2026 NPPES data Otolaryngology Physician NPI 1558320747 MD
Verify on CMS →

BRIAN FARRELL, MD

Otolaryngology Physician in ORLAND PARK, Illinois. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
402
Medicare Part D claims · 218 beneficiaries · Otolaryngology Physician avg: 509
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

BRIAN FARRELL, MD filed 402 Medicare Part D claims in 2023 as a Otolaryngology Physician in ORLAND PARK, Illinois, prescribing 92% generic.

402
Part D claims, 2023
92%
generic prescribing

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.

BRIAN FARRELL, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

402 Top 38% higher than 62% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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)

BRIAN FARRELL, 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 BRIAN FARRELL, MD?

Quality data not reported

NPI registry status

Active

Issued 03/17/2006

NPI 1558320747

Primary specialty

Otolaryngology Physician

Mid-sized

10,895 US NPIs in this specialty

Medicare Part D claims

402 21% vs specialty avg

2023 prescription claims

Specialty avg: 509

Specialty distribution in Illinois

How Otolaryngology Physician compares to other specialties among Illinois providers

Illinois providers

Otolaryngology Physician share within Illinois

1. Otolaryngology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Otolaryngology Physician share within Illinois

Specialty board-certification context

Estimated specialty board-certified rate — Otolaryngology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Otolaryngology Physician ABMS/AOA estimate

Est. board-certified rate (Otolaryngology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Otolaryngology Physician) — ABMS / AOA estimate

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).

BRIAN FARRELL, MD appears in the CMS NPPES registry as a Otolaryngology Physician provider holding MD credentials at 16001 108TH AVE, ORLAND PARK, IL, 60467, with a listed phone of (708) 460-0007. NPI 1558320747 was issued on 03/17/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what FARRELL most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 402 prescription claims written by this provider, covering 218 Medicare beneficiaries and totaling roughly $37K in drug spend, split 8% brand-name and 92% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Otolaryngology Physician is a mid-sized specialty nationwide, with 10,895 enrolled providers across 54 states and an average of 509 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

16001 108TH AVE
ORLAND PARK, IL 60467

Provider Details

NPI 1558320747
Specialty Otolaryngology Physician
Credentials MD
Gender Male
NPI Issued 03/17/2006

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 BRIAN FARRELL, MD. To verify BRIAN FARRELL, 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

BRIAN FARRELL, MD — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 402 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.

402
Total Claims
$37K
Total Drug Cost
218
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
546
Total Day Supply
11,432
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$28K
Generic Drug Cost
$9K
Antibiotic Claims
25

Patient Demographics

Average Patient Age
72.6 years
Avg HCC Risk Score
1.16
Gender Split
54% female / 46% male
Age Distribution
<65: 24, 65-74: 103, 75-84: 71, 85+: 20

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What BRIAN FARRELL, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Ipratropium Bromide
84
Methylprednisolone
63
Montelukast Sodium
54
Mometasone Furoate
32
Fluticasone Propionate
17
Neomycin-Polymyxin-Hc
Neomycin/Polymyxin B/Hydrocort
16
Azithromycin
14
Amitriptyline Hcl
13
Prednisone
13
Ciprofloxacin-Dexamethasone
Ciprofloxacin Hcl/Dexameth
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Otolaryngology Physician Overview

How BRIAN FARRELL, MD fits within the Otolaryngology Physician landscape nationally.

10,895
Otolaryngology Physician Providers in US
54
States with Otolaryngology Physician
509
Avg Claims per Provider

BRIAN FARRELL, MD's 402 claims are below the specialty average of 509.

Nearby Otolaryngology Physician Providers in Illinois

Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as FARRELL.

Compare Otolaryngology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is BRIAN FARRELL, MD's specialty?
BRIAN FARRELL, MD specializes in Otolaryngology Physician and practices in ORLAND PARK, Illinois. Credentials: MD.
How much does BRIAN FARRELL, MD prescribe under Medicare Part D?
In 2023, BRIAN FARRELL, MD wrote 402 Medicare Part D claims totaling $37K in drug costs for 218 beneficiaries.
Where is BRIAN FARRELL, MD located?
BRIAN FARRELL, MD is located at 16001 108TH AVE, ORLAND PARK, IL, 60467. Phone: (708) 460-0007.
What is BRIAN FARRELL, MD's NPI number?
BRIAN FARRELL, MD's National Provider Identifier (NPI) is 1558320747, issued on 03/17/2006.
Does BRIAN FARRELL, MD prescribe more brand-name or generic drugs?
BRIAN FARRELL, MD's prescribing is 8% brand-name and 92% generic drugs by claim count, with $28K in brand drug costs.
How many Otolaryngology Physician providers are there in the US?
There are 10,895 Otolaryngology Physician providers across 54 states in the US. The average Otolaryngology Physician provider writes 509 Medicare Part D claims per year.
What drugs does BRIAN FARRELL, MD prescribe most often?
Based on 2023 Medicare Part D data, BRIAN FARRELL, MD's most frequently prescribed drugs include Ipratropium Bromide, Methylprednisolone, Montelukast Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BRIAN FARRELL, MD accept Medicare?
BRIAN FARRELL, MD appears in CMS Medicare data with 402 Part D claims and 218 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BRIAN FARRELL, MD's credentials?
BRIAN FARRELL, MD's NPI is 1558320747 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

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