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SHAWN K. KAKU, M.D., INC.
NPI 1992118616
Internal Medicine - Critical Care Medicine in Castro Valley, CA

Active since June 10, 2014
20103 LAKE CHABOT RD, CASTRO VALLEY, CA 94546(510) 537-1234 Get Directions Write a Review

NPPES record last updated: July 6, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Shawn K. Kaku, M.d., Inc. NPPES

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

SHAWN K. KAKU, M.D., INC. (NPI 1992118616) is a healthcare organization registered as a critical care medicine in Castro Valley, California and active in the NPI registry since June 2014. The organization lists Shawn Keiji Kaku, President, as its authorized official.

NPPES Registry Identity

NPI1992118616
Entity TypeOrganization
Primary Taxonomy207RC0200X
Legal Business NameSHAWN K. KAKU, M.D., INC.
Location Address20103 LAKE CHABOT RDCastro Valley, CA 94546-5305
Mailing AddressPo Box 2098San Ramon, CA 94583-7098
Phone(510) 537-1234
Organization SubpartNo
Authorized OfficialShawn Keiji KakuPresident · (310) 435-3063
Enumeration DateJune 10, 2014
Last NPPES UpdateJuly 6, 2016
✔ NPI 1992118616 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RC0200X
Definition
An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.
20103 LAKE CHABOT RD, Castro Valley, CA 94546
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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)

Shawn K. Kaku, 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 Shawn K. Kaku, M.D., Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

Shawn Kaku, MD
Critical Care (Intensivists)
NPI 1093977696
300 PASTEUR DR
Stanford, CA 94305
(650) 723-4000
✔ PECOS✔ Accepts Medicare19 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 Shawn K. Kaku, M.D., Inc.'s NPI number?

The NPI number for Shawn K. Kaku, M.D., Inc. is 1992118616. It was assigned to this organization in the NPPES registry on June 10, 2014.

Where is Shawn K. Kaku, M.D., Inc. located?

Shawn K. Kaku, M.D., Inc. is located at 20103 Lake Chabot Rd, Castro Valley, CA 94546. The listed phone number is (510) 537-1234.

What is Shawn K. Kaku, M.D., Inc.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Shawn K. Kaku, M.D., Inc. enrolled in Medicare?

Yes. Shawn K. Kaku, M.D., Inc. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Shawn K. Kaku, M.D., Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Critical Care (Intensivists)) reassigns their Medicare billing to Shawn K. Kaku, 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 Shawn K. Kaku, M.D., Inc. was last updated on July 6, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.