Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Optometry

Caaveh Siahmakoun, OD

Sees patients in Mesa, AZ · Gilbert, AZ · Arizona

Summary

Dr. Caaveh Siahmakoun, OD is an optometrist at 1025 S Power Rd, 102 NW Vision Ctr, Mesa, AZ 85206. Phone: (480) 325-6277. Accepts Medicare assignment. NPI 1740087287. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Optometrist (Medicare lists Optometry)
  • Address: 1025 S Power Rd, 102 NW Vision Ctr, Mesa, AZ 85206 · Directions (1 more location)
  • Phone: (480) 325‑6277
  • Medicare: Accepts Medicare assignment
  • Group practice: Nationwide Optometry P.C.
  • Optometry school: Indiana University - School Of Optometry · graduated 2025 (1 years since optometry school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Caaveh Siahmakoun, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Caaveh Siahmakoun accept Medicare assignment?
Yes. Medicare's clinician data says Caaveh Siahmakoun accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Caaveh Siahmakoun's NPI number?
1740087287. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Caaveh Siahmakoun is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Caaveh Siahmakoun as a member of this group (CMS data updated October 2, 2026).

  • Nationwide Optometry P.C.53 clinicians in the group

Specialties

Find other clinicians: Optometry, Arizona →

Other optometrists in Mesa

Clinicians with the same Medicare primary specialty in Mesa, AZ — not a recommendation.

All optometrists in Mesa →

Other clinicians in Nationwide Optometry P.C.

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialOD
Optometry schoolIndiana University - School Of Optometry
Graduation year2025 (1 years since optometry school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1740087287
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians