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MARIANA ALAMILLO
NPI 1649009986
Physician Assistant in Santa Maria, CA

Active since July 26, 2024PECOS Enrolled
2801 SANTA MARIA WAY, SANTA MARIA, CA 93455(805) 934-5400(805) 938-9207 Get Directions Write a Review

NPPES record last updated: September 10, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Sep 10, 2025, Jul 26, 2024 (2 updates tracked since 2024).

About Mariana Alamillo NPPES

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

MARIANA ALAMILLO (NPI 1649009986) is an individual physician assistant in Santa Maria, California, licensed in California (PA66745) and active in the NPI registry since July 2024. She is enrolled in Medicare PECOS and is a graduate of Other (2024).

NPPES Registry Identity

NPI1649009986
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMARIANA ALAMILLO
Location Address2801 SANTA MARIA WAYSanta Maria, CA 93455-2118
Mailing Address2050 S Blosser RdSanta Maria, CA 93458-7310 · (805) 361-8030 · Fax (805) 361-8097
Phone(805) 934-5400
Fax(805) 938-9207
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateJuly 26, 2024
Last NPPES UpdateSeptember 10, 20252 updates tracked since enumeration
NPPES CertifiedSeptember 10, 2025
✔ NPI 1649009986 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 · PA66745
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.
2801 SANTA MARIA WAY, Santa Maria, CA 93455
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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)

Mariana Alamillo is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3274038831
PECOS Enrollment IDI20250924003825
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93455 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
$94.71 typical visit price
range $62.01 – $184.40
Typical copayment $23.67 (range $15.50 – $46.10)
Most-billed visit code 99203
Established Patient
$76.76 typical visit price
range $20.60 – $151.20
Typical copayment $19.19 (range $5.15 – $37.80)
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 20

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

MICHELLE TAYLOR CORBIER MD
Pediatrics
2801 SANTA MARIA WAY
SANTA MARIA, CA 93455
Santa Barbara County (805) 938-9200
MATTHEW EDWARDS POTTER
Family Medicine
2801 SANTA MARIA WAY
SANTA MARIA, CA 93455
Santa Barbara County (805) 934-5400
LINDA E BAILEY
Registered Nurse (Home Health)
2801 SANTA MARIA WAY, SUITE A
SANTA MARIA, CA 93455
Santa Barbara County (805) 938-9200
MS. ANGELA MISURACO N.P.
Nurse Practitioner
2801 SANTA MARIA WAY
SANTA MARIA, CA 93455
Santa Barbara County (636) 449-4700
MS. SHEIRILL MAEJAN APN
Nurse Practitioner (Women's Health)
2801 SANTA MARIA WAY
SANTA MARIA, CA 93455
Santa Barbara County (805) 934-5400
NATALIE EULLOQUI LCSW
Social Worker (Clinical)
2801 SANTA MARIA WAY
SANTA MARIA, CA 93455
Santa Barbara County (805) 934-5400
LINDA M SEELEY CNM/NP
Registered Nurse
2801 SANTA MARIA WAY, SUITE B
SANTA MARIA, CA 93455
Santa Barbara County (805) 934-5402
CINDY CURENO PA
Physician Assistant
2801 SANTA MARIA WAY
SANTA MARIA, CA 93455
Santa Barbara County (805) 934-5400

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 Mariana Alamillo's NPI number?

The NPI number for Mariana Alamillo is 1649009986. It was assigned to this individual provider in the NPPES registry on July 26, 2024.

Where is Mariana Alamillo located?

Mariana Alamillo practices at 2801 Santa Maria Way, Santa Maria, CA 93455. The listed phone number is (805) 934-5400.

What is Mariana Alamillo's specialty?

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

Is Mariana Alamillo enrolled in Medicare?

Yes. Mariana Alamillo is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mariana Alamillo was last updated on September 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.