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HAROLD R. SMITH, M.D., INC
NPI 1932326022
Psychiatry & Neurology - Sleep Medicine in Irvine, CA

Active since April 19, 2007
4199 CAMPUS DR STE 350, IRVINE, CA 92612(949) 509-7726(949) 509-7834 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 11, 2025, Aug 22, 2020 (2 updates tracked since 2020).

About Harold R. Smith, M.d., Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HAROLD R. SMITH, M.D., INC (NPI 1932326022) is a healthcare organization registered as a sleep medicine in Irvine, California and active in the NPI registry since April 2007. The organization lists Harold Raymond Smith, President, as its authorized official.

NPPES Registry Identity

NPI1932326022
Entity TypeOrganization
Primary Taxonomy2084S0012X
Legal Business NameHAROLD R. SMITH, M.D., INC
Location Address4199 CAMPUS DR STE 350Irvine, CA 92612-4690
Mailing Address4199 Campus Dr Ste 350Irvine, CA 92612-4690 · (949) 509-7726 · Fax (949) 509-7834
Phone(949) 509-7726
Fax(949) 509-7834
Organization SubpartNo
Authorized OfficialHarold Raymond SmithPresident · (949) 509-7726
Enumeration DateApril 19, 2007
Last NPPES UpdateSeptember 11, 20252 updates tracked since enumeration
✔ NPI 1932326022 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · Sleep MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2084S0012X
License✔ Licensed in CA · G43052
Definition
A Psychiatrist or Neurologist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.
Also ListedPsychiatry & Neurology · NeurologyTaxonomy 2084N0400X · License G43052 (CA)

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X MULTIPLE SINGLE SPECIALTY GROUP

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Harold R. Smith, M.D., Inc's NPI number?

The NPI number for Harold R. Smith, M.D., Inc is 1932326022. It was assigned to this organization in the NPPES registry on April 19, 2007.

Where is Harold R. Smith, M.D., Inc located?

Harold R. Smith, M.D., Inc is located at 4199 Campus Dr Ste 350, Irvine, CA 92612. The listed phone number is (949) 509-7726.

What is Harold R. Smith, M.D., Inc's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Sleep Medicine, with taxonomy code 2084S0012X.

When was this NPI record last updated?

The NPPES record for Harold R. Smith, M.D., Inc was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.