Psychiatry Res
Cognition DisordersDouble-Blind MethodElectroconvulsive Therapy
Dr. Ronald Lee Warnell, MD
NPI1730104472
- Medicare services, 2017
- 96
- Part D claims, 2024
- 209
- Publications
- 6
- Clinical trials
- 3
- Industry payments
- $832
- Practice address
- 11980 Mt Vernon Ave, Grand Terrace, CA 92313
- Practice phone
- Call (909) 556-7245
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Warnell'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. Ronald Lee Warnell is a psychiatrist in Grand Terrace, California
Dr. Warnell practices in Grand Terrace, California.
Dr. Warnell's NPI, 1730104472, was assigned on July 13, 2006. Dr. Warnell graduated from Loma Linda University School Of Medicine in 1972. Dr. Warnell holds California license G24960.
NPI and contact details
- NPI
- 1730104472NPI Registry (opens in a new tab)
- NPI enumeration date
- July 13, 2006
- NPI status
- Active
- Practice phone
- (909) 556-7245
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1972
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Ronald Lee Warnell's practice address is in Grand Terrace, California
Dr. Warnell's practice address in the NPI Registry is 11980 Mt Vernon Ave, Grand Terrace, CA 92313, in San Bernardino County. The practice phone is (909) 556-7245.
- NPI Registry address11980 Mt Vernon Ave, Grand Terrace, CA 92313 · San Bernardino CountyPhone(909) 556-7245
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Ronald Lee Warnell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Warnell practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Warnell's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ronald Lee Warnell is one of 6,803 psychiatrists in California
Psychiatry is Dr. Warnell's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Warnell is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Warnell's licenses on file in 3 states: California, Oregon and Illinois.
Specialties and state licenses
- Psychiatry, CaliforniaPrimary
- Oregon license
- Illinois license
Clinical focus
Dmand AI lists anxiety, bipolar disorder, depression, insomnia, schizophrenia and tobacco use among the conditions Dr. Warnell treats.
Psychiatrists near Dr. Warnell
Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.
6,803psychiatrists in California
2psychiatrists in Grand Terrace
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ronald Lee Warnell billed Medicare for 96 services in 2017
CMS data shows 96 Medicare services from Dr. Warnell across 2 procedure codes in 2017. Medicare paid $3,336 for them. Every service was in an office.
Medicare services, 201796
Paid by Medicare$3,336
Procedure codes2
Dr. Warnell's Medicare services by type, 2016 to 2017
- 2016
- 2017
- Tests and treatments
- 2016: 942017: 4849%
- Office and hospital visits
- 2016: 952017: 4849%
Dr. Warnell compared with the California median for psychiatrists, 2017
- Dr. Warnell
- California median
- Medicare services
- 96vs 11919% below
- Part D claims
- 129vs 14410% below
Medians across 6,809 psychiatrists in California with Dmand AI profiles that report each measure.
Dr. Warnell's most billed Medicare procedure codes, 2017
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. Warnell?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Warnell and other psychiatrists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ronald Lee Warnell wrote 209 Medicare Part D claims in 2024
In 2024, Dr. Warnell wrote 209 Medicare Part D claims for 40 patients. 97% of them were for generic drugs. CMS names the drug for 129 of them, across 8 drugs with 11 or more claims each, at $1,467 in total drug cost. In 2023, CMS named 1,263 claims across 28 drugs.
Part D claims, 2024209
Drugs named by CMS8
Total drug cost$1,467
Part D patients40
Dr. Warnell's Part D claims by kind of drug, 2024
- Generic202 claims97%
- Brand-name and other7 claims3%
Dr. Warnell'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: 1,2632024: 12990%
Drugs named by CMS: 8 in 2024, 28 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
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Dr. Ronald Lee Warnell has 6 publications on record
Dmand AI links 6 papers to Dr. Warnell in 2009. The most frequent topics are Electroconvulsive Therapy and Neuropsychological Tests.
Papers6
Topics Dr. Warnell writes about most
- Electroconvulsive Therapy
- Neuropsychological Tests
Recent publications by Dr. Warnell
Acad Psychiatry
Clinical ClerkshipClinical CompetenceElectroconvulsive Therapy
Antidepressive AgentsBipolar DisorderCosts and Cost Analysis
Ann Clin Psychiatry
CognitionDepressive Disorder, MajorElectroconvulsive Therapy
See who Dr. Warnell researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Warnell works with, so you can find a warm path to the right psychiatrists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ronald Lee Warnell has worked on 3 clinical trials
Dmand AI links Dr. Warnell to 3 clinical trials. Conditions studied include Depressive Disorder, Major, Alzheimer Disease and Depressive Disorder, Treatment-Resistant. Open Payments lists research payments to Dr. Warnell that name 1 trial.
