Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

James Clay Hays Jr., MD

Individual provider Cardiovascular Disease Physician · NPI 1912943945

James Clay Hays Jr., MD is registered under Cardiovascular Disease (Cardiology) in Jackson, Mississippi. Graduated from University of Mississippi School of Medicine in 1991, 35 years ago. Practices with St Dominic Jackson Memorial, a 55-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Mississippi.

Years since qualifying
35
Trained at
University of Mississippi School of Medicine
Licensed in
MS
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

970 Lakeland Dr SUITE61
Jackson, MS 39216-4635
Phone: (601) 982-7850
Fax: (601) 718-5145
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 969 Lakeland Dr, Jackson, MS 39216-4606 — (601) 200-2000

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 13178 (MS)
Interventional Cardiology Physician Taxonomy 207RI0011X · Licence 13178 (MS)

Record details

NPI number1912943945
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 20, 2006
Last updated in NPPESJanuary 22, 2025
Certification dateJanuary 22, 2025

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolUNIVERSITY OF MISSISSIPPI SCHOOL OF MEDICINE
Graduated 1991 (35 years in practice)
Group practice St. Dominic Jackson Memorial — 55 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients1,846
Services billed 23,215 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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 $2,029 57 payments · a meal or drink at a meeting or visit, not a fee
Travel and Lodging $1,001 3 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 St Dominic Jackson Memorial

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 55 clinicians in the practice; 12 are shown here.

Other providers in Jackson