Dr. Randall James Brenneman, MD
- Medicare services, 2024
- 4,087
- Medicare patients, 2024
- 157
- Part D claims, 2024
- 295
- Publications
- 46
- Clinical trials
- 2
- Practice address
- 12855 N Forty Dr, Saint Louis, MO 63141
- Practice phone
- Call (314) 567-6071
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Neurosurgery of St Louis
Saint Louis, Missouri
Find Dr. Brenneman's 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. Randall James Brenneman is a radiation oncologist in Saint Louis, Missouri
Dr. Brenneman practices at Neurosurgery of St Louis in Saint Louis, Missouri.
Dr. Brenneman's NPI, 1366899841, was assigned on May 16, 2016. Dr. Brenneman graduated from University of Miami, Lm Miller School of Medicine in 2016. Dr. Brenneman holds Illinois license 036156598.
- NPI
- 1366899841NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2365737939
- NPI enumeration date
- May 16, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 567-6071
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Randall James Brenneman practices at Neurosurgery of St Louis in Saint Louis, Missouri
Dr. Brenneman's primary practice is Neurosurgery of St Louis, at 12855 N Forty Dr, Saint Louis, MO 63141 in Saint Louis County. The practice phone is (314) 567-6071.
- Neurosurgery of St Louis12855 N Forty Dr, Saint Louis, MO 63141 · Saint Louis CountyPhone(314) 567-6071
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Randall James Brenneman is affiliated with 7 sites of care and 4 medical groups
Dr. Brenneman's primary practice is Neurosurgery of St Louis in Saint Louis, Missouri. Dr. Brenneman is also affiliated with Missouri Baptist Medical Center. The medical group on file is WashU Medicine Psychiatry. Dmand AI also links Dr. Brenneman to 3 more hospitals, 3 medical groups and 2 group practices and clinics, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Randall James Brenneman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Brenneman practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Neurosurgery of St Louis | Available with a free account |
| +6 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Randall James Brenneman is one of 117 radiation oncologists in Missouri
Radiation oncology is Dr. Brenneman's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dmand AI has Dr. Brenneman's licenses on file in 2 states: Illinois and Missouri.
Specialties and state licenses
- Radiation oncology, IllinoisPrimary
- Missouri license
Radiation oncologists near Dr. Brenneman
Counts of radiation oncologists 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. Randall James Brenneman billed Medicare for 4,087 services in 2024
CMS data shows 4,087 Medicare services from Dr. Brenneman across 21 procedure codes in 2024, for 157 Medicare patients. Medicare paid $732,313 for them.
Dr. Brenneman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 1,2242024: 2,682119%
- Other services
- 2023: 322024: 1,2043663%
- Office and hospital visits
- 2023: 772024: 201161%
Where Dr. Brenneman's Medicare services took place, 2024
- In an office3,93996%
- In a facility1484%
Dr. Brenneman compared with the Missouri median for radiation oncologists, 2024
- Dr. Brenneman
- Missouri median
- Medicare services
- 4,087vs 1,2103.4 times
- Medicare patients
- 157vs 18113% below
- Part D claims
- 154vs 602.6 times
Medians across 117 radiation oncologists in Missouri with Dmand AI profiles that report each measure.
Dr. Brenneman's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Brenneman and other radiation oncologists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Randall James Brenneman treated 157 Medicare patients in 2024, average age 75
CMS counts 157 Medicare patients who saw Dr. Brenneman in 2024. The largest group is 75 to 84, with 71 patients. 75% of them have cancer, and 75% have high blood pressure. 11% are also on Medicaid. Their average risk score is 1.74, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Brenneman's median patient age at 72, with 14% women.
Dr. Brenneman's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Brenneman's Medicare patients by sex, 2024
- Women6743%
- Men9057%
Chronic conditions among Dr. Brenneman's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- COPD44%
- Ischemic heart disease34%
- Chronic kidney disease32%
- Anxiety31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Brenneman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women14%
- Men86%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Randall James Brenneman wrote 295 Medicare Part D claims in 2024
In 2024, Dr. Brenneman wrote 295 Medicare Part D claims for 108 patients. 91% of them were for generic drugs. CMS names the drug for 154 of them, across 7 drugs with 11 or more claims each, at $46,333 in total drug cost. In 2023, CMS named 207 claims across 8 drugs.
Dr. Brenneman's Part D claims by kind of drug, 2024
- Generic267 claims91%
- Brand-name28 claims9%
Dr. Brenneman's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Brenneman's Part D claims, 2024
- Opioids11%33 of 295 claims
- Antibiotics5%14 of 295 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2072024: 15426%
Drugs named by CMS: 7 in 2024, 8 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Randall James Brenneman takes part in Medicare
Dr. Brenneman accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Randall James Brenneman has 46 publications on record
Dmand AI links 46 papers to Dr. Brenneman, published from 2010 to 2025. 2020 was the busiest year, with 8. The most frequent topics are Prostatic Neoplasms, Androgen Antagonists and Brachytherapy. Dr. Brenneman has published most often in Adv Radiat Oncol. Dr. Brenneman's most frequent co-authors are Hiram Alberto Gay, MD, Jeff Michael Michalski, MD and Neal Andruska, MD, PhD.
