NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1629120837 APN CNP
Verify on CMS → Stephani Cox, APN CNP
Nurse Practitioner in Springfield, 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 87,700 in Nurse Practitioner, 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
27
Medicare Part D claims · 18 beneficiaries · Nurse Practitioner avg: 1K
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Stephani Cox, APN CNP filed 27 Medicare Part D claims in 2023 as a Nurse Practitioner in Springfield, Illinois.
- 27
- Part D claims, 2023
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.
Stephani Cox, APN CNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
27 0th percentile higher than 0% 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 Stephani Cox, APN CNP?
Quality data not reportedPrimary specialty
Nurse Practitioner
Medicare Part D claims
27 98% vs specialty avg
Specialty distribution in Illinois
How Nurse Practitioner 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 Nurse Practitioner. 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).
Stephani Cox, APN CNP appears in the CMS NPPES registry as a Nurse Practitioner provider holding APN CNP credentials at 1000 E WASHINGTON, Springfield, IL, 62703, with a listed phone of (217) 544-8790. NPI 1629120837 was issued on 01/17/2007.
Medicare Part D records for calendar year 2023 show 27 prescription claims written by this provider, covering 18 Medicare beneficiaries and totaling roughly $836 in drug spend.
Nurse Practitioner is a high-volume specialty nationwide, with 87,700 enrolled providers across 56 states and an average of 1,084 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 | 1629120837 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | APN CNP |
| Gender | Female |
| NPI Issued | 01/17/2007 |
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 Stephani Cox, APN CNP. To verify Stephani Cox, APN CNP'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.
27
Total Claims
$836
Total Drug Cost
18
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 38
- Total Day Supply
- 1,118
- Generic Drug Cost
- $586
Patient Demographics
- Average Patient Age
- 37.4 years
- Avg HCC Risk Score
- 0.61
- Age Distribution
- <65: 18, 65-74: 0, 75-84: 0, 85+: 0
Nurse Practitioner Overview
How Stephani Cox, APN CNP fits within the Nurse Practitioner landscape nationally.
87,700
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider
Stephani Cox, APN CNP's 27 claims are below the specialty average of 1,084.
Nearby Nurse Practitioner Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Cox.
Dr. Janice Abadilla
FNP-BC
Peoria, IL
Dr. Roseviminda Abano
CNP
Gurnee, IL
Philomena Abebe
Park Ridge, IL
Dr. Milagros Abellera
APN
Chicago, IL
Dr. Edwina Abloh
APN-CNP
Skokie, IL
Compare Nurse Practitioner 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 Nurse Practitioner 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
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Illinois
Frequently Asked Questions
What is Stephani Cox, APN CNP's specialty? ▼
Stephani Cox, APN CNP specializes in Nurse Practitioner and practices in Springfield, Illinois. Credentials: APN CNP.
How much does Stephani Cox, APN CNP prescribe under Medicare Part D? ▼
In 2023, Stephani Cox, APN CNP wrote 27 Medicare Part D claims totaling $836 in drug costs for 18 beneficiaries.
Where is Stephani Cox, APN CNP located? ▼
Stephani Cox, APN CNP is located at 1000 E WASHINGTON, Springfield, IL, 62703. Phone: (217) 544-8790.
What is Stephani Cox, APN CNP's NPI number? ▼
Stephani Cox, APN CNP's National Provider Identifier (NPI) is 1629120837, issued on 01/17/2007.
How many Nurse Practitioner providers are there in the US? ▼
There are 87,700 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
Does Stephani Cox, APN CNP accept Medicare? ▼
Stephani Cox, APN CNP appears in CMS Medicare data with 27 Part D claims and 18 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Stephani Cox, APN CNP's credentials? ▼
Stephani Cox, APN CNP's NPI is 1629120837 with credentials APN CNP. 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.