ALISON T MATSUNAGA MD
NPI 1770655078
Pediatrics - Pediatric Hematology-Oncology in Oakland, CA
About Alison T Matsunaga Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALISON T MATSUNAGA MD (NPI 1770655078) is an individual pediatric hematology-oncology provider in Oakland, California, licensed in California (G63127) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1986).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Alison T Matsunaga 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 Alison Matsunaga reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 1,159 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.
OAKLAND, CA 94609
OAKLAND, CA 94609
OAKLAND, CA 94609
OAKLAND, CA 94609
OAKLAND, CA 94609
OAKLAND, CA 94609
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 Alison Matsunaga's NPI number?
The NPI number for Alison Matsunaga is 1770655078. It was assigned to this individual provider in the NPPES registry on November 14, 2006.
Where is Alison Matsunaga located?
Alison Matsunaga practices at 747 52nd Street, Oakland, CA 94609. The listed phone number is (510) 428-3372.
What is Alison Matsunaga's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.
Is Alison Matsunaga enrolled in Medicare?
Yes. Alison Matsunaga 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 Alison Matsunaga's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alison Matsunaga reassigns Medicare benefits to 3 organizations: University Of California San Francisco (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and Ucsf Pediatrics Associates (San Francisco, 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 Alison Matsunaga'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 Alison Matsunaga was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Alison T Matsunaga, MD · NPI 1770655078
Pediatric Hematology-Oncology physician in Oakland, California. Individual provider, active in the CMS NPPES registry since November 14, 2006.
## Identity
- **NPI:** 1770655078 (Entity type: Individual)
- **Enumerated:** November 14, 2006
- **Primary specialty:** Pediatrics - Pediatric Hematology-Oncology · taxonomy 2080P0207X
- **State license:** G63127 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 747 52ND STREET, Oakland, CA 94609
- **Phone:** (510) 428-3372 · **Fax:** (510) 601-3916
## 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): University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); Ucsf Pediatrics Associates (NPI 1376614016, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Geffen School Of Medicine, class of 1986
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicaid 00G631270 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1770655078) · Data from the CMS NPPES public registry.