Dr. John Wordy Buckner IV, MD
- Medicare services, 2024
- 729
- Medicare patients, 2024
- 474
- Part D claims, 2024
- 191
- MIPS score, 2024
- 97
- Hospital affiliations
- 2
- Practice address
- 1600 N Rose Ave, Oxnard, CA 93030
- Practice phone
- Call (805) 988-2500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Buckner's professional email, personal email and mobile number
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Dr. John Wordy Buckner IV is an emergency medicine physician in Oxnard, California
Dr. Buckner practices at Dignity Health - St. John's Regional Medical Center in Oxnard, California, part of CommonSpirit Health.
Dr. Buckner's NPI, 1215294327, was assigned on April 13, 2012. Dr. Buckner graduated from UMKC School of Medicine in 2012. Dr. Buckner holds California license 157401.
- NPI
- 1215294327NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416174388
- NPI enumeration date
- April 13, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 988-2500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Wordy Buckner IV practices at Dignity Health - St. John's Regional Medical Center in Oxnard, California
Dr. Buckner's primary practice is Dignity Health - St. John's Regional Medical Center, at 1600 N Rose Ave, Oxnard, CA 93030 in Ventura County. The practice phone is (805) 988-2500.
- Dignity Health - St. John's Regional Medical Center1600 N Rose Ave, Oxnard, CA 93030 · Ventura CountyPhone(805) 988-2500
Source: Dmand AI Affiliation Data
Dr. John Wordy Buckner IV is affiliated with 2 sites of care and 2 medical groups
Dr. Buckner's primary practice is Dignity Health - St. John's Regional Medical Center in Oxnard, California, part of CommonSpirit Health. The medical group on file is Vituity. Dmand AI also links Dr. Buckner to 1 more hospital and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Wordy Buckner IV's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Buckner practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - St. John's Regional Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Wordy Buckner IV is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Buckner's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Buckner is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Buckner's licenses on file in 2 states: California and Missouri.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
- Missouri license
Emergency medicine physicians near Dr. Buckner
Counts of emergency medicine physicians 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. John Wordy Buckner IV billed Medicare for 729 services in 2024
CMS data shows 729 Medicare services from Dr. Buckner across 4 procedure codes in 2024, for 474 Medicare patients. Medicare paid $66,861 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Buckner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5652024: 48414%
- Tests and treatments
- 2023: 2732024: 24510%
Dr. Buckner compared with the California median for emergency medicine physicians, 2024
- Dr. Buckner
- California median
- Medicare services
- 729vs 2652.8 times
- Medicare patients
- 474vs 24395% above
- Part D claims
- 93vs 6250% above
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Buckner'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Wordy Buckner IV treated 474 Medicare patients in 2024, average age 75
CMS counts 474 Medicare patients who saw Dr. Buckner in 2024. The largest group is 75 to 84, with 156 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 46% are also on Medicaid. Their average risk score is 2.49, 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. Buckner's median patient age at 38, with 55% women.
Dr. Buckner's Medicare patients by age, 2024
Dr. Buckner's Medicare patients by sex, 2024
- Women26456%
- Men21044%
Chronic conditions among Dr. Buckner's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Diabetes47%
- Ischemic heart disease44%
- Anxiety43%
- Chronic kidney disease40%
- Mood disorders39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Buckner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 38
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Wordy Buckner IV wrote 191 Medicare Part D claims in 2024
In 2024, Dr. Buckner wrote 191 Medicare Part D claims for 143 patients. 95% of them were for generic drugs. CMS names the drug for 93 of them, across 5 drugs with 11 or more claims each, at $623 in total drug cost. In 2023, CMS named 111 claims across 5 drugs.
Dr. Buckner's Part D claims by kind of drug, 2024
- Generic181 claims95%
- Brand-name and other10 claims5%
Dr. Buckner'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. Buckner's Part D claims, 2024
- Opioids17%33 of 191 claims
- Antibiotics34%64 of 191 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: 1112024: 9316%
Drugs named by CMS: 5 in 2024, 5 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
Dr. John Wordy Buckner IV scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Buckner for performance year 2024, reported as part of a group. Dr. Buckner accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Buckner's MIPS scores, performance year 2024
- 97of 100Final score
- 90of 100Quality
- 40of 100Improvement Activities
- 78of 100Cost
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. John Wordy Buckner IV received $75 in industry payments from 2016 to 2022
CMS Open Payments shows 6 general payments to Dr. Buckner from 3 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $35.
