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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

LUCAS MICHAEL GARRISON LCSW
NPI 1528557378
Social Worker - Clinical in San Rafael, CA

Active since May 08, 2018PECOS Enrolled
800 A ST, SAN RAFAEL, CA 94901(415) 457-8182(415) 457-7471 Get Directions Write a Review

NPPES record last updated: September 1, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 1, 2026, Oct 24, 2022, May 8, 2018 (3 updates tracked since 2018).

About Lucas Michael Garrison Lcsw NPPES

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

LUCAS MICHAEL GARRISON LCSW (NPI 1528557378) is an individual clinical provider in San Rafael, California, licensed in California (111073) and active in the NPI registry since May 2018. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1528557378
Entity TypeIndividualMale
Primary Taxonomy1041C0700X
Provider Legal NameLUCAS MICHAEL GARRISONCredential: LCSW
Location Address800 A STSan Rafael, CA 94901-3011
Mailing AddressPo Box 3517San Rafael, CA 94912-3517 · (415) 457-8182 · Fax (415) 457-7471
Phone(415) 457-8182
Fax(415) 457-7471
Sole ProprietorNo
Enumeration DateMay 8, 2018
Last NPPES UpdateSeptember 1, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 1, 2026
✔ NPI 1528557378 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in CA · 111073
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.
Also ListedSocial Worker · SchoolTaxonomy 1041S0200X
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
800 A ST, San Rafael, CA 94901
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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 (PECOS)

Lucas Michael Garrison Lcsw 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.

Medicare Billing Reassignment

Medicare enrollment records show Lucas Garrison reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ritter Center
Same address
Federally Qualified Health Center (FQHC)
800 A ST
San Rafael, CA 94901
  • Reassigned Medicare billing, California enrollment
  • 20 clinicians in this Medicare group
NPI 1417370032 (415) 457-8182

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 94901 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 $69.07 – $202.63
Typical copayment $0.00 (range $17.26 – $50.65)
Most-billed visit code NA
Established Patient
$85.00 typical visit price
range $23.44 – $166.64
Typical copayment $21.25 (range $5.86 – $41.66)
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 14

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

ALYSSA AMBER LAKE
Counselor (Addiction (Substance Use Disorder))
800 A ST
SAN RAFAEL, CA 94901
Marin County (415) 847-8733
SHANNALEAH SHAHEDI MASTERS
Physician Assistant
800 A ST
SAN RAFAEL, CA 94901
Marin County (415) 457-8182
OLIVIA HORAN AGPCNP-C
Nurse Practitioner
800 A ST
SAN RAFAEL, CA 94901
Marin County (415) 457-8182
KELLY MCKOIN PA-C
Physician Assistant
800 A ST
SAN RAFAEL, CA 94901
Marin County (415) 457-8182
AGUSTINA DEL CARRIL
Social Worker (Clinical)
800 A ST
SAN RAFAEL, CA 94901
Marin County (415) 457-8182
RITTER CENTER
Clinic/Center (Federally Qualified Health Center (FQHC))
800 A ST
SAN RAFAEL, CA 94901
Marin County (415) 457-8182
MR. MICHAEL A BEYER LCSW
Social Worker (Clinical)
800 A ST
SAN RAFAEL, CA 94901
Marin County (415) 457-8182
PATRICK LIANG PMHNP
Nurse Practitioner (Psychiatric/Mental Health)
800 A ST
SAN RAFAEL, CA 94901
Marin County (415) 457-8182

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 Lucas Garrison's NPI number?

The NPI number for Lucas Garrison is 1528557378. It was assigned to this individual provider in the NPPES registry on May 8, 2018.

Where is Lucas Garrison located?

Lucas Garrison practices at 800 A St, San Rafael, CA 94901. The listed phone number is (415) 457-8182.

What is Lucas Garrison's specialty?

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

Is Lucas Garrison enrolled in Medicare?

Yes. Lucas Garrison is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Lucas Garrison's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lucas Garrison reassigns Medicare benefits to Ritter Center (San Rafael, 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 Lucas Garrison'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 Lucas Garrison was last updated on September 1, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 53 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.