohme Corporation
$19
Retrophin, Inc.
$19
Calyxo, Inc.
$18
Egalet US Inc
$18
Travere Therapeutics, Inc.
$17
Foundation Medicine, Inc.
$17
Endo USA, Inc.
$17
Aytu BioScience, Inc
$15
Telix Pharmaceuticals
$15
UroGen Pharma, Inc.
$14
Janssen Scientific Affairs, LLC
$14
Amgen Inc.
$12
Mission Pharmacal Company
$12
Top 3 companies account for 36.0% of all-time payments
Associated products mentioned in payments ›
(815) Thiola · ADVANTAGE · AMS · AQUABEAM ROBOTIC SYSTEM · AQUABEAM SYSTEM · Altis · Androgel · Axonics · Axonics r-SNM System · Axumin · BOTOX · BRIDION · Bulkamid · CAMCEVI · CVAC ASPIRATION SYSTEM · Coloplast TFL Drive · Desara · ELIGARD · ERLEADA · Erleada · Exparel · FIRMAGON · FOUNDATIONONE · GEMTESA · GENERAL ERECTILE DYSFUNCTION · GENERAL FEMALE SUI · GENERAL MALE SUI · GENERAL FEMALE SUI · GENERAL THERAPIES · GENERAL - BPH · GENERAL - FEMALE SUI · GENERAL - PELVIC ORGAN PROLAPSE · GENTLECATH · GREENLIGHT · General - Erectile Dysfunction · GentleCath · ILLUCCIX · INTERSTIM · INTRAROSA · Infyna Chic · JELMYTO · JEVTANA · KEYTRUDA · LITHOVUE EMPOWER · LUPRON DEPOT · LYNPARZA · LYNX · LithoVue · Lupron Depot · MAGIC3 · MYRBETRIQ · MYRISK · Myrbetriq · NEOX · NOCDURNA · Natesto · Nubeqa · ORGOVYX · PLUVICTO · PROLARIS · PROVENGE · PYLARIFY · Porges Coloplast · Prolia · RETRACE · REZUM · SOLYX · SPEEDICATH · SPRIX · Soltive · Solyx SIS System · SpaceOAR VUE System - 10mL · SpeediCath · Stone Cone · TITAN · TLANDO · TOVIAZ · Titan · Trelstar · URIBEL · UROLIFT · VaPro Plus Pocket · XENFORM · XIAFLEX · XTANDI · XYOSTED · Xofigo · Xtandi · iTIND System · rezum Generator
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 (96%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians. Total industry engagement is in the top 9% for optician in IL.
Geographic Context
Opticians within 10 mi
231
Per 100K population
33.1
County median income
$107,799
Nearest hospital
SAINT JOSEPH MEDICAL CENTER
4.2 mi
4.2 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. Marks is a clinical cardiology specialist, with above-average Medicare volume (top 13% in IL), with low-engagement industry engagement in the top 9% 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. Marks experienced with infectious disease dna/rna test?
Based on Medicare claims data, Dr. Marks performed 975 infectious disease dna/rna test 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. Marks receive payments from pharmaceutical companies?
Yes. Dr. Marks received a total of $10,044 from 63 companies across 361 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. Marks's costs compare to other opticians in Joliet?
Dr. Marks'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. Marks) 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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