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

Dr. Ashim Arora, M.D.

Pulmonary Disease Physician in Simi Valley, CA · enumerated 2005 · practices at Ashim Arora A Medical Corporation.

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

National Provider Identifier

1639161581

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Registry record

Entity type Individual (Type 1)
Name Dr. Ashim Arora
Credential M.D.
Sex Male
Practice address Simi Valley, CA, 93065
Phone (805) 584-1930
Fax (805) 584-1932
Enumeration date Aug 17, 2005
Last updated in NPPES Jul 12, 2019

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 A51729 (CA) Secondary
207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License A51729 (CA) Secondary
207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License A51729 (CA) Secondary
207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License A51729 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
00A517290 Medicaid CA -
P00037738 Other - RAILROAD MEDICARE

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 Ashim Arora?
Ashim Arora is registered in NPPES with the primary taxonomy of Pulmonary Disease 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 2019-07-12.