DOUGLAS Y. TAMURA M.D.
NPI 1659383461
Surgery - Surgical Critical Care in Madera, CA
About Douglas Y. Tamura M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DOUGLAS Y. TAMURA M.D. (NPI 1659383461) is an individual surgical critical care provider in Madera, California, licensed in California (A72165) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Douglas Y. Tamura M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Douglas Tamura reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Madera, CA 93636
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Valley Childrens Specialty Medical Group Inc
- 63 clinicians in this Medicare group
Modesto, CA 95350
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Valley Childrens Medical Group
- 387 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MADERA, CA 93638
MADERA, CA 93638
MADERA, CA 93638
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 Douglas Tamura's NPI number?
The NPI number for Douglas Tamura is 1659383461. It was assigned to this individual provider in the NPPES registry on August 12, 2006.
Where is Douglas Tamura located?
Douglas Tamura practices at 9300 Valley Childrens Pl, Madera, CA 93638. The listed phone number is (559) 353-7291.
What is Douglas Tamura's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgical Critical Care, with taxonomy code 2086S0102X.
Is Douglas Tamura enrolled in Medicare?
Yes. Douglas Tamura is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Douglas Tamura's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Douglas Tamura reassigns Medicare benefits to 2 organizations: Valley Children's Specialty Medical Group, Inc. (Madera, CA) and Valley Children's Medical Group (Modesto, CA). Each 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 Douglas Tamura's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Douglas Tamura was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Douglas Y. Tamura, M.D. · NPI 1659383461
Surgical Critical Care physician in Madera, California. Individual provider, active in the CMS NPPES registry since August 12, 2006.
## Identity
- **NPI:** 1659383461 (Entity type: Individual)
- **Enumerated:** August 12, 2006
- **Primary specialty:** Surgery - Surgical Critical Care · taxonomy 2086S0102X
- **State license:** A72165 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9300 VALLEY CHILDRENS PL, Madera, CA 93638-8761
- **Phone:** (559) 353-7291 · **Fax:** (559) 353-7286
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Valley Children's Specialty Medical Group, Inc. (NPI 1013968296, Madera, CA); Valley Children's Medical Group (NPI 1437555265, Modesto, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 11, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1659383461) · Data from the CMS NPPES public registry.