Dr. John O'Neill Barron, MD
- Medicare services, 2024
- 16
- Medicare patients, 2024
- 21
- Part D claims, 2022
- 12
- Hospital affiliations
- 1
- Industry payments
- $2,694
- Practice address
- 18697 Bagley Rd, Cleveland, OH 44130
- Practice phone
- Call (440) 816-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Southwest General Health Center
Cleveland, Ohio
Find Dr. Barron's professional email, personal email and mobile number
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Dr. John O'Neill Barron is a general surgeon in Cleveland, Ohio
Dr. Barron practices at Southwest General Health Center in Cleveland, Ohio.
Dr. Barron's NPI, 1679101463, was assigned on March 29, 2020. Dr. Barron graduated from Saint Louis University School of Medicine in 2020. Dr. Barron holds Ohio license 35.145884.
- NPI
- 1679101463NPI Registry (opens in a new tab)
- NPI enumeration date
- March 29, 2020
- NPI status
- Active
- Practice phone
- (440) 816-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. John O'Neill Barron practices at Southwest General Health Center in Cleveland, Ohio
Dr. Barron's primary practice is Southwest General Health Center, at 18697 Bagley Rd, Cleveland, OH 44130 in Cuyahoga County. The practice phone is (440) 816-8000.
- Southwest General Health Center18697 Bagley Rd, Cleveland, OH 44130 · Cuyahoga CountyPhone(440) 816-8000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John O'Neill Barron is affiliated with 2 sites of care and 1 medical group
Dr. Barron's primary practice is Southwest General Health Center in Cleveland, Ohio. Dr. Barron is also affiliated with Cleveland Clinic Main Campus. The medical group on file is Southwest General Medical Group, Inc.
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. John O'Neill Barron's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Barron practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southwest General Health Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John O'Neill Barron is one of 1,056 general surgeons in Ohio
Surgery is Dr. Barron's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Barron is licensed in Ohio.
Specialties and state licenses
- Surgery, OhioPrimary
General surgeons near Dr. Barron
Counts of general surgeons 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 O'Neill Barron billed Medicare for 16 services in 2024
CMS data shows 16 Medicare services from Dr. Barron across 1 procedure code in 2024, for 21 Medicare patients. Medicare paid $941 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Barron compared with the Ohio median for general surgeons, 2024
- Dr. Barron
- Ohio median
- Medicare services
- 16vs 16890% below
- Medicare patients
- 21vs 12783% below
- Part D claims
- 12vs 4674% below
Medians across 1,031 general surgeons in Ohio with Dmand AI profiles that report each measure.
Dr. Barron'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. Barron and other general surgeons in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John O'Neill Barron treated 21 Medicare patients in 2024, average age 76
CMS counts 21 Medicare patients who saw Dr. Barron in 2024. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.72, 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. Barron's median patient age at 81, with 67% women.
Chronic conditions among Dr. Barron's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Depression57%
- Arthritis52%
- Diabetes52%
- Mood disorders52%
Share of Medicare patients with each condition. A patient can have several.
Dr. Barron's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 81
Patient panel by sex, all payers
- Women67%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John O'Neill Barron wrote 12 Medicare Part D claims in 2022
In 2022, Dr. Barron wrote 12 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $44 in total drug cost. In 2021, CMS named 14 claims across 1 drug.
Dr. Barron's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 142022: 1214%
Drugs named by CMS: 1 in 2022, 1 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. John O'Neill Barron received $2,694 in industry payments from 2022 to 2025
CMS Open Payments shows 21 general payments to Dr. Barron from 11 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 81% of the total. Edwards Lifesciences Corporation paid the most, $712.
General payments to Dr. Barron by program year, 2022 to 2025
General payments to Dr. Barron by kind, 2022 to 2025
- Food and beverage$2,19481%
- Consulting fees$50019%
Companies that paid Dr. Barron the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John O'Neill Barron graduated from Saint Louis University School of Medicine
Dr. Barron graduated from Saint Louis University School of Medicine in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John O'Neill Barron'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 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) |
| 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. John O'Neill Barron
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 O'Neill Barron's NPI number?
Dr. John O'Neill Barron's NPI number is 1679101463. It was assigned on March 29, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. John O'Neill Barron?
Dr. John O'Neill Barron is a general surgeon in Cleveland, Ohio. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. John O'Neill Barron practice?
Dr. Barron practices at 18697 Bagley Rd, Cleveland, OH 44130. Dr. Barron's primary practice is Southwest General Health Center in Cleveland, Ohio.
What is Dr. John O'Neill Barron's office phone number?
The practice phone on file for Dr. Barron is (440) 816-8000.
What is Dr. John O'Neill Barron's medical license number?
Dr. Barron holds Ohio license 35.145884.
Which hospitals is Dr. John O'Neill Barron affiliated with?
Dr. Barron is affiliated with Cleveland Clinic Main Campus.
What medical group is Dr. John O'Neill Barron part of?
Dr. Barron is linked to Southwest General Medical Group, Inc.
Does Dr. John O'Neill Barron accept Medicare?
Yes. CMS data shows Dr. Barron billed Medicare for 16 services in 2024.
How many Medicare patients does Dr. John O'Neill Barron see?
CMS counts 21 Medicare patients who saw Dr. Barron in 2024, with an average age of 76.
What services does Dr. John O'Neill Barron bill to Medicare?
In 2024, Dr. Barron's most billed Medicare services were hospital inpatient care (99221).
Show 4 more questionsShow fewer questions
Where did Dr. John O'Neill Barron go to medical school?
Dr. Barron graduated from Saint Louis University School of Medicine in 2020.
What drugs does Dr. John O'Neill Barron prescribe most?
In 2022 Medicare Part D data, Dr. Barron's most prescribed drugs by claims were Oxycodone HCl.
Has Dr. John O'Neill Barron received payments from drug or device companies?
CMS Open Payments shows $2,694 in general payments to Dr. Barron from 11 companies from 2022 to 2025. The largest total came from Edwards Lifesciences Corporation.
How long has Dr. John O'Neill Barron been practicing?
Dr. Barron graduated from medical school in 2020, 6 years ago.
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