Dr. L. Keith Simmons , DO
Neurological Surgery • Tulsa, OK
9709 E 79th St S
Tulsa, OK 741334566
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. L. Simmons is listed in NPPES under Neurological Surgery.
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NPI assigned on July 28, 2006; this date does not establish years in practice.
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Published CMS data list 2,019 Original Medicare Part B services in 2022.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2022. Published rows only; this is not a quality measure.
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Published Part B service records, 2022:
- G0453 — Continuous intraoperative neurophysiology monitoring, from outside the operating room (remote or nearby), per patient, (attention directed exclusively to one patient) each 15 minutes (list in addition to primary procedure): 465 service units.
- 95957 — Measurement of brain wave activity (eeg), digital analysis: 352 service units.
- 95938 — Placement of skin electrodes and measurement of stimulated sites on arms and legs: 320 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2022. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2021 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2022). CPT notice
See all 15 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 12 Medicare Part D prescriptions, including refills, in 2019.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2019. Published rows only; this is not a quality measure.
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Published Part D records, 2019:
- Lamotrigine — 12 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2019. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See the full table · Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 1,544 in 2018 to 2,019 in 2022.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2018–2022.
Practice Location & Contact Primary Location
9709 E 79th St S
Tulsa, OK 741334566
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-allowed amount
About $112,025 in 2022
The total amount Medicare approved for these services in 2022. 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, 2022.
Paid by Medicare
About $89,407 in 2022
The part of the Medicare-allowed amount that Medicare itself paid in 2022, 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, 2022.
30-day fills
12 standardized 30-day fills in 2019
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
$123 in 2019
The total cost of these prescriptions in 2019, 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, 2019.
Open Payments general payments, program year 2019
All general payments: $158.90 across 13 records.
By nature of payment
- Food and Beverage: $158.90 across 13 records.
Reporting-company totals
- Sunovion Pharmaceuticals Inc.: $158.90 across 13 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 2019 (published June 30, 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.
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. Simmons 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. Simmons 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 Tulsa and Oklahoma
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Simmons are from 2022.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Dr. Simmons are from 2019.
29 active clinicians are listed under Neurological Surgery with a practice address in Tulsa, OK (99 in Oklahoma).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Tulsa
13.8% of these 29 clinicians have the CMS telehealth indicator.
65.5% of these 29 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 increased 31% from 1,544 in 2018 to 2,019 in 2022.
- 2018: 1,544
- 2019: 1,252
- 2020: 1,072
- 2021: 1,986
- 2022: 2,019
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Medicare-allowed amount
Medicare-allowed amount increased 64% from $68,444 in 2018 to $112,025 in 2022.
- 2018: $68,444
- 2019: $48,937
- 2020: $60,458
- 2021: $114,680
- 2022: $112,025
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Paid by Medicare
Paid by Medicare increased 65% from $54,249 in 2018 to $89,407 in 2022.
- 2018: $54,249
- 2019: $37,793
- 2020: $48,386
- 2021: $91,956
- 2022: $89,407
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Medicare Part D prescriptions
Medicare Part D prescriptions decreased 87% from 90 in 2013 to 12 in 2019.
- 2013: 90
- 2015: 17
- 2019: 12
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30-day fills
30-day fills decreased 89% from 106 in 2013 to 12 in 2019.
- 2013: 106
- 2015: 21
- 2019: 12
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Part D drug cost
Part D drug cost decreased 98% from $7,917 in 2013 to $123 in 2019.
- 2013: $7,917
- 2015: $174
- 2019: $123
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2019 only.
Sources: CMS Medicare Physician & Other Practitioners (2022), CMS Medicare Part D Prescribers (2019), CMS Open Payments (2019), 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 2019 (payments made January 1 – December 31, 2019): 13 records totaling $158.90.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Sunovion Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
APTIOM | General | $17.18 |
| Sunovion Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
APTIOM | General | $16.96 |
| Sunovion Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
APTIOM | General | $16.54 |
| Sunovion Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
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APTIOM | General | $14.50 |
| Sunovion Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
APTIOM | General | $14.29 |
| Sunovion Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
APTIOM | General | $13.84 |
| Sunovion Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
APTIOM | General | $12.71 |
| Sunovion Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
APTIOM | General | $12.68 |
| Sunovion Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
APTIOM | General | $12.29 |
| Sunovion Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
APTIOM | General | $11.71 |
| Sunovion Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
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APTIOM | General | $10.89 |
| Sunovion Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
APTIOM | General | $3.24 |
| Sunovion Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
APTIOM | General | $2.07 |
Source: CMS Open Payments, program year 2019, 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 2016–2021 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, 2017–2022; 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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G0453
Continuous intraoperative neurophysiology monitoring, from outside the operating room (remote or nearby), per patient, (attention directed exclusively to one patient) each 15 minutes (list in addition to primary procedure)
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465 | 114 | $101.70 | $30.96 |
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95957
Measurement of brain wave activity (eeg), digital analysis
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352 | 348 | $248.13 | $98.03 |
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95938
Placement of skin electrodes and measurement of stimulated sites on arms and legs
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320 | 317 | $143.61 | $43.66 |
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95886
Needle measurement of electrical activity in arm or leg muscles, complete study
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166 | 83 | $143.31 | $43.65 |
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95870
Needle measurement of electrical activity in arm, leg, trunk or head muscles, limited study
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145 | 79 | $62.07 | $18.72 |
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95861
Needle measurement of electrical activity in arm or leg muscles, 2 extremities
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127 | 127 | $259.07 | $78.35 |
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95939
Placement of skin electrodes and measurement of central motor stimulation in arms and legs
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105 | 105 | $372.57 | $113.84 |
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95885
Needle measurement of electrical activity in arm or leg muscles, limited study
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96 | 48 | $58.05 | $17.77 |
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95868
Needle measurement of electrical activity in muscles on both sides of body
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77 | 77 | $196.56 | $59.96 |
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95908
Nerve conduction, 3-4 studies
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56 | 56 | $209.79 | $63.72 |
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95909
Nerve conduction, 5-6 studies
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32 | 32 | $251.18 | $76.29 |
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95887
Needle measurement of electrical activity in trunk or head muscles
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27 | 27 | $123.75 | $36.08 |
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95865
Needle measurement of electrical activity in voice box muscles
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20 | 20 | $261.87 | $79.10 |
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95910
Nerve conduction, 7-8 studies
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16 | 16 | $336.18 | $101.86 |
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95907
Nerve conduction, 1-2 studies
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15 | 15 | $167.88 | $51.22 |
Source: CMS Part B by Provider and Service, 2022; 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 2019.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Lamotrigine | Lamotrigine | 12 | 360 | $123.12 | — |
Source: CMS Part D by Provider and Drug, 2019; 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.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NEUROLOGY
I20050629000336
OK
0941241079
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.
Physician Assistant - Medical
Physician Assistant (Certified)
Physician Assistant - Medical
Physician Assistant (Certified)
Podiatrist - Foot & Ankle Surgery
Doctor of Podiatric Medicine
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Physical Therapist
Doctor of Physical Therapy
Chiropractor
Doctor of Chiropractic
Career & Practice History
NPI enumerated July 28, 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 Tulsa
- Dr. Daniel Harwell, MD
- Dr. Gregory Wilson, DO
- Dr. Thomas Rapacki, MD
- Dr. Daniel Boedeker, MD
- Dr. Brian Hood, MD
- Dr. Shihao Zhang, MD
Mailing Address
9709 E 79th St S
Tulsa, OK 741334566
Phone: 9189944000