NPPES file of Aug 9, 2026

Caleb Hunter Holswade Martin, DO

Internal Medicine Physician · Charleston, WV

Caleb Hunter Holswade Martin, DO is an internal medicine physician with a practice address in Charleston, West Virginia, and NPI 1235872581, issued on Apr 14, 2022. Check the license (West Virginia 4548, as entered in NPPES) on the West Virginia Board of Medicine; 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
1235872581
Name
Caleb Hunter Holswade Martin
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
4548 WV
Self-reported in NPPES; status is on the state search
Practice location
3100 Maccorkle Ave SE Ste 700, Charleston, WV 25304
Phone
(304) 351-1500
Enumerated
Apr 14, 2022
Record last updated
Mar 30, 2026
Fax
(304) 351-1510
Medicare enrollment
Enrolled (PECOS I20251008004271); accepts Medicare assignment
Medical or professional school
West Virginia School Of Osteopathic Medicine, 2022
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 3100 Maccorkle Ave SE Ste 700

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

  1. Chase Arnold, FNP-BCFamily Nurse Practitioner1326923582
  2. Charles Babcock, PHARM D, RPHPharmacist1144437708
  3. Ilia Bernstein, M.D.Endocrinology, Diabetes & Metabolism Physician1881049146
  4. Waleed Butt, M.D.Endocrinology, Diabetes & Metabolism Physician1992231146
  5. Brittany Cox, FNP-BCFamily Nurse Practitioner1033810775
  6. Samantha Demartino, DOStudent in an Organized Health Care Education/Training Program1144012014

Verify Caleb Hunter Holswade Martin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWest Virginia Board of Medicine
    Search for license 4548
    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 West Virginia 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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80% fewer Medicare Part D claims than the average internal medicine physician in 2024

640 Medicare Part D claims for 78 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 32 claims were for opioids.

  1. Caleb Martin640
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium47 claims
  2. Losartan Potassium35 claims
  3. Amlodipine Besylate31 claims
  4. Omeprazole28 claims
  5. Gabapentin23 claims
  6. Hydrocodone-Acetaminophen21 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.

Bills Medicare through one group practice

  1. Charleston Area Medical Center IncCharleston, WV

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

Caleb Hunter Holswade Martin among 754 internal medicine physician records in West Virginia

Caleb Hunter Holswade Martin, DO is one of 754 internal medicine physician records with a practice address in West Virginia. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 93% of them.

  • NPI issued2022 · 93% of these records are older, 3% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2022 · median 2010 among the 487 with a school on file
  • Record last updated2026 · 43% 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 West Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

107 internal medicine physician records list a practice address in Charleston

They are 107 of the 8,807 NPPES records with a practice address in Charleston, and 754 internal medicine physician records in West Virginia.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Roy Bowden, DOCharleston, WV 253041174594642
  2. John Brehm, MDCharleston, WV 253041669436028
  3. James Campbell, M.D.Charleston, WV 253041982614186
  4. Shawn Chillag, M.D.Charleston, WV 253041821065004
  5. Thopsie Jagannath, MDCharleston, WV 253041043257629
  6. Medard Lefevre, MDCharleston, WV 253041447214846
  7. Diana Martin, M.D.Charleston, WV 253041720004062
  8. Kathleen Mimnagh, M.D.Charleston, WV 253041295743839

Common questions

What is Caleb Hunter Holswade Martin, DO's NPI number?

Caleb Hunter Holswade Martin, DO's National Provider Identifier (NPI) is 1235872581, issued on Apr 14, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Caleb Hunter Holswade Martin, DO located?

The NPPES record lists a practice address at 3100 Maccorkle Ave SE Ste 700, Charleston, WV, 25304. Phone: (304) 351-1500. Providers update this record themselves, so call before visiting.

How can I verify Caleb Hunter Holswade Martin, DO's license?

NPPES lists West Virginia license number 4548, as entered by the provider. Search the West Virginia Board of Medicine at https://wvbom.wv.gov/public/search/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Caleb Hunter Holswade Martin, DO prescribe under Medicare Part D?

In 2024, Caleb Hunter Holswade Martin, DO had 640 Medicare Part D claims for 78 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.