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ESTEFANIA HERMOSILLA
NPI 1699164053
Social Worker - Clinical in Orange, CA

Active since January 22, 2015PECOS Enrolled
500 CITY PKWY W STE 200, ORANGE, CA 92868(714) 480-6751 Get Directions Write a Review

NPPES record last updated: June 11, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jun 2, 2026, Sep 8, 2023, Apr 20, 2022 and 1 more (4 updates tracked since 2020).

About Estefania Hermosilla NPPES

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

ESTEFANIA HERMOSILLA (NPI 1699164053) is an individual clinical provider in Orange, California and active in the NPI registry since January 2015. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1699164053
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameESTEFANIA HERMOSILLA
Location Address500 CITY PKWY W STE 200Orange, CA 92868-2941
Mailing Address920 16th St Ste BModesto, CA 95354-1119 · (209) 522-2855
Phone(714) 480-6751
Sole ProprietorNo
Enumeration DateJanuary 22, 2015
Last NPPES UpdateJune 11, 20264 updates tracked since enumeration
NPPES CertifiedJune 11, 2026
✔ NPI 1699164053 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
500 CITY PKWY W STE 200, Orange, CA 92868
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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)

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

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 92868 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
$0.00 typical visit price
range $62.96 – $187.60
Typical copayment $0.00 (range $15.74 – $46.90)
Most-billed visit code NA
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
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.

DR. AZIN ASLI PH.D.
Psychologist (Clinical)
500 CITY PKWY W STE 200
ORANGE, CA 92868
Orange County (714) 834-5015
MICHELLE FLORES LMFT
Marriage & Family Therapist
500 CITY PKWY W STE 200
ORANGE, CA 92868
Orange County (714) 480-6600
GABRIELA DURON RUELAS
Rehabilitation Practitioner
500 CITY PKWY W STE 200
ORANGE, CA 92868
Orange County (714) 480-6796
CLARA ANAHI HERRERA LMFT 116585
Marriage & Family Therapist
500 CITY PKWY W STE 200
ORANGE, CA 92868
Orange County (714) 480-6600
ALYSSA BECKER LPCC
Counselor (Professional)
500 CITY PKWY W STE 200
ORANGE, CA 92868
Orange County (714) 480-6774
MS. DULCE SARAHI GARFIAS RAMIREZ
Peer Specialist
500 CITY PKWY W STE 200
ORANGE, CA 92868
Orange County (714) 480-6600
YESSENIA TORRECILLA MEDINA
Social Worker (Clinical)
500 CITY PKWY W STE 200
ORANGE, CA 92868
Orange County (714) 829-0496
BARBARA MEDINA LCSW
Social Worker (Clinical)
500 CITY PKWY W STE 200
ORANGE, CA 92868
Orange County (714) 480-6600

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 Estefania Hermosilla's NPI number?

The NPI number for Estefania Hermosilla is 1699164053. It was assigned to this individual provider in the NPPES registry on January 22, 2015.

Where is Estefania Hermosilla located?

Estefania Hermosilla practices at 500 City Pkwy W Ste 200, Orange, CA 92868. The listed phone number is (714) 480-6751.

What is Estefania Hermosilla's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Estefania Hermosilla enrolled in Medicare?

Yes. Estefania Hermosilla is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Estefania Hermosilla was last updated on June 11, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.