NPI registry status
Active
2026 NPPES data Urology Physician NPI 1457325433 MD
Verify on CMS → Marcus Quek, MD
Urology Physician in Maywood, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 13,367 in Urology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
760
Medicare Part D claims · 222 beneficiaries · Urology Physician avg: 1K
Industry payments
$249.33
3 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Marcus Quek, MD filed 760 Medicare Part D claims in 2023 as a Urology Physician in Maywood, Illinois.
- 760
- Part D claims, 2023
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Marcus Quek, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
760 Top 29% higher than 71% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Marcus Quek, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Marcus Quek, MD?
Quality data not reportedPrimary specialty
Urology Physician
Medicare Part D claims
760 41% vs specialty avg
Specialty distribution in Illinois
How Urology Physician compares to other specialties among Illinois providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Urology Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Marcus Quek, MD appears in the CMS NPPES registry as a Urology Physician provider holding MD credentials at 2160 S FIRST AVE, Maywood, IL, 60153, with a listed phone of (708) 216-5102. NPI 1457325433 was issued on 02/15/2006.
Medicare Part D records for calendar year 2023 show 760 prescription claims written by this provider, covering 222 Medicare beneficiaries and totaling roughly $80K in drug spend, with an opioid prescribing rate of 2.5%.
Urology Physician is a mid-sized specialty nationwide, with 13,367 enrolled providers across 54 states and an average of 1,280 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1457325433 |
|---|---|
| Specialty | Urology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 02/15/2006 |
Hospital and facility affiliations
Facilities where Marcus Quek, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Loyola University Medical Center
★★☆☆☆ 2/5
Maywood, IL
Acute Care Hospitals
CMS CCN: 140276
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Marcus Quek, MD. Source: openpaymentsdata.cms.gov.
Total received
$249
Largest payer
Baxter Healthcare
Most common payment type
Travel and Lodging
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
License & disciplinary context - Illinois IDFPR 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 - they are NOT specific to Marcus Quek, MD. To verify Marcus Quek, MD's current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
760
Total Claims
$80K
Total Drug Cost
222
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,588
- Total Day Supply
- 43,457
- Generic Drug Cost
- $27K
- Opioid Claims
- 19 (2.5% rate)
- Antibiotic Claims
- 142
Patient Demographics
- Average Patient Age
- 76.2 years
- Avg HCC Risk Score
- 1.72
- Gender Split
- 16% female / 84% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Marcus Quek, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Tamsulosin Hcl
Tamsulosin Hcl
172 claims
- Finasteride
Finasteride
133 claims
- Cephalexin 48
Cephalexin
48 claims
- Myrbetriq 45
Myrbetriq
45 claims
- Ciprofloxacin Hcl 28
Ciprofloxacin Hcl
28 claims
- Methenamine Hippur… 26
Methenamine Hippurate
26 claims
- Nitrofurantoin Mon… 23
Nitrofurantoin Mono-Macro
23 claims
- Oxybutynin Chlorid… 22
Oxybutynin Chloride Er
22 claims
| Drug | Claims |
|---|---|
| Tamsulosin Hcl | 172 |
| Finasteride | 133 |
| Cephalexin | 48 |
| Myrbetriq Mirabegron | 45 |
| Ciprofloxacin Hcl | 28 |
| Methenamine Hippurate | 26 |
| Nitrofurantoin Mono-Macro Nitrofurantoin Monohyd/M-Cryst | 23 |
| Oxybutynin Chloride Er Oxybutynin Chloride | 22 |
| Oxybutynin Chloride | 19 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 19 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Urology Physician Overview
How Marcus Quek, MD fits within the Urology Physician landscape nationally.
13,367
Urology Physician Providers in US
54
States with Urology Physician
1,280
Avg Claims per Provider
Marcus Quek, MD's 760 claims are below the specialty average of 1,280.
Nearby Urology Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Quek.
Dr. Michael Abern
M.D.
Chicago, IL
Dr. Omer Acar
MD
Chicago, IL
Dr. Melanie Adamsky
M.D.
Melrose Park, IL
Piyush Agarwal
Chicago, IL
Dr. Arif Agha
MD
Oak Brook, IL
Compare Urology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Illinois medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Urology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
Telehealth Guide
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Frequently Asked Questions
What is Marcus Quek, MD's specialty? ▼
Marcus Quek, MD specializes in Urology Physician and practices in Maywood, Illinois. Credentials: MD.
How much does Marcus Quek, MD prescribe under Medicare Part D? ▼
In 2023, Marcus Quek, MD wrote 760 Medicare Part D claims totaling $80K in drug costs for 222 beneficiaries.
Where is Marcus Quek, MD located? ▼
Marcus Quek, MD is located at 2160 S FIRST AVE, Maywood, IL, 60153. Phone: (708) 216-5102.
What is Marcus Quek, MD's NPI number? ▼
Marcus Quek, MD's National Provider Identifier (NPI) is 1457325433, issued on 02/15/2006.
Does Marcus Quek, MD prescribe opioids? ▼
Yes, Marcus Quek, MD had 19 opioid claims in 2023 with an opioid prescribing rate of 2.5%.
How many Urology Physician providers are there in the US? ▼
There are 13,367 Urology Physician providers across 54 states in the US. The average Urology Physician provider writes 1,280 Medicare Part D claims per year.
What drugs does Marcus Quek, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Marcus Quek, MD's most frequently prescribed drugs include Tamsulosin Hcl, Finasteride, Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Marcus Quek, MD accept Medicare? ▼
Marcus Quek, MD appears in CMS Medicare data with 760 Part D claims and 222 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marcus Quek, MD's credentials? ▼
Marcus Quek, MD's NPI is 1457325433 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.