MARIKO UNO KARRES RN, NP
NPI 1538211644
Nurse Practitioner - Women's Health in Encinitas, CA
About Mariko Uno Karres Rn, Np NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIKO UNO KARRES RN, NP (NPI 1538211644) is an individual women's health provider in Encinitas, California, licensed in California (NPF14643) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS, maintains a secondary practice location in La Jolla, and is a graduate of Ohio State University College Of Medicine (2003).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Mariko Uno Karres Rn, 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 Mariko Karres reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Encinitas, CA 92024
- Reassigned Medicare billing, California enrollment
- 1,598 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92024 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 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ENCINITAS, CA 92024
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 Mariko Karres's NPI number?
The NPI number for Mariko Karres is 1538211644. It was assigned to this individual provider in the NPPES registry on January 17, 2007.
Where is Mariko Karres located?
Mariko Karres practices at 320 Santa Fe Dr Ste 300, Encinitas, CA 92024. The listed phone number is (760) 901-5200.
What is Mariko Karres's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Women's Health, with taxonomy code 363LW0102X.
Is Mariko Karres enrolled in Medicare?
Yes. Mariko Karres 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 Mariko Karres's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mariko Karres reassigns Medicare benefits to Scripps Health (Encinitas, 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 Mariko Karres'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 Mariko Karres was last updated on September 12, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Mariko Uno Karres, RN, NP · NPI 1538211644
Women's Health physician in Encinitas, California. Individual provider, active in the CMS NPPES registry since January 17, 2007.
## Identity
- **NPI:** 1538211644 (Entity type: Individual)
- **Enumerated:** January 17, 2007
- **Primary specialty:** Nurse Practitioner - Women's Health · taxonomy 363LW0102X
- **State license:** NPF14643 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 320 SANTA FE DR STE 300, Encinitas, CA 92024-5140
- **Phone:** (760) 901-5200
## 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:** Scripps Health (NPI 1700829199, Encinitas, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Ohio State University College Of Medicine, class of 2003
## Record status
- **NPPES last updated:** September 12, 2022
---
Source: [NPI Profile](https://npiprofile.com/npi/1538211644) · Data from the CMS NPPES public registry.