NPI Portal NPI Lookup & Verification

Dr. Ari H Pollack, MD

Dr. Ari H Pollack is a Pediatric Nephrology Physician provider (Pediatrics) practicing in Seattle, WA, registered in the NPPES registry with NPI 1821087404 since 2005. The credential MD stands for Doctor of Medicine.

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NPI 1821087404
Entity type Individual (Type 1)
Name Dr. Ari H Pollack
Credential MD
Sex Male
Practice address 4800 SAND POINT WAY NE # OC.9820, Seattle, WA, 98105
Phone 2069872524
Fax 2069873626
Enumeration date 2005-10-17
Last updated in NPPES 2020-12-04

Taxonomy & licenses

Taxonomy code Specialty Primary License State
2080P0210X Pediatric Nephrology Physician Primary MD00045371 WA

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Copy-ready billing details
Provider: Ari Pollack, MD
NPI: 1821087404
Taxonomy: 2080P0210X (Pediatric Nephrology Physician)
Address: 4800 SAND POINT WAY NE # OC.9820, Seattle, WA, 98105

Verify this record

Cross-check NPI 1821087404 against the authoritative CMS record: view Dr. Ari H Pollack on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

What specialty is Ari Pollack?
Ari Pollack is registered in NPPES with the primary taxonomy of Pediatric Nephrology 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-12-04.