Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. Sandra Dee Zelonis, MD

Individual provider Internal Medicine Physician · NPI 1528528858

Dr. Sandra Dee Zelonis, MD practises Internal Medicine in Florence, South Carolina. Qualified in 2019, 7 years ago. Practices with McLeod Loris Seacoast Hospital, a 56-clinician group and accepts Medicare assignment. Licensed in South Carolina.

Years since qualifying
7
Licensed in
SC
In the registry since
2019
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

555 E Cheves St
Florence, SC 29506-2617
Phone: (843) 777-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 88126 (SC)

Record details

NPI number1528528858
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 22, 2019
Last updated in NPPESMay 6, 2026
Certification dateMay 6, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice McLeod Loris Seacoast Hospital — 56 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients381
Services billed 410 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at McLeod Loris Seacoast Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 56 clinicians in the practice; 12 are shown here.

Other providers in Florence