AMBER OSIJO MFT
NPI 1235415480
Marriage & Family Therapist in San Dimas, CA
About Amber Osijo Mft NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AMBER OSIJO MFT (NPI 1235415480) is an individual marriage & family therapist in San Dimas, California, licensed in California (LMFT96407) and active in the NPI registry since November 2011. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Amber Osijo Mft is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Amber Osijo reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Jose, CA 95113
- Reassigned Medicare billing, California enrollment
- 3,139 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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.
SAN DIMAS, CA 91773
SAN DIMAS, CA 91773
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 Amber Osijo's NPI number?
The NPI number for Amber Osijo is 1235415480. It was assigned to this individual provider in the NPPES registry on November 1, 2011. The provider is also known as Amber Simpson.
Where is Amber Osijo located?
Amber Osijo practices at 762 Cypress St, San Dimas, CA 91773. The listed phone number is (909) 599-1227.
What is Amber Osijo's specialty?
The primary specialty registered for this NPI is Marriage & Family Therapist with taxonomy code 106H00000X.
Is Amber Osijo enrolled in Medicare?
Yes. Amber Osijo is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Amber Osijo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Amber Osijo reassigns Medicare benefits to Grow Healthcare Group PC (San Jose, 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 Amber Osijo'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 Amber Osijo was last updated on December 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.
# Amber Osijo, MFT · NPI 1235415480
Marriage & Family Therapist provider in San Dimas, California. Individual provider, active in the CMS NPPES registry since November 1, 2011.
## Identity
- **NPI:** 1235415480 (Entity type: Individual)
- **Enumerated:** November 1, 2011
- **Primary specialty:** Marriage & Family Therapist · taxonomy 106H00000X
- **State license:** LMFT96407 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 762 CYPRESS ST, San Dimas, CA 91773-3505
- **Phone:** (909) 599-1227
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Grow Healthcare Group PC (NPI 1154994846, San Jose, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 6, 2024
---
Source: [NPI Profile](https://npiprofile.com/npi/1235415480) · Data from the CMS NPPES public registry.