Dr. Mark Viktor Silver , MD
Neurological Surgery • Sherman, TX
300 N Highland Ave Ste 310
Sherman, TX 750927389
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. Mark Silver is listed in NPPES under Neurological Surgery.
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NPI assigned on February 11, 2006; this date does not establish years in practice.
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Published CMS data list 460 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99214 — Established patient outpatient office visit: 175 service units.
- 99204 — New patient outpatient office visit: 119 service units.
- 99215 — Established patient outpatient office visit: 25 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® 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 10 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 845 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:
- Mupirocin — 154 prescription fills, including refills.
- Clindamycin Hcl — 144 prescription fills, including refills.
- Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) — 143 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 12 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 65% of clinicians listed under Neurological Surgery in Texas (2024, 377 clinicians with data). Median for this group: 253. Middle half: 110 to 558.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 663 in 2020 to 460 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
300 N Highland Ave Ste 310
Sherman, TX 750927389
CMS Doctors and Clinicians lists 1 group name: Mark Viktor Silver, Pllc. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
1994
What Public CMS Data Show
Neurological Surgery: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
191 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 – by Provider, 2024.
Medicare-allowed amount
About $75,453 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 – by Provider and Service, 2024.
Paid by Medicare
About $57,395 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 – by Provider and Service, 2024.
30-day fills
847 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
$4,769 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: $345.09 across 7 records.
By nature of payment
- Food and Beverage: $345.09 across 7 records.
Reporting-company totals
- Abbott Laboratories: $345.09 across 7 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
32 years (graduated 1994)
CMS Doctors and Clinicians data list 1994 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.
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; 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. Silver 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. Silver 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 Sherman and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 65% of clinicians listed under Neurological Surgery in Texas (2024, 377 clinicians with data). Median for this group: 253. Middle half: 110 to 558.
Too few clinicians listed under Neurological Surgery in Sherman have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 60% of clinicians listed under Neurological Surgery in Texas (2024, 377 clinicians with data). Median for this group: $49,359. Middle half: $14,821 to $116,053.
Too few clinicians listed under Neurological Surgery in Sherman have Medicare Part B data for 2024 to compare.
Paid by Medicare
Close to the middle for clinicians listed under Neurological Surgery in Texas (2024, 377 clinicians with data). Median for this group: $38,942. Middle half: $11,262 to $91,042.
Too few clinicians listed under Neurological Surgery in Sherman have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 95% of clinicians listed under Neurological Surgery in Texas (2024, 289 clinicians with data). Median for this group: 120. Middle half: 41 to 260.
Too few clinicians listed under Neurological Surgery in Sherman have Medicare Part D data for 2024 to compare.
Part D drug cost
A higher Part D drug cost than 80% of clinicians listed under Neurological Surgery in Texas (2024, 289 clinicians with data). Median for this group: $1,175. Middle half: $431 to $3,196.
Too few clinicians listed under Neurological Surgery in Sherman have Medicare Part D data for 2024 to compare.
4 active clinicians are listed under Neurological Surgery with a practice address in Sherman, TX (669 in Texas).
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 decreased 31% from 663 in 2020 to 460 in 2024.
- 2020: 663
- 2021: 849
- 2022: 678
- 2023: 707
- 2024: 460
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Medicare-allowed amount
Medicare-allowed amount decreased 55% from $167,357 in 2020 to $75,453 in 2024.
- 2020: $167,357
- 2021: $233,481
- 2022: $177,816
- 2023: $197,806
- 2024: $75,453
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Paid by Medicare
Paid by Medicare decreased 56% from $131,093 in 2020 to $57,395 in 2024.
- 2020: $131,093
- 2021: $182,795
- 2022: $137,357
- 2023: $153,295
- 2024: $57,395
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 18% from 716 in 2020 to 845 in 2024.
- 2020: 716
- 2021: 1,086
- 2022: 1,079
- 2023: 914
- 2024: 845
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30-day fills
30-day fills increased 18% from 718 in 2020 to 847 in 2024.
- 2020: 718
- 2021: 1,089
- 2022: 1,091
- 2023: 914
- 2024: 847
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Part D drug cost
Part D drug cost decreased 12% from $5,420 in 2020 to $4,769 in 2024.
