Dr. Ronald Eugene Warnick, MD

  • West Chester, OH
  • Neurosurgeon
NPI1588694327PAC ID9739070186
Medicare services, 2024
280
Medicare patients, 2024
158
Part D claims, 2024
404
Publications
61
Clinical trials
1
Practice address
9075 Centre Pointe Dr, West Chester, OH 45069
Practice phone
Call (513) 221-1100
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Mayfield Clinic Inc

West Chester, Ohio

See all 8 affiliations

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Dr. Ronald Eugene Warnick is a neurosurgeon in West Chester, Ohio

Dr. Warnick practices at Mayfield Clinic Inc in West Chester, Ohio.

Dr. Warnick's NPI, 1588694327, was assigned on July 4, 2006. Dr. Warnick graduated from University of Rochester School of Medicine and Dentistry in 1982. Dr. Warnick holds Ohio license 35062072.

NPI and contact details
Medicare PAC ID
9739070186
NPI enumeration date
July 4, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(513) 221-1100
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
70
Medical school graduation
1982

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Ronald Eugene Warnick practices at Mayfield Clinic Inc in West Chester, Ohio

Dr. Warnick's primary practice is Mayfield Clinic Inc, at 9075 Centre Pointe Dr, West Chester, OH 45069 in Butler County. The practice phone is (513) 221-1100.

  • Mayfield Clinic Inc
    9075 Centre Pointe Dr, West Chester, OH 45069 · Butler CountyPhone(513) 221-1100

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Ronald Eugene Warnick is affiliated with 7 sites of care and 1 medical group

Dr. Warnick's primary practice is Mayfield Clinic Inc in West Chester, Ohio. Dr. Warnick is also affiliated with West Chester Hospital. The medical group on file is Mayfield Brain & Spine. Dmand AI also links Dr. Warnick to 4 more hospitals and 1 group practice or clinic, each named with a free account.

See all 8 affiliations for Dr. Warnick

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Ronald Eugene Warnick's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Warnick practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Mayfield Clinic IncAvailable with a free account
+6 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Ronald Eugene Warnick is one of 320 neurosurgeons in Ohio

Neurological surgery is Dr. Warnick's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dmand AI has Dr. Warnick's licenses on file in 2 states: Ohio and Kentucky.

Specialties and state licenses

  • Neurological surgery, OhioPrimaryLicense 35062072 · taxonomy 207T00000X
  • Kentucky licenseLicense 28422

Neurosurgeons near Dr. Warnick

Counts of neurosurgeons with a Dmand AI profile, by place and practice. Each opens the list.

320neurosurgeons in Ohio
2neurosurgeons in West Chester

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Ronald Eugene Warnick billed Medicare for 280 services in 2024

CMS data shows 280 Medicare services from Dr. Warnick across 7 procedure codes in 2024, for 158 Medicare patients. Medicare paid $84,337 for them.

Medicare services, 2024280
Medicare patients158
Paid by Medicare$84,337
Procedure codes7

Dr. Warnick's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Surgery
2023: 1272024: 15522%
Office and hospital visits
2023: 1272024: 1252%

Where Dr. Warnick's Medicare services took place, 2024

  • In an office12545%
  • In a facility15555%

Dr. Warnick compared with the Ohio median for neurosurgeons, 2024

  • Dr. Warnick
  • Ohio median
Medicare services
280vs 20636% above
Medicare patients
158vs 1487% above
Part D claims
357vs 457.9 times

Medians across 273 neurosurgeons in Ohio with Dmand AI profiles that report each measure.

Dr. Warnick'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.

See all procedures by Dr. Warnick

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Ronald Eugene Warnick treated 158 Medicare patients in 2024, average age 73

CMS counts 158 Medicare patients who saw Dr. Warnick in 2024. The largest group is 65 to 74, with 89 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 7% are also on Medicaid. Their average risk score is 1.61, 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. Warnick's median patient age at 68, with 63% women.

Medicare patients, 2024158
Average age73
Average risk score1.61
Also on Medicaid7%

Dr. Warnick's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Warnick's Medicare patients by sex, 2024

  • Women10868%
  • Men5032%

Chronic conditions among Dr. Warnick's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure74%
  3. Arthritis44%
  4. Cancer33%
  5. Anxiety32%
  6. Diabetes32%
  7. Mood disorders29%
  8. Depression28%

Share of Medicare patients with each condition. A patient can have several.

Dr. Warnick's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women63%
  • Men35%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Ronald Eugene Warnick wrote 404 Medicare Part D claims in 2024

In 2024, Dr. Warnick wrote 404 Medicare Part D claims for 102 patients. 99% of them were for generic drugs. CMS names the drug for 357 of them, across 9 drugs with 11 or more claims each, at $9,345 in total drug cost. In 2023, CMS named 325 claims across 8 drugs.

Part D claims, 2024404
Drugs named by CMS9
Total drug cost$9,345
Part D patients102

Dr. Warnick's Part D claims by kind of drug, 2024

  • Generic399 claims99%
  • Brand-name and other5 claims1%

Dr. Warnick'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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3252024: 35710%

Drugs named by CMS: 9 in 2024, 8 in 2023.

See all prescribing by Dr. Warnick

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

Dr. Ronald Eugene Warnick scored 93 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Warnick for performance year 2024, reported through an alternative payment model (APM). Dr. Warnick accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Warnick as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Warnick's MIPS scores, performance year 2024

  • 93of 100Final score
  • 86of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Ronald Eugene Warnick has 61 publications on record

Dmand AI links 61 papers to Dr. Warnick, published from 2011 to 2025. 2023 was the busiest year, with 9. The most frequent topics are Radiosurgery, Brain Neoplasms and Intracranial Arteriovenous Malformations. Dr. Warnick has published most often in J Neurosurg. Dr. Warnick's most frequent co-authors are Jason P. Sheehan, Douglas S. Kondziolka, MD and Christopher Paul Cifarelli, MD, PhD.

