NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mei Y Chow-Kwan, MD

Internal Medicine Physician in Walnut Creek, CA · enumerated 2006 · practices at Walnut Creek Medical Group.

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

National Provider Identifier

1689619330

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mei Y Chow-Kwan
Credential MD
Sex Female
Practice address 2621 Shadelands Drive, Walnut Creek, CA, 94598
Phone (925) 947-0417
Enumeration date Jun 17, 2006
Last updated in NPPES Jun 18, 2015

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A50662 (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

What is the NPI number for Mei Chow-Kwan?
The National Provider Identifier (NPI) for Mei Chow-Kwan is 1689619330, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mei Chow-Kwan practice?
The practice location on file with NPPES is in Walnut Creek, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-06-18.