Dr. Mark K Lyons , MD
Neurological Surgery โข Phoenix, AZ
5777 E Mayo Blvd
Phoenix, AZ 85054
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 Lyons is listed in NPPES under Neurological Surgery.
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NPI assigned on December 6, 2005; this date does not establish years in practice.
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Published CMS data list 457 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:
- 99205 โ New patient outpatient office visit: 114 service units.
- 99215 โ Established patient outpatient office visit: 93 service units.
- 99204 โ New patient outpatient office visit: 74 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 10 records in the table ยท Guide: How to read Medicare Part B data
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Published CMS data list 128 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:
- Cephalexin โ 60 prescription fills, including refills.
- Oxycodone Hcl โ 56 prescription fills, including refills.
- Clindamycin Hcl โ 12 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 65% of clinicians listed under Neurological Surgery in Phoenix, AZ (2024, 44 clinicians with data). Median for this group: 226. Middle half: 78 to 528.
More Medicare Part B services than 65% of clinicians listed under Neurological Surgery in Arizona (2024, 109 clinicians with data). Median for this group: 264. Middle half: 115 to 538.
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 468 in 2020 to 457 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2020โ2024.
Practice Location & Contact Primary Location
5777 E Mayo Blvd
Phoenix, AZ 85054
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.
Medicare patients
363 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 $120,751 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 $93,182 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
128 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
$686 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 2024
All general payments: $338.69 across 3 records.
By nature of payment
- Food and Beverage: $338.69 across 3 records.
Reporting-company totals
- Medtronic, Inc.: $170.30 across 1 record.
- Boston Scientific Corporation: $168.39 across 2 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 2024 (published June 30, 2026).
NPI first issued
2005
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, 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.
Enrolled in Medicare (PECOS)
Dr. Lyons 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. Lyons 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 Phoenix and Arizona
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 Phoenix, AZ (2024, 44 clinicians with data). Median for this group: 226. Middle half: 78 to 528.
More Medicare Part B services than 65% of clinicians listed under Neurological Surgery in Arizona (2024, 109 clinicians with data). Median for this group: 264. Middle half: 115 to 538.
Medicare-allowed amount
A higher Medicare-allowed amount than 65% of clinicians listed under Neurological Surgery in Phoenix, AZ (2024, 44 clinicians with data). Median for this group: $48,915. Middle half: $9,023 to $143,787.
A higher Medicare-allowed amount than 70% of clinicians listed under Neurological Surgery in Arizona (2024, 109 clinicians with data). Median for this group: $48,065. Middle half: $12,102 to $124,632.
Paid by Medicare
A higher Medicare payment amount than 65% of clinicians listed under Neurological Surgery in Phoenix, AZ (2024, 44 clinicians with data). Median for this group: $38,608. Middle half: $6,926 to $112,131.
A higher Medicare payment amount than 70% of clinicians listed under Neurological Surgery in Arizona (2024, 109 clinicians with data). Median for this group: $38,027. Middle half: $9,309 to $96,756.
Medicare Part D prescriptions
More Part D prescriptions than 80% of clinicians listed under Neurological Surgery in Phoenix, AZ (2024, 22 clinicians with data). Median for this group: 53. Middle half: 14 to 70.
More Part D prescriptions than 70% of clinicians listed under Neurological Surgery in Arizona (2024, 62 clinicians with data). Median for this group: 53. Middle half: 20 to 135.
Part D drug cost
A higher Part D drug cost than 70% of clinicians listed under Neurological Surgery in Phoenix, AZ (2024, 22 clinicians with data). Median for this group: $430. Middle half: $121 to $940.
Close to the middle for clinicians listed under Neurological Surgery in Arizona (2024, 62 clinicians with data). Median for this group: $543. Middle half: $203 to $3,415.
84 active clinicians are listed under Neurological Surgery with a practice address in Phoenix, AZ (198 in Arizona).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Phoenix
34.5% of these 84 clinicians have the CMS telehealth indicator.
53.6% of these 84 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 B services
Medicare Part B services stayed about the same: 468 in 2020 and 457 in 2024.
