TOMMY H. TOMIZAWA, MD, INC
NPI 1598830085
Internal Medicine in Los Angeles, CA
About Tommy H. Tomizawa, Md, Inc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TOMMY H. TOMIZAWA, MD, INC (NPI 1598830085) is a healthcare organization registered as an internal medicine in Los Angeles, California and active in the NPI registry since November 2006. The organization lists Tommy H. Tomizawa, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Tommy H. Tomizawa, Md, 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 Tommy H. Tomizawa, MD, Inc, 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.
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 Tommy H. Tomizawa, MD, Inc's NPI number?
The NPI number for Tommy H. Tomizawa, MD, Inc is 1598830085. It was assigned to this organization in the NPPES registry on November 21, 2006.
Where is Tommy H. Tomizawa, MD, Inc located?
Tommy H. Tomizawa, MD, Inc is located at 8635 W 3rd St #880w, Los Angeles, CA 90048. The listed phone number is (310) 657-9356.
What is Tommy H. Tomizawa, MD, Inc's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Tommy H. Tomizawa, MD, Inc enrolled in Medicare?
Yes. Tommy H. Tomizawa, MD, Inc is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Tommy H. Tomizawa, MD, Inc?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Tommy H. Tomizawa, MD, 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 Tommy H. Tomizawa, MD, Inc 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.
# Tommy H. Tomizawa, Md, Inc · NPI 1598830085
Internal Medicine organization in Los Angeles, California. Organization record, active in the CMS NPPES registry since November 21, 2006.
## Identity
- **NPI:** 1598830085 (Entity type: Organization)
- **Enumerated:** November 21, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Tommy Tomizawa, PRESIDENT
## Practice location
- **Address:** 8635 W 3RD ST, #880W, Los Angeles, CA 90048-6101
- **Phone:** (310) 657-9356 · **Fax:** (310) 657-9379
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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:** August 22, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1598830085) · Data from the CMS NPPES public registry.