RENAL ASSOCIATES PC
NPI 1821044884
Internal Medicine - Nephrology in Dakota Dunes, SD

Active since May 25, 2006
357 W TOWER RD, DAKOTA DUNES, SD 57049(712) 255-7746(712) 255-0829 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 21, 2022, Mar 17, 2018, Aug 22, 2017 (3 updates tracked since 2017).

About Renal Associates Pc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

RENAL ASSOCIATES PC (NPI 1821044884) is a healthcare organization registered as a nephrology in Dakota Dunes, South Dakota and active in the NPI registry since May 2006. The organization maintains a secondary practice location in Sioux City and lists Teri Harris, Office Manager, as its authorized official.

NPPES Registry Identity

NPI1821044884
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameLIEM SOM OEI MD PC
Location Address357 W TOWER RDDakota Dunes, SD 57049-5018
Mailing Address357 W Tower RdDakota Dunes, SD 57049-5018 · (712) 255-7746 · Fax (712) 255-0829
Fax(712) 255-0829
Organization SubpartNo
Authorized OfficialTeri HarrisOffice Manager · (712) 255-7746
Enumeration DateMay 25, 2006
Last NPPES UpdateJuly 21, 20223 updates tracked since enumeration
✔ NPI 1821044884 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedInternal MedicineTaxonomy 207R00000X
357 W TOWER RD, Dakota Dunes, SD 57049

Other Names 1

Doing Business AsRenal Associates Pc

Secondary Practice Location 1

Location 1801 5th StSioux City, IA 51101-1326 · Phone (712) 255-7746 · Fax (712) 255-0829

Other Identifiers 5

Medicaid0028951IA
OtherS108150SD · South Dakota Ptan
Other098555Nebraska Medicare Ptan
OtherCI7806Railroad Medicare
Other02895IA · Wellmark

Group Practice 2

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP
Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Renal Associates Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

7

Medicare enrollment records show 7 clinicians reassign Medicare billing to Renal Associates PC, which bills Medicare for the services they deliver. Of these, 4 practice at this address and 7 within 10 miles. They are listed nearest first.

Clinicians, nearest first (7)

Nurse Practitioner
NPI 1558126706
357 TOWER RD
Dakota Dunes, SD 57049
(605) 217-7746
✔ PECOSSame address
Nurse Practitioner
NPI 1316652043
357 W TOWER RD
Dakota Dunes, SD 57049
(515) 571-8601
✔ PECOS✔ Accepts MedicareSame address
Nephrology
NPI 1346047222
357 W TOWER RD
Dakota Dunes, SD 57049
(605) 217-7746
✔ PECOS✔ Accepts MedicareSame address
Nephrology
NPI 1740703990
357 W TOWER RD
North Sioux City, SD 57049
(712) 255-0829
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1508496134
575 N SIOUX POINT RD
Dakota Dunes, SD 57049
(605) 217-2667
✔ PECOS✔ Accepts Medicare0.1 mi
Nephrology
NPI 1558571497
600 4TH STREET
Sioux City, IA 51101
(712) 255-7746
✔ PECOS✔ Accepts Medicare4.9 mi
Nephrology
NPI 1275742090
600 4TH STREET SUITE 103
Sioux City, IA 51101
(712) 255-7746
✔ PECOS✔ Accepts Medicare4.9 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Liem Som Oei MD PC's NPI number?

The NPI number for Liem Som Oei MD PC is 1821044884. It was assigned to this organization in the NPPES registry on May 25, 2006. The provider is doing business as Renal Associates PC.

Where is Liem Som Oei MD PC located?

Liem Som Oei MD PC is located at 357 W Tower Rd, Dakota Dunes, SD 57049. The listed phone number is (712) 255-7746.

What is Liem Som Oei MD PC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Liem Som Oei MD PC enrolled in Medicare?

Yes. Liem Som Oei MD PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Liem Som Oei MD PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians in 2 Medicare specialties reassign their Medicare billing to Liem Som Oei MD PC. A 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 the clinician's services. The largest specialties are Nephrology (4) and Nurse Practitioner (3). Of these, 4 practice at this address and 7 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Liem Som Oei MD PC accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Sunflower Health Plan, Avera Health Plans and Blue Cross and Blue Shield of Nebraska and 1 other insurer list Liem Som Oei MD PC 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.

When was this NPI record last updated?

The NPPES record for Liem Som Oei MD PC was last updated on July 21, 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.