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MARILYN S GONZALEZ O.D
NPI 1235166109
Optometrist in Las Vegas, NV

Active since June 27, 2006PECOS EnrolledAccepts Medicare Assignment
3300 E. FLAMINGO RD, STE 20, LAS VEGAS, NV 89121(702) 434-9919(702) 319-2158 Get Directions Write a Review

NPPES record last updated: August 13, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Marilyn S Gonzalez O.d NPPES

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

MARILYN S GONZALEZ O.D (NPI 1235166109) is an individual optometrist in Las Vegas, Nevada, licensed in Nevada (375) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (1996).

NPPES Registry Identity

NPI1235166109
Entity TypeIndividualFemale
Primary Taxonomy152W00000X
Provider Legal NameMARILYN S GONZALEZCredential: O.D
Location Address3300 E. FLAMINGO RD, STE 20Las Vegas, NV 89121
Mailing Address3300 E. Flamingo Rd., Ste 20Las Vegas, NV 89121 · (702) 434-9919 · Fax (702) 319-2158
Phone(702) 434-9919
Fax(702) 319-2158
Sole ProprietorYes
Medical School CMSUniversity Of California, Irvine, California College Of MedicineGraduated 1996
Enumeration DateJune 27, 2006
Last NPPES UpdateAugust 13, 2012
✔ NPI 1235166109 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in NV · 375
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
3300 E. FLAMINGO RD, Las Vegas, NV 89121
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Other Names 1

Former Name (1)Marilyn I Saiki

Other Identifiers 3

Medicare UPINU65600NV
Medicare PINV102972NV
Medicaid002502049NV

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and more.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

Marilyn S Gonzalez O.d 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 ID446260632
PECOS Enrollment IDI20060505000154
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Marilyn Gonzalez reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Tamara Gutierrez, LLC
5.5 mi
Optometrist
3870 E FLAMINGO RD STE A3
Las Vegas, NV 89121
  • Reassigned Medicare billing, Nevada enrollment
  • 3 clinicians in this Medicare group
NPI 1003016072 (702) 434-9919
John Chan O.D. PLLC
9.7 mi
Optometrist
695 S GREEN VALLEY PKWY
Henderson, NV 89052
  • Reassigned Medicare billing, Nevada enrollment
  • Medicare enrollment name: John Chan Od PLLC
  • 8 clinicians in this Medicare group
NPI 1588295331 (702) 941-7898

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 89121 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
$131.25 typical visit price
range $57.07 – $173.24
Typical copayment $32.81 (range $14.26 – $43.31)
Most-billed visit code 99204
Established Patient
$71.14 typical visit price
range $18.27 – $140.96
Typical copayment $17.78 (range $4.56 – $35.24)
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.

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 Marilyn Gonzalez's NPI number?

The NPI number for Marilyn Gonzalez is 1235166109. It was assigned to this individual provider in the NPPES registry on June 27, 2006. The provider is also known as Marilyn I Saiki.

Where is Marilyn Gonzalez located?

Marilyn Gonzalez practices at 3300 E. Flamingo Rd Ste 20, Las Vegas, NV 89121. The listed phone number is (702) 434-9919.

What is Marilyn Gonzalez's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Marilyn Gonzalez enrolled in Medicare?

Yes. Marilyn Gonzalez 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 Marilyn Gonzalez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Marilyn Gonzalez reassigns Medicare benefits to 2 organizations: Tamara Gutierrez, LLC (Las Vegas, NV) and John Chan O.D. PLLC (Henderson, NV). 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 Marilyn Gonzalez's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Marilyn Gonzalez accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 1 other insurer list Marilyn Gonzalez 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 Marilyn Gonzalez was last updated on August 13, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.