Mardella Regala Birondo
Physician Assistant · Palo Alto, CA
Mardella Regala Birondo is a physician assistant with a practice address in Palo Alto, California, and NPI 1861253346, issued on Jan 22, 2024. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mardella Regala Birondo
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 795 EL Camino Real, Palo Alto, CA 94301
- Phone
- (650) 853-2951
- Enumerated
- Jan 22, 2024
- Record last updated
- Jan 3, 2025
- Medicare enrollment
- Enrolled (PECOS I20250306002916); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 795 EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mardella Regala Birondo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Sutter Bay Medical FoundationSan Mateo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mardella Regala Birondo among 14,451 physician assistant records in California
Mardella Regala Birondo is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 87% of them.
- NPI issued2024 · 87% of these records are older, 7% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2024 · median 2018 among the 7,214 with a school on file
- Record last updated2025 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
155 physician assistant records list a practice address in Palo Alto
They are 155 of the 7,617 NPPES records with a practice address in Palo Alto, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Palo Alto → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Sean Cutright, P.A.Palo Alto, CA 943011063581239
- Kathleen Erickson, PAPalo Alto, CA 943011063567295
- Sandra Ewers, PAPalo Alto, CA 943011104915370
- Kelly Heath, P.A-CPalo Alto, CA 943011174553168
- Zan Huang, PAPalo Alto, CA 943011831330240
- Douglas Jacobs, PAPalo Alto, CA 943011972639839
- Steven Johnson, P.A.Palo Alto, CA 943011063584126
- Danny Kay, P.A.-CPalo Alto, CA 943011568613339
Common questions
What is Mardella Regala Birondo's NPI number?
Mardella Regala Birondo's National Provider Identifier (NPI) is 1861253346, issued on Jan 22, 2024. An NPI identifies a provider in billing; it is not a license.
Where is Mardella Regala Birondo located?
The NPPES record lists a practice address at 795 EL Camino Real, Palo Alto, CA, 94301. Phone: (650) 853-2951. Providers update this record themselves, so call before visiting.
How can I verify Mardella Regala Birondo's license?
Search the California board that licenses this profession; the NPPES record confirms identity 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.