- 2020: 468
- 2021: 552
- 2022: 587
- 2023: 527
- 2024: 457
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Medicare-allowed amount
Medicare-allowed amount increased 57% from $76,916 in 2020 to $120,751 in 2024.
- 2020: $76,916
- 2021: $102,618
- 2022: $128,971
- 2023: $105,794
- 2024: $120,751
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Paid by Medicare
Paid by Medicare increased 64% from $56,872 in 2020 to $93,182 in 2024.
- 2020: $56,872
- 2021: $78,728
- 2022: $98,247
- 2023: $81,233
- 2024: $93,182
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 64% from 78 in 2020 to 128 in 2024.
- 2020: 78
- 2021: 86
- 2022: 106
- 2023: 75
- 2024: 128
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30-day fills
30-day fills increased 64% from 78 in 2020 to 128 in 2024.
- 2020: 78
- 2021: 88
- 2022: 106
- 2023: 75
- 2024: 128
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Part D drug cost
Part D drug cost went from $531 in 2020 to $686 in 2024.
- 2020: $531
- 2021: $699
- 2022: $680
- 2023: $422
- 2024: $686
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $84.40 in 2019 to $338.69 in 2024.
- 2019: $84.40
- 2021: $17.36
- 2022: $32.19
- 2024: $338.69
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2024), CMS Doctors and Clinicians, 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 2024 (payments made January 1 โ December 31, 2024): fewer than 11 records totaling $338.69.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
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UNID_PASS | General | $170.30 |
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
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โ | General | $88.63 |
| Boston Scientific Corporation |
Food and Beverage
In-kind items and services
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โ | General | $79.76 |
Source: CMS Open Payments, program year 2024, 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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99205
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
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114 | 114 | $750.00 | $212.94 |
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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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93 | 82 | $545.00 | $171.56 |
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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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74 | 74 | $565.00 | $161.52 |
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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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56 | 54 | $340.00 | $119.66 |
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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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38 | 38 | $16220.70 | $1041.52 |
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63048
Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment
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32 | 22 | $3261.33 | $196.96 |
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61886
Insertion of brain neurostimulator pulse device with connection to 2 or more electrode arrays
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15 | 15 | $4570.00 | $856.36 |
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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
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12 | 12 | $365.00 | $105.57 |
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99232
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
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12 | 12 | $280.00 | $75.61 |
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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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11 | 11 | $240.00 | $87.90 |
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 |
|---|---|---|---|---|---|
| Cephalexin | Cephalexin | 60 | 299 | $272.50 | 57 |
| Oxycodone Hcl | Oxycodone Hcl | 56 | 262 | $279.19 | 45 |
| Clindamycin Hcl | Clindamycin Hcl | 12 | 69 | $134.57 | โ |
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: 2026-02-25NUCC 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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NEUROSURGERY
I20091215000636
AZ
6901962984
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.
Internal Medicine
Bachelor of Medicine, Bachelor of Surgery (M.B.B.S.)
Psychiatry & Neurology - Neurology
Doctor of Medicine (M.D.)
Nurse Anesthetist, Certified Registered
Registered Nurse
Radiology - Diagnostic Radiology
Doctor of Medicine (M.D.)
Orthopaedic Surgery
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Neurological Surgery (license number reported to NPPES: AZ 20665)
Registered at 5777 E MAYO BLVD, PHOENIX, AZ 85054 (Tel: 4803018000)
Neurological Surgery (license number reported to NPPES: MN 30962)
NPI status registered as active in NPPES database
Registered at 5777 E MAYO BLVD, PHOENIX, AZ 850544502 (Tel: 4803018000)
Registered at 5777 E MAYO BLVD, PHOENIX, AZ 850544502 (Tel: 4803018000)
Recorded as MARK LYONS, M.D.
Neurological Surgery (license number reported to NPPES: AZ 20665)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Neurological Surgery Specialists in Phoenix
- Dr. Andrew Ducruet, MD
- Dr. Mazen Zaher, DO
- Dr. Byron Willis, MD
- Dr. Jose Menendez, MD
- Dr. Randall Porter, MD
- Dr. Felipe Albuquerque, MD
Mailing Address
5777 E Mayo Blvd
Phoenix, AZ 850544502
Phone: 4803018000