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GREATER HOUSTON RADIATION ONCOLOGY, P.A.
NPI 1477553477
Radiology - Radiation Oncology in Houston, TX

Active since August 01, 2005
1140A CYPRESS STATION DR, HOUSTON, TX 77090(281) 377-7555(281) 248-8391 Get Directions Write a Review

NPPES record last updated: March 30, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 30, 2026, Sep 13, 2016 (2 updates tracked since 2016).

About Greater Houston Radiation Oncology, P.a. NPPES

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

GREATER HOUSTON RADIATION ONCOLOGY, P.A. (NPI 1477553477), doing business as Kirk E Kanady, Md, Pa, is a healthcare organization registered as a radiation oncology in Houston, Texas and active in the NPI registry since August 2005. The organization maintains 3 additional practice locations and lists Kirk Edward Kanady, Medical Doctor President, as its authorized official.

NPPES Registry Identity

NPI1477553477
Entity TypeOrganization
Primary Taxonomy2085R0001X
Legal Business NameGREATER HOUSTON RADIATION ONCOLOGY, P.A.
Location Address1140A CYPRESS STATION DRHouston, TX 77090-3058
Mailing AddressPo Box 8397The Woodlands, TX 77387-8397 · (281) 364-1707 · Fax (281) 364-0028
Phone(281) 377-7555
Fax(281) 248-8391
Organization SubpartNo
Authorized OfficialKirk Edward KanadyMedical Doctor President · (281) 364-1707
Enumeration DateAugust 1, 2005
Last NPPES UpdateMarch 30, 20262 updates tracked since enumeration
NPPES CertifiedMarch 30, 2026
✔ NPI 1477553477 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
Definition
A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
1140A CYPRESS STATION DR, Houston, TX 77090
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Other Names 1

Former Legal Business NameKirk E Kanady, Md, Pa

Secondary Practice Locations 3

Location 1112 Medical Park LnHuntsville, TX 77340-4971 · Phone (936) 291-7900 · Fax (936) 291-7911
Location 211950 Galveston RdHouston, TX 77034-4855 · Phone (713) 412-3200 · Fax (713) 512-3250
Location 325511 Budde Rd, Suite 1201The Woodlands, TX 77380-2080 · Phone (281) 364-1707 · Fax (281) 364-0028

Other Identifiers 2

Medicaid159064802TX
Medicaid1590473-02TX

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)

Greater Houston Radiation Oncology, P.a. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

5

Medicare enrollment records show 5 clinicians reassign Medicare billing to Greater Houston Radiation Oncology, P.A., which bills Medicare for the services they deliver. Of these, 1 practice at this address and 3 within 10 miles. They are listed nearest first.

Clinicians, nearest first (5)

Kirk Kanady, MD
Radiation Oncology
NPI 1720089451
1140A CYPRESS STATION DR
Houston, TX 77090
(281) 377-7555
✔ PECOS✔ Accepts MedicareSame address
Maria Sosa, MD
Radiation Oncology
NPI 1427072610
25511 BUDDE RD STE 1201 BELLE BUILDING
Spring, TX 77380
(281) 364-1707
✔ PECOS✔ Accepts Medicare7.6 mi
Theodore Yang, MD
Radiation Oncology
NPI 1689674483
25511 BUDDE RD SUITE 1201
The Woodlands, TX 77380
(281) 364-1707
✔ PECOS✔ Accepts Medicare7.6 mi
Nimi Tuamokumo, M.D.
Radiation Oncology
NPI 1033141569
22710 PROFESSIONAL DR RADIATION DEPARTMENT
Kingwood, TX 77339
(281) 312-8545
✔ PECOS✔ Accepts Medicare11 mi
Ather Siddiqi, MD
Radiation Oncology
NPI 1508893702
17198 ST LUKES WAY STE 100
The Woodlands, TX 77384
(936) 266-4330
✔ PECOS✔ Accepts Medicare13 mi

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

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 Greater Houston Radiation Oncology, P.A.'s NPI number?

The NPI number for Greater Houston Radiation Oncology, P.A. is 1477553477. It was assigned to this organization in the NPPES registry on August 1, 2005. The provider was formerly known as Kirk E Kanady, MD, PA.

Where is Greater Houston Radiation Oncology, P.A. located?

Greater Houston Radiation Oncology, P.A. is located at 1140A Cypress Station Dr, Houston, TX 77090. The listed phone number is (281) 377-7555.

What is Greater Houston Radiation Oncology, P.A.'s specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Greater Houston Radiation Oncology, P.A. enrolled in Medicare?

Yes. Greater Houston Radiation Oncology, P.A. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Greater Houston Radiation Oncology, P.A.?

According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians, all in Radiation Oncology, reassign their Medicare billing to Greater Houston Radiation Oncology, P.A.. 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, 1 practice at this address and 3 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Greater Houston Radiation Oncology, P.A. was last updated on March 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.