1. Home
  2. Directory
  3. California
  4. Berkeley
  5. Social Worker
  6. NPI Profile

LANDON FERN MARRIOTT
NPI 1104348200
Social Worker in Berkeley, CA

Active since July 10, 2017
1255 ALLSTON WAY, BERKELEY, CA 94702(510) 845-9010 Get Directions Write a Review

NPPES record last updated: February 16, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 31, 2018, Aug 14, 2017, Jul 10, 2017 (3 updates tracked since 2017).

About Landon Fern Marriott NPPES

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

LANDON FERN MARRIOTT (NPI 1104348200) is an individual social worker in Berkeley, California and active in the NPI registry since July 2017. He maintains a secondary practice location in Seattle.

NPPES Registry Identity

NPI1104348200
Entity TypeIndividualMale
Primary Taxonomy104100000X
Provider Legal NameLANDON FERN MARRIOTT
Location Address1255 ALLSTON WAYBerkeley, CA 94702
Mailing Address515 3rd AveSeattle, WA 98104-2304 · (510) 320-7195
Phone(510) 845-9010
Sole ProprietorNo
Enumeration DateJuly 10, 2017
Last NPPES UpdateFebruary 16, 20263 updates tracked since enumeration
NPPES CertifiedFebruary 16, 2026
✔ NPI 1104348200 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
1255 ALLSTON WAY, Berkeley, CA 94702
Open in Google Maps ↗

Secondary Practice Location 1

Location 1515 3rd AveSeattle, WA 98104-2304 · Phone (510) 320-7195

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.

SHARDE BELL
Case Manager/Care Coordinator
1255 ALLSTON WAY
BERKELEY, CA 94702
Alameda County (510) 845-0155
ISAAC MENSAH
Student in an Organized Health Care Education/Training Program
1255 ALLSTON WAY
BERKELEY, CA 94702
Alameda County (415) 516-2253
RENDA LEE CARY-DAVIS
Case Manager/Care Coordinator
1255 ALLSTON WAY
BERKELEY, CA 94702
Alameda County (510) 845-0155
BRANDON WELLINGTON MASON
Case Manager/Care Coordinator
1255 ALLSTON WAY
BERKELEY, CA 94702
Alameda County (510) 849-1402
WENDY G RODRIGUES
Case Manager/Care Coordinator
1255 ALLSTON WAY
BERKELEY, CA 94702
Alameda County (510) 845-9010
MICHAEL OLAWUYI OLAWUNI
Marriage & Family Therapist
1255 ALLSTON WAY
BERKELEY, CA 94702
Alameda County (510) 845-9010
PATSY MARTIN
Marriage & Family Therapist
1255 ALLSTON WAY
BERKELEY, CA 94702
Alameda County (510) 845-9010
AKIL FOSTER
Marriage & Family Therapist
1255 ALLSTON WAY
BERKELEY, CA 94702
Alameda County (510) 845-9010

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 Landon Marriott's NPI number?

The NPI number for Landon Marriott is 1104348200. It was assigned to this individual provider in the NPPES registry on July 10, 2017.

Where is Landon Marriott located?

Landon Marriott practices at 1255 Allston Way, Berkeley, CA 94702. The listed phone number is (510) 845-9010.

What is Landon Marriott's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

When was this NPI record last updated?

The NPPES record for Landon Marriott was last updated on February 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.