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MAZONIA DIALYSIS LLC
NPI 1972907566
Clinic/Center - End-Stage Renal Disease (ESRD) Treatment in Long Beach, CA

Active since October 10, 2014
3/5
Overall Rating
2977 REDONDO AVE, LONG BEACH, CA 90806(562) 988-3418(562) 595-5819 Get Directions Write a Review

NPPES record last updated: May 21, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 21, 2026, Mar 10, 2023, Mar 12, 2021 and 3 more (6 updates tracked since 2017).

About Mazonia Dialysis Llc NPPES

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

MAZONIA DIALYSIS LLC (NPI 1972907566), doing business as El Dorado Dialysis, is a healthcare organization registered as an end-stage renal disease (esrd) treatment in Long Beach, California and active in the NPI registry since October 2014. The organization lists Samuel T. Wey, Vp, Licensure & Certification, as its authorized official.

NPPES Registry Identity

NPI1972907566
Entity TypeOrganization
Primary Taxonomy261QE0700X
Legal Business NameMAZONIA DIALYSIS LLC
Location Address2977 REDONDO AVELong Beach, CA 90806-2445
Mailing Address5200 Virginia Way, L&c DeptBrentwood, TN 37027-7569
Phone(562) 988-3418
Fax(562) 595-5819
Organization SubpartNo
Authorized OfficialSamuel T. WeyVp, Licensure & Certification · (615) 341-6641
Enumeration DateOctober 10, 2014
Last NPPES UpdateMay 21, 20266 updates tracked since enumeration
NPPES CertifiedMay 21, 2026
✔ NPI 1972907566 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
License✔ Licensed in CA · 550003170
2977 REDONDO AVE, Long Beach, CA 90806
Open in Google Maps ↗

Other Names 1

Doing Business AsEl Dorado Dialysis

Other Identifiers 1

Medicaid1972907566CA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, UnitedHealthcare.Insurance ›

Dialysis Facility Quality Ratings CMS Care Compare

Quality ratings, services and patient survey results for DaVita El Dorado Dialysis (CMS certification number 552801), from CMS Care Compare.

DaVita El Dorado Dialysis

Dialysis facility · Long Beach, CA
3/5 CMS RatingRating period January 2020 to December 2023
OwnershipProfit
ChainDaVita
CMS Certification Number552801
ESRD NetworkNetwork 18
Hemodialysis Stations25
Medicare-Certified SinceSeptember 19, 2016
Location2977 Redondo AvenueLong Beach, CA 90806 · Los Angeles County
Phone(562) 988-3418
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.
70% 4/5
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.
69% 4/5
Providing information to patients
Patients who reported their kidney doctors and center staff gave them the information they needed to care for their health.
75% 2/5
Rating of the kidney doctors
Patients who rated their kidney doctors 9 or 10 on a scale of 0 (worst) to 10 (best).
68% 4/5
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).
68% 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.

HERTZOG OPTICAL, LLC
Ophthalmology
2977 REDONDO AVE
LONG BEACH, CA 90806
Los Angeles County (562) 595-8587
DR. DARCY CALVIN RYAN O.D.
Optometrist
2977 REDONDO AVE
LONG BEACH, CA 90806
Los Angeles County (562) 595-4366
DR. LARS H HERTZOG M.D., F.A.C.S.
Ophthalmology
2977 REDONDO AVE
LONG BEACH, CA 90806
Los Angeles County (562) 426-1773

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 Mazonia Dialysis LLC's NPI number?

The NPI number for Mazonia Dialysis LLC is 1972907566. It was assigned to this organization in the NPPES registry on October 10, 2014. The provider is doing business as El Dorado Dialysis.

Where is Mazonia Dialysis LLC located?

Mazonia Dialysis LLC is located at 2977 Redondo Ave, Long Beach, CA 90806. The listed phone number is (562) 988-3418.

What is Mazonia Dialysis LLC'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 Mazonia Dialysis LLC a Medicare-certified dialysis facility?

Yes. DaVita El Dorado Dialysis is a Medicare-certified dialysis facility, certified since September 19, 2016.

What quality rating does Mazonia Dialysis LLC have?

CMS rates DaVita El Dorado Dialysis 3 out of 5 stars on Care Compare. The full measure detail is in the Dialysis Facility Quality section above.

What insurance does Mazonia Dialysis LLC accept?

Health plans from Ambetter from Arizona Complete Health and UnitedHealthcare list Mazonia Dialysis LLC 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 Mazonia Dialysis LLC was last updated on May 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.