NPI registry status
Active
2026 NPPES data Sports Medicine (Family Medicine) Physician NPI 1144457169 MD
Verify on CMS → Brian Klostermann, MD
Sports Medicine (Family Medicine) Physician in Highland, 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 2,087 in Sports Medicine (Family 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
9K
Medicare Part D claims · 587 beneficiaries · Sports Medicine (Family Medicine) Physician avg: 1K
Generic prescribing
86%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$220.02
11 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
Brian Klostermann, MD filed 8,514 Medicare Part D claims in 2023 as a Sports Medicine (Family Medicine) Physician in Highland, Illinois, prescribing 86% generic.
- 9K
- Part D claims, 2023
- 86%
- 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.
Brian Klostermann, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
8,514 Top 2% higher than 98% 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 certification likely (heuristic, not verified)
Brian Klostermann, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 3 hospital affiliations - 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 Brian Klostermann, MD?
Quality data not reportedPrimary specialty
Sports Medicine (Family Medicine) Physician
Medicare Part D claims
8,514 7× vs specialty avg
Specialty distribution in Illinois
How Sports Medicine (Family 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 Sports Medicine (Family 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).
Brian Klostermann, MD appears in the CMS NPPES registry as a Sports Medicine (Family Medicine) Physician provider holding MD credentials at 12860 TROXLER AVE, Highland, IL, 62249, with a listed phone of (618) 651-2810. NPI 1144457169 was issued on 06/17/2009.
Medicare Part D records for calendar year 2023 show 8,514 prescription claims written by this provider, covering 587 Medicare beneficiaries and totaling roughly $843K in drug spend, split 13% brand-name and 86% generic by claim count, with an opioid prescribing rate of 3.0%.
Sports Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 2,087 enrolled providers across 52 states and an average of 1,242 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 | 1144457169 |
|---|---|
| Specialty | Sports Medicine (Family Medicine) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/17/2009 |
Hospital and facility affiliations
Facilities where Brian Klostermann, 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.
According to CMS billing records, Brian Klostermann, MD is affiliated with 3 Medicare-billing facilities.
Hshs Medical Group Inc
Highland, IL
St Josephs Hospital Breese OF The Hospital Sisters OF The Third Orde
Breese, IL
St Josephs Hospital OF The Hospital Sisters OF The Third Order OF St F
Highland, 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 Brian Klostermann, MD. Source: openpaymentsdata.cms.gov.
Total received
$220
Largest payer
ABBVIE 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 Brian Klostermann, MD. To verify Brian Klostermann, 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 · Typical
Brian Klostermann, MD - brand share 13.0%
Sports Medicine (Family Medicine) Physician average
13% brand-name claims vs 86% generic, on 8,514 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.
8,514
Total Claims
$843K
Total Drug Cost
587
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 17,966
- Total Day Supply
- 524,686
- Brand vs Generic
- 13% brand / 86% generic
- Brand Drug Cost
- $685K
- Generic Drug Cost
- $156K
- Opioid Claims
- 258 (3.0% rate)
- Antibiotic Claims
- 120
Patient Demographics
- Average Patient Age
- 73.1 years
- Avg HCC Risk Score
- 1.08
- Gender Split
- 43% female / 57% male
- Age Distribution
- <65: 47, 65-74: 302, 75-84: 176, 85+: 62
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Brian Klostermann, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
633 claims
- Lisinopril
Lisinopril
413 claims
- Amlodipine Besylate
Amlodipine Besylate
405 claims
- Levothyroxine Sodium
Levothyroxine Sodium
393 claims
- Sertraline Hcl 190
Sertraline Hcl
190 claims
- Tamsulosin Hcl 190
Tamsulosin Hcl
190 claims
- Omeprazole 188
Omeprazole
188 claims
- Simvastatin 187
Simvastatin
187 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 633 |
| Lisinopril | 413 |
| Amlodipine Besylate | 405 |
| Levothyroxine Sodium | 393 |
| Sertraline Hcl | 190 |
| Tamsulosin Hcl | 190 |
| Omeprazole | 188 |
| Simvastatin | 187 |
| Losartan Potassium | 179 |
| Metformin Hcl | 177 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Sports Medicine (Family Medicine) Physician in IL →
All providers in Illinois →
Compare specialties →
Sports Medicine (Family Medicine) Physician Overview
How Brian Klostermann, MD fits within the Sports Medicine (Family Medicine) Physician landscape nationally.
2,087
Sports Medicine (Family Medicine) Physician Providers in US
52
States with Sports Medicine (Family Medicine) Physician
1,242
Avg Claims per Provider
Brian Klostermann, MD's 8,514 claims are above the specialty average of 1,242.
Nearby Sports Medicine (Family Medicine) Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Klostermann.
Dr. Christopher Amann
MD
Libertyville, IL
Dr. Alvin Au-Yeung
DO, MPH
Evanston, IL
Dr. Brian Babka
MD
Warrenville, IL
Dr. Wendell Becton
M.D.
Bloomington, IL
Dr. Charles Bell
MD
Chicago, IL
Compare Sports Medicine (Family Medicine) Physician 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 Sports Medicine (Family 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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Medical Specialties Explained
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Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
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Explore Illinois
Frequently Asked Questions
What is Brian Klostermann, MD's specialty? ▼
Brian Klostermann, MD specializes in Sports Medicine (Family Medicine) Physician and practices in Highland, Illinois. Credentials: MD.
How much does Brian Klostermann, MD prescribe under Medicare Part D? ▼
In 2023, Brian Klostermann, MD wrote 8,514 Medicare Part D claims totaling $843K in drug costs for 587 beneficiaries.
Where is Brian Klostermann, MD located? ▼
Brian Klostermann, MD is located at 12860 TROXLER AVE, Highland, IL, 62249. Phone: (618) 651-2810.
What is Brian Klostermann, MD's NPI number? ▼
Brian Klostermann, MD's National Provider Identifier (NPI) is 1144457169, issued on 06/17/2009.
Does Brian Klostermann, MD prescribe more brand-name or generic drugs? ▼
Brian Klostermann, MD's prescribing is 13% brand-name and 86% generic drugs by claim count, with $685K in brand drug costs.
Does Brian Klostermann, MD prescribe opioids? ▼
Yes, Brian Klostermann, MD had 258 opioid claims in 2023 with an opioid prescribing rate of 3.0%.
How many Sports Medicine (Family Medicine) Physician providers are there in the US? ▼
There are 2,087 Sports Medicine (Family Medicine) Physician providers across 52 states in the US. The average Sports Medicine (Family Medicine) Physician provider writes 1,242 Medicare Part D claims per year.
What drugs does Brian Klostermann, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Brian Klostermann, MD's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Brian Klostermann, MD accept Medicare? ▼
Brian Klostermann, MD appears in CMS Medicare data with 8,514 Part D claims and 587 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Brian Klostermann, MD's credentials? ▼
Brian Klostermann, MD's NPI is 1144457169 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.