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DEAN HORIEH
NPI 1811441975
Nurse Anesthetist, Certified Registered in Riverside, CA

Active since August 06, 2016Accepts Medicare Assignment
4445 MAGNOLIA AVE, RIVERSIDE, CA 92501(951) 788-3000 Get Directions Write a Review

NPPES record last updated: January 27, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 27, 2021, Jul 10, 2019, Jan 17, 2017 (3 updates tracked since 2017).

About Dean Horieh NPPES

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

DEAN HORIEH (NPI 1811441975) is an individual nurse anesthetist, certified registered in Riverside, California, licensed in California (95000666) and active in the NPI registry since August 2016. He maintains 2 additional practice locations and is a graduate of Other (2016).

NPPES Registry Identity

NPI1811441975
Entity TypeIndividualMale
Primary Taxonomy367500000X
Provider Legal NameDEAN HORIEH
Location Address4445 MAGNOLIA AVERiverside, CA 92501-4135
Mailing Address12263 Chorus DrRancho Cucamonga, CA 91739-8757 · (318) 729-2230
Phone(951) 788-3000
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateAugust 6, 2016
Last NPPES UpdateJanuary 27, 20213 updates tracked since enumeration
NPPES CertifiedJanuary 11, 2021
✔ NPI 1811441975 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
Licenses✔ Licensed in CA · 95000666✔ Licensed in LA · AP09500
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
Also ListedRegistered NurseTaxonomy 163W00000X · License 731704 (CA)
4445 MAGNOLIA AVE, Riverside, CA 92501
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Secondary Practice Locations 2

Location 111450 Church St, apt 155Rancho Cucamonga, CA 91730-3974 · Phone (318) 729-2230
Location 21444 Peterman DrAlexandria, LA 71301-3432 · Phone (318) 442-5399 · Fax (318) 442-1586

Other Identifiers 1

Medicaid2493906LA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CHRISTUS Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dean Horieh is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4183907868
PECOS Enrollment IDI20170202001742

Medicare Billing Reassignments

5

Medicare enrollment records show Dean Horieh reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Bairos Nursing Anesthesia,inc
14 mi
Nurse Anesthetist, Certified Registered
429 MARILYN LN
Redlands, CA 92373
  • Reassigned Medicare billing, California enrollment
  • 21 clinicians in this Medicare group
NPI 1861744161 (951) 312-8034
Lgibson Anesthesia Inc
14 mi
Nurse Anesthetist, Certified Registered
9674 ARCHIBALD AVE STE 125
Rancho Cucamonga, CA 91730
  • Reassigned Medicare billing, California enrollment
  • 66 clinicians in this Medicare group
NPI 1417473323 (909) 296-8930
Horieh Anesthesia Services
30 mi
Nurse Anesthetist, Certified Registered
5 HOLLAND, STE 101
Irvine, CA 92618
  • Reassigned Medicare billing, California enrollment
  • 24 clinicians in this Medicare group
NPI 1346953007 (949) 588-2190
Aria Anesthesia Group Inc
39 mi
Pain Medicine
18400 US HIGHWAY 18 STE B
Apple Valley, CA 92307
  • Reassigned Medicare billing, California enrollment
  • 30 clinicians in this Medicare group
NPI 1407124712 (949) 588-2190
Coachella Valley Anesthesia A Professional Corporation
135 mi
Anesthesiology
420 34TH ST
Bakersfield, CA 93301
  • Reassigned Medicare billing, California enrollment
  • 183 clinicians in this Medicare group
NPI 1013662048 (760) 538-5898

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
116 services111 patients
Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
14 services14 patients
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92501 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$136.04 typical visit price
range $59.60 – $179.42
Typical copayment $34.01 (range $14.90 – $44.85)
Most-billed visit code 99204
Established Patient
$74.08 typical visit price
range $19.37 – $146.42
Typical copayment $18.52 (range $4.84 – $36.60)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

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

MR. DAVID W LEVINE PA-C
Physician Assistant
4445 MAGNOLIA AVE
RIVERSIDE, CA 92501
Riverside County (951) 788-3381
STEVEN GREGORY PARKIN MD
Student in an Organized Health Care Education/Training Program
4445 MAGNOLIA AVE
RIVERSIDE, CA 92501
Riverside County (951) 788-3000
JAGMEET SINGH ARORA
Student in an Organized Health Care Education/Training Program
4445 MAGNOLIA AVE
RIVERSIDE, CA 92501
Riverside County (951) 966-8398
ASHFI HOQUE
Family Medicine
4445 MAGNOLIA AVE
RIVERSIDE, CA 92501
Riverside County (951) 495-9994
ALINA S POPA MD
Hospitalist
4445 MAGNOLIA AVE
RIVERSIDE, CA 92501
Riverside County (951) 788-3636
RIVERSIDE RADIOLOGY MEDICAL GROUP, INC
Radiology (Diagnostic Radiology)
4445 MAGNOLIA AVE
RIVERSIDE, CA 92501
Riverside County (951) 788-3400
RUSHIL ANIL PATEL
Emergency Medicine
4445 MAGNOLIA AVE
RIVERSIDE, CA 92501
Riverside County (951) 788-3000
YASMINE KASIRI DO
Student in an Organized Health Care Education/Training Program
4445 MAGNOLIA AVE
RIVERSIDE, CA 92501
Riverside County (951) 990-5799

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 Dean Horieh's NPI number?

The NPI number for Dean Horieh is 1811441975. It was assigned to this individual provider in the NPPES registry on August 6, 2016.

Where is Dean Horieh located?

Dean Horieh practices at 4445 Magnolia Ave, Riverside, CA 92501. The listed phone number is (951) 788-3000.

What is Dean Horieh's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Dean Horieh enrolled in Medicare?

Yes. Dean Horieh is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Dean Horieh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dean Horieh reassigns Medicare benefits to 5 organizations: Bairos Nursing Anesthesia,inc (Redlands, CA), Lgibson Anesthesia Inc (Rancho Cucamonga, CA), Horieh Anesthesia Services (Irvine, CA), Aria Anesthesia Group Inc (Apple Valley, CA) and Coachella Valley Anesthesia A Professional Corporation (Bakersfield, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Dean Horieh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Dean Horieh accept?

Health plans from CHRISTUS Health Plan list Dean Horieh as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Dean Horieh was last updated on January 27, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.