DR. HIROYA NAMBU MD
NPI 1801214275
Emergency Medicine in Redwood City, CA
About Dr. Hiroya Nambu Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. HIROYA NAMBU MD (NPI 1801214275) is an individual emergency medicine provider in Redwood City, California, licensed in California (A150799) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS and is a graduate of University Of Pittsburgh School Of Medicine (2014).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Hiroya Nambu Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Hiroya Nambu reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Redwood City, CA 94063
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Palo Alto, CA 94306
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1043354020 (California), NPI 1629301346 (California)
- 2,460 clinicians in this Medicare group
San Jose, CA 95128
- Reassigned Medicare billing, California enrollment
- 197 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94063 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
REDWOOD CITY, CA 94063
REDWOOD CITY, CA 94063
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 Hiroya Nambu's NPI number?
The NPI number for Hiroya Nambu is 1801214275. It was assigned to this individual provider in the NPPES registry on April 2, 2014.
Where is Hiroya Nambu located?
Hiroya Nambu practices at 1100 Veterans Blvd, Redwood City, CA 94063. The listed phone number is (650) 299-2200.
What is Hiroya Nambu's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Hiroya Nambu enrolled in Medicare?
Yes. Hiroya Nambu is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Hiroya Nambu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hiroya Nambu reassigns Medicare benefits to 3 organizations: Permanente Medical Group Inc (Redwood City, CA), County Of Santa Clara (Palo Alto, CA) and Emergency Physicians Associates San Jose PC (San Jose, 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 Hiroya Nambu'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 Hiroya Nambu was last updated on April 14, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dr. Hiroya Nambu, MD · NPI 1801214275
Emergency Medicine physician in Redwood City, California. Individual provider, active in the CMS NPPES registry since April 2, 2014.
## Identity
- **NPI:** 1801214275 (Entity type: Individual)
- **Enumerated:** April 2, 2014
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A150799 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1100 VETERANS BLVD, Redwood City, CA 94063-2037
- **Phone:** (650) 299-2200
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Permanente Medical Group Inc (NPI 1639252604, Redwood City, CA); County Of Santa Clara (NPI 1144330614, Palo Alto, CA); Emergency Physicians Associates San Jose PC (NPI 1306311576, San Jose, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Pittsburgh School Of Medicine, class of 2014
## Record status
- **NPPES last updated:** April 14, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1801214275) · Data from the CMS NPPES public registry.