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

Dr. Jonas Aharoni, MD

Internal Medicine Physician in Ridgefield, WA · enumerated 2009.

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

National Provider Identifier

1164659488

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Registry record

Entity type Individual (Type 1)
Name Dr. Jonas Aharoni
Credential MD
Sex Male
Practice address Ridgefield, WA, 98642
Phone (360) 882-2778
Fax (360) 604-1629
Enumeration date Jun 12, 2009
Last updated in NPPES Jul 23, 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 R71541 (AZ) Secondary
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License R71541 (AZ) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD60949450 (WA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

What specialty is Jonas Aharoni?
Jonas Aharoni 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.
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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-07-23.