Dr. Aaron A Bare , MD
Orthopaedic Surgery โข Warrenville, IL
27650 Ferry Rd, Suite 100
Warrenville, IL 605553845
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Dr. Aaron Bare is listed in NPPES under Orthopaedic Surgery.
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NPI assigned on April 11, 2006; this date does not establish years in practice.
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Published CMS data list 2,727 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 73030 โ X-ray of shoulder, minimum of 2 views: 575 service units.
- J0702 โ Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg: 476 service units.
- 99213 โ Established patient outpatient office visit: 409 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 17 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 29 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Amoxicillin โ 29 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table ยท Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 60% of clinicians listed under Orthopaedic Surgery in Illinois (2024, 510 clinicians with data). Median for this group: 1,606. Middle half: 498 to 4,458.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 2,467 in 2020 to 2,727 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
27650 Ferry Rd
Suite 100
Warrenville, IL 605553845
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
CMS Doctors and Clinicians lists 2 distinct group names: Central Dupage Physician Group; Select Rehabilitation, Llc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
Northwestern University Feinberg Medical School
1999
What Public CMS Data Show
Orthopaedic Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
921 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider, 2024.
Medicare-allowed amount
About $392,941 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
Paid by Medicare
About $306,469 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024.
30-day fills
29 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$47 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $21,488.89 across 25 records.
By nature of payment
- Consulting Fee: $20,530.00 across 12 records.
- Food and Beverage: $745.64 across 12 records.
- Travel and Lodging: $213.25 across 1 record.
Reporting-company totals
- Catalyst OrthoScience: $13,405.99 across 11 records.
- Stryker Corporation: $8,082.90 across 14 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
27 years (graduated 1999)
CMS Doctors and Clinicians data list 1999 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026.
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, โDoes your provider accept Medicare as full payment?โ
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.
Enrolled in Medicare (PECOS)
Dr. Bare has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Bare as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Warrenville and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 60% of clinicians listed under Orthopaedic Surgery in Illinois (2024, 510 clinicians with data). Median for this group: 1,606. Middle half: 498 to 4,458.
Too few clinicians listed under Orthopaedic Surgery in Warrenville have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 90% of clinicians listed under Orthopaedic Surgery in Illinois (2024, 510 clinicians with data). Median for this group: $106,863. Middle half: $38,231 to $219,277.
Too few clinicians listed under Orthopaedic Surgery in Warrenville have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 90% of clinicians listed under Orthopaedic Surgery in Illinois (2024, 510 clinicians with data). Median for this group: $80,532. Middle half: $29,135 to $165,785.
Too few clinicians listed under Orthopaedic Surgery in Warrenville have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
Fewer Part D prescriptions than 80% of clinicians listed under Orthopaedic Surgery in Illinois (2024, 514 clinicians with data). Median for this group: 182. Middle half: 66 to 405.
Too few clinicians listed under Orthopaedic Surgery in Warrenville have Medicare Part D data for 2024 to compare.
Part D drug cost
A lower Part D drug cost than 95% of clinicians listed under Orthopaedic Surgery in Illinois (2024, 514 clinicians with data). Median for this group: $1,228. Middle half: $350 to $3,190.
Too few clinicians listed under Orthopaedic Surgery in Warrenville have Medicare Part D data for 2024 to compare.
10 active clinicians are listed under Orthopaedic Surgery with a practice address in Warrenville, IL (1,004 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 11% from 2,467 in 2020 to 2,727 in 2024.
- 2020: 2,467
- 2021: 2,898
- 2022: 3,074
- 2023: 2,673
- 2024: 2,727
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Medicare-allowed amount
Medicare-allowed amount increased 45% from $270,378 in 2020 to $392,941 in 2024.
- 2020: $270,378
- 2021: $339,693
- 2022: $387,604
- 2023: $362,252
- 2024: $392,941
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Paid by Medicare
Paid by Medicare increased 49% from $205,893 in 2020 to $306,469 in 2024.
- 2020: $205,893
- 2021: $261,380
- 2022: $298,125
- 2023: $277,531
- 2024: $306,469
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 50% from 58 in 2019 to 29 in 2024.
- 2019: 58
- 2020: 24
- 2021: 26
- 2023: 57
- 2024: 29
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30-day fills
30-day fills decreased 50% from 58 in 2019 to 29 in 2024.
- 2019: 58
- 2020: 24
- 2021: 26
- 2023: 57
- 2024: 29
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Part D drug cost
Part D drug cost went from $284 in 2019 to $47 in 2024.
- 2019: $284
- 2020: $135
- 2021: $168
- 2023: $313
- 2024: $47
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 22% from $27,540.42 in 2021 to $21,488.89 in 2025.
