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NATHAN CARDIOLOGY ASSOCIATES, PA
NPI 1871707950
Internal Medicine - Sleep Medicine in Houston, TX

Active since May 09, 2007CLIA 45D1000284 · Waiver
11914 ASTORIA BLVD, SUITE 100, HOUSTON, TX 77089(281) 481-5444(281) 481-5460 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Nathan Cardiology Associates, Pa NPPES

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

NATHAN CARDIOLOGY ASSOCIATES, PA (NPI 1871707950) is a healthcare organization registered as a sleep medicine in Houston, Texas and active in the NPI registry since May 2007. The organization holds a CLIA Waiver certificate valid through June 6, 2028 and lists Periyanan Vaduganathan, President Owner, as its authorized official.

NPPES Registry Identity

NPI1871707950
Entity TypeOrganization
Primary Taxonomy207RS0012X
Legal Business NameNATHAN CARDIOLOGY ASSOCIATES, PA
Location Address11914 ASTORIA BLVD, SUITE 100Houston, TX 77089-6064
Mailing Address11914 Astoria Blvd, Suite 100Houston, TX 77089-6064 · (281) 481-5444 · Fax (281) 481-5460
Phone(281) 481-5444
Fax(281) 481-5460
Organization SubpartNo
Authorized OfficialPeriyanan VaduganathanPresident Owner · (281) 481-5444
Enumeration DateMay 9, 2007
Last NPPES UpdateAugust 22, 2020
✔ NPI 1871707950 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Sleep MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RS0012X
License✔ Licensed in TX · J7240
Definition
An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.
11914 ASTORIA BLVD, Houston, TX 77089
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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)

Nathan Cardiology Associates, Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Nathan Cardiology Associates, PA, which bills Medicare for the services this clinician delivers.

Clinician (1)

Periyanan Vaduganathan, M.D.
Cardiovascular Disease (Cardiology)
NPI 1518962588
11914 ASTORIA BLVD STE 100
Houston, TX 77089
(281) 481-5444
✔ 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 Waiver 45D1000284

Nathan Cardiology Assoc, PA · Houston, TX
Active · expires Jun 6, 2028
CLIA Number45D1000284
Laboratory TypePhysician Office
Certificate Effective DateJune 7, 2026
Certificate Expiration DateJune 6, 2028
Laboratory DirectorPeriyanan Vaduganathan
Laboratory Phone(281) 481-5444
Laboratory LocationNathan Cardiology Assoc, PA11914 Astoria Blvd, #100, Houston, TX 77089
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Nathan Cardiology Associates, PA's NPI number?

The NPI number for Nathan Cardiology Associates, PA is 1871707950. It was assigned to this organization in the NPPES registry on May 9, 2007.

Where is Nathan Cardiology Associates, PA located?

Nathan Cardiology Associates, PA is located at 11914 Astoria Blvd Suite 100, Houston, TX 77089. The listed phone number is (281) 481-5444.

What is Nathan Cardiology Associates, PA's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

Is Nathan Cardiology Associates, PA enrolled in Medicare?

Yes. Nathan Cardiology Associates, PA is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Nathan Cardiology Associates, PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Cardiovascular Disease (Cardiology)) reassigns their Medicare billing to Nathan Cardiology Associates, PA. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Nathan Cardiology Associates, PA hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 45D1000284) is associated with this NPI, valid through June 6, 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 Nathan Cardiology Associates, PA was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.