NPI registry status
Active
2026 NPPES data Sleep Medicine (Psychiatry & Neurology) Physician NPI 1780885384 MD
Verify on CMS → Christopher Fahey, MD
Sleep Medicine (Psychiatry & Neurology) Physician in Arlington Heights, 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 376 in Sleep Medicine (Psychiatry & Neurology) 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
3K
Medicare Part D claims · 462 beneficiaries · Sleep Medicine (Psychiatry & Neurology) Physician avg: 1K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
89.7/100
▲ 7 pts above national avg 83.1 · Exceptional
Industry payments
$555.54
30 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
Christopher Fahey, MD reported a CMS MIPS final score of 89.7/100 - above the 83.1 national average - and filed 2,542 Medicare Part D claims in 2023.
- 89.7/100
- MIPS score · +7 vs avg
- 3K
- Part D claims, 2023
- 92%
- generic prescribing
- 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.
Christopher Fahey, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
90 Top 42% higher than 58% of 477,587 scored providers
Each bar is a band; taller bars hold more scored 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Christopher Fahey, MD sits
This provider among sleep medicine (psychiatry & neurology) physician peers
Across the 126 sleep medicine (psychiatry & neurology) physician providers who report both Medicare Part D prescribing and a MIPS quality score, Christopher Fahey, MD writes more Part D claims than 85% of them and scores higher on MIPS quality than 56% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one sleep medicine (psychiatry & neurology) physician peer from a representative sample of 60; the gold marker is Christopher Fahey, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Christopher Fahey, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Christopher Fahey, MD?
High performer (top quartile)Primary specialty
Sleep Medicine (Psychiatry & Neurology) Physician
Medicare Part D claims
2,542 153% vs specialty avg
MIPS final score
89.7/100 6.6 pts vs avg
Specialty distribution in Illinois
How Sleep Medicine (Psychiatry & Neurology) Physician compares to other specialties among Illinois providers
Medicare quality performance, MIPS
Christopher Fahey, MD's 2023 MIPS final score plotted against the Sleep Medicine (Psychiatry & Neurology) Physician national average
- MIPS Final Score
- 89.7/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Sleep Medicine (Psychiatry & Neurology) Physician) - 89.7/100 vs national avg 83.1
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).
Christopher Fahey, MD appears in the CMS NPPES registry as a Sleep Medicine (Psychiatry & Neurology) Physician provider holding MD credentials at 1051 W RAND RD STE 210, Arlington Heights, IL, 60004, with a listed phone of (847) 618-9510. NPI 1780885384 was issued on 05/30/2007.
Medicare Part D records for calendar year 2023 show 2,542 prescription claims written by this provider, covering 462 Medicare beneficiaries and totaling roughly $330K in drug spend, split 8% brand-name and 92% generic by claim count, with an opioid prescribing rate of 0.7%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 89.7/100 for the 2023 performance year (Quality 79.3), compared with the national average of 83.1.
Sleep Medicine (Psychiatry & Neurology) Physician is a narrow specialty nationwide, with 376 enrolled providers across 46 states and an average of 1,005 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 | 1780885384 |
|---|---|
| Specialty | Sleep Medicine (Psychiatry & Neurology) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 05/30/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
89.6626
Final Score
Avg: 83.1
79.3253
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Christopher Fahey, 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.
Advocate Health And Hospitals Corporation
Park Ridge, 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 Christopher Fahey, MD. Source: openpaymentsdata.cms.gov.
Total received
$556
Largest payer
Inspire Medical Systems, Inc.
Most common payment type
Education
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 Christopher Fahey, MD. To verify Christopher Fahey, 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.
Brand vs generic prescribing mix · Generic-heavy
Christopher Fahey, MD - brand share 8.0%
Sleep Medicine (Psychiatry & Neurology) Physician average
8% brand-name claims vs 92% generic, on 2,542 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.
