Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Melwin Joseph, DO

Internal Medicine Physician in Westmont, IL · enumerated 2018.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1245720671

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Registry record

Entity type Individual (Type 1)

Name Melwin Joseph

Credential DO

Sex Male

Practice address Westmont, IL, 60559

Phone (630) 528-3215

Fax (630) 528-3219

Enumeration date May 10, 2018

Last updated in NPPES Jun 10, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036155762 (IL) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 5101024289 (MI) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 036155762 (IL) Secondary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Melwin Joseph?

Melwin Joseph is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-10.