NPI Portal NPI Lookup & Verification

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

Dr. Lars H Hertzog, M.D., F.A.C.S.

Ophthalmology Physician in Long Beach, CA · enumerated 2006.

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

National Provider Identifier

1629164454

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Registry record

Entity type Individual (Type 1)
Name Dr. Lars H Hertzog
Credential M.D., F.A.C.S.
Sex Male
Practice address Long Beach, CA, 90806
Phone (562) 426-1773
Fax (562) 427-6228
Enumeration date Oct 5, 2006
Last updated in NPPES Mar 12, 2008

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

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License A71446 (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
00A714460 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.

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Frequently asked questions

How do I verify Lars Hertzog's NPI record?
Cross-check NPI 1629164454 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1629164454 active?
Yes, as of the latest NPPES snapshot, NPI 1629164454 is active (record last updated 2008-03-12).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-03-12.