2,542
Total Claims
$330K
Total Drug Cost
462
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 5,022
- Total Day Supply
- 147,244
- Brand vs Generic
- 8% brand / 92% generic
- Brand Drug Cost
- $224K
- Generic Drug Cost
- $105K
- Opioid Claims
- 19 (0.7% rate)
Patient Demographics
- Average Patient Age
- 76.3 years
- Avg HCC Risk Score
- 1.30
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 29, 65-74: 159, 75-84: 189, 85+: 85
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Christopher Fahey, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Donepezil Hcl
Donepezil Hcl
359 claims
- Gabapentin
Gabapentin
331 claims
- Carbidopa-Levodopa
Carbidopa-Levodopa
163 claims
- Memantine Hcl
Memantine Hcl
156 claims
- Primidone 133
Primidone
133 claims
- Pregabalin 99
Pregabalin
99 claims
- Levetiracetam 92
Levetiracetam
92 claims
- Propranolol Hcl Er 58
Propranolol Hcl Er
58 claims
| Drug | Claims |
|---|---|
| Donepezil Hcl | 359 |
| Gabapentin | 331 |
| Carbidopa-Levodopa Carbidopa/Levodopa | 163 |
| Memantine Hcl | 156 |
| Primidone | 133 |
| Pregabalin | 99 |
| Levetiracetam | 92 |
| Propranolol Hcl Er Propranolol Hcl | 58 |
| Sumatriptan Succinate | 56 |
| Duloxetine Hcl | 53 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Sleep Medicine (Psychiatry & Neurology) Physician in IL →
All providers in Illinois →
Compare specialties →
Sleep Medicine (Psychiatry & Neurology) Physician Overview
How Christopher Fahey, MD fits within the Sleep Medicine (Psychiatry & Neurology) Physician landscape nationally.
376
Sleep Medicine (Psychiatry & Neurology) Physician Providers in US
46
States with Sleep Medicine (Psychiatry & Neurology) Physician
1,005
Avg Claims per Provider
Christopher Fahey, MD's 2,542 claims are above the specialty average of 1,005.
Nearby Sleep Medicine (Psychiatry & Neurology) Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Fahey.
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 Sleep Medicine (Psychiatry & Neurology) 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.
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Frequently Asked Questions
What is Christopher Fahey, MD's specialty? ▼
Christopher Fahey, MD specializes in Sleep Medicine (Psychiatry & Neurology) Physician and practices in Arlington Heights, Illinois. Credentials: MD.
How much does Christopher Fahey, MD prescribe under Medicare Part D? ▼
In 2023, Christopher Fahey, MD wrote 2,542 Medicare Part D claims totaling $330K in drug costs for 462 beneficiaries.
What is Christopher Fahey, MD's Medicare quality score? ▼
Christopher Fahey, MD has a CMS MIPS Final Score of 89.7/100 (Quality: 79.3). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Christopher Fahey, MD located? ▼
Christopher Fahey, MD is located at 1051 W RAND RD STE 210, Arlington Heights, IL, 60004. Phone: (847) 618-9510.
What is Christopher Fahey, MD's NPI number? ▼
Christopher Fahey, MD's National Provider Identifier (NPI) is 1780885384, issued on 05/30/2007.
Does Christopher Fahey, MD prescribe more brand-name or generic drugs? ▼
Christopher Fahey, MD's prescribing is 8% brand-name and 92% generic drugs by claim count, with $224K in brand drug costs.
Does Christopher Fahey, MD prescribe opioids? ▼
Yes, Christopher Fahey, MD had 19 opioid claims in 2023 with an opioid prescribing rate of 0.7%.
How many Sleep Medicine (Psychiatry & Neurology) Physician providers are there in the US? ▼
There are 376 Sleep Medicine (Psychiatry & Neurology) Physician providers across 46 states in the US. The average Sleep Medicine (Psychiatry & Neurology) Physician provider writes 1,005 Medicare Part D claims per year.
What drugs does Christopher Fahey, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Christopher Fahey, MD's most frequently prescribed drugs include Donepezil Hcl, Gabapentin, Carbidopa-Levodopa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Christopher Fahey, MD accept Medicare? ▼
Christopher Fahey, MD appears in CMS Medicare data with 2,542 Part D claims and 462 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Christopher Fahey, MD's credentials? ▼
Christopher Fahey, MD's NPI is 1780885384 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.
- 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 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.