NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jiewen Yu, D.O.

General Practice Physician in Spring Valley, NY · enumerated 2016 · practices at Medassist Ny Corp.

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

National Provider Identifier

1851845218

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Registry record

Entity type Individual (Type 1)
Name Jiewen Yu
Credential D.O.
Sex Male
Practice address 747 Chestnut Ridge Rd, Spring Valley, NY, 10977
Phone (845) 377-6670
Enumeration date Aug 15, 2016
Last updated in NPPES Feb 23, 2025

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 323719 (NY) Primary
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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Jiewen Yu?
Jiewen Yu is registered in NPPES with the primary taxonomy of General Practice 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 2025-02-23.