1. Home
  2. Directory
  3. California
  4. Fullerton
  5. Clinic Center
  6. NPI Profile

PREFERRED SLEEP DIAGNOSTICS
NPI 1104369503
Clinic/Center - Sleep Disorder Diagnostic in Fullerton, CA

Active since December 02, 2016
100 LAGUNA RD, STE 205, FULLERTON, CA 92835(714) 525-6500(714) 489-8140 Get Directions Write a Review

NPPES record last updated: December 2, 2016. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Preferred Sleep Diagnostics NPPES

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

PREFERRED SLEEP DIAGNOSTICS (NPI 1104369503) is a healthcare organization registered as a sleep disorder diagnostic in Fullerton, California and active in the NPI registry since December 2016. The organization lists Nathaniel Gumm, Ceo, as its authorized official.

NPPES Registry Identity

NPI1104369503
Entity TypeOrganization
Primary Taxonomy261QS1200X
Legal Business NamePREFERRED SLEEP DIAGNOSTICS
Location Address100 LAGUNA RD, STE 205Fullerton, CA 92835-3633
Mailing Address100 Laguna Rd, Ste 205Fullerton, CA 92835-3633 · (714) 525-6500 · Fax (714) 489-8140
Phone(714) 525-6500
Fax(714) 489-8140
Organization SubpartNo
Authorized OfficialNathaniel GummCeo · (714) 525-6500
Enumeration DateDecember 2, 2016
✔ NPI 1104369503 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Sleep Disorder DiagnosticAmbulatory Health Care Facilities
Taxonomy Code261QS1200X
100 LAGUNA RD, Fullerton, CA 92835
Open in Google Maps ↗

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JACK H FLORIN MD INC
Physician Assistant (Medical)
100 LAGUNA RD, SUITE 208
FULLERTON, CA 92835
Orange County (714) 738-0800
PREFERRED SLEEP SOLUTIONS
Clinic/Center (Sleep Disorder Diagnostic)
100 LAGUNA RD, 205
FULLERTON, CA 92835
Orange County (949) 278-3356
DR. HERCULES JOEL REAL D.D.S.
Dentist (General Practice)
100 LAGUNA RD, STE 202
FULLERTON, CA 92835
Orange County (714) 525-2888
MOHAMMAD ALI ZAREH DDS INC
Dentist
100 LAGUNA RD, SUITE 210
FULLERTON, CA 92835
Orange County (714) 526-3655
MS. KELLIE MARIE SIMPSON MS NP
Nurse Practitioner
100 LAGUNA RD, SUITE 208
FULLERTON, CA 92835
Orange County (714) 738-0800
MR. JACK HUGH FLORIN MD
Psychiatry & Neurology (Neurology)
100 LAGUNA RD, STE 208
FULLERTON, CA 92835
Orange County (714) 738-0800

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 Preferred Sleep Diagnostics's NPI number?

The NPI number for Preferred Sleep Diagnostics is 1104369503. It was assigned to this organization in the NPPES registry on December 2, 2016.

Where is Preferred Sleep Diagnostics located?

Preferred Sleep Diagnostics is located at 100 Laguna Rd Ste 205, Fullerton, CA 92835. The listed phone number is (714) 525-6500.

What is Preferred Sleep Diagnostics's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Sleep Disorder Diagnostic, with taxonomy code 261QS1200X.

When was this NPI record last updated?

The NPPES record for Preferred Sleep Diagnostics was last updated on December 2, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years 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.