Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Arnold Lewis Isaacson, D.P.M.

Foot Surgery Podiatrist in Jefferson Valley, NY · enumerated 2006.

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

National Provider Identifier

1205990017

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Registry record

Entity type Individual (Type 1)

Name Dr. Arnold Lewis Isaacson

Credential D.P.M.

Sex Male

Practice address 3630 Hill Blvd, Suite 104, Jefferson Valley, NY, 10535

Phone (914) 962-5571

Fax (914) 962-5574

Enumeration date Dec 19, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

213ES0131X Foot Surgery Podiatrist Podiatric Medicine & Surgery Service Providers · License N003506 (NY) Primary

DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle. About the DPM 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 Arnold Isaacson?

Arnold Isaacson is registered in NPPES with the primary taxonomy of Foot Surgery Podiatrist. 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 2007-07-08.