NPPES file of Aug 9, 2026

Gary S. Gilkeson, MD

Rheumatology Physician · Charleston, SC

Gary S. Gilkeson, MD is a rheumatology physician with a practice address in Charleston, South Carolina, and NPI 1487762423, issued on Aug 29, 2006. Check the license (South Carolina 18479, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1487762423
Name
Gary S. Gilkeson
Credential
MD
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
18479 SC
Self-reported in NPPES; status is on the state search
Practice location
171 Ashley Ave, Charleston, SC 29425
Phone
(843) 792-1414
Enumerated
Aug 29, 2006
Record last updated
Oct 22, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
T24952 SC
Medicare enrollment
Enrolled (PECOS I20050603000832); accepts Medicare assignment
Medical or professional school
University Of Texas Southwestern Medical School At Dallas, 1979
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 171 Ashley Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Andrea Abbott, MDSurgical Oncology Physician1245473354
  2. Miguel Abboud, MDPediatric Hematology & Oncology Physician1619292851
  3. Ahmed Abdelkader, MD, PHDNephrology Physician1629743000
  4. Mohamed Abdelwahab, MDOtolaryngology Physician1528679768
  5. Anne Abel, MDChild Abuse Pediatrics Physician1043328990
  6. Christina Abrams, M.D.Pediatric Hematology & Oncology Physician1376920207

Verify Gary S. Gilkeson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
    Search for license 18479
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the South Carolina license search

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53% fewer Medicare Part D claims than the average rheumatology physician in 2024

936 Medicare Part D claims for 94 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 73 claims were for opioids.

  1. Gary Gilkeson936
  2. Specialty average1,978

Most prescribed

  1. Hydroxychloroquine Sulfate128 claims
  2. Prednisone103 claims
  3. Oxycodone Hcl37 claims
  4. Enbrel35 claims
  5. Humira(Cf) Pen32 claims
  6. Cyclobenzaprine Hcl28 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $4,939.68

3 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gary Gilkeson$4,939.68
  2. Specialty average$8,538.33

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. University Medical Associates OF The Medical University OF South CarolCharleston, SC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Rheumatology Physician providers in South Carolina

There are 128 rheumatology physician records in South Carolina.

Other rheumatology physician records in South Carolina

  1. Mohammed Abdulfatah, MDOrangeburg, SC1285167023
  2. Nirosha AdepuColumbia, SC1669177002
  3. Durga Adhikari, MDSummerville, SC1538319074
  4. Sofia Aksentijevich, MDCharleston, SC1952449290
  5. Ala Mohamad Awad Al-Adamat, M.D.Columbia, SC1912574070
  6. Marcie Alisangco, DOWest Columbia, SC1225222680
  7. Jake Altier, MDCharleston, SC1154983096
  8. Erica Anderson, D.O.Charleston, SC1881782266
  9. Matthew AussprungSpartanburg, SC1396109286
  10. Deanna Baker Frost, M.D., PH.DCharleston, SC1265798722

Common questions

What is Gary S. Gilkeson, MD's NPI number?

Gary S. Gilkeson, MD's National Provider Identifier (NPI) is 1487762423, issued on Aug 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gary S. Gilkeson, MD located?

The NPPES record lists a practice address at 171 Ashley Ave, Charleston, SC, 29425. Phone: (843) 792-1414. Providers update this record themselves, so call before visiting.

How can I verify Gary S. Gilkeson, MD's license?

NPPES lists South Carolina license number 18479, 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.

How much does Gary S. Gilkeson, MD prescribe under Medicare Part D?

In 2024, Gary S. Gilkeson, MD had 936 Medicare Part D claims for 94 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.

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.