Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

ARUN SUBASH MD
NPI 1750209961
Internal Medicine in Saint Louis, MO

Q: What is Arun Subash's NPI number?

The NPI number for Arun Subash is 1750209961. It was assigned to this individual provider in the NPPES registry on July 7, 2026.

Q: What is Arun Subash's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for Arun Subash was last updated on July 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 07, 2026

621 S NEW BALLAS RD STE 3019B, SAINT LOUIS, MO 63141(314) 509-5305(314) 251-4454 Get Directions Write a Review

NPPES record added: July 7, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Arun Subash Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ARUN SUBASH MD (NPI 1750209961) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (2026019354) and active in the NPI registry since July 2026.

NPPES Registry Identity

NPI1750209961

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameARUN SUBASHCredential: MD

Location Address621 S NEW BALLAS RD STE 3019BSaint Louis, MO 63141-8267

Mailing Address621 S New Ballas Rd Ste 3019bSaint Louis, MO 63141-8267 · (314) 509-5305 · Fax (314) 251-4454

Phone(314) 509-5305

Fax(314) 251-4454

Sole ProprietorYes

Enumeration DateJuly 7, 2026

NPPES CertifiedJuly 7, 2026

✔ NPI 1750209961 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in MO · 2026019354

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

621 S NEW BALLAS RD STE 3019B, Saint Louis, MO 63141

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. CHRISTOPHER SAMAAN MD

Internal Medicine