- 2020: $5,420
- 2021: $7,170
- 2022: $7,703
- 2023: $6,047
- 2024: $4,769
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Industry payments (Open Payments)
Industry payments (Open Payments) decreased 83% from $2,013.12 in 2021 to $345.09 in 2025.
- 2021: $2,013.12
- 2022: $3,622.34
- 2023: $1,323.45
- 2024: $1,173.12
- 2025: $345.09
Sources: CMS Medicare Physician & Other Practitioners (2024), 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 $345.09.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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PROCLAIM | General | $101.41 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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PROCLAIM | General | $84.13 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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ETERNA | General | $83.46 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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PROCLAIM | General | $23.74 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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PENTA | General | $22.68 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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ETERNA | General | $17.93 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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PROCLAIM | General | $11.74 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 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 – by Provider and Service data, 2017–2024; 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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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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175 | 111 | $330.00 | $122.32 |
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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
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119 | 119 | $508.00 | $159.61 |
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99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
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25 | 24 | $446.00 | $172.62 |
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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
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24 | 20 | $224.00 | $86.57 |
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64636
Destruction of lower or sacral spinal facet joint nerves using imaging guidance, each additional facet joint
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23 | 12 | $570.00 | $55.63 |
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64493
Injection of lower or sacral spine facet joint using imaging guidance, single level
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22 | 15 | $1006.91 | $129.00 |
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64494
Injection of lower or sacral spine facet joint using imaging guidance, second level
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22 | 15 | $436.05 | $72.54 |
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63047
Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment
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20 | 19 | $2695.00 | $823.31 |
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22853
Insertion of cage or mesh device to spine bone and disc space during spine fusion
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16 | 11 | $501.00 | $244.77 |
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64635
Destruction of lower or sacral spinal facet joint nerves using imaging guidance, single facet joint
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14 | 12 | $1237.00 | $183.19 |
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 |
|---|---|---|---|---|---|
| Mupirocin | Mupirocin | 154 | 1,694 | $1,292.32 | 127 |
| Clindamycin Hcl | Clindamycin Hcl | 144 | 720 | $815.12 | 109 |
| Sulfamethoxazole-Trimethoprim | Sulfamethoxazole/Trimethoprim | 143 | 1,015 | $522.33 | 116 |
| Tizanidine Hcl | Tizanidine Hcl | 137 | 1,029 | $483.69 | 99 |
| Hydrocodone-Acetaminophen | Hydrocodone/Acetaminophen | 98 | 686 | $798.48 | 68 |
| Oxycodone-Acetaminophen | Oxycodone Hcl/Acetaminophen | 49 | 342 | $403.73 | 41 |
| Prednisone | Prednisone | 34 | 250 | $40.88 | 23 |
| Gabapentin | Gabapentin | 24 | 771 | $212.17 | 18 |
| Tramadol Hcl | Tramadol Hcl | 19 | 152 | $52.17 | 15 |
| Amoxicillin | Amoxicillin | 15 | 103 | $20.47 | 13 |
| Levofloxacin | Levofloxacin | 14 | 136 | $54.17 | — |
| Ciprofloxacin Hcl | Ciprofloxacin Hcl | 14 | 107 | $73.45 | — |
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: 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.
NUCC 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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NEUROSURGERY
I20120723000912
TX
2769447325
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
Mark Viktor Silver, Pllc
600 E Taylor St, Sheman, TX 750902880
Phone: 9039577246
Mark Viktor Silver, Pllc
2719 Virginia Pkwy, Mckinney, TX 750714917
Phone: 4696252500
Mark Viktor Silver, Pllc
4101 Wesley St, Greenville, TX 754015635
Phone: 9039577246
Mark Viktor Silver, Pllc
1313 N Travis St, Sherman, TX 750925165
Phone: 9039570003
Career & Practice History
NPI enumerated February 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 August 2026.
NPI Administrative Meta
Other Neurological Surgery Specialists in Sherman
Healthcare providers in ShermanMailing Address
300 N Highland Ave Ste 310
Sherman, TX 750927389
Phone: 9039570003