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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

David Nah, DO

Internal Medicine Physician in Laguna Hills, CA · enumerated 2011 · practices at Oc Family & Industrial Practice.

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

National Provider Identifier

1477847127

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Registry record

Entity type Individual (Type 1)
Name David Nah
Credential DO
Sex Male
Practice address Laguna Hills, CA, 92653
Phone (949) 362-8877
Enumeration date May 29, 2011
Last updated in NPPES May 8, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 20A20968 (CA) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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

Is NPI 1477847127 active?
Yes, as of the latest NPPES snapshot, NPI 1477847127 is active (record last updated 2024-05-08).
How do I verify David Nah's NPI record?
Cross-check NPI 1477847127 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 2024-05-08.