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Nurse Practitioner

Aaron T. Semana, NP

Sees patients in San Ramon, CA · San Jose, CA · California

Summary

Aaron T. Semana, NP (Nurse Practitioner) is enrolled with Medicare at 2 practice locations in San Ramon, CA and San Jose, CA. NPI 1104459486. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(925) 838‑4462 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Aaron T. Semana, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

2Practice locations
Nurse PractitionerPrimary specialty
YesAccepts Medicare assignment
7Years since medical school (graduated 2019)
MaleGender (as listed)
Permanente Medical Group IncGroup practice (+1 more)

Quick answers

Where does Aaron T. Semana see patients?
Medicare's clinician data lists 2 practice locations, including San Ramon, CA and San Jose, CA. Call before your visit to confirm the address.
What is Aaron T. Semana's specialty?
Medicare lists Nurse Practitioner as the primary specialty.
Does Aaron T. Semana accept Medicare assignment?
Yes. Medicare's clinician data says Aaron T. Semana accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Aaron T. Semana?
(925) 838-4462, as listed in official Medicare / NPI Registry data.
What is Aaron T. Semana's NPI number?
1104459486. 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 Aaron T. Semana is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Aaron T. Semana as a member of these groups (CMS data updated 2026-10-02).

  • Permanente Medical Group Inc10,996 clinicians in the group
  • Golden State Medical Center PC2 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, California →

Other nurse practitioners in San Ramon

Clinicians with the same Medicare primary specialty in San Ramon, CA — not a recommendation.

All nurse practitioners in San Ramon →

Clinician information

CredentialNP
Graduation year2019
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1104459486
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 2026-10-02, retrieved 2026-10-29
  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