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THONG DO, M.D., INC.
NPI 1285938506
Internal Medicine - Nephrology in Hanford, CA

Active since December 29, 2010
550 W GRANGEVILLE BLVD, HANFORD, CA 93230(559) 585-8364(559) 585-8663 Get Directions Write a Review

NPPES record last updated: June 6, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Thong Do, M.d., Inc. NPPES

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

THONG DO, M.D., INC. (NPI 1285938506) is a healthcare organization registered as a nephrology in Hanford, California and active in the NPI registry since December 2010. The organization lists Thong Huy Do, President, as its authorized official.

NPPES Registry Identity

NPI1285938506
Entity TypeOrganization
Primary Taxonomy207RN0300X
Legal Business NameTHONG DO, M.D., INC.
Location Address550 W GRANGEVILLE BLVDHanford, CA 93230-2857
Mailing Address550 W Grangeville BlvdHanford, CA 93230-2857 · (559) 585-8364 · Fax (559) 585-8663
Phone(559) 585-8364
Fax(559) 585-8663
Organization SubpartNo
Authorized OfficialThong Huy DoPresident · (559) 585-8364
Enumeration DateDecember 29, 2010
Last NPPES UpdateJune 6, 2011
✔ NPI 1285938506 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License✔ Licensed in CA · A100983
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.
550 W GRANGEVILLE BLVD, Hanford, CA 93230
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE 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)

Thong Do, M.d., Inc. 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 Thong Do, M.D., Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Thong Do, M.D.
Internal Medicine
NPI 1437369303
550 W GRANGEVILLE BLVD
Hanford, CA 93230
(559) 212-4599
✔ PECOS0.8 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 Thong Do, M.D., Inc.'s NPI number?

The NPI number for Thong Do, M.D., Inc. is 1285938506. It was assigned to this organization in the NPPES registry on December 29, 2010.

Where is Thong Do, M.D., Inc. located?

Thong Do, M.D., Inc. is located at 550 W Grangeville Blvd, Hanford, CA 93230. The listed phone number is (559) 585-8364.

What is Thong Do, M.D., Inc.'s specialty?

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

Is Thong Do, M.D., Inc. enrolled in Medicare?

Yes. Thong Do, M.D., Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Thong Do, M.D., Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Thong Do, M.D., Inc.. 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.

When was this NPI record last updated?

The NPPES record for Thong Do, M.D., Inc. was last updated on June 6, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.