Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Juliet Yuan, MD

Emergency Medicine Physician in Newtonville, MA · enumerated 2017.

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

National Provider Identifier

1639602808

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Registry record

Entity type Individual (Type 1)

Name Dr. Juliet Yuan

Credential MD

Sex Female

Practice address 355 Crafts St, Newtonville, MA, 02460

Phone (617) 953-7447

Enumeration date Apr 5, 2017

Last updated in NPPES Aug 30, 2021

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License A171004 (CA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Juliet Yuan's NPI record?

Cross-check NPI 1639602808 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1639602808 active?

Yes, as of the latest NPPES snapshot, NPI 1639602808 is active (record last updated 2021-08-30).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-30.