Papers61
Years published2011 to 2025

Dr. Warnick's papers by year, 2014 to 2025

Topics Dr. Warnick writes about most

  • Radiosurgery
  • Brain Neoplasms
  • Intracranial Arteriovenous Malformations
  • Hemangioma, Cavernous, Central Nervous System
  • Lung Neoplasms
  • Embolization, Therapeutic
  • Glioblastoma
  • Glioma

Dr. Warnick's most frequent co-authors

Recent publications by Dr. Warnick

See all 61 publications and co-authors

See who Dr. Warnick researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Warnick works with, so you can find a warm path to the right neurosurgeons.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Ronald Eugene Warnick has worked on 1 clinical trial

Dmand AI links Dr. Warnick to 1 clinical trial. Conditions studied include Brain Neoplasms and Central Nervous System Neoplasms.

Conditions in Dr. Warnick's trials

  • Brain Neoplasms
  • Central Nervous System Neoplasms

Recent clinical trials with Dr. Warnick

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Ronald Eugene Warnick received $3,298 in industry payments from 2020 to 2025

CMS Open Payments shows 13 general payments to Dr. Warnick from 4 drug and device companies from 2020 to 2025. Consulting fees make up the largest share, 85% of the total. Brainlab, Inc. paid the most, $3,183.

General payments to Dr. Warnick by program year, 2020 to 2025

General payments to Dr. Warnick by kind, 2020 to 2025

$3.3Kin total
  • Consulting fees$2,80585%
  • Honoraria$3009%
  • Food and beverage$1936%

Companies that paid Dr. Warnick the most, 2020 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Warnick

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Ronald Eugene Warnick graduated from University of Rochester School of Medicine and Dentistry

Dr. Warnick graduated from University of Rochester School of Medicine and Dentistry in 1982.

  1. Medical schoolUniversity of Rochester School of Medicine and Dentistry

Source: Dmand AI Professional Profile Data

Sources for Dr. Ronald Eugene Warnick's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Ronald Eugene Warnick

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. Ronald Eugene Warnick's NPI number?

Dr. Ronald Eugene Warnick's NPI number is 1588694327. It was assigned on July 4, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Ronald Eugene Warnick?

Dr. Ronald Eugene Warnick is a neurosurgeon in West Chester, Ohio. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).

Where does Dr. Ronald Eugene Warnick practice?

Dr. Warnick practices at 9075 Centre Pointe Dr, West Chester, OH 45069. Dr. Warnick's primary practice is Mayfield Clinic Inc in West Chester, Ohio. Dmand AI also links Dr. Warnick to 4 hospitals and 1 group practice or clinic.

What is Dr. Ronald Eugene Warnick's office phone number?

The practice phone on file for Dr. Warnick is (513) 221-1100.

What is Dr. Ronald Eugene Warnick's medical license number?

Dr. Warnick holds Ohio license 35062072, one of the licenses on file in 2 states.

Which states has Dr. Ronald Eugene Warnick been licensed in?

Dmand AI has state licenses on file for Dr. Warnick in Ohio and Kentucky.

Which hospitals is Dr. Ronald Eugene Warnick affiliated with?

Dr. Warnick is affiliated with West Chester Hospital. Dmand AI links Dr. Warnick to 4 more hospitals.

What medical group is Dr. Ronald Eugene Warnick part of?

Dr. Warnick is linked to Mayfield Brain & Spine.

Does Dr. Ronald Eugene Warnick accept Medicare?

Yes. CMS data shows Dr. Warnick billed Medicare for 280 services in 2024, and Dr. Warnick accepts Medicare assignment.

Does Dr. Ronald Eugene Warnick offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Warnick as offering telehealth services.

Show 9 more questionsShow fewer questions

What is Dr. Ronald Eugene Warnick's MIPS score?

Dr. Warnick's MIPS final score for performance year 2024 is 93 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Dr. Ronald Eugene Warnick see?

CMS counts 158 Medicare patients who saw Dr. Warnick in 2024, with an average age of 73.

What services does Dr. Ronald Eugene Warnick bill to Medicare?

In 2024, Dr. Warnick's most billed Medicare services were surgery: brain, spine and nerves (61797), office visit, established patient (99213) and office visit, established patient (99214).

Where did Dr. Ronald Eugene Warnick go to medical school?

Dr. Warnick graduated from University of Rochester School of Medicine and Dentistry in 1982.

What drugs does Dr. Ronald Eugene Warnick prescribe most?

In 2024 Medicare Part D data, Dr. Warnick's most prescribed drugs by claims were Gabapentin, Lamotrigine and Carbamazepine.

Has Dr. Ronald Eugene Warnick received payments from drug or device companies?

CMS Open Payments shows $3,298 in general payments to Dr. Warnick from 4 companies from 2020 to 2025. The largest total came from Brainlab, Inc.

How long has Dr. Ronald Eugene Warnick been practicing?

Dr. Warnick graduated from medical school in 1982, 44 years ago.

Does Dr. Ronald Eugene Warnick do research?

Dmand AI links 61 publications to Dr. Warnick, published from 2011 to 2025. Dr. Warnick has worked on 1 clinical trial.

Who does Dr. Ronald Eugene Warnick publish with?

Dr. Warnick's most frequent co-authors are Jason P. Sheehan (40 shared papers), Douglas S. Kondziolka, MD (24 shared papers) and Christopher Paul Cifarelli, MD, PhD (13 shared papers).

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