General payments to Dr. Buckner by program year, 2016 to 2022
Companies that paid Dr. Buckner the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Wordy Buckner IV graduated from UMKC School of Medicine
Dr. Buckner graduated from UMKC School of Medicine in 2012.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. John Wordy Buckner IV accepts plans from 8 insurance carriers
Dr. Buckner is in network with 8 carriers, including Aetna, United Healthcare and Elevance. HMO plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Elevance
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- HCSC
- Health Alliance Plan
Plan types Dr. Buckner accepts, by number of carriers
- HMO4
- POS4
- PPO4
- Medicare3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. John Wordy Buckner IV'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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)Clinician Public Reporting: Overall MIPS Performance (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 |
| 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. John Wordy Buckner IV
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. John Wordy Buckner IV's NPI number?
Dr. John Wordy Buckner IV's NPI number is 1215294327. It was assigned on April 13, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. John Wordy Buckner IV?
Dr. John Wordy Buckner IV is an emergency medicine physician in Oxnard, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. John Wordy Buckner IV practice?
Dr. Buckner practices at 1600 N Rose Ave, Oxnard, CA 93030. Dr. Buckner's primary practice is Dignity Health - St. John's Regional Medical Center in Oxnard, California, part of CommonSpirit Health. Dmand AI also links Dr. Buckner to 1 hospital and 1 medical group.
What is Dr. John Wordy Buckner IV's office phone number?
The practice phone on file for Dr. Buckner is (805) 988-2500.
What is Dr. John Wordy Buckner IV's medical license number?
Dr. Buckner holds California license 157401, one of the licenses on file in 2 states.
Which states has Dr. John Wordy Buckner IV been licensed in?
Dmand AI has state licenses on file for Dr. Buckner in California (2018 to 2026) and Missouri (2014 to 2020).
Which hospitals is Dr. John Wordy Buckner IV affiliated with?
Dr. Buckner practices at Dignity Health - St. John's Regional Medical Center in Oxnard, California. Dmand AI links Dr. Buckner to 1 more hospital.
What medical group is Dr. John Wordy Buckner IV part of?
Dr. Buckner is linked to Vituity. Dmand AI links Dr. Buckner to 1 more medical group.
Does Dr. John Wordy Buckner IV accept Medicare?
Yes. CMS data shows Dr. Buckner billed Medicare for 729 services in 2024, and Dr. Buckner accepts Medicare assignment.
What is Dr. John Wordy Buckner IV's MIPS score?
Dr. Buckner's MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.
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How many Medicare patients does Dr. John Wordy Buckner IV see?
CMS counts 474 Medicare patients who saw Dr. Buckner in 2024, with an average age of 75.
Is Dr. John Wordy Buckner IV board certified?
Yes. Dr. Buckner is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. John Wordy Buckner IV bill to Medicare?
In 2024, Dr. Buckner's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Where did Dr. John Wordy Buckner IV go to medical school?
Dr. Buckner graduated from UMKC School of Medicine in 2012.
What drugs does Dr. John Wordy Buckner IV prescribe most?
In 2024 Medicare Part D data, Dr. Buckner's most prescribed drugs by claims were Ondansetron ODT, Hydrocodone-Acetaminophen and Cephalexin.
Has Dr. John Wordy Buckner IV received payments from drug or device companies?
CMS Open Payments shows $75 in general payments to Dr. Buckner from 3 companies from 2016 to 2022. The largest total came from Pfizer Inc.
How long has Dr. John Wordy Buckner IV been practicing?
Dr. Buckner graduated from medical school in 2012, 14 years ago.
What insurance does Dr. John Wordy Buckner IV accept?
Dr. Buckner is in network with 8 carriers, including Aetna, United Healthcare and Elevance. HMO plans come from the most carriers, 4. Check the plan with the practice before a visit.
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