1. Home
  2. Directory
  3. California
  4. Upland
  5. Physician Assistant
  6. NPI Profile

ASHLEY M AYESTAS
NPI 1346104809
Physician Assistant - Medical in Upland, CA

Active since December 10, 2025PECOS Enrolled
685 N 13TH AVE STE 2, UPLAND, CA 91786(909) 500-8683 Get Directions Write a Review

NPPES record last updated: May 1, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 1, 2026, Dec 10, 2025 (2 updates tracked since 2025).

About Ashley M Ayestas NPPES

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

ASHLEY M AYESTAS (NPI 1346104809) is an individual medical provider in Upland, California, licensed in California (PA67990) and active in the NPI registry since December 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2026).

NPPES Registry Identity

NPI1346104809
Entity TypeIndividualFemale
Primary Taxonomy363AM0700X
Provider Legal NameASHLEY M AYESTAS
Location Address685 N 13TH AVE STE 2Upland, CA 91786-4963
Mailing Address685 N 13th AveUpland, CA 91786-4916 · (909) 500-8683
Phone(909) 500-8683
Sole ProprietorYes
Medical School CMSOtherGraduated 2026
Enumeration DateDecember 10, 2025
Last NPPES UpdateMay 1, 20262 updates tracked since enumeration
NPPES CertifiedMay 1, 2026
✔ NPI 1346104809 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AM0700X
License✔ Licensed in CA · PA67990
685 N 13TH AVE STE 2, Upland, CA 91786
Open in Google Maps ↗

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 SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ashley M Ayestas is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6406325729
PECOS Enrollment IDI20260515002454
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.

Other Providers at the Same Location NPPES 2

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

DR. LARRY C CHAN D.O.
Internal Medicine (Interventional Cardiology)
685 N 13TH AVE STE 2
UPLAND, CA 91786
San Bernardino County (909) 500-8683
LUAY HUSSEIN MASHAALLAH ALALAWI M.D
Internal Medicine
685 N 13TH AVE STE 2
UPLAND, CA 91786
San Bernardino County (909) 500-8683

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 Ashley Ayestas's NPI number?

The NPI number for Ashley Ayestas is 1346104809. It was assigned to this individual provider in the NPPES registry on December 10, 2025.

Where is Ashley Ayestas located?

Ashley Ayestas practices at 685 N 13th Ave Ste 2, Upland, CA 91786. The listed phone number is (909) 500-8683.

What is Ashley Ayestas's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Is Ashley Ayestas enrolled in Medicare?

Yes. Ashley Ayestas is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Ashley Ayestas was last updated on May 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.