Sarah Diane Piazza, PA-C
Surgical Physician Assistant · Mountain View, CA
Sarah Diane Piazza, PA-C is a surgical physician assistant with a practice address in Mountain View, California, and NPI 1255881561, issued on Oct 11, 2016. Check the license (California PA53866, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sarah Diane Piazza
- Credential
- PA-C
- Primary taxonomy
- Surgical Physician Assistant 363AS0400X
- License number
- PA53866 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2490 Hospital Dr Ste 111, Mountain View, CA 94040
- Phone
- (650) 934-7520
- Enumerated
- Oct 11, 2016
- Record last updated
- Aug 11, 2022
- Medicare enrollment
- Enrolled (PECOS I20181203002990); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgical physician assistant records → All 1,075 in California → Look up another NPI →
Also registered at 2490 Hospital Dr Ste 111
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shannon Donegan, PA-CSurgical Physician Assistant1497264246
- Gillian Hsieh, MDObstetrics & Gynecology Physician1063765576
- Cassandra Martin, PA-CPhysician Assistant1063906360
- Sarah Sanches, PA-CSurgical Physician Assistant1922672567
- Erica Witek, PA-CSurgical Physician Assistant1801487095
- Reyna Zaver, PA-CPhysician Assistant1992573026
Verify Sarah Diane Piazza in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA53866Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
60% fewer Medicare Part D claims than the average surgical physician assistant in 2024
122 Medicare Part D claims for 93 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. 72 claims were for opioids.
Most prescribed
- Oxycodone-Acetaminophen61 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationMountain View, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sarah Diane Piazza among 1,075 surgical physician assistant records in California
Sarah Diane Piazza, PA-C is one of 1,075 surgical physician assistant records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 70% of them.
- NPI issued2016 · 70% of these records are older, 27% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2016 · median 2012 among the 649 with a school on file
- Record last updated2022 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Physician Assistant providers in California
There are 1,075 surgical physician assistant records in California.
All 1,075 in California → Every provider in Mountain View → Surgical Physician Assistant nationwide →
The 8 surgical physician assistant records with the nearest ZIP codes
- Brooke Abrantes, PA-CMountain View, CA 940401316771298
- Maryam Delucia, PAMountain View, CA 940401689012718
- Shannon Donegan, PA-CMountain View, CA 940401497264246
- Natalie Gillen, PA-CMountain View, CA 940401922477496
- Susan Morgan, PAMountain View, CA 940401053487215
- Paul Pang, PAMountain View, CA 940401114703311
- Chloe PhamMountain View, CA 940401851168850
- Sarah Sanches, PA-CMountain View, CA 940401922672567
Common questions
What is Sarah Diane Piazza, PA-C's NPI number?
Sarah Diane Piazza, PA-C's National Provider Identifier (NPI) is 1255881561, issued on Oct 11, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Sarah Diane Piazza, PA-C located?
The NPPES record lists a practice address at 2490 Hospital Dr Ste 111, Mountain View, CA, 94040. Phone: (650) 934-7520. Providers update this record themselves, so call before visiting.
How can I verify Sarah Diane Piazza, PA-C's license?
NPPES lists California license number PA53866, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Sarah Diane Piazza, PA-C prescribe under Medicare Part D?
In 2024, Sarah Diane Piazza, PA-C had 122 Medicare Part D claims for 93 beneficiaries; the average among surgical physician assistant prescribers was 304. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.