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RIO VISTA SURGICAL ASSOCIATES, P.C.
NPI 1699765834
Surgery in Lake Havasu City, AZ

Active since October 27, 2005
90 RIVIERA DR, LAKE HAVASU CITY, AZ 86403(928) 453-2900(877) 864-6566 Get Directions Write a Review

NPPES record last updated: April 13, 2017. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Rio Vista Surgical Associates, P.c. NPPES

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

RIO VISTA SURGICAL ASSOCIATES, P.C. (NPI 1699765834) is a healthcare organization registered as a surgery in Lake Havasu City, Arizona and active in the NPI registry since October 2005. The organization lists Abedon Abe Saiz, Md/owner, as its authorized official.

NPPES Registry Identity

NPI1699765834
Entity TypeOrganization
Primary Taxonomy208600000X
Legal Business NameRIO VISTA SURGICAL ASSOCIATES, P.C.
Location Address90 RIVIERA DRLake Havasu City, AZ 86403-5716
Mailing Address90 Riviera DrLake Havasu City, AZ 86403-5716 · (928) 453-2900 · Fax (877) 864-6566
Phone(928) 453-2900
Fax(877) 864-6566
Organization SubpartNo
Authorized OfficialAbedon Abe SaizMd/owner · (928) 453-2900
Enumeration DateOctober 27, 2005
Last NPPES UpdateApril 13, 2017
✔ NPI 1699765834 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in AZ · 24387
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
Also ListedSurgery · Vascular SurgeryTaxonomy 2086S0129X · License 24387 (AZ)
90 RIVIERA DR, Lake Havasu City, AZ 86403
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Other Identifiers 3

Medicare UPINF90041
Medicare PINZ66784AZ
Medicaid423878AZ

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

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rio Vista Surgical Associates, P.c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Rio Vista Surgical Associates, P.C., which bills Medicare for the services this clinician delivers.

Clinician (1)

Abedon Saiz, MD
General Surgery
NPI 1477542934
90 RIVIERA DR
Lake Havasu City, AZ 86403
(928) 453-2900
✔ PECOS✔ Accepts MedicareSame address

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

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 Rio Vista Surgical Associates, P.C.'s NPI number?

The NPI number for Rio Vista Surgical Associates, P.C. is 1699765834. It was assigned to this organization in the NPPES registry on October 27, 2005.

Where is Rio Vista Surgical Associates, P.C. located?

Rio Vista Surgical Associates, P.C. is located at 90 Riviera Dr, Lake Havasu City, AZ 86403. The listed phone number is (928) 453-2900.

What is Rio Vista Surgical Associates, P.C.'s specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is Rio Vista Surgical Associates, P.C. enrolled in Medicare?

Yes. Rio Vista Surgical Associates, P.C. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Rio Vista Surgical Associates, P.C.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (General Surgery) reassigns their Medicare billing to Rio Vista Surgical Associates, P.C.. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Rio Vista Surgical Associates, P.C. was last updated on April 13, 2017. 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.