Thomas V. John
- Medicare services, 2024
- 173
- Medicare patients, 2024
- 69
- Part D claims, 2024
- 53
- Publications
- 6
- Hospital affiliations
- 1
- Practice address
- 22 S Greene St, Baltimore, MD 21201
- Practice phone
- Call (615) 355-3451
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Southeast Louisiana Veterans Healthcare
Baltimore, Maryland
Find Thomas John'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.
Thomas V. John is an internist in Baltimore, Maryland
Thomas John practices at Southeast Louisiana Veterans Healthcare in Baltimore, Maryland.
Thomas John's NPI, 1851929533, was assigned on March 30, 2020. Thomas John graduated from Tulane University School of Medicine in 2020. Thomas John holds Maryland license D97834.
- NPI
- 1851929533NPI Registry (opens in a new tab)
- NPI enumeration date
- March 30, 2020
- NPI status
- Active
- Practice phone
- (615) 355-3451
- 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
Thomas V. John practices at Southeast Louisiana Veterans Healthcare in Baltimore, Maryland
Thomas John's primary practice is Southeast Louisiana Veterans Healthcare, at 22 S Greene St, Baltimore, MD 21201 in Baltimore City. The practice phone is (615) 355-3451.
- Southeast Louisiana Veterans Healthcare22 S Greene St, Baltimore, MD 21201 · Baltimore CityPhone(615) 355-3451
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Thomas V. John is affiliated with 2 sites of care and 1 medical group
Thomas John's primary practice is Southeast Louisiana Veterans Healthcare in Baltimore, Maryland. Thomas John is also affiliated with University of Maryland Medical Center. The medical group on file is University of Maryland Medical Center Gastroenterology and Hepatology.
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 Thomas V. John's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Thomas John practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southeast Louisiana Veterans Healthcare | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Thomas V. John is one of 3,320 internists in Maryland
Internal medicine is Thomas John's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Thomas John is licensed in Maryland.
Specialties and state licenses
- Internal medicine, MarylandPrimary
Internists near Thomas John
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
Thomas V. John billed Medicare for 173 services in 2024
CMS data shows 173 Medicare services from Thomas John across 4 procedure codes in 2024, for 69 Medicare patients. Medicare paid $13,524 for them. Every service was in a facility, such as a hospital, rather than an office.
Thomas John's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1112024: 13522%
- Other services
- 2023: 292024: 3831%
Thomas John compared with the Maryland median for internists, 2024
- Thomas John
- Maryland median
- Medicare services
- 173vs 65674% below
- Medicare patients
- 69vs 25173% below
Medians across 3,215 internists in Maryland with Dmand AI profiles that report each measure.
Thomas John'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 Thomas John?
Medicare shows one payer. Book a meeting to get commercial claims data for Thomas John and other internists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Thomas V. John treated 69 Medicare patients in 2024, average age 67
CMS counts 69 Medicare patients who saw Thomas John in 2024. The largest group is under 65, with 24 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 46% are also on Medicaid. Their average risk score is 4.60, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Thomas John's median patient age at 59, with 25% women.
Thomas John's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Thomas John's Medicare patients by sex, 2024
- Women3043%
- Men3957%
Chronic conditions among Thomas John's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes62%
- Chronic kidney disease61%
- Heart failure52%
- Ischemic heart disease51%
- Arthritis48%
- Mood disorders46%
Share of Medicare patients with each condition. A patient can have several.
Thomas John's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women25%
- Men75%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Thomas V. John wrote 53 Medicare Part D claims in 2024
In 2024, Thomas John wrote 53 Medicare Part D claims for 17 patients. 87% of them were for generic drugs.
Thomas John's Part D claims by kind of drug, 2024
- Generic46 claims87%
- Brand-name and other7 claims13%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Thomas V. John has 6 publications on record
Dmand AI links 6 papers to Thomas John, published from 2011 to 2024. 2023 was the busiest year, with 2. The most frequent topics are Arthroplasty, Replacement, Knee, Knee Prosthesis and Pulmonary Embolism. Thomas John's most frequent co-authors are Rafael S. Cires-Drouet, MD, Bartley Perry Griffith, MD and Kevin Michael Jones, MD.
Thomas John's papers by year, 2011 to 2024
Topics Thomas John writes about most
- Arthroplasty, Replacement, Knee
- Knee Prosthesis
- Pulmonary Embolism
- Tibia
Thomas John's most frequent co-authors
- Rafael S. Cires-Drouet, MD2 shared papers
- Bartley Perry Griffith, MD2 shared papers
- Kevin Michael Jones, MD2 shared papers
Recent publications by Thomas John
J Vasc Surg Venous Lymphat Disord
Thromb Res
J Arthroplasty
J Orthop Res
See who Thomas John researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Thomas John works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Thomas V. John received $679 in industry payments in 2025
CMS Open Payments shows 11 general payments to Thomas John from 9 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. BridgeBio Pharma, Inc. paid the most, $147.
Companies that paid Thomas John the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Thomas V. John graduated from Tulane University School of Medicine
Thomas John graduated from Tulane University School of Medicine in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Thomas V. John'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 (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 |
| 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 Thomas V. John
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Thomas V. John's NPI number?
Thomas V. John's NPI number is 1851929533. It was assigned on March 30, 2020, and it is active in the NPI Registry.
What does Thomas V. John specialize in?
Thomas V. John is an internist in Baltimore, Maryland. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Thomas V. John practice?
Thomas John practices at 22 S Greene St, Baltimore, MD 21201. Thomas John's primary practice is Southeast Louisiana Veterans Healthcare in Baltimore, Maryland.
What is Thomas V. John's office phone number?
The practice phone on file for Thomas John is (615) 355-3451.
What is Thomas V. John's medical license number?
Thomas John holds Maryland license D97834.
Which hospitals is Thomas V. John affiliated with?
Thomas John is affiliated with University of Maryland Medical Center.
What medical group is Thomas V. John part of?
Thomas John is linked to University of Maryland Medical Center Gastroenterology and Hepatology.
Does Thomas V. John accept Medicare?
Yes. CMS data shows Thomas John billed Medicare for 173 services in 2024.
How many Medicare patients does Thomas V. John see?
CMS counts 69 Medicare patients who saw Thomas John in 2024, with an average age of 67.
What services does Thomas V. John bill to Medicare?
In 2024, Thomas John's most billed Medicare services were hospital inpatient care (99233), medicare service (G0316) and hospital inpatient care (99232).
Show 5 more questionsShow fewer questions
Where did Thomas V. John go to medical school?
Thomas John graduated from Tulane University School of Medicine in 2020.
Has Thomas V. John received payments from drug or device companies?
CMS Open Payments shows $679 in general payments to Thomas John from 9 companies from 2025 to 2025. The largest total came from BridgeBio Pharma, Inc.
How long has Thomas V. John been practicing?
Thomas John graduated from medical school in 2020, 6 years ago.
Does Thomas V. John do research?
Dmand AI links 6 publications to Thomas John, published from 2011 to 2024.
Who does Thomas V. John publish with?
Thomas John's most frequent co-authors are Rafael S. Cires-Drouet, MD (2 shared papers), Bartley Perry Griffith, MD (2 shared papers) and Kevin Michael Jones, MD (2 shared papers).
Selling to internal medicine practices?
See internists in Maryland by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card