Dr. L. Keith Simmons, DO
- Medicare services, 2022
- 2,019
- Part D claims, 2019
- 12
- Industry payments
- $582
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 9709 E 79th St South, Tulsa, OK 74133
- Practice phone
- Call (918) 994-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Invictus Healthcare System
Physician office · Tulsa, Oklahoma
Find Dr. Simmons' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. L. Keith Simmons is a neurosurgeon in Long Beach, California
Dr. Simmons practices at Invictus Healthcare System in Tulsa, Oklahoma.
Dr. Simmons' NPI, 1447264205, was assigned on July 28, 2006. Dr. Simmons graduated from Oklahoma State University College of Osteopathic Medicine in 1989. Dr. Simmons holds Oklahoma license 2902.
- NPI
- 1447264205NPI Registry (opens in a new tab)
- NPI enumeration date
- July 28, 2006
- NPI status
- Active
- Practice phone
- (918) 994-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. L. Keith Simmons practices in Tulsa and Long Beach
Dr. Simmons' primary practice is Invictus Healthcare System, at 9709 E 79th St South, Tulsa, OK 74133. The practice phone is (918) 994-4000. The NPI Registry lists Dr. Simmons' practice address as 2801 Atlantic Ave, Long Beach, CA 90806.
- Invictus Healthcare SystemPrimary9709 E 79th St South, Tulsa, OK 74133Phone(918) 994-4000
- NPI Registry address2801 Atlantic Ave, Long Beach, CA 90806 · Los Angeles CountyPhone(918) 994-4000
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. L. Keith Simmons is affiliated with 1 site of care and 1 medical group
Dr. Simmons' primary practice is Invictus Healthcare System in Tulsa, Oklahoma. The medical group on file is MPOWERHealth (MPower Health - San Antonio).
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. L. Keith Simmons' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Simmons practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Invictus Healthcare System | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. L. Keith Simmons is one of 846 neurosurgeons in California
Neurological surgery is Dr. Simmons' primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Simmons is licensed in Oklahoma.
Specialties and state licenses
- Neurological surgery, OklahomaPrimary
Neurosurgeons near Dr. Simmons
Counts of neurosurgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. L. Keith Simmons billed Medicare for 2,019 services in 2022
CMS data shows 2,019 Medicare services from Dr. Simmons across 15 procedure codes in 2022. Medicare paid $89,407 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Simmons' Medicare services by type, 2021 to 2022
- 2021
- 2022
- Tests and treatments
- 2021: 1,5982022: 1,5543%
- Other services
- 2021: 3882022: 46520%
Dr. Simmons compared with the California median for neurosurgeons, 2022
- Dr. Simmons
- California median
- Medicare services
- 2,019vs 2169.3 times
- Part D claims
- 12vs 2654% below
Medians across 679 neurosurgeons in California with Dmand AI profiles that report each measure.
Dr. Simmons' most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Simmons?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Simmons and other neurosurgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. L. Keith Simmons' patients have a median age of 64
Across all payers, Dmand AI patient panel data puts Dr. Simmons' median patient age at 64, with 47% women.
Dr. Simmons' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women47%
- Men53%
Source: Dmand AI Patient Panel Data
Dr. L. Keith Simmons wrote 12 Medicare Part D claims in 2019
In 2019, Dr. Simmons wrote 12 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $123 in total drug cost.
Dr. Simmons' most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. L. Keith Simmons received $582 in industry payments from 2017 to 2019
CMS Open Payments shows 45 general payments to Dr. Simmons from 2 drug and device companies from 2017 to 2019. Food and beverage make up the largest share, 100% of the total. Sunovion Pharmaceuticals Inc. paid the most, $563.
General payments to Dr. Simmons by program year, 2017 to 2019
Companies that paid Dr. Simmons the most, 2017 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. L. Keith Simmons graduated from Oklahoma State University College of Osteopathic Medicine
Dr. Simmons graduated from Oklahoma State University College of Osteopathic Medicine in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. L. Keith Simmons's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. L. Keith Simmons
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. L. Keith Simmons' NPI number?
Dr. L. Keith Simmons' NPI number is 1447264205. It was assigned on July 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. L. Keith Simmons?
Dr. L. Keith Simmons is a neurosurgeon in Long Beach, California. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. L. Keith Simmons practice?
Dr. Simmons practices at 9709 E 79th St South, Tulsa, OK 74133. Dr. Simmons also practices at 2801 Atlantic Ave, Long Beach, CA 90806. Dr. Simmons' primary practice is Invictus Healthcare System in Tulsa, Oklahoma.
What is Dr. L. Keith Simmons' office phone number?
The practice phone on file for Dr. Simmons is (918) 994-4000.
What is Dr. L. Keith Simmons' medical license number?
Dr. Simmons holds Oklahoma license 2902.
What medical group is Dr. L. Keith Simmons part of?
Dr. Simmons is linked to MPOWERHealth (MPower Health - San Antonio).
Does Dr. L. Keith Simmons accept Medicare?
Yes. CMS data shows Dr. Simmons billed Medicare for 2,019 services in 2022.
What services does Dr. L. Keith Simmons bill to Medicare?
In 2022, Dr. Simmons' most billed Medicare services were medicare service (G0453), nerve and brain test (95957) and nerve and brain test (95938).
Where did Dr. L. Keith Simmons go to medical school?
Dr. Simmons graduated from Oklahoma State University College of Osteopathic Medicine in 1989.
What drugs does Dr. L. Keith Simmons prescribe most?
In 2019 Medicare Part D data, Dr. Simmons' most prescribed drugs by claims were Lamotrigine.
Has Dr. L. Keith Simmons received payments from drug or device companies?
CMS Open Payments shows $582 in general payments to Dr. Simmons from 2 companies from 2017 to 2019. The largest total came from Sunovion Pharmaceuticals Inc.
How long has Dr. L. Keith Simmons been practicing?
Dr. Simmons graduated from medical school in 1989, 37 years ago.
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