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

John Vernon Custer, MD

Individual provider Specialist · NPI 1578679452

John Vernon Custer, MD practises Psychiatry in Charleston, South Carolina. Graduated from University of Kentucky College of Medicine in 1989, 37 years ago. Practices with South Carolina Dept of Mental Health Accounting Office, a 231-clinician group, accepts Medicare assignment and offers telehealth. Licensed in South Carolina.

Years since qualifying
37
Trained at
University of Kentucky College of Medicine
Licensed in
SC
In the registry since
2006
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

1 Poston Rd Ste 145
Charleston, SC 29407-3424 Not confirmed with CMS for 19 years — call before visiting
Phone: (843) 556-4157
Fax: (843) 763-8747
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Specialist (primary) Taxonomy 174400000X · Licence 15084 (SC)

Record details

NPI number1578679452
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 22, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolUNIVERSITY OF KENTUCKY COLLEGE OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice South Carolina Dept Of Mental Health Accounting Office — 231 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients76
Services billed 452 a service is one billed item, such as a visit, a test or a procedure
Average patient age66

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 $570 28 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.

Colleagues at South Carolina Dept of Mental Health Accounting Office

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 231 clinicians in the practice; 12 are shown here.

Other providers in Charleston