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ANNALYN YNOSTROZA PA-C
NPI 1457188310
Physician Assistant in Seaside, CA

Active since September 16, 2024PECOS Enrolled
1513 FREMONT BLVD # E1, SEASIDE, CA 93955(831) 242-8645 Get Directions Write a Review

NPPES record last updated: June 23, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Annalyn Ynostroza Pa-c NPPES

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

ANNALYN YNOSTROZA PA-C (NPI 1457188310) is an individual physician assistant in Seaside, California, licensed in California (68210) and active in the NPI registry since September 2024. She is enrolled in Medicare PECOS, is affiliated with University Of Md Capital Region Medical Center, and is a graduate of Other (2024).

NPPES Registry Identity

NPI1457188310
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameANNALYN YNOSTROZACredential: PA-C
Location Address1513 FREMONT BLVD # E1Seaside, CA 93955-4319
Mailing Address100 Wilson Rd Ste 100Monterey, CA 93940-7885
Phone(831) 242-8645
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateSeptember 16, 2024
Last NPPES UpdateJune 23, 2026
NPPES CertifiedJune 23, 2026
✔ NPI 1457188310 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in CA · 68210
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
1513 FREMONT BLVD # E1, Seaside, CA 93955
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Annalyn Ynostroza Pa-c is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID749718856
PECOS Enrollment IDI20260623001185
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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

University Of MD Capital Region Medical Center

Acute Care Hospitals · Upper Marlboro, MD
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210003
Location901 North Harry S Truman DriveUpper Marlboro, MD 20774 · Prince Georges County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93955 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
$94.44 typical visit price
range $61.69 – $184.30
Typical copayment $23.61 (range $15.42 – $46.07)
Most-billed visit code 99203
Established Patient
$76.53 typical visit price
range $20.34 – $151.02
Typical copayment $19.13 (range $5.08 – $37.75)
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.

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.

ERIC S PARSONS MD
Family Medicine
1513 FREMONT BLVD # E1
SEASIDE, CA 93955
Monterey County (831) 899-1910
MARY K SWEET MD
Family Medicine
1513 FREMONT BLVD # E1
SEASIDE, CA 93955
Monterey County (831) 899-1910

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 Annalyn Ynostroza's NPI number?

The NPI number for Annalyn Ynostroza is 1457188310. It was assigned to this individual provider in the NPPES registry on September 16, 2024.

Where is Annalyn Ynostroza located?

Annalyn Ynostroza practices at 1513 Fremont Blvd # E1, Seaside, CA 93955. The listed phone number is (831) 242-8645.

What is Annalyn Ynostroza's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Annalyn Ynostroza enrolled in Medicare?

Yes. Annalyn Ynostroza is registered in the Medicare PECOS enrollment system.

Is Annalyn Ynostroza affiliated with any hospitals?

According to CMS data, Annalyn Ynostroza is affiliated with University Of MD Capital Region Medical Center.

When was this NPI record last updated?

The NPPES record for Annalyn Ynostroza was last updated on June 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 60 days 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.