DR. STEPHANIE R PORTER NP
NPI 1396238929
Nurse Practitioner - Family in Thousand Oaks, CA
About Dr. Stephanie R Porter Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEPHANIE R PORTER NP (NPI 1396238929) is an individual family provider in Thousand Oaks, California, licensed in California (NP95008743) and active in the NPI registry since June 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2017).
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
Dr. Stephanie R Porter 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 Reassignments
3Medicare enrollment records show Stephanie Porter reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Westlake Village, CA 91361
- Reassigned Medicare billing, California enrollment
- 2 clinicians in this Medicare group
Westlake Village, CA 91361
- Reassigned Medicare billing, California enrollment
- 5 clinicians in this Medicare group
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 2,052 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 91361 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Stephanie Porter's NPI number?
The NPI number for Stephanie Porter is 1396238929. It was assigned to this individual provider in the NPPES registry on June 8, 2018.
Where is Stephanie Porter located?
Stephanie Porter practices at 3180 Willow Ln Ste 216, Thousand Oaks, CA 91361. The listed phone number is (805) 491-5992.
What is Stephanie Porter's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Stephanie Porter enrolled in Medicare?
Yes. Stephanie Porter 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 organizations bill Medicare for Stephanie Porter's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephanie Porter reassigns Medicare benefits to 3 organizations: Dr. Mayha Patel, Inc. (Westlake Village, CA), Daphne I Panagotacos MD (Westlake Village, CA) and Healthcare Partners Affiliates Medical Group (Los Angeles, CA). Each 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 Stephanie 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 Stephanie Porter was last updated on March 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Dr. Stephanie R Porter, NP · NPI 1396238929
Family physician in Thousand Oaks, California. Individual provider, active in the CMS NPPES registry since June 8, 2018.
## Identity
- **NPI:** 1396238929 (Entity type: Individual)
- **Enumerated:** June 8, 2018
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** NP95008743 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3180 WILLOW LN STE 216, Thousand Oaks, CA 91361-4941
- **Phone:** (805) 491-5992 · **Fax:** (805) 283-4377
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Dr. Mayha Patel, Inc. (NPI 1427657386, Westlake Village, CA); Daphne I Panagotacos MD (NPI 1295999274, Westlake Village, CA); Healthcare Partners Affiliates Medical Group (NPI 1659312593, Los Angeles, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** March 24, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1396238929) · Data from the CMS NPPES public registry.