NPPES file of Aug 9, 2026

