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Dr. Johnathan Charles Conner, MD
NPI1619948742
- Medicare services, 2024
- 704
- Medicare patients, 2024
- 535
- Part D claims, 2024
- 382
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 2400 Round Rock Ave, Round Rock, TX 78681
- Practice phone
- Call (512) 341-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Johnathan Charles Conner is an emergency medicine physician in Round Rock, Texas
Dr. Conner practices at St. David's Round Rock Medical Center in Round Rock, Texas, part of HCA Healthcare.
Dr. Conner's NPI, 1619948742, was assigned on January 27, 2006. Dr. Conner graduated from McGovern Medical School in 1999. Dr. Conner's Texas license number on file is M4003.
NPI and contact details
- NPI
- 1619948742NPI Registry (opens in a new tab)
- NPI enumeration date
- January 27, 2006
- NPI status
- Active
- Practice phone
- (512) 341-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Johnathan Charles Conner practices at St. David's Round Rock Medical Center in Round Rock, Texas
Dr. Conner's primary practice is St. David's Round Rock Medical Center, at 2400 Round Rock Ave, Round Rock, TX 78681 in Williamson County. The practice phone is (512) 341-1000.
- St. David's Round Rock Medical Center2400 Round Rock Ave, Round Rock, TX 78681 · Williamson CountyPhone(512) 341-1000
Source: Dmand AI Affiliation Data
Dr. Johnathan Charles Conner is affiliated with 2 sites of care and 1 medical group
Dr. Conner's primary practice is St. David's Round Rock Medical Center in Round Rock, Texas, part of HCA Healthcare. The medical group on file is Longhorn Emergency Medical Associates PA. Dmand AI also links Dr. Conner to 1 more clinical lab, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Johnathan Charles Conner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Conner practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St. David's Round Rock Medical 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. Johnathan Charles Conner is one of 4,831 emergency medicine physicians in Texas
Emergency medicine is Dr. Conner's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Conner is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Conner's licenses on file in 3 states: Texas, Florida and Ohio.
Specialties and state licenses
- Emergency medicine, TexasPrimary
- Florida license
- Ohio license
Emergency medicine physicians near Dr. Conner
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
4,831emergency medicine physicians in Texas77emergency medicine physicians in Round Rock28emergency medicine physicians at St. David's Round Rock Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Johnathan Charles Conner billed Medicare for 704 services in 2024
CMS data shows 704 Medicare services from Dr. Conner across 5 procedure codes in 2024, for 535 Medicare patients. Medicare paid $56,471 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024704
Medicare patients535
Paid by Medicare$56,471
Procedure codes5
Dr. Conner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4442024: 49511%
- Tests and treatments
- 2023: 1632024: 20928%
Dr. Conner compared with the Texas median for emergency medicine physicians, 2024
- Dr. Conner
- Texas median
- Medicare services
- 704vs 2253.1 times
- Medicare patients
- 535vs 2062.6 times
- Part D claims
- 226vs 743.1 times
Medians across 4,588 emergency medicine physicians in Texas with Dmand AI profiles that report each measure.
Dr. Conner'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.
Need commercial claims for Dr. Conner?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Conner and other emergency medicine physicians in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Johnathan Charles Conner treated 535 Medicare patients in 2024, average age 77
CMS counts 535 Medicare patients who saw Dr. Conner in 2024. The largest group is 75 to 84, with 231 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 8% are also on Medicaid. Their average risk score is 1.64, 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. Conner's median patient age at 47, with 58% women.
Medicare patients, 2024535
Average age77
Average risk score1.64
Also on Medicaid8%
Dr. Conner's Medicare patients by age, 2024
Dr. Conner's Medicare patients by sex, 2024
- Women31158%
- Men22442%
Chronic conditions among Dr. Conner's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis54%
- Ischemic heart disease40%
- Anxiety37%
- Mood disorders37%
- Depression33%
- Diabetes33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Conner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Johnathan Charles Conner wrote 382 Medicare Part D claims in 2024
In 2024, Dr. Conner wrote 382 Medicare Part D claims for 242 patients. 94% of them were for generic drugs. CMS names the drug for 226 of them, across 8 drugs with 11 or more claims each, at $1,213 in total drug cost. In 2023, CMS named 181 claims across 8 drugs.
Part D claims, 2024382
Drugs named by CMS8
Total drug cost$1,213
Part D patients242
Dr. Conner's Part D claims by kind of drug, 2024
- Generic360 claims94%
- Brand-name and other22 claims6%
Dr. Conner'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. Conner's Part D claims, 2024
- Opioids28%108 of 382 claims
- Antibiotics23%86 of 382 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: 1812024: 22625%
Drugs named by CMS: 8 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
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Dr. Johnathan Charles Conner has 1 publication on record
Dmand AI links 1 paper to Dr. Conner. Dr. Conner's most frequent co-author is Vikhyat S. Bebarta, MD.
Papers1
Dr. Conner's most frequent co-authors
Recent publications by Dr. Conner
See who Dr. Conner researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Conner works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Johnathan Charles Conner received $12 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Conner from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $12.
Companies that paid Dr. Conner the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Johnathan Charles Conner graduated from McGovern Medical School
Dr. Conner graduated from McGovern Medical School in 1999.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Johnathan Charles Conner accepts plans from 14 insurance carriers
Dr. Conner is in network with 14 carriers, including Aetna, Excellus BlueCross BlueShield and United Healthcare. HMO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Excellus BlueCross BlueShield
- United Healthcare
- Elevance
- Alliant Health Plans
- HCSC
- Baylor Scott and White
- Blue Cross and Blue Shield of Kansas City
- +6 more carriersWith a free account
Plan types Dr. Conner accepts, by number of carriers
- HMO9
- PPO9
- EPO4
- POS4
- Medicare3
Source: Dmand AI Insurance Network Data
Sources for Dr. Johnathan Charles Conner'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Johnathan Charles Conner
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. Johnathan Charles Conner's NPI number?
Dr. Johnathan Charles Conner's NPI number is 1619948742. It was assigned on January 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Johnathan Charles Conner?
Dr. Johnathan Charles Conner is an emergency medicine physician in Round Rock, Texas. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Johnathan Charles Conner practice?
Dr. Conner practices at 2400 Round Rock Ave, Round Rock, TX 78681. Dr. Conner's primary practice is St. David's Round Rock Medical Center in Round Rock, Texas, part of HCA Healthcare. Dmand AI also links Dr. Conner to 1 clinical lab.
What is Dr. Johnathan Charles Conner's office phone number?
The practice phone on file for Dr. Conner is (512) 341-1000.
What is Dr. Johnathan Charles Conner's medical license number?
Dr. Conner's Texas license number on file is M4003, one of the licenses on file in 3 states.
Which states has Dr. Johnathan Charles Conner been licensed in?
Dmand AI has state licenses on file for Dr. Conner in Texas (2006 to 2025), Florida (2003 to 2008) and Ohio (1999 to 2007).
Which hospitals is Dr. Johnathan Charles Conner affiliated with?
Dr. Conner practices at St. David's Round Rock Medical Center in Round Rock, Texas.
What medical group is Dr. Johnathan Charles Conner part of?
Dr. Conner is linked to Longhorn Emergency Medical Associates PA.
Does Dr. Johnathan Charles Conner accept Medicare?
Yes. CMS data shows Dr. Conner billed Medicare for 704 services in 2024.
How many Medicare patients does Dr. Johnathan Charles Conner see?
CMS counts 535 Medicare patients who saw Dr. Conner in 2024, with an average age of 77.
Show 9 more questionsShow fewer questions
Is Dr. Johnathan Charles Conner board certified?
Yes. Dr. Conner is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Johnathan Charles Conner bill to Medicare?
In 2024, Dr. Conner's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Where did Dr. Johnathan Charles Conner go to medical school?
Dr. Conner graduated from McGovern Medical School in 1999.
What drugs does Dr. Johnathan Charles Conner prescribe most?
In 2024 Medicare Part D data, Dr. Conner's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Acetaminophen-Codeine and Ondansetron ODT.
Has Dr. Johnathan Charles Conner received payments from drug or device companies?
CMS Open Payments shows $12 in general payments to Dr. Conner from 1 company from 2017 to 2017. The largest total came from Pfizer Inc.
How long has Dr. Johnathan Charles Conner been practicing?
Dr. Conner graduated from medical school in 1999, 27 years ago.
Does Dr. Johnathan Charles Conner do research?
Dmand AI links 1 publication to Dr. Conner.
Who does Dr. Johnathan Charles Conner publish with?
Dr. Conner's most frequent co-authors are Vikhyat S. Bebarta, MD (1 shared paper).
What insurance does Dr. Johnathan Charles Conner accept?
Dr. Conner is in network with 14 carriers, including Aetna, Excellus BlueCross BlueShield and United Healthcare. HMO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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