Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Constance Wenjui Lo, MD

Internal Medicine Physician in San Jose, CA · enumerated 2006.

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

National Provider Identifier

1033175997

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Registry record

Entity type Individual (Type 1)

Name Constance Wenjui Lo

Credential MD

Sex Female

Practice address 2400 Moorpark Ave, Vhc Moorpark Internal Medicine Clinic, San Jose, CA, 95128

Phone (408) 885-5000

Enumeration date Apr 20, 2006

Last updated in NPPES Apr 29, 2008

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A72854 (CA) Primary

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

Other identifiers

Identifier	Type	State	Issuer
00A728540	Medicaid	CA	-

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

Is NPI 1033175997 active?

Yes, as of the latest NPPES snapshot, NPI 1033175997 is active (record last updated 2008-04-29).

How do I verify Constance Lo's NPI record?

Cross-check NPI 1033175997 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-29.