NPI registry status
Active
2026 NPPES data Critical Care Medicine (Internal Medicine) Physician NPI 1710906847 MD
Verify on CMS → Firas Dairi, MD
Critical Care Medicine (Internal Medicine) Physician in Algonquin, 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 6,646 in Critical Care Medicine (Internal Medicine) 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
2K
Medicare Part D claims · 297 beneficiaries · Critical Care Medicine (Internal Medicine) Physician avg: 1K
Generic prescribing
0%
generic claims · 66% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$11.09
1 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
Firas Dairi, MD filed 1,802 Medicare Part D claims in 2023 as a Critical Care Medicine (Internal Medicine) Physician in Algonquin, Illinois, prescribing 0% generic.
- 2K
- Part D claims, 2023
- 0%
- generic prescribing
- $11.09
- 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.
Firas Dairi, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,802 Top 17% higher than 83% 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-eligible specialty (heuristic, not verified)
Firas Dairi, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Firas Dairi, MD?
Quality data not reportedPrimary specialty
Critical Care Medicine (Internal Medicine) Physician
Medicare Part D claims
1,802 69% vs specialty avg
Specialty distribution in Illinois
How Critical Care Medicine (Internal Medicine) 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 Critical Care Medicine (Internal Medicine) 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).
Firas Dairi, MD appears in the CMS NPPES registry as a Critical Care Medicine (Internal Medicine) Physician provider holding MD credentials at 2971 W ALGONQUIN RD STE 104, Algonquin, IL, 60102, with a listed phone of (847) 658-7693. NPI 1710906847 was issued on 07/19/2006.
Medicare Part D records for calendar year 2023 show 1,802 prescription claims written by this provider, covering 297 Medicare beneficiaries and totaling roughly $1.8 million in drug spend, split 66% brand-name and 0% generic by claim count.
Critical Care Medicine (Internal Medicine) Physician is a mid-sized specialty nationwide, with 6,646 enrolled providers across 53 states and an average of 1,069 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 | 1710906847 |
|---|---|
| Specialty | Critical Care Medicine (Internal Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/19/2006 |
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 Firas Dairi, MD. Source: openpaymentsdata.cms.gov.
Total received
$11
Largest payer
Itamar Medical 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 Firas Dairi, MD. To verify Firas Dairi, 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 · Brand-heavy
Firas Dairi, MD - brand share 66.0%
Critical Care Medicine (Internal Medicine) Physician average
66% brand-name claims vs 0% generic, on 1,802 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.
1,802
Total Claims
$1.8M
Total Drug Cost
297
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,470
- Total Day Supply
- 70,131
- Brand vs Generic
- 66% brand / 0% generic
- Brand Drug Cost
- $1.7M
- Antibiotic Claims
- 107
Patient Demographics
- Average Patient Age
- 75.2 years
- Avg HCC Risk Score
- 1.86
- Gender Split
- 55% female / 45% male
- Age Distribution
- <65: 17, 65-74: 121, 75-84: 125, 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 Firas Dairi, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Trelegy Ellipta
Trelegy Ellipta
409 claims
- Anoro Ellipta
Anoro Ellipta
167 claims
- Montelukast Sodium 156
Montelukast Sodium
156 claims
- Albuterol Sulfate … 117
Albuterol Sulfate Hfa
117 claims
- Breo Ellipta 87
Breo Ellipta
87 claims
- Prednisone 75
Prednisone
75 claims
- Spiriva Respimat 74
Spiriva Respimat
74 claims
- Ofev 72
Ofev
72 claims
| Drug | Claims |
|---|---|
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 409 |
| Anoro Ellipta Umeclidinium Brm/Vilanterol Tr | 167 |
| Montelukast Sodium | 156 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 117 |
| Breo Ellipta Fluticasone/Vilanterol | 87 |
| Prednisone | 75 |
| Spiriva Respimat Tiotropium Bromide | 74 |
| Ofev Nintedanib Esylate | 72 |
| Incruse Ellipta Umeclidinium Bromide | 53 |
| Stiolto Respimat Tiotropium Br/Olodaterol Hcl | 48 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Critical Care Medicine (Internal Medicine) Physician in IL →
All providers in Illinois →
Compare specialties →
Critical Care Medicine (Internal Medicine) Physician Overview
How Firas Dairi, MD fits within the Critical Care Medicine (Internal Medicine) Physician landscape nationally.
6,646
Critical Care Medicine (Internal Medicine) Physician Providers in US
53
States with Critical Care Medicine (Internal Medicine) Physician
1,069
Avg Claims per Provider
Firas Dairi, MD's 1,802 claims are above the specialty average of 1,069.
Nearby Critical Care Medicine (Internal Medicine) Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Dairi.
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 Critical Care Medicine (Internal Medicine) 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 Firas Dairi, MD's specialty? ▼
Firas Dairi, MD specializes in Critical Care Medicine (Internal Medicine) Physician and practices in Algonquin, Illinois. Credentials: MD.
How much does Firas Dairi, MD prescribe under Medicare Part D? ▼
In 2023, Firas Dairi, MD wrote 1,802 Medicare Part D claims totaling $1.8M in drug costs for 297 beneficiaries.
Where is Firas Dairi, MD located? ▼
Firas Dairi, MD is located at 2971 W ALGONQUIN RD STE 104, Algonquin, IL, 60102. Phone: (847) 658-7693.
What is Firas Dairi, MD's NPI number? ▼
Firas Dairi, MD's National Provider Identifier (NPI) is 1710906847, issued on 07/19/2006.
Does Firas Dairi, MD prescribe more brand-name or generic drugs? ▼
Firas Dairi, MD's prescribing is 66% brand-name and 0% generic drugs by claim count, with $1.7M in brand drug costs.
How many Critical Care Medicine (Internal Medicine) Physician providers are there in the US? ▼
There are 6,646 Critical Care Medicine (Internal Medicine) Physician providers across 53 states in the US. The average Critical Care Medicine (Internal Medicine) Physician provider writes 1,069 Medicare Part D claims per year.
What drugs does Firas Dairi, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Firas Dairi, MD's most frequently prescribed drugs include Trelegy Ellipta, Anoro Ellipta, Montelukast Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Firas Dairi, MD accept Medicare? ▼
Firas Dairi, MD appears in CMS Medicare data with 1,802 Part D claims and 297 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Firas Dairi, MD's credentials? ▼
Firas Dairi, MD's NPI is 1710906847 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.