Sandra Dee Zelonis, MD
Internal Medicine Physician · Florence, SC
Sandra Dee Zelonis, MD is an internal medicine physician with a practice address in Florence, South Carolina, and NPI 1528528858, issued on Mar 22, 2019. Check the license (South Carolina 88126, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Sandra Dee Zelonis
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 88126 SC
Self-reported in NPPES; status is on the state search - Practice location
- 555 E Cheves St, Florence, SC 29506
- Phone
- (843) 777-2000
- Enumerated
- Mar 22, 2019
- Record last updated
- May 6, 2026
- Medicare enrollment
- Enrolled (PECOS I20220907001051); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,881 in South Carolina → Look up another NPI →
Also registered at 555 E Cheves St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tonya Alexander, FNP-BCHospice and Palliative Medicine (Internal Medicine) Physician1134606221
Verify Sandra Dee Zelonis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 88126Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Mcleod Loris Seacoast HospitalLoris, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sandra Dee Zelonis among 1,881 internal medicine physician records in South Carolina
Sandra Dee Zelonis, MD is one of 1,881 internal medicine physician records with a practice address in South Carolina. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 72% of them.
- NPI issued2019 · 72% of these records are older, 26% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2019 · median 2006 among the 1,119 with a school on file
- Record last updated2026 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
62 internal medicine physician records list a practice address in Florence
They are 62 of the 2,634 NPPES records with a practice address in Florence, and 1,881 internal medicine physician records in South Carolina.
All 1,881 in South Carolina → Every provider in Florence → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Bennie Baker, M.D.Florence, SC 295061710987045
- Beth Cardosi, D.O.Florence, SC 295061932162443
- Victor Collier, M.D.Florence, SC 295061396782900
- Paul Demarco, MDFlorence, SC 295061568480671
- Samuel Dozier, MDFlorence, SC 295061043283039
- William Hazelwood, MDFlorence, SC 295061083687552
- Constance Lynne Maroney, MDFlorence, SC 295061821293093
- Carolyn Reynolds, MDFlorence, SC 295061013989508
Common questions
What is Sandra Dee Zelonis, MD's NPI number?
Sandra Dee Zelonis, MD's National Provider Identifier (NPI) is 1528528858, issued on Mar 22, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Sandra Dee Zelonis, MD located?
The NPPES record lists a practice address at 555 E Cheves St, Florence, SC, 29506. Phone: (843) 777-2000. Providers update this record themselves, so call before visiting.
How can I verify Sandra Dee Zelonis, MD's license?
NPPES lists South Carolina license number 88126, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.