Conditions in Dr. Warnell's trials
- Depressive Disorder, Major
- Alzheimer Disease
- Depressive Disorder, Treatment-Resistant
- Depressive Disorder
- Tauopathies
Investigators on the most trials with Dr. Warnell
- Lawrence Warren Adler, MD1 shared trial
- Thomas A. Ala, MD1 shared trial
- Alejandro Alva, MD1 shared trial
Recent clinical trials with Dr. Warnell
SUVN-502 With Donepezil and Memantine for the Treatment of Moderate Alzheimer's Disease- Phase 2a Study (opens in a new tab)
CompletedPhase 2
Alzheimer DiseaseTauopathiesDonepezilMemantineSUVN-502
The Effect on Cognition of Terminating ECT Induced Seizures With Propofol (opens in a new tab)
Completed
Depressive Disorder, MajorDepressive DisorderPropofol
Depressive Disorder, Treatment-ResistantDepressive Disorder, Major
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Ronald Lee Warnell received $832 in industry payments from 2016 to 2019
CMS Open Payments shows 8 general payments to Dr. Warnell from 6 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Neurocrine BioSciences, Inc. paid the most, $250. It also lists 7 research payments totaling $971 in 2025, naming 1 clinical trial.
General payments to Dr. Warnell by program year, 2016 to 2019
Companies that paid Dr. Warnell the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ronald Lee Warnell has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Warnell, most recently CMS Stage 1 2012 in 2011.
Awards and honors for Dr. Warnell
- 2011
- CMS Stage 1 2012
- 2009
- Distinguished Llfe Fellow
Source: Dmand AI Professional Profile Data
Dr. Ronald Lee Warnell graduated from Loma Linda University School Of Medicine
Dr. Warnell graduated from Loma Linda University School Of Medicine in 1972. Dr. Warnell is a member of APA, American Society for Clinical Psychopharmacology, California Psychiatric Association and Southern California Psychiatric Society.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Ronald Lee Warnell accepts plans from 5 insurance carriers
Dr. Warnell is in network with 5 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
Plan types Dr. Warnell accepts, by number of carriers
- Medicare5
- PPO5
- HMO2
- POS2
- EPO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Ronald Lee Warnell'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 |
| 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 |
| 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) |
| 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Ronald Lee Warnell
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 Lee Warnell's NPI number?
Dr. Ronald Lee Warnell's NPI number is 1730104472. It was assigned on July 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ronald Lee Warnell?
Dr. Ronald Lee Warnell is a psychiatrist in Grand Terrace, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Ronald Lee Warnell practice?
Dr. Warnell practices at 11980 Mt Vernon Ave, Grand Terrace, CA 92313.
What is Dr. Ronald Lee Warnell's office phone number?
The practice phone on file for Dr. Warnell is (909) 556-7245.
What is Dr. Ronald Lee Warnell's medical license number?
Dr. Warnell holds California license G24960, one of the licenses on file in 3 states.
Which states has Dr. Ronald Lee Warnell been licensed in?
Dmand AI has state licenses on file for Dr. Warnell in California (1973 to 2026), Oregon (1977 to 2025) and Illinois (1983 to 1999).
Does Dr. Ronald Lee Warnell accept Medicare?
Yes. CMS data shows Dr. Warnell billed Medicare for 96 services in 2017.
Is Dr. Ronald Lee Warnell board certified?
Yes. Dr. Warnell is board certified in psychiatry by the American Board of Psychiatry and Neurology.
What services does Dr. Ronald Lee Warnell bill to Medicare?
In 2017, Dr. Warnell's most billed Medicare services were psychiatric service (90833) and office visit, established patient (99212).
Where did Dr. Ronald Lee Warnell go to medical school?
Dr. Warnell graduated from Loma Linda University School Of Medicine in 1972.
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What drugs does Dr. Ronald Lee Warnell prescribe most?
In 2024 Medicare Part D data, Dr. Warnell's most prescribed drugs by claims were Trazodone HCl, Escitalopram Oxalate and Citalopram HBr.
Has Dr. Ronald Lee Warnell received payments from drug or device companies?
CMS Open Payments shows $832 in general payments to Dr. Warnell from 6 companies from 2016 to 2019. The largest total came from Neurocrine BioSciences, Inc.
How long has Dr. Ronald Lee Warnell been practicing?
Dr. Warnell graduated from medical school in 1972, 54 years ago.
Does Dr. Ronald Lee Warnell do research?
Dmand AI links 6 publications to Dr. Warnell. Dr. Warnell has worked on 3 clinical trials.
What insurance does Dr. Ronald Lee Warnell accept?
Dr. Warnell is in network with 5 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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