SOUTHWEST MEDICAL CLINIC
NPI 1235312901
Clinic/Center - Primary Care in Sugar Land, TX
About Southwest Medical Clinic NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SOUTHWEST MEDICAL CLINIC (NPI 1235312901) is a healthcare organization registered as a primary care in Sugar Land, Texas and active in the NPI registry since December 2007. The organization holds a CLIA Waiver certificate valid through September 8, 2027 and lists Harish N Thakkar, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Southwest Medical Clinic is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by December 31, 2026
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Southwest Medical Clinic, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 45D2065434
Southwest Medical Clinic · Sugar Land, TXFrequently 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 Harish N. Thakkar M.D.'s NPI number?
The NPI number for Harish N. Thakkar M.D. is 1235312901. It was assigned to this organization in the NPPES registry on December 17, 2007. The provider is doing business as Southwest Medical Clinic.
Where is Harish N. Thakkar M.D. located?
Harish N. Thakkar M.D. is located at 16959 Southwest Fwy Ste 200, Sugar Land, TX 77479. The listed phone number is (281) 903-7019.
What is Harish N. Thakkar M.D.'s specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.
Is Harish N. Thakkar M.D. enrolled in Medicare?
Yes. Harish N. Thakkar M.D. is registered in the Medicare PECOS enrollment system.
When is Harish N. Thakkar M.D.'s Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Texas, Clinic/Group Practice) is due for revalidation by December 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Harish N. Thakkar M.D.?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Harish N. Thakkar M.D.. 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 Harish N. Thakkar M.D. hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 45D2065434) is associated with this NPI, valid through September 8, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Harish N. Thakkar M.D. was last updated on October 17, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Southwest Medical Clinic · NPI 1235312901
Primary Care organization in Sugar Land, Texas. Organization record, active in the CMS NPPES registry since December 17, 2007.
## Identity
- **NPI:** 1235312901 (Entity type: Organization)
- **Enumerated:** December 17, 2007
- **Primary specialty:** Clinic/Center - Primary Care · taxonomy 261QP2300X
- **Legal business name:** Harish N. Thakkar M.d.
- **Organization subpart:** No
- **Authorized official:** Harish Thakkar, PRESIDENT
## Practice location
- **Address:** 16959 SOUTHWEST FWY STE 200, Sugar Land, TX 77479-3481
- **Phone:** (281) 903-7019 · **Fax:** (832) 886-4729
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** December 31, 2026 (Non-DME Part B, Texas, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 1 clinician (Internal Medicine) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 17, 2023
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1235312901) · Data from the CMS NPPES public registry.