NNA SAN MARCOS
NPI 1184726507
Clinic/Center - End-Stage Renal Disease (ESRD) Treatment in San Marcos, TX

Q: What is National Nephrology Associates Of Texas, L.P.'s specialty?

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

Q: What quality rating does National Nephrology Associates Of Texas, L.P. have?

CMS rates Nna San Marcos 4 out of 5 stars on Care Compare. The full measure detail is in the Dialysis Facility Quality section above.

Active since September 05, 2006CLIA 45D0504391 · Waiver

4/5

Overall Rating

1340 WONDER WORLD DR STE 4100, SAN MARCOS, TX 78666(512) 878-2420(512) 878-2440 Get Directions Write a Review

NPPES record last updated: October 16, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Oct 16, 2023, Aug 9, 2021 (2 updates tracked since 2021).

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About Nna San Marcos NPPES

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

NNA SAN MARCOS (NPI 1184726507) is a healthcare organization registered as an end-stage renal disease (esrd) treatment in San Marcos, Texas and active in the NPI registry since September 2006. The organization holds a CLIA Waiver certificate valid through August 31, 2026 and lists Barry L. Blanton, Vice President, as its authorized official.

NPPES Registry Identity

NPI1184726507

Entity TypeOrganization

Primary Taxonomy261QE0700X

Legal Business NameNATIONAL NEPHROLOGY ASSOCIATES OF TEXAS, L.P.

Location Address1340 WONDER WORLD DR STE 4100San Marcos, TX 78666-7695

Mailing Address1340 Wonder World Dr Ste 4100San Marcos, TX 78666-7695 · (512) 878-2420 · Fax (512) 878-2440

Phone(512) 878-2420

Fax(512) 878-2440

Organization SubpartYesParent: Fresenius Medical Care Holdings, Inc.

Authorized OfficialBarry L. BlantonVice President · (781) 699-9000

Enumeration DateSeptember 5, 2006

Last NPPES UpdateOctober 16, 20232 updates tracked since enumeration

NPPES CertifiedOctober 16, 2023

✔ NPI 1184726507 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

1340 WONDER WORLD DR STE 4100, San Marcos, TX 78666

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Other Names 1

Doing Business AsNna San Marcos

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Oscar Health Insurance and more.Insurance ›

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 45D0504391

Nna San Marcos · San Marcos, TX

Active · expires Aug 31, 2026

CLIA Number45D0504391

Laboratory TypeEnd Stage Renal Disease Dialysis Facility

Certificate Effective DateSeptember 1, 2024

Certificate Expiration DateAugust 31, 2026

Laboratory DirectorKandice Smith

Laboratory Phone(512) 878-2420

Laboratory LocationNna San Marcos1340 Wonder World Drive Suite 4100, San Marcos, TX 78666

CLIA data matches this NPI record on: Address Name Phone

This certificate is issued to a laboratory to perform only waived tests.

Dialysis Facility Quality Ratings CMS Care Compare

Quality ratings, services and patient survey results for Nna San Marcos (CMS certification number 452522), from CMS Care Compare.

Nna San Marcos

Dialysis facility · San Marcos, TX

4/5 CMS RatingRating period January 2020 to December 2023

OwnershipProfit

ChainFresenius Medical Care

CMS Certification Number452522

ESRD NetworkNetwork 14

Hemodialysis Stations24

Medicare-Certified SinceAugust 31, 1977

Location1340 Wonder World Drive Suite 4100San Marcos, TX 78666 · Hays County

Phone(512) 878-2420

Services Offered

In-center hemodialysis Peritoneal dialysis Evening shifts (after 5 PM)

Patient Survey Results

Nephrologists’ communication and caring

Patients who reported their kidney doctors always communicated well and cared for them as a person.

65% 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.

56% 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.

80% 3/5

Rating of the kidney doctors

Patients who rated their kidney doctors 9 or 10 on a scale of 0 (worst) to 10 (best).

64% 3/5

Rating of the dialysis center staff

Patients who rated the center staff 9 or 10 on a scale of 0 (worst) to 10 (best).

56% 2/5

Rating of the dialysis center

Patients who rated the dialysis center 9 or 10 on a scale of 0 (worst) to 10 (best).

59% 2/5

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.

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 National Nephrology Associates Of Texas, L.P.'s NPI number?

The NPI number for National Nephrology Associates Of Texas, L.P. is 1184726507. It was assigned to this organization in the NPPES registry on September 5, 2006. The provider is doing business as Nna San Marcos.

Where is National Nephrology Associates Of Texas, L.P. located?

National Nephrology Associates Of Texas, L.P. is located at 1340 Wonder World Dr Ste 4100, San Marcos, TX 78666. The listed phone number is (512) 878-2420.

What is National Nephrology Associates Of Texas, L.P.'s specialty?

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

Does National Nephrology Associates Of Texas, L.P. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 45D0504391) is associated with this NPI, valid through August 31, 2026. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

Is National Nephrology Associates Of Texas, L.P. a Medicare-certified dialysis facility?

Yes. Nna San Marcos is a Medicare-certified dialysis facility, certified since August 31, 1977.

What quality rating does National Nephrology Associates Of Texas, L.P. have?

CMS rates Nna San Marcos 4 out of 5 stars on Care Compare. The full measure detail is in the Dialysis Facility Quality section above.

What insurance does National Nephrology Associates Of Texas, L.P. accept?

Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Oscar Health Insurance, Oscar Health Maintenance Organization of Florida and Oscar Health Plan, Inc. and 3 other insurers list National Nephrology Associates Of Texas, L.P. 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 National Nephrology Associates Of Texas, L.P. was last updated on October 16, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.