Dr. Hershel Warren Cannon , MD, MA
Neurological Surgery • Chicago, IL
1725 W Harrison St Ste 855
Chicago, IL 606125113
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. Hershel Cannon is listed in NPPES under Neurological Surgery.
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NPI assigned on June 6, 2023; this date does not establish years in practice.
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Published CMS data list 47 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Oxycodone Hcl — 13 prescription fills, including refills.
- Cephalexin — 12 prescription fills, including refills.
- Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) — 11 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 4 records in the table · Guide: How to read Medicare Part D prescriber data
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Close to the middle for Part D prescriptions among clinicians listed under Neurological Surgery in Chicago, IL (2024, 39 clinicians with data). Median for this group: 39. Middle half: 14 to 97.
Close to the middle for Part D prescriptions among clinicians listed under Neurological Surgery in Illinois (2024, 103 clinicians with data). Median for this group: 45. Middle half: 16 to 144.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
Practice Location & Contact Primary Location
1725 W Harrison St Ste 855
Chicago, IL 606125113
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Neurological Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
30-day fills
47 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
$487 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 – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $632.96 across 5 records.
By nature of payment
- Food and Beverage: $632.96 across 5 records.
Reporting-company totals
- Medtronic, Inc.: $527.37 across 4 records.
- icotec Medical Inc.: $105.59 across 1 record.
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).
NPI first issued
2023
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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; Medicare.gov, “Does your provider accept Medicare as full payment?”
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.
Enrolled in Medicare (PECOS)
Dr. Cannon 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. Cannon 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 Chicago and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Neurological Surgery in Chicago, IL (2024, 39 clinicians with data). Median for this group: 39. Middle half: 14 to 97.
Close to the middle for clinicians listed under Neurological Surgery in Illinois (2024, 103 clinicians with data). Median for this group: 45. Middle half: 16 to 144.
Part D drug cost
Close to the middle for clinicians listed under Neurological Surgery in Chicago, IL (2024, 39 clinicians with data). Median for this group: $443. Middle half: $116 to $869.
Close to the middle for clinicians listed under Neurological Surgery in Illinois (2024, 103 clinicians with data). Median for this group: $495. Middle half: $197 to $1,207.
171 active clinicians are listed under Neurological Surgery with a practice address in Chicago, IL (374 in Illinois).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Chicago
21.1% of these 171 clinicians have the CMS telehealth indicator.
44.4% of these 171 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part D prescriptions
CMS data for Part D prescriptions are available for 2024 only.
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30-day fills
CMS data for 30-day fills are available for 2024 only.
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Part D drug cost
CMS data for Part D drug cost are available for 2024 only.
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 41% from $1,077.19 in 2023 to $632.96 in 2025.
- 2023: $1,077.19
- 2024: $569.24
- 2025: $632.96
Sources: CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · 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 – December 31, 2025): fewer than 11 records totaling $632.96.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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AQUAMANTYS(TM) | General | $168.72 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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CATALYFT PL EXPANDABLE INTERBODY SYSTEM | General | $165.95 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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INCEPTIV | General | $142.89 |
| icotec Medical Inc. |
Food and Beverage
In-kind items and services
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VADER PEDICLE SYSTEM 6.0, SCREW, Carbon/PEEK, POLYAX., FEN., O 5.5 X 45 MM | General | $105.59 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
INCEPTIV | General | $49.81 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
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 |
|---|---|---|---|---|---|
| Oxycodone Hcl | Oxycodone Hcl | 13 | 58 | $43.76 | 13 |
| Cephalexin | Cephalexin | 12 | 119 | $104.71 | 12 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 11 | 49 | $64.94 | 11 |
| Celecoxib | Celecoxib | 11 | 75 | $273.24 | 11 |
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
Self-certified to NPPES: 2023-06-06NUCC Taxonomy Code: 207T00000X
A neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and rehabilitation) of disorders of the central, peripheral, and autonomic nervous systems, including their supporting structures and vascular supply; the evaluation and treatment of pathological processes which modify function or activity of the nervous system; and the operative and non-operative management of pain. A neurological surgeon treats patients with disorders of the nervous system; disorders of the brain, meninges, skull, and their blood supply, including the extracranial carotid and vertebral arteries; disorders of the pituitary gland; disorders of the spinal cord, meninges, and vertebral column, including those which may require treatment by spinal fusion or instrumentation; and disorders of the cranial and spinal nerves throughout their distribution.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSORDER AND REFERRING ONLY - NEUROSURGERY
I20230830000361
IL
9739542317
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Acute Care
Advanced Practice Nurse
Nurse Practitioner
Nurse Practitioner
Neurological Surgery
Doctor of Medicine (M.D.)
Physical Medicine & Rehabilitation
Doctor of Medicine (M.D.)
Neurological Surgery
Doctor of Medicine (M.D.)
Nurse Practitioner
Nurse Practitioner
Career & Practice History
NPI enumerated June 06, 2023.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from June 2023 to November 2026.
NPI Administrative Meta
Other Neurological Surgery Specialists in Chicago
- Dr. Kenji Muro, MD
- Dr. Sergey Neckrysh, MD
- Dr. William Gibson, MD, PhD
- Dr. Valentina Vasenina, MD
- Dr. Richard Crowley, MD
- Dr. Sepideh Amin-Hanjani, MD
Mailing Address
1725 W Harrison St Ste 855
Chicago, IL 606125113
Phone: 3129426644