- 2021: $27,540.42
- 2022: $36,590.85
- 2023: $13,602.01
- 2024: $18,785.32
- 2025: $21,488.89
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 โ December 31, 2025): 25 records totaling $21,488.89.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Catalyst OrthoScience |
Consulting Fee
Cash or cash equivalent
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โ | General | $4,330.00 |
| Stryker Corporation |
Consulting Fee
Cash or cash equivalent
|
SIMPLICITI | General | $4,000.00 |
| Stryker Corporation |
Consulting Fee
Cash or cash equivalent
|
BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION | General | $3,200.00 |
| Catalyst OrthoScience |
Consulting Fee
Cash or cash equivalent
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โ | General | $1,000.00 |
| Catalyst OrthoScience |
Consulting Fee
Cash or cash equivalent
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โ | General | $1,000.00 |
| Catalyst OrthoScience |
Consulting Fee
Cash or cash equivalent
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โ | General | $1,000.00 |
| Catalyst OrthoScience |
Consulting Fee
Cash or cash equivalent
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โ | General | $1,000.00 |
| Catalyst OrthoScience |
Consulting Fee
Cash or cash equivalent
|
โ | General | $1,000.00 |
| Catalyst OrthoScience |
Consulting Fee
Cash or cash equivalent
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โ | General | $1,000.00 |
| Catalyst OrthoScience |
Consulting Fee
Cash or cash equivalent
|
โ | General | $1,000.00 |
| Catalyst OrthoScience |
Consulting Fee
Cash or cash equivalent
|
โ | General | $1,000.00 |
| Catalyst OrthoScience |
Consulting Fee
Cash or cash equivalent
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โ | General | $1,000.00 |
| Stryker Corporation |
Travel and Lodging
Cash or cash equivalent
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BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION | General | $213.25 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION | General | $169.68 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
AEQUALIS PERFORM REVERSED | General | $164.38 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION | General | $117.94 |
| Catalyst OrthoScience |
Food and Beverage
Cash or cash equivalent
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โ | General | $75.99 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION | General | $58.90 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
AEQUALIS PERFORM | General | $46.45 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION | General | $31.99 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
TORNIER PERFORM REVERSED AUGMENTED GLENOID | General | $31.06 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
โ | General | $15.28 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION | General | $14.57 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION | General | $9.82 |
| Stryker Corporation |
Food and Beverage
In-kind items and services
|
BLUEPRINT PATIENT SPECIFIC INSTRUMENTATION | General | $9.58 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ by Provider and Service data, 2017โ2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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73030
X-ray of shoulder, minimum of 2 views
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575 | 484 | $290.21 | $40.87 |
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J0702
Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg
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476 | 199 | $15.97 | $6.88 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
409 | 331 | $123.00 | $96.25 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
|
249 | 249 | $205.00 | $118.34 |
|
20610
Aspiration and/or injection of fluid from large joint
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231 | 209 | $226.08 | $72.99 |
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73564
X-ray of knee, 4 or more views
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189 | 183 | $215.63 | $63.12 |
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99204
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
|
134 | 134 | $311.00 | $176.09 |
|
99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
126 | 118 | $194.00 | $132.55 |
|
23472
Prosthetic repair of shoulder joint, total shoulder
|
77 | 76 | $8425.24 | $1579.83 |
|
73562
X-ray of knee, 3 views
|
52 | 50 | $293.37 | $44.57 |
|
73221
Mri scan of arm joint without contrast
|
42 | 42 | $1187.00 | $153.90 |
|
27447
Replacement of knee joint, both sides of knee
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33 | 32 | $7068.72 | $1405.90 |
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29826
Shaving of part of shoulder bone and repair of ligament using an endoscope
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32 | 32 | $4188.48 | $186.19 |
|
29827
Repair of shoulder rotator cuff using an endoscope
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32 | 32 | $5805.84 | $1172.16 |
|
73721
Mri scan of leg joint without contrast
|
29 | 28 | $1214.00 | $148.57 |
|
73020
X-ray of shoulder, 1 view
|
28 | 25 | $102.22 | $23.19 |
|
29824
Partial removal of collar bone at shoulder using an endoscope
|
13 | 13 | $2628.32 | $230.52 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Amoxicillin | Amoxicillin | 29 | 29 | $46.99 | 19 |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 207X00000X
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - ORTHOPEDIC SURGERY
I20051202000088
IL
3476523259
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File, CMS release of October 2, 2026
Central Dupage Physician Group
10 E, Naperville, IL 605651469
Phone: 6302252663
Central Dupage Physician Group
1800 N Main St, Wheaton, IL 601873112
Phone: 6309334800
Central Dupage Physician Group
233 S Gary Ave, Bloomingdale, IL 601082213
Phone: 6302086775
Central Dupage Physician Group
25 N Winfield Rd, Winfield, IL 601901295
Central Dupage Physician Group
27650 Ferry Rd, Warrenville, IL 605553845
Phone: 6302252663
Central Dupage Physician Group
300 Randall Rd, Geneva, IL 601344200
Phone: 6309334700
Central Dupage Physician Group
304 Randall Rd, Geneva, IL 601344200
Phone: 6303077799
Central Dupage Physician Group
885 Roosevelt Rd, Glen Ellyn, IL 601376141
Select Rehabilitation, Llc
2600 Compass Rd, Glenview, IL 600268001
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Family Medicine - Sports Medicine
Doctor of Medicine (M.D.)
Orthopaedic Surgery - Hand Surgery
Doctor of Medicine (M.D.)
Orthopaedic Surgery
Doctor of Medicine (M.D.)
Orthopaedic Surgery - Hand Surgery
Doctor of Medicine (M.D.)
Podiatrist
Doctor of Podiatric Medicine
Physician Assistant
Physician Assistant (Certified)
Career & Practice History
NPI enumerated April 11, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to November 2026.
NPI Administrative Meta
Other Orthopaedic Surgery Specialists in Warrenville
- Dr. Gregory Witkowski, MD
- Dr. William Sterba, MD
- Dr. Sanjeev Bhatia, MD
- Dr. David Watt, MD
- Dr. Lenard Labelle, MD
- Dr. Mossub Qatu, MD
Mailing Address
27650 Ferry Rd, Suite 100
Warrenville, IL 605553845
Phone: 6302252663