NPI registry status
Active
2026 NPPES data Emergency Registered Nurse NPI 1659837367 APRN, FNP-C
Verify on CMS → Martel Warden, APRN, FNP-C
Emergency Registered Nurse in Oak Lawn, 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 4,350 in Emergency Registered Nurse, 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
813
Medicare Part D claims · 429 beneficiaries · Emergency Registered Nurse avg: 710
Generic prescribing
90%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$448.15
21 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Martel Warden, APRN, FNP-C filed 813 Medicare Part D claims in 2023 as a Emergency Registered Nurse in Oak Lawn, Illinois, prescribing 90% generic.
- 813
- Part D claims, 2023
- 90%
- generic prescribing
- $448.15
- industry payments (Sunshine Act)
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.
Martel Warden, APRN, FNP-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
813 Top 27% higher than 73% 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
What does the federal data show about Martel Warden, APRN, FNP-C?
Quality data not reportedPrimary specialty
Emergency Registered Nurse
Medicare Part D claims
813 15% vs specialty avg
Specialty distribution in Illinois
How Emergency Registered Nurse 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 Emergency Registered Nurse. 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).
Martel Warden, APRN, FNP-C appears in the CMS NPPES registry as an Emergency Registered Nurse provider holding APRN, FNP-C credentials at 9555 S 52ND AVE, Oak Lawn, IL, 60453, with a listed phone of (708) 634-0950. NPI 1659837367 was issued on 02/18/2019.
Medicare Part D records for calendar year 2023 show 813 prescription claims written by this provider, covering 429 Medicare beneficiaries and totaling roughly $21K in drug spend, split 8% brand-name and 90% generic by claim count, with an opioid prescribing rate of 10.9%.
Emergency Registered Nurse is a narrow specialty nationwide, with 4,350 enrolled providers across 54 states and an average of 710 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 | 1659837367 |
|---|---|
| Specialty | Emergency Registered Nurse |
| Credentials | APRN, FNP-C |
| Gender | Male |
| NPI Issued | 02/18/2019 |
Hospital and facility affiliations
Facilities where Martel Warden, APRN, FNP-C 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.
Advocate Health And Hospitals Corporation
South Holland, IL
Christian Community Health Center
Chicago, IL
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 Martel Warden, APRN, FNP-C. Source: openpaymentsdata.cms.gov.
Total received
$448
Largest payer
Gilead Sciences, Inc.
Most common payment type
Food and Beverage
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 Martel Warden, APRN, FNP-C. To verify Martel Warden, APRN, FNP-C'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.
Brand vs generic prescribing mix · Generic-heavy
Martel Warden, APRN, FNP-C - brand share 8.0%
Emergency Registered Nurse average
8% brand-name claims vs 90% generic, on 813 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
813
Total Claims
$21K
Total Drug Cost
429
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 962
- Total Day Supply
- 14,926
- Brand vs Generic
- 8% brand / 90% generic
- Brand Drug Cost
- $11K
- Generic Drug Cost
- $9K
- Opioid Claims
- 89 (10.9% rate)
- Antibiotic Claims
- 193
Patient Demographics
- Average Patient Age
- 71.5 years
- Avg HCC Risk Score
- 1.29
- Gender Split
- 67% female / 33% male
- Age Distribution
- <65: 63, 65-74: 206, 75-84: 126, 85+: 34
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Martel Warden, APRN, FNP-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Methylprednisolone
Methylprednisolone
61 claims
- Acetaminophen-Code…
Acetaminophen-Codeine
55 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
53 claims
- Cephalexin
Cephalexin
47 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
32 claims
- Diclofenac Sodium
Diclofenac Sodium
32 claims
- Fluticasone Propio…
Fluticasone Propionate
31 claims
- Ipratropium Bromide
Ipratropium Bromide
31 claims
| Drug | Claims |
|---|---|
| Methylprednisolone | 61 |
| Acetaminophen-Codeine Acetaminophen With Codeine | 55 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 53 |
| Cephalexin | 47 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 32 |
| Diclofenac Sodium | 32 |
| Fluticasone Propionate | 31 |
| Ipratropium Bromide | 31 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 24 |
| Azithromycin | 23 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Registered Nurse Overview
How Martel Warden, APRN, FNP-C fits within the Emergency Registered Nurse landscape nationally.
4,350
Emergency Registered Nurse Providers in US
54
States with Emergency Registered Nurse
710
Avg Claims per Provider
Martel Warden, APRN, FNP-C's 813 claims are above the specialty average of 710.
Nearby Emergency Registered Nurse Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Warden.
Dr. Tanja Acamovic
RN
Chicago, IL
Jenny Ahn
Chicago, IL
Dr. Skylar Argento
RN
Chicago, IL
Dr. Nora Ayala
RN
Chicago, IL
Jazmin Baca
Yorkville, IL
Compare Emergency Registered Nurse 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 Emergency Registered Nurse 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 Martel Warden, APRN, FNP-C's specialty? ▼
Martel Warden, APRN, FNP-C specializes in Emergency Registered Nurse and practices in Oak Lawn, Illinois. Credentials: APRN, FNP-C.
How much does Martel Warden, APRN, FNP-C prescribe under Medicare Part D? ▼
In 2023, Martel Warden, APRN, FNP-C wrote 813 Medicare Part D claims totaling $21K in drug costs for 429 beneficiaries.
Where is Martel Warden, APRN, FNP-C located? ▼
Martel Warden, APRN, FNP-C is located at 9555 S 52ND AVE, Oak Lawn, IL, 60453. Phone: (708) 634-0950.
What is Martel Warden, APRN, FNP-C's NPI number? ▼
Martel Warden, APRN, FNP-C's National Provider Identifier (NPI) is 1659837367, issued on 02/18/2019.
Does Martel Warden, APRN, FNP-C prescribe more brand-name or generic drugs? ▼
Martel Warden, APRN, FNP-C's prescribing is 8% brand-name and 90% generic drugs by claim count, with $11K in brand drug costs.
Does Martel Warden, APRN, FNP-C prescribe opioids? ▼
Yes, Martel Warden, APRN, FNP-C had 89 opioid claims in 2023 with an opioid prescribing rate of 10.9%.
How many Emergency Registered Nurse providers are there in the US? ▼
There are 4,350 Emergency Registered Nurse providers across 54 states in the US. The average Emergency Registered Nurse provider writes 710 Medicare Part D claims per year.
What drugs does Martel Warden, APRN, FNP-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Martel Warden, APRN, FNP-C's most frequently prescribed drugs include Methylprednisolone, Acetaminophen-Codeine, Amoxicillin-Clavulanate Potass. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Martel Warden, APRN, FNP-C accept Medicare? ▼
Martel Warden, APRN, FNP-C appears in CMS Medicare data with 813 Part D claims and 429 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Martel Warden, APRN, FNP-C's credentials? ▼
Martel Warden, APRN, FNP-C's NPI is 1659837367 with credentials APRN, FNP-C. 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.