NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jacqueline Thanhhuyen Do, M.D.

Internal Medicine Physician in Tustin, CA · enumerated 2006 · practices at Your Integrative Health PC.

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

National Provider Identifier

1689646952

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Registry record

Entity type Individual (Type 1)
Name Dr. Jacqueline Thanhhuyen Do
Credential M.D.
Sex Female
Practice address 1095 Irvine Blvd, Tustin, CA, 92780
Enumeration date Feb 2, 2006
Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License G78274 (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.

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Frequently asked questions

How do I verify Jacqueline Do's NPI record?
Cross-check NPI 1689646952 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1689646952 active?
Yes, as of the latest NPPES snapshot, NPI 1689646952 is active (record last updated 2023-03-07).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.