CHIKAKO OKUMURA RIESTER
NPI 1386997542
Nurse Practitioner - Adult Health in Summerville, SC
About Chikako Okumura Riester NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHIKAKO OKUMURA RIESTER (NPI 1386997542) is an individual adult health provider in Summerville, South Carolina, licensed in South Carolina (24189) and active in the NPI registry since October 2012. She is enrolled in Medicare PECOS, is affiliated with Bon Secours-st Francis Xavier Hospital, and is a graduate of Other (2011).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Chikako Okumura Riester 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 Chikako Riester reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Summerville, SC 29486
- Reassigned Medicare billing, South Carolina enrollment
- 28 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 11
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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Bon Secours-St Francis Xavier Hospital
Acute Care Hospitals · Charleston, SCTrident Medical Center
Acute Care Hospitals · Charleston, SCRoper Hospital
Acute Care Hospitals · Charleston, SCMount Pleasant Hospital
Acute Care Hospitals · Mount Pleasant, SCRoper St Francis Hospital-Berkeley Inc
Acute Care Hospitals · Summerville, SCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 29486 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
SUMMERVILLE, SC 29486
SUMMERVILLE, SC 29486
SUMMERVILLE, SC 29486
SUMMERVILLE, SC 29486
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 Chikako Riester's NPI number?
The NPI number for Chikako Riester is 1386997542. It was assigned to this individual provider in the NPPES registry on October 24, 2012.
Where is Chikako Riester located?
Chikako Riester practices at 2001 2nd Ave Ste 201, Summerville, SC 29486. The listed phone number is (843) 572-4840.
What is Chikako Riester's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.
Is Chikako Riester enrolled in Medicare?
Yes. Chikako Riester 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 Chikako Riester's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Chikako Riester reassigns Medicare benefits to Articularis Healthcare Group Inc. (Summerville, SC). 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 Chikako Riester's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Chikako Riester accept?
Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of Alabama, Ambetter of North Carolina and Ambetter of Tennessee and 5 other insurers list Chikako Riester as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Chikako Riester affiliated with any hospitals?
According to CMS data, Chikako Riester is affiliated with Bon Secours-St Francis Xavier Hospital, Trident Medical Center, Roper Hospital, Mount Pleasant Hospital and Roper St Francis Hospital-Berkeley Inc.
When was this NPI record last updated?
The NPPES record for Chikako Riester was last updated on November 12, 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.
# Chikako Okumura Riester · NPI 1386997542
Adult Health physician in Summerville, South Carolina. Individual provider, active in the CMS NPPES registry since October 24, 2012.
## Identity
- **NPI:** 1386997542 (Entity type: Individual)
- **Enumerated:** October 24, 2012
- **Primary specialty:** Nurse Practitioner - Adult Health · taxonomy 363LA2200X
- **State license:** 24189 (South Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 2001 2ND AVE STE 201, Summerville, SC 29486-7887
- **Phone:** (843) 572-4840 · **Fax:** (843) 764-2726
## 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:** Articularis Healthcare Group Inc. (NPI 1083696413, Summerville, SC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** November 12, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1386997542) · Data from the CMS NPPES public registry.