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NORTH HOUSTON NEPHROLOGY & DIAGNOSTIC ASSOCIATES PA
NPI 1285610410
Internal Medicine - Nephrology in Houston, TX

Active since December 20, 2005CLIA 45D0700268 · Microscopy
607 TIMBERDALE LN, STE 201, HOUSTON, TX 77090(281) 440-3005(281) 444-9070 Get Directions Write a Review

NPPES record last updated: May 13, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About North Houston Nephrology & Diagnostic Associates Pa NPPES

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

NORTH HOUSTON NEPHROLOGY & DIAGNOSTIC ASSOCIATES PA (NPI 1285610410) is a healthcare organization registered as a nephrology in Houston, Texas and active in the NPI registry since December 2005. The organization holds a CLIA Microscopy certificate valid through August 31, 2028 and lists Richard J Foley, President, as its authorized official.

NPPES Registry Identity

NPI1285610410
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameNORTH HOUSTON NEPHROLOGY & DIAGNOSTIC ASSOCIATES PA
Location Address607 TIMBERDALE LN, STE 201Houston, TX 77090-3049
Mailing Address607 Timberdale Ln, Ste 201Houston, TX 77090-3049 · (281) 440-3005 · Fax (281) 444-9070
Phone(281) 440-3005
Fax(281) 444-9070
Organization SubpartNo
Authorized OfficialRichard J FoleyPresident · (281) 440-3005
Enumeration DateDecember 20, 2005
Last NPPES UpdateMay 13, 2008
✔ NPI 1285610410 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
Also ListedHospitalistTaxonomy 208M00000X
607 TIMBERDALE LN, Houston, TX 77090
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Other Identifiers 3

OtherCT1222TX · Rr Medicare Pin
Medicaid082195101TX
Medicare PIN00DT15TX

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)

North Houston Nephrology & Diagnostic Associates Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

8

Medicare enrollment records show 8 clinicians reassign Medicare billing to North Houston Nephrology & Diagnostic Associates PA, which bills Medicare for the services they deliver. Of these, 7 practice at this address. They are listed nearest first.

Clinicians, nearest first (8)

Richard Foley, MD
Nephrology
NPI 1083699383
607 TIMBERDALE LN STE 201
Houston, TX 77090
(281) 440-3005
✔ PECOS✔ Accepts MedicareSame address
Syed Kadri, M.D.
Nephrology
NPI 1124384284
607 TIMBERDALE LN SUITE 201
Houston, TX 77090
(281) 440-3005
✔ PECOS✔ Accepts MedicareSame address
Gene Forrester, MD
Nephrology
NPI 1558345116
607 TIMBERDALE LN STE 201
Houston, TX 77090
(281) 440-3005
✔ PECOS✔ Accepts MedicareSame address
Margaret Kaminski, APRN-CNP
Nurse Practitioner
NPI 1588422299
607 TIMBERDALE LN STE 201
Houston, TX 77090
(281) 440-3005
✔ PECOS✔ Accepts MedicareSame address
Helen Lee, MD
Nephrology
NPI 1336124635
607 TIMBERDALE LANE STE 201
Houston, TX 77090
(281) 440-3005
✔ PECOS✔ Accepts MedicareSame address
Advayanand Shirsalkar, M.D.
Nephrology
NPI 1700016789
607 TIMBERDALE LN SUITE 201
Houston, TX 77090
(281) 440-3005
✔ PECOS✔ Accepts MedicareSame address
Nizar Younas, M.D
Nephrology
NPI 1891968475
607 TIMBERDALE LN. STE 201
Houston, TX 77090
(281) 440-3005
✔ PECOS✔ Accepts MedicareSame address
Evaristo Decena, FNP-BC
Nurse Practitioner
NPI 1477261527
110 MEMORIAL HOSPITAL DR
Huntsville, TX 77340
(936) 304-1700
✔ PECOS✔ Accepts Medicare47 mi

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 for Provider-Performed Microscopy Procedures (PPMP) 45D0700268

North Houston Nephrology & Diagnostic Associates PA · Houston, TX
Active · expires Aug 31, 2028
CLIA Number45D0700268
Laboratory TypePhysician Office
Certificate Effective DateSeptember 1, 2026
Certificate Expiration DateAugust 31, 2028
Laboratory DirectorRichard J. Foley
Laboratory Phone(281) 440-3005
Laboratory LocationNorth Houston Nephrology & Diagnostic Associates PA607 Timberdale Lane Suite 201, Houston, TX 77090
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform 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 North Houston Nephrology & Diagnostic Associates PA's NPI number?

The NPI number for North Houston Nephrology & Diagnostic Associates PA is 1285610410. It was assigned to this organization in the NPPES registry on December 20, 2005.

Where is North Houston Nephrology & Diagnostic Associates PA located?

North Houston Nephrology & Diagnostic Associates PA is located at 607 Timberdale Ln Ste 201, Houston, TX 77090. The listed phone number is (281) 440-3005.

What is North Houston Nephrology & Diagnostic Associates PA's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is North Houston Nephrology & Diagnostic Associates PA enrolled in Medicare?

Yes. North Houston Nephrology & Diagnostic Associates PA is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through North Houston Nephrology & Diagnostic Associates PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 8 clinicians in 2 Medicare specialties reassign their Medicare billing to North Houston Nephrology & Diagnostic 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. The largest specialties are Nephrology (6) and Nurse Practitioner (2). Of these, 7 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does North Houston Nephrology & Diagnostic Associates PA hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 45D0700268) is associated with this NPI, valid through August 31, 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 North Houston Nephrology & Diagnostic Associates PA was last updated on May 13, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.