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RENAL TREATMENT CENTERS MID ATLANTIC, INC.
NPI 1558807370
Clinic/Center - End-Stage Renal Disease (ESRD) Treatment in Waterloo, IA

Active since January 18, 2017
4/5
Overall Rating
1661 W RIDGEWAY AVE, WATERLOO, IA 50701(319) 226-6425(319) 226-6421 Get Directions Write a Review

NPPES record last updated: February 10, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Jan 15, 2026, Nov 13, 2023, Nov 9, 2021 and 5 more (8 updates tracked since 2017).

About Renal Treatment Centers Mid Atlantic, Inc. NPPES

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

RENAL TREATMENT CENTERS MID ATLANTIC, INC. (NPI 1558807370), doing business as Cedar Valley Dialysis, is a healthcare organization registered as an end-stage renal disease (esrd) treatment in Waterloo, Iowa and active in the NPI registry since January 2017. The organization lists Samuel T. Wey, Vp Licensure & Certification, as its authorized official.

NPPES Registry Identity

NPI1558807370
Entity TypeOrganization
Primary Taxonomy261QE0700X
Legal Business NameRENAL TREATMENT CENTERS MID ATLANTIC, INC.
Location Address1661 W RIDGEWAY AVEWaterloo, IA 50701-4541
Mailing Address5200 Virginia Way, L&c DeptBrentwood, TN 37027-7569
Phone(319) 226-6425
Fax(319) 226-6421
Organization SubpartNo
Authorized OfficialSamuel T. WeyVp Licensure & Certification · (615) 341-6641
Enumeration DateJanuary 18, 2017
Last NPPES UpdateFebruary 10, 20268 updates tracked since enumeration
NPPES CertifiedFebruary 10, 2026
✔ NPI 1558807370 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · End-Stage Renal Disease (ESRD) TreatmentAmbulatory Health Care Facilities
Taxonomy Code261QE0700X
1661 W RIDGEWAY AVE, Waterloo, IA 50701
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Other Names 1

Doing Business AsCedar Valley Dialysis

Other Identifiers 1

Medicaid1558807370IA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, Oscar Health Insurance, Oscar Health Maintenance Organization of Florida and more.Insurance ›

Dialysis Facility Quality Ratings CMS Care Compare

Quality ratings, services and patient survey results for DaVita Cedar Valley Dialysis (CMS certification number 162516), from CMS Care Compare.

DaVita Cedar Valley Dialysis

Dialysis facility · Waterloo, IA
4/5 CMS RatingRating period January 2020 to December 2023
OwnershipProfit
ChainDaVita
CMS Certification Number162516
ESRD NetworkNetwork 12
Hemodialysis Stations24
Medicare-Certified SinceOctober 30, 1998
Location1661 W. Ridgeway AveWaterloo, IA 50701 · Black Hawk County
Phone(319) 226-6425
Services Offered
In-center hemodialysis Peritoneal dialysis

Patient Survey Results

Nephrologists’ communication and caring
Patients who reported their kidney doctors always communicated well and cared for them as a person.
77% 5/5
Dialysis center care and operations
Patients who reported center staff always communicated well, kept them as comfortable as possible, behaved professionally and kept the center clean.
62% 3/5
Providing information to patients
Patients who reported their kidney doctors and center staff gave them the information they needed to care for their health.
84% 4/5
Rating of the kidney doctors
Patients who rated their kidney doctors 9 or 10 on a scale of 0 (worst) to 10 (best).
82% 5/5
Rating of the dialysis center staff
Patients who rated the center staff 9 or 10 on a scale of 0 (worst) to 10 (best).
65% 4/5
Rating of the dialysis center
Patients who rated the dialysis center 9 or 10 on a scale of 0 (worst) to 10 (best).
61% 3/5
Percentages are patients giving the best possible responses in the In-Center Hemodialysis (ICH CAHPS) patient survey. Star ratings are assigned by CMS on a one-to-five star scale; five is the highest.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

RENAL TREATMENT CENTERS ILLINOIS INC
Clinic/Center (End-Stage Renal Disease (ESRD) Treatment)
1661 W RIDGEWAY AVE
WATERLOO, IA 50701
Black Hawk County (319) 226-6425
VANESSA LECHTENBERG LISW
Social Worker (Clinical)
1661 W RIDGEWAY AVE
WATERLOO, IA 50701
Black Hawk County (319) 226-6425
CEDAR VALLEY MEDICAL SPECIALISTS PC
Clinic/Center (End-Stage Renal Disease (ESRD) Treatment)
1661 W RIDGEWAY AVE
WATERLOO, IA 50701
Black Hawk County (319) 833-5777

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 Renal Treatment Centers Mid Atlantic, Inc.'s NPI number?

The NPI number for Renal Treatment Centers Mid Atlantic, Inc. is 1558807370. It was assigned to this organization in the NPPES registry on January 18, 2017. The provider is doing business as Cedar Valley Dialysis.

Where is Renal Treatment Centers Mid Atlantic, Inc. located?

Renal Treatment Centers Mid Atlantic, Inc. is located at 1661 W Ridgeway Ave, Waterloo, IA 50701. The listed phone number is (319) 226-6425.

What is Renal Treatment Centers Mid Atlantic, Inc.'s specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in End-Stage Renal Disease (ESRD) Treatment, with taxonomy code 261QE0700X.

Is Renal Treatment Centers Mid Atlantic, Inc. a Medicare-certified dialysis facility?

Yes. DaVita Cedar Valley Dialysis is a Medicare-certified dialysis facility, certified since October 30, 1998.

What quality rating does Renal Treatment Centers Mid Atlantic, Inc. have?

CMS rates DaVita Cedar Valley Dialysis 4 out of 5 stars on Care Compare. The full measure detail is in the Dialysis Facility Quality section above.

What insurance does Renal Treatment Centers Mid Atlantic, Inc. accept?

Health plans from Medica, Oscar Health Insurance, Oscar Health Maintenance Organization of Florida, Oscar Health Plan of North Carolina, Inc and Oscar Health Plan, Inc. and 3 other insurers list Renal Treatment Centers Mid Atlantic, Inc. 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 Renal Treatment Centers Mid Atlantic, Inc. was last updated on February 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.