RIOS HEALTHCARE ASSOCIATES, PLLC
NPI 1437647369
Clinic/Center - Medical Specialty in Houston, TX

Q: What is Rios Healthcare Associates, PLLC's NPI number?

The NPI number for Rios Healthcare Associates, PLLC is 1437647369. It was assigned to this organization in the NPPES registry on April 26, 2018.

Q: What is Rios Healthcare Associates, PLLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Medical Specialty, with taxonomy code 261QM2500X.

Active since April 26, 2018CLIA 45D2161178 · Accreditation

3899 SOUTHWEST FWY, HOUSTON, TX 77027(832) 323-9230(713) 481-0839 Get Directions Write a Review

NPPES record last updated: May 12, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 12, 2021, May 5, 2018, Apr 26, 2018 (3 updates tracked since 2018).

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About Rios Healthcare Associates, Pllc NPPES

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

RIOS HEALTHCARE ASSOCIATES, PLLC (NPI 1437647369) is a healthcare organization registered as a medical specialty in Houston, Texas and active in the NPI registry since April 2018. The organization holds an CLIA Accreditation certificate valid through May 17, 2028, maintains 4 additional practice locations, and lists Tomas Gabriel Rios, Owner/physician, as its authorized official.

NPPES Registry Identity

NPI1437647369

Entity TypeOrganization

Primary Taxonomy261QM2500X

Legal Business NameRIOS HEALTHCARE ASSOCIATES, PLLC

Location Address3899 SOUTHWEST FWYHouston, TX 77027-7515

Mailing Address3899 Southwest FwyHouston, TX 77027-7515 · (832) 323-9230 · Fax (713) 481-0839

Phone(832) 323-9230

Fax(713) 481-0839

Organization SubpartNo

Authorized OfficialTomas Gabriel RiosOwner/physician · (915) 920-7467

Enumeration DateApril 26, 2018

Last NPPES UpdateMay 12, 20213 updates tracked since enumeration

NPPES CertifiedMay 12, 2021

✔ NPI 1437647369 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyClinic/Center · Medical SpecialtyAmbulatory Health Care Facilities

Taxonomy Code261QM2500X

License✔ Licensed in TX · Q2700

Definition

An entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to a specific area of medical specialization. Frequently used for Title V related Children's Specialty services or to meet specific public health needs (e.g., infectious diseases or breast and cervical cancer).

Also ListedHospitalistTaxonomy 208M00000X

3899 SOUTHWEST FWY, Houston, TX 77027

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Secondary Practice Locations 4

Location 16441 Main StHouston, TX 77030-1502 · Phone (832) 409-3915 · Fax (713) 481-0839

Location 2921 Gessner RdHouston, TX 77024-2501 · Phone (832) 409-3915 · Fax (713) 481-0839

Location 31635 North Loop WHouston, TX 77008-1532 · Phone (832) 409-3915 · Fax (713) 481-0839

Location 46720 Bertner AveHouston, TX 77030-2604 · Phone (832) 409-3915 · Fax (713) 481-0839

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rios Healthcare Associates, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 2 clinicians reassign Medicare billing to Rios Healthcare Associates, PLLC, which bills Medicare for the services they deliver. Of these, 2 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Nicolin Neal, M.D.

Internal Medicine

NPI 1407103799

3899 SOUTHWEST FWY
Houston, TX 77027

(832) 323-9230

✔ PECOS✔ Accepts MedicareSame address

Tomas Rios, M.D.

Internal Medicine

NPI 1952657876

3899 SOUTHWEST FWY
Houston, TX 77027

(323) 239-2308

✔ PECOS✔ Accepts MedicareSame address

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

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 Accreditation 45D2161178

Rios Healthcare Associates, PLLC · Houston, TX

Active · expires May 17, 2028

CLIA Number45D2161178

Laboratory TypePhysician Office

Certificate Effective DateMay 18, 2026

Certificate Expiration DateMay 17, 2028

Laboratory DirectorDr. Tomas G. Rios

Laboratory Phone(832) 323-9230

Laboratory LocationRios Healthcare Associates, PLLC3899 Southwest Fwy, Houston, TX 77027

CLIA data matches this NPI record on: Address Name Phone

This is a certificate that is issued to a laboratory on the basis of the laboratory's accreditation by an accreditation organization approved by CMS.

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 Rios Healthcare Associates, PLLC's NPI number?

The NPI number for Rios Healthcare Associates, PLLC is 1437647369. It was assigned to this organization in the NPPES registry on April 26, 2018.

Where is Rios Healthcare Associates, PLLC located?

Rios Healthcare Associates, PLLC is located at 3899 Southwest Fwy, Houston, TX 77027. The listed phone number is (832) 323-9230.

What is Rios Healthcare Associates, PLLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Medical Specialty, with taxonomy code 261QM2500X.

Is Rios Healthcare Associates, PLLC enrolled in Medicare?

Yes. Rios Healthcare Associates, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Rios Healthcare Associates, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Internal Medicine, reassign their Medicare billing to Rios Healthcare Associates, PLLC. 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. Of these, 2 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Rios Healthcare Associates, PLLC hold a CLIA laboratory certificate?

Yes. A Certificate of Accreditation (number 45D2161178) is associated with this NPI, valid through May 17, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Rios Healthcare Associates, PLLC was last updated on May 12, 2021. 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.