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NANCY O'NEIL LCSW
NPI 1598070575
Social Worker - Clinical in Pleasant Hill, CA

Active since August 13, 2010PECOS EnrolledAccepts Medicare Assignment
81 GREGORY LANE, SUITE 220, PLEASANT HILL, CA 94523(925) 891-9011 Get Directions Write a Review

NPPES record last updated: August 15, 2012. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Nancy O'neil Lcsw NPPES

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

NANCY O'NEIL LCSW (NPI 1598070575) is an individual clinical provider in Pleasant Hill, California, licensed in California (26611) and active in the NPI registry since August 2010. She is enrolled in Medicare PECOS and is a graduate of Other (2007).

NPPES Registry Identity

NPI1598070575
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameNANCY O'NEILCredential: LCSW
Location Address81 GREGORY LANE, SUITE 220Pleasant Hill, CA 94523
Mailing Address81 Gregory Lane Suite 220, Suite 220Pleasant Hill, CA 94523 · (925) 891-9011
Phone(925) 891-9011
Sole ProprietorYes
Medical School CMSOtherGraduated 2007
Enumeration DateAugust 13, 2010
Last NPPES UpdateAugust 15, 2012
✔ NPI 1598070575 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 · 26611
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.
81 GREGORY LANE, Pleasant Hill, CA 94523
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nancy O'neil Lcsw 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 ID648779579
PECOS Enrollment IDI20250818003951
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.

Medicare Billing Reassignment

Medicare enrollment records show Nancy O'neil reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Psych Strategies Inc A Psychological Corp
Psychologist
1160 N DUTTON AVE, SUITE 230
Santa Rosa, CA 95401
  • Reassigned Medicare billing, California enrollment
  • 33 clinicians in this Medicare group
NPI 1699775411 (707) 303-3201

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94523 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

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

MIGUEL A CASTRO DDS, INC
Dentist (General Practice)
81 GREGORY LANE, OFFICE 210
PLEASANT HILL, CA 94523
Contra Costa County (925) 204-6062

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 Nancy O'neil's NPI number?

The NPI number for Nancy O'neil is 1598070575. It was assigned to this individual provider in the NPPES registry on August 13, 2010.

Where is Nancy O'neil located?

Nancy O'neil practices at 81 Gregory Lane Suite 220, Pleasant Hill, CA 94523. The listed phone number is (925) 891-9011.

What is Nancy O'neil's specialty?

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

Is Nancy O'neil enrolled in Medicare?

Yes. Nancy O'neil 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.

Which organization bills Medicare for Nancy O'neil's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nancy O'neil reassigns Medicare benefits to Psych Strategies Inc A Psychological Corp (Santa Rosa, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Nancy O'neil's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Nancy O'neil was last updated on August 15, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.