DORA LAVERNE PORTER
NPI 1821379231
Social Worker - Clinical in Ontario, CA
About Dora Laverne Porter NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DORA LAVERNE PORTER (NPI 1821379231) is an individual clinical provider in Ontario, California and active in the NPI registry since August 2011. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dora Laverne Porter is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Dora Porter reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chino Hills, CA 91709
- Reassigned Medicare billing, California enrollment
- 5,228 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 91761 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ONTARIO, CA 91761
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 Dora Porter's NPI number?
The NPI number for Dora Porter is 1821379231. It was assigned to this individual provider in the NPPES registry on August 30, 2011.
Where is Dora Porter located?
Dora Porter practices at 1647 E Holt Blvd, Ontario, CA 91761. The listed phone number is (909) 458-9628.
What is Dora Porter's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Dora Porter enrolled in Medicare?
Yes. Dora Porter is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Dora Porter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dora Porter reassigns Medicare benefits to Southern California Permanente Medical Group (Chino Hills, 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 Dora Porter'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 Dora Porter was last updated on February 10, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dora Laverne Porter · NPI 1821379231
Clinical provider in Ontario, California. Individual provider, active in the CMS NPPES registry since August 30, 2011.
## Identity
- **NPI:** 1821379231 (Entity type: Individual)
- **Enumerated:** August 30, 2011
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1647 E HOLT BLVD, Ontario, CA 91761-2107
- **Phone:** (909) 458-9628
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Southern California Permanente Medical Group (NPI 1396287082, Chino Hills, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 10, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1821379231) · Data from the CMS NPPES public registry.