NPPES file of Aug 9, 2026

Brian Matthew Martin, DO

Internal Medicine Physician · Charleston, SC

Brian Matthew Martin, DO is an internal medicine physician with a practice address in Charleston, South Carolina, and NPI 1750952552, issued on Jul 2, 2021. Check the license (South Carolina 91394, 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
1750952552
Name
Brian Matthew Martin
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
91394 SC
Self-reported in NPPES; status is on the state search
Practice location
316 Calhoun St, Charleston, SC 29401
Phone
(843) 724-2000
Enumerated
Jul 2, 2021
Record last updated
Jul 23, 2024
Medicare enrollment
Enrolled (PECOS I20240924000855); accepts Medicare assignment
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 316 Calhoun St

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

  1. Taylor AdamPhysician Assistant1902576929
  2. Mary Ann Adiong, RNRegistered Nurse1396694287
  3. Elizabeth Alvarez, NPCritical Care Medicine Nurse Practitioner1295288421
  4. Andrew Anderson, M.D.Diagnostic Radiology Physician1073729711
  5. Selena Anderson, FNPFamily Nurse Practitioner1346737673
  6. Claire Andrew, MS, RDRegistered Dietitian1134970049

Verify Brian Matthew Martin 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 91394
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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89% fewer Medicare Part D claims than the average internal medicine physician in 2024

351 Medicare Part D claims for 96 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Brian Martin351
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate15 claims
  2. Losartan Potassium14 claims
  3. Metoprolol Succinate14 claims
  4. Lisinopril13 claims
  5. Rosuvastatin Calcium13 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: $66.07

3 payments; by number, the most common kind was food and beverage; the largest payer was Otsuka America Pharmaceutical, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Brian Martin$66.07
  2. Specialty average$1,303.06

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. 24 ON Physicians OF SC LLCCharleston, SC

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

Brian Matthew Martin among 1,881 internal medicine physician records in South Carolina

Brian Matthew Martin, DO 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 2021, is newer than 78% of them.

  • NPI issued2021 · 78% of these records are older, 18% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2021 · median 2006 among the 1,119 with a school on file
  • Record last updated2024 · 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).

427 internal medicine physician records list a practice address in Charleston

They are 427 of the 10,840 NPPES records with a practice address in Charleston, and 1,881 internal medicine physician records in South Carolina.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Mary Lou Applebaum, MDCharleston, SC 294011457322042
  2. Athena Beldecos, MDCharleston, SC 294011568428639
  3. Courtney Brady, MDCharleston, SC 294011316055270
  4. John Bride, MDCharleston, SC 294011801864764
  5. Jeanne Campbell, MD PHDCharleston, SC 294011598718678
  6. Scott Davidson, MDCharleston, SC 294011386611861
  7. Jeffery GrimesCharleston, SC 294011194790881
  8. Kwame Iwegbue, MDCharleston, SC 294011255331054

Common questions

What is Brian Matthew Martin, DO's NPI number?

Brian Matthew Martin, DO's National Provider Identifier (NPI) is 1750952552, issued on Jul 2, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Brian Matthew Martin, DO located?

The NPPES record lists a practice address at 316 Calhoun St, Charleston, SC, 29401. Phone: (843) 724-2000. Providers update this record themselves, so call before visiting.

How can I verify Brian Matthew Martin, DO's license?

NPPES lists South Carolina license number 91394, 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 Brian Matthew Martin, DO prescribe under Medicare Part D?

In 2024, Brian Matthew Martin, DO had 351 Medicare Part D claims for 96 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.