Dr. Brenneman's papers by year, 2016 to 2025
Topics Dr. Brenneman writes about most
- Prostatic Neoplasms
- Androgen Antagonists
- Brachytherapy
- Carcinoma, Merkel Cell
- Radiotherapy Planning, Computer-Assisted
- Skin Neoplasms
- Magnetic Resonance Imaging
- Prostate
Dr. Brenneman's most frequent co-authors
- Hiram Alberto Gay, MD18 shared papers
- Jeff Michael Michalski, MD16 shared papers
- Neal Andruska, MD, PhD15 shared papers
Recent publications by Dr. Brenneman
Int J Radiat Oncol Biol Phys
Clin Genitourin Cancer
See who Dr. Brenneman researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Brenneman works with, so you can find a warm path to the right radiation oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Randall James Brenneman has worked on 2 clinical trials
Dmand AI links Dr. Brenneman to 2 clinical trials. 1 is still active or recruiting. Conditions studied include Head and Neck Neoplasms, Prostatic Neoplasms and Prostatic Diseases. Washington University School of Medicine sponsors the most, 2.
Conditions in Dr. Brenneman's trials
- Head and Neck Neoplasms
- Prostatic Neoplasms
- Prostatic Diseases
Investigators on the most trials with Dr. Brenneman
- Mackenzie D. Daly, MD1 shared trial
- Comron J. Hassanzadeh, MD, MPH1 shared trial
- Alexander Justin Lin, MD1 shared trial
Recent clinical trials with Dr. Brenneman
A Phase I/II Dose-escalation Study Evaluating the Safety and Efficacy of 21 Gy, 23 Gy and 25 Gy for High Dose Rate (HDR) Prostate Brachytherapy (opens in a new tab)
Palliative Expeditiously Adaptive Quad Shot Radiation Therapy (PEAQ-RT) (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Randall James Brenneman received $9,473 in industry payments from 2021 to 2025
CMS Open Payments shows 35 general payments to Dr. Brenneman from 24 drug and device companies from 2021 to 2025. Consulting fees make up the largest share, 84% of the total. Boston Scientific Corporation paid the most, $8,122.
General payments to Dr. Brenneman by program year, 2021 to 2025
General payments to Dr. Brenneman by kind, 2021 to 2025
- Consulting fees$7,94084%
- Food and beverage$1,13312%
- Travel and lodging$2773%
- Entertainment$1231%
Companies that paid Dr. Brenneman the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Randall James Brenneman graduated from University of Miami, Lm Miller School of Medicine
Dr. Brenneman graduated from University of Miami, Lm Miller School of Medicine in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Randall James Brenneman'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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. Randall James Brenneman
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. Randall James Brenneman's NPI number?
Dr. Randall James Brenneman's NPI number is 1366899841. It was assigned on May 16, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Randall James Brenneman?
Dr. Randall James Brenneman is a radiation oncologist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Randall James Brenneman practice?
Dr. Brenneman practices at 12855 N Forty Dr, Saint Louis, MO 63141. Dr. Brenneman's primary practice is Neurosurgery of St Louis in Saint Louis, Missouri. Dmand AI also links Dr. Brenneman to 3 hospitals, 3 medical groups and 2 group practices and clinics.
What is Dr. Randall James Brenneman's office phone number?
The practice phone on file for Dr. Brenneman is (314) 567-6071.
What is Dr. Randall James Brenneman's medical license number?
Dr. Brenneman holds Illinois license 036156598, one of the licenses on file in 2 states.
Which states has Dr. Randall James Brenneman been licensed in?
Dmand AI has state licenses on file for Dr. Brenneman in Illinois and Missouri.
Which hospitals is Dr. Randall James Brenneman affiliated with?
Dr. Brenneman is affiliated with Missouri Baptist Medical Center. Dmand AI links Dr. Brenneman to 3 more hospitals.
What medical group is Dr. Randall James Brenneman part of?
Dr. Brenneman is linked to WashU Medicine Psychiatry. Dmand AI links Dr. Brenneman to 3 more medical groups.
Does Dr. Randall James Brenneman accept Medicare?
Yes. CMS data shows Dr. Brenneman billed Medicare for 4,087 services in 2024, and Dr. Brenneman accepts Medicare assignment.
How many Medicare patients does Dr. Randall James Brenneman see?
CMS counts 157 Medicare patients who saw Dr. Brenneman in 2024, with an average age of 75.
Show 7 more questionsShow fewer questions
What services does Dr. Randall James Brenneman bill to Medicare?
In 2024, Dr. Brenneman's most billed Medicare services were radiation oncology (77014), medicare service (G6015) and radiation oncology (77336).
Where did Dr. Randall James Brenneman go to medical school?
Dr. Brenneman graduated from University of Miami, Lm Miller School of Medicine in 2016.
What drugs does Dr. Randall James Brenneman prescribe most?
In 2024 Medicare Part D data, Dr. Brenneman's most prescribed drugs by claims were Tamsulosin HCl, Lidocaine HCl Viscous and Memantine HCl.
Has Dr. Randall James Brenneman received payments from drug or device companies?
CMS Open Payments shows $9,473 in general payments to Dr. Brenneman from 24 companies from 2021 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Randall James Brenneman been practicing?
Dr. Brenneman graduated from medical school in 2016, 10 years ago.
Does Dr. Randall James Brenneman do research?
Dmand AI links 46 publications to Dr. Brenneman, published from 2010 to 2025. Dr. Brenneman has worked on 2 clinical trials.
Who does Dr. Randall James Brenneman publish with?
Dr. Brenneman's most frequent co-authors are Hiram Alberto Gay, MD (18 shared papers), Jeff Michael Michalski, MD (16 shared papers) and Neal Andruska, MD, PhD (15 shared papers).
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