DR. MATTHEW ALAN ZAPALA M.D., PH.D.
NPI 1346482809
Radiology - Pediatric Radiology in San Diego, CA
About Dr. Matthew Alan Zapala M.d., Ph.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MATTHEW ALAN ZAPALA M.D., PH.D. (NPI 1346482809) is an individual pediatric radiology provider in San Diego, California, licensed in California (A114386) and active in the NPI registry since March 2009. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Diego School Of Medicine (2009).
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 and accepts Medicare assignment
Dr. Matthew Alan Zapala M.d., Ph.d. 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
6Medicare enrollment records show Matthew Zapala reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- 71 clinicians in this Medicare group
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- 39 clinicians in this Medicare group
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 360 clinicians in this Medicare group
Chula Vista, CA 91911
- Reassigned Medicare billing, California enrollment
- 51 clinicians in this Medicare group
Fresno, CA 93710
- Reassigned Medicare billing, California enrollment
- 17 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 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.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
SAN DIEGO, CA 92123
SAN DIEGO, CA 92123
SAN DIEGO, CA 92123
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 Matthew Zapala's NPI number?
The NPI number for Matthew Zapala is 1346482809. It was assigned to this individual provider in the NPPES registry on March 30, 2009.
Where is Matthew Zapala located?
Matthew Zapala practices at 3020 Childrens Way, San Diego, CA 92123. The listed phone number is (858) 576-1700.
What is Matthew Zapala's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Pediatric Radiology, with taxonomy code 2085P0229X.
Is Matthew Zapala enrolled in Medicare?
Yes. Matthew Zapala 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 Matthew Zapala's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Zapala reassigns Medicare benefits to 6 organizations: San Diego Diagnostic Radiology Medical Group Inc (San Diego, CA), San Diego Imaging, LLC (San Diego, CA), Regents Of The University Of California (San Diego, CA), San Diego Imaging-Chula Vista LLC (Chula Vista, CA), Wishon Radiological Medical Group, Inc. (Fresno, CA) and 1 more organization, listed in the Medicare section above. 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 Matthew Zapala'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 Matthew Zapala was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 36 days 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. Matthew Alan Zapala, M.D., PH.D. · NPI 1346482809
Pediatric Radiology physician in San Diego, California. Individual provider, active in the CMS NPPES registry since March 30, 2009.
## Identity
- **NPI:** 1346482809 (Entity type: Individual)
- **Enumerated:** March 30, 2009
- **Primary specialty:** Radiology - Pediatric Radiology · taxonomy 2085P0229X
- **State license:** A114386 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3020 CHILDRENS WAY, San Diego, CA 92123-4223
- **Phone:** (858) 576-1700
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): San Diego Diagnostic Radiology Medical Group Inc (NPI 1205867017, San Diego, CA); San Diego Imaging, LLC (NPI 1780312371, San Diego, CA); Regents Of The University Of California (NPI 1558463927, San Diego, CA); San Diego Imaging-Chula Vista LLC (NPI 1649207812, Chula Vista, CA); Wishon Radiological Medical Group, Inc. (NPI 1528012168, Fresno, CA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Diego School Of Medicine, class of 2009
## Record status
- **NPPES last updated:** September 29, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1346482809) · Data from the CMS NPPES public registry.