MRS. MARILYN GARLEJO OSIAS NP
NPI 1437755477
Nurse Practitioner in Stockton, CA
About Mrs. Marilyn Garlejo Osias Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. MARILYN GARLEJO OSIAS NP (NPI 1437755477) is an individual nurse practitioner in Stockton, California, licensed in California (95016046) and active in the NPI registry since December 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses
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
Mrs. Marilyn Garlejo Osias Np 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.
Medicare Billing Reassignment
Medicare enrollment records show Marilyn Osias reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Stockton, CA 95210
- Reassigned Medicare billing, California enrollment
- 20,078 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95206 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Marilyn Osias's NPI number?
The NPI number for Marilyn Osias is 1437755477. It was assigned to this individual provider in the NPPES registry on December 6, 2020.
Where is Marilyn Osias located?
Marilyn Osias practices at 5030 Pier Dr, Stockton, CA 95206. The listed phone number is (209) 598-3523.
What is Marilyn Osias's specialty?
The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.
Is Marilyn Osias enrolled in Medicare?
Yes. Marilyn Osias 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 Marilyn Osias's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marilyn Osias reassigns Medicare benefits to Permanente Medical Group Inc (Stockton, 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 Marilyn Osias'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 Marilyn Osias was last updated on December 6, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Mrs. Marilyn Garlejo Osias, NP · NPI 1437755477
Nurse Practitioner physician in Stockton, California. Individual provider, active in the CMS NPPES registry since December 6, 2020.
## Identity
- **NPI:** 1437755477 (Entity type: Individual)
- **Enumerated:** December 6, 2020
- **Primary specialty:** Nurse Practitioner · taxonomy 363L00000X
- **State license:** 95016046 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 5030 PIER DR, Stockton, CA 95206-6159
- **Phone:** (209) 598-3523
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Permanente Medical Group Inc (NPI 1548343510, Stockton, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** December 6, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1437755477) · Data from the CMS NPPES public registry.