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

John Warren Holshouser, MD

Individual provider Internal Medicine Physician · NPI 1568474351

John Warren Holshouser, MD practises Cardiac Electrophysiology in Charlotte, North Carolina. Graduated from University of North Carolina at Chapel Hill School of Medicine in 1996, 30 years ago. Practices with Carolinas Physicians Network Inc, a 2,328-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in North Carolina.

Years since qualifying
30
Trained at
University of North Carolina at Chapel Hill School of Medicine
Licensed in
NC
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1237 Harding Pl Ste 3100
Charlotte, NC 28204
Phone: (704) 373-0212
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 10650 Park Rd, Charlotte, NC 28210-8538 — (704) 667-3840
  • 101 E W T Harris Blvd, Charlotte, NC 28262-3485 — (704) 863-1950
  • 447 McAlister Rd, Lincolnton, NC 28092-4114 — (980) 212-6300
  • 134 Medical Park Rd, Mooresville, NC 28117-8526 — (704) 801-9100

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 200000461 (NC)
Internal Medicine Physician Taxonomy 207R00000X · Licence 200000461 (NC)
Clinical Cardiac Electrophysiology Physician Taxonomy 207RC0001X · Licence 200000461 (NC)

Record details

NPI number1568474351
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 12, 2006
Last updated in NPPESJuly 23, 2024

Medicare enrollment

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

Medicare specialtyCARDIAC ELECTROPHYSIOLOGY
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolUNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL SCHOOL OF MEDICINE
Graduated 1996 (30 years in practice)
Group practice Carolinas Physicians Network Inc — 2328 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations22 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Pacemaker insertion or repair 32 times · 80th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients1,406
Services billed 3,774 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

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 $676 17 payments · a meal or drink at a meeting or visit, not a fee

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. Those with a page here are linked.

Colleagues at Carolinas Physicians Network Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2328 clinicians in the practice; 12 are shown here.

Other providers in Charlotte