NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1538624440 APN-CNP
Verify on CMS → Tiffany Posey, APN-CNP
Family Nurse Practitioner in Skokie, 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 216,959 in Family 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
201
Medicare Part D claims · 154 beneficiaries · Family Nurse Practitioner avg: 1K
MIPS score
93.1/100
▲ 10 pts above national avg 83.5 · Exceptional
What the federal data shows
Tiffany Posey, APN-CNP reported a CMS MIPS final score of 93.1/100 - above the 83.5 national average - and filed 201 Medicare Part D claims in 2024.
- 93.1/100
- MIPS score · +10 vs avg
- 201
- Part D claims, 2024
- ≥69th
- pct among measured MIPS (lower-bound band)
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.
Federal trust snapshot
What official records show about Tiffany Posey, APN-CNP
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1538624440), first enumerated 02/05/2019.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 201 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 93.1/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not Tiffany Posey, APN-CNP's individual license status. Verify directly with the state medical board.
Source: IDFPR annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1538624440 · Family Nurse Practitioner
NPI-10 · ENUM-RECENT · TAX-MEGA · MIPS-ABOVE · RX-LIGHT · BOOK-MID · PHOTO-FINISH
- NPI-10 1538624440
- ENUM-RECENT 2019
- TAX-MEGA 217K Family Nurse
- MIPS-ABOVE 93.1/100
- RX-LIGHT 201
- BOOK-MID 7,207 in Illinois
- PHOTO-FINISH Babatunde Adeosun · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Posey · this pro…
Posey · this provider
93.1 MIPS pts
- Rochelle Harden …
Rochelle Harden
93.1 MIPS pts
- Babatunde Adeosu…
Babatunde Adeosun
93.1 MIPS pts
- Melissa Clevenge…
Melissa Clevenger
93.1 MIPS pts
- Katrina Francis …
Katrina Francis
93.1 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Tiffany Posey, APN-CNP's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
93 ≥ 69th percentile 69% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Tiffany Posey, APN-CNP sits
This provider among family nurse practitioner peers
Across the 26,556 family nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, Tiffany Posey, APN-CNP writes more Part D claims than 34% of them and scores higher on MIPS quality than 70% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one family nurse practitioner peer from a representative sample of 60; the gold marker is Tiffany Posey, APN-CNP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Tiffany Posey, APN-CNP?
High performer (top quartile)Primary specialty
Family Nurse Practitioner
Medicare Part D claims
201 85% vs specialty avg
MIPS final score
93.1/100 9.6 pts vs avg
Specialty distribution in Illinois
How Family Nurse Practitioner compares to other specialties among Illinois providers
Medicare quality performance, MIPS
Tiffany Posey, APN-CNP's 2023 MIPS final score plotted against the Family Nurse Practitioner national average
- MIPS Final Score
- 93.1/100
- vs 83.5 national avg · 2023 performance year
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).
Practice Address
Provider Details
| NPI | 1538624440 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | APN-CNP |
| Gender | Female |
| NPI Issued | 02/05/2019 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
93.0872
Final Score
Measured-score avg: 83.5
80.7919
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Tiffany Posey, APN-CNP 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.
Endeavor Health Medical Group
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).
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 Tiffany Posey, APN-CNP. To verify Tiffany Posey, 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 2024.
201
Total Claims
$4K
Total Drug Cost
154
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 201.1
- Total Day Supply
- 1,610
- Generic Drug Cost
- $2K
- Antibiotic Claims
- 100
Patient Demographics
- Average Patient Age
- 73.1 years
- Avg HCC Risk Score
- 1.01
- Gender Split
- 69% female / 31% male
- Age Distribution
- <65: 12, 65-74: 80, 75-84: 44, 85+: 18
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Tiffany Posey, APN-CNP prescribes most
Top Medicare Part D drugs by claim count, 2024
- Cefpodoxime Proxetil
Cefpodoxime Proxetil
22 claims
- Azithromycin
Azithromycin
19 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
17 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
12 claims
- Oseltamivir Phosph…
Oseltamivir Phosphate
11 claims
| Drug | Claims |
|---|---|
| Cefpodoxime Proxetil | 22 |
| Azithromycin | 19 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 17 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 12 |
| Oseltamivir Phosphate | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Nurse Practitioner Overview
How Tiffany Posey, APN-CNP fits within the Family Nurse Practitioner landscape nationally.
216,959
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,302
Avg Claims per Provider
Tiffany Posey, APN-CNP's 201 claims are below the specialty average of 1,302.
Nationwide Family Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Posey, both outside Illinois so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (93.1 here).
Same NPPES enumeration year (2019)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Nurse Practitioner Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Posey.
One of 7,207 Family Nurse Practitioner providers enrolled in Illinois, 5 are shown here.
Deborah Aaron
FNP
Chicago, IL
Lawrence Abah
APN
Aurora, IL
Theresa Abbadusky
Pekin, IL
Nadia Abbasi-Kling
FNP-BC
Chicago, IL
Manar Abdalla
FNP
Chicago, IL
Compare Family Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Tiffany Posey, APN-CNP's specialty? ▼
Tiffany Posey, APN-CNP specializes in Family Nurse Practitioner and practices in Skokie, Illinois. Credentials: APN-CNP.
How much does Tiffany Posey, APN-CNP prescribe under Medicare Part D? ▼
In 2024, Tiffany Posey, APN-CNP wrote 201 Medicare Part D claims totaling $4K in drug costs for 154 beneficiaries.
What is Tiffany Posey, APN-CNP's Medicare quality score? ▼
Tiffany Posey, APN-CNP has a CMS MIPS Final Score of 93.1/100 (Quality: 80.8). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Tiffany Posey, APN-CNP located? ▼
Tiffany Posey, APN-CNP is located at 9977 WOODS DR STE 100, Skokie, IL, 60077. Phone: (224) 364-2273.
What is Tiffany Posey, APN-CNP's NPI number? ▼
Tiffany Posey, APN-CNP's National Provider Identifier (NPI) is 1538624440, issued on 02/05/2019.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 216,959 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,302 Medicare Part D claims per year.
What drugs does Tiffany Posey, APN-CNP prescribe most often? ▼
Based on 2024 Medicare Part D data, Tiffany Posey, APN-CNP's most frequently prescribed drugs include Cefpodoxime Proxetil, Azithromycin, Amoxicillin-Clavulanate Potass. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Tiffany Posey, APN-CNP accept Medicare? ▼
Tiffany Posey, APN-CNP appears in CMS Medicare data with 201 Part D claims and 154 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Tiffany Posey, APN-CNP's credentials? ▼
Tiffany Posey, APN-CNP's NPI is 1538624440 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 (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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 August 2026 (NPPES) / 2024 (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
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 August 2026.