Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

John Vann

Individual provider Cardiovascular Disease Physician · NPI 1326415050

John Vann practises Advanced Heart Failure and Transplant Cardiology in Tulsa, Oklahoma. Graduated from Lincoln Memorial University Medical Department in 2015, 11 years ago. Practices with Warren Clinic Inc, a 772-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Oklahoma.

Years since qualifying
11
Trained at
Lincoln Memorial University Medical Department
Licensed in
OK
In the registry since
2015
Specialties on file
2
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Practice location Address checks out

6151 S Yale Ave Ste 100A
Tulsa, OK 74136-1929
Phone: (918) 494-8500
Fax: (918) 307-5578
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Advanced Heart Failure and Transplant Cardiology Physician (primary) Taxonomy 207RA0001X · Licence 6065 (OK)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 6065 (OK)

Record details

NPI number1326415050
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedAugust 28, 2015
Last updated in NPPESAugust 31, 2023
Certification dateAugust 31, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyADVANCED HEART FAILURE AND TRANSPLANT CARDIOLOGY
Medical schoolLINCOLN MEMORIAL UNIVERSITY MEDICAL DEPARTMENT
Graduated 2015 (11 years in practice)
Group practice Warren Clinic Inc — 772 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients2,214
Services billed 3,584 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $1,953 52 payments · a meal or drink at a meeting or visit, not a fee
Travel and Lodging $1,003 4 payments · travel or lodging paid or reimbursed, such as to attend a conference

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Warren Clinic Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 772 clinicians in the practice; 12 are shown here.

Other providers in Tulsa