Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Chi-Na Pak, M.D.

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

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

National Provider Identifier

1104915388

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Registry record

Entity type Individual (Type 1)

Name Dr. Chi-Na Pak

Credential M.D.

Sex Female

Practice address 2500 Merced St, Adult Medicine Clinic, San Leandro, CA, 94577

Phone (510) 454-2305

Enumeration date Oct 12, 2006

Last updated in NPPES Dec 15, 2021

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License D64944 (MD) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A115500 (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 Chi-Na Pak's NPI record?

Cross-check NPI 1104915388 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1104915388 active?

Yes, as of the latest NPPES snapshot, NPI 1104915388 is active (record last updated 2021-12-15).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-15.