MS. EVELYN MASCARENAS
NPI 1336801430
Social Worker - Clinical in Pleasanton, CA

Active since October 06, 2021PECOS EnrolledAccepts Medicare Assignment
3825 HOPYARD RD STE 140, PLEASANTON, CA 94588(925) 847-5051 Get Directions Write a Review

NPPES record last updated: December 29, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 29, 2021, Oct 6, 2021 (2 updates tracked since 2021).

About Ms. Evelyn Mascarenas NPPES

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

MS. EVELYN MASCARENAS (NPI 1336801430) is an individual clinical provider in Pleasanton, California, licensed in California (75408) and active in the NPI registry since October 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2001).

NPPES Registry Identity

NPI1336801430
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. EVELYN MASCARENAS
Location Address3825 HOPYARD RD STE 140Pleasanton, CA 94588-8530
Mailing Address3825 Hopyard RdPleasanton, CA 94588-8528 · (925) 847-5051
Sole ProprietorNo
Medical School CMSOtherGraduated 2001
Enumeration DateOctober 6, 2021
Last NPPES UpdateDecember 29, 20212 updates tracked since enumeration
NPPES CertifiedSeptember 3, 2021
NPI 1336801430 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License Licensed in CA · 75408
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.
3825 HOPYARD RD STE 140, Pleasanton, CA 94588

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Ms. Evelyn Mascarenas is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7618341520
PECOS Enrollment IDI20230316000140
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 94588 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 $69.00 – $202.35
Typical copayment $0.00 (range $17.25 – $50.58)
Most-billed visit code NA
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
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 6

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

Psychiatry & Neurology (Psychiatry)
3825 HOPYARD RD STE 140
PLEASANTON, CA 94588
Psychologist (Clinical)
3825 HOPYARD RD STE 140, KAISER PLEASANTON DEP OF MENTAL HEALTH
PLEASANTON, CA 94588
Pharmacist
3825 HOPYARD RD STE 140
PLEASANTON, CA 94588
Marriage & Family Therapist
3825 HOPYARD RD STE 140
PLEASANTON, CA 94588
Marriage & Family Therapist
3825 HOPYARD RD STE 140
PLEASANTON, CA 94588
Marriage & Family Therapist
3825 HOPYARD RD STE 140
PLEASANTON, CA 94588

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 Evelyn Mascarenas's NPI number?

The NPI number for Evelyn Mascarenas is 1336801430. It was assigned to this individual provider in the NPPES registry on October 6, 2021.

Where is Evelyn Mascarenas located?

Evelyn Mascarenas practices at 3825 Hopyard Rd Ste 140, Pleasanton, CA 94588. The listed phone number is (925) 847-5051.

What is Evelyn Mascarenas's specialty?

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

Is Evelyn Mascarenas enrolled in Medicare?

Yes. Evelyn Mascarenas is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Evelyn Mascarenas was last updated on December 29, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.