Dr. John E. Vernon, MD
- Medicare services, 2024
- 837
- Medicare patients, 2024
- 290
- Part D claims, 2024
- 12,006
- Hospital affiliations
- 6
- Industry payments
- $7,696
- Practice address
- 615 New Ballas Road, Saint Louis, MO 63141
- Practice phone
- Call (314) 251-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Vernon's professional email, personal email and mobile number
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Dr. John E. Vernon is an internist in Saint Louis, Missouri
Dr. Vernon practices at Mercy Hospital St. Louis in Saint Louis, Missouri, part of Mercy.
Dr. Vernon's NPI, 1891793105, was assigned on July 11, 2005. Dr. Vernon graduated from University of Missouri, Columbia School of Medicine in 2000. Dr. Vernon holds Missouri license 2001031156.
- NPI
- 1891793105NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1355332990
- NPI enumeration date
- July 11, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (314) 251-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John E. Vernon practices at Mercy Hospital St. Louis in Saint Louis, Missouri
Dr. Vernon's primary practice is Mercy Hospital St. Louis, at 615 New Ballas Road, Saint Louis, MO 63141 in St. Louis County. The practice phone is (314) 251-6000.
- Mercy Hospital St. Louis615 New Ballas Road, Saint Louis, MO 63141 · St. Louis CountyPhone(314) 251-6000
Source: Dmand AI Affiliation Data
Dr. John E. Vernon is affiliated with 12 sites of care and 1 medical group
Dr. Vernon's primary practice is Mercy Hospital St. Louis in Saint Louis, Missouri, part of Mercy. Dr. Vernon is also affiliated with Mercy Hospital South. The medical group on file is Mercy Clinic East Communities. Dmand AI also links Dr. Vernon to 4 more hospitals, 4 home health agencies, 1 group practice or clinic and 1 hospice, 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 E. Vernon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Vernon practices, 12 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital St. Louis | Available with a free account |
| +11 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John E. Vernon is one of 2,114 internists in Missouri
Internal medicine is Dr. Vernon's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Vernon is licensed in Missouri.
Specialties and state licenses
- Internal medicine, MissouriPrimary
Internists near Dr. Vernon
Counts of internists 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 E. Vernon billed Medicare for 837 services in 2024
CMS data shows 837 Medicare services from Dr. Vernon across 10 procedure codes in 2024, for 290 Medicare patients. Medicare paid $68,028 for them. Every service was in an office.
Dr. Vernon's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5592024: 46517%
- Other services
- 2023: 2762024: 2957%
- Tests and treatments
- 2023: 602024: 7728%
Dr. Vernon compared with the Missouri median for internists, 2024
- Dr. Vernon
- Missouri median
- Medicare services
- 837vs 53058% above
- Medicare patients
- 290vs 21137% above
- Part D claims
- 11,108vs 32534.2 times
Medians across 2,076 internists in Missouri with Dmand AI profiles that report each measure.
Dr. Vernon'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. Vernon and other internists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John E. Vernon treated 290 Medicare patients in 2024, average age 74
CMS counts 290 Medicare patients who saw Dr. Vernon in 2024. The largest group is 65 to 74, with 145 patients. 70% of them have high blood pressure, and 67% have high cholesterol. 4% are also on Medicaid. Their average risk score is 1.15, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Vernon's median patient age at 67, with 53% women.
Dr. Vernon's Medicare patients by age, 2024
Dr. Vernon's Medicare patients by sex, 2024
- Women14851%
- Men14249%
Chronic conditions among Dr. Vernon's Medicare patients, 2024
- High blood pressure70%
- High cholesterol67%
- Arthritis44%
- Chronic kidney disease27%
- Diabetes26%
- Anxiety20%
- Ischemic heart disease20%
- Mood disorders20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Vernon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John E. Vernon wrote 12,006 Medicare Part D claims in 2024
In 2024, Dr. Vernon wrote 12,006 Medicare Part D claims for 748 patients. 86% of them were for generic drugs. CMS names the drug for 11,108 of them, across 169 drugs with 11 or more claims each, at $1,016,311 in total drug cost. In 2023, CMS named 9,736 claims across 161 drugs.
Dr. Vernon's Part D claims by kind of drug, 2024
- Generic10,351 claims86%
- Brand-name1,608 claims13%
- Other47 claims0%
Dr. Vernon'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. Vernon's Part D claims, 2024
- Opioids5%642 of 12,006 claims
- Antibiotics2%267 of 12,006 claims
- Antipsychotics, patients 65 and over0%37 of 12,006 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: 9,7362024: 11,10814%
Drugs named by CMS: 169 in 2024, 161 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 E. Vernon offers telehealth to Medicare patients
Dr. Vernon accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Vernon as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John E. Vernon received $7,696 in industry payments from 2016 to 2025
CMS Open Payments shows 500 general payments to Dr. Vernon from 41 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $1,370.
General payments to Dr. Vernon by program year, 2016 to 2025
General payments to Dr. Vernon by kind, 2016 to 2025
- Food and beverage$7,661100%
- Education$350%
Companies that paid Dr. Vernon the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John E. Vernon graduated from University of Missouri, Columbia School of Medicine
Dr. Vernon graduated from University of Missouri, Columbia School of Medicine in 2000.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John E. Vernon'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) |
| 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 E. Vernon
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 E. Vernon's NPI number?
Dr. John E. Vernon's NPI number is 1891793105. It was assigned on July 11, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John E. Vernon?
Dr. John E. Vernon is an internist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John E. Vernon practice?
Dr. Vernon practices at 615 New Ballas Road, Saint Louis, MO 63141. Dr. Vernon's primary practice is Mercy Hospital St. Louis in Saint Louis, Missouri, part of Mercy. Dmand AI also links Dr. Vernon to 4 hospitals, 4 home health agencies, 1 group practice or clinic and 1 hospice.
What is Dr. John E. Vernon's office phone number?
The practice phone on file for Dr. Vernon is (314) 251-6000.
What is Dr. John E. Vernon's medical license number?
Dr. Vernon holds Missouri license 2001031156.
Which hospitals is Dr. John E. Vernon affiliated with?
Dr. Vernon practices at Mercy Hospital St. Louis in Saint Louis, Missouri. Dr. Vernon is also affiliated with Mercy Hospital South. Dmand AI links Dr. Vernon to 4 more hospitals.
What medical group is Dr. John E. Vernon part of?
Dr. Vernon is linked to Mercy Clinic East Communities.
Does Dr. John E. Vernon accept Medicare?
Yes. CMS data shows Dr. Vernon billed Medicare for 837 services in 2024, and Dr. Vernon accepts Medicare assignment.
Does Dr. John E. Vernon offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Vernon as offering telehealth services.
How many Medicare patients does Dr. John E. Vernon see?
CMS counts 290 Medicare patients who saw Dr. Vernon in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
What services does Dr. John E. Vernon bill to Medicare?
In 2024, Dr. Vernon's most billed Medicare services were office visit, established patient (99213), medicare service (G0439) and office visit, established patient (99214).
Where did Dr. John E. Vernon go to medical school?
Dr. Vernon graduated from University of Missouri, Columbia School of Medicine in 2000.
What drugs does Dr. John E. Vernon prescribe most?
In 2024 Medicare Part D data, Dr. Vernon's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.
Has Dr. John E. Vernon received payments from drug or device companies?
CMS Open Payments shows $7,696 in general payments to Dr. Vernon from 41 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. John E. Vernon been practicing?
Dr. Vernon graduated from medical school in 2000, 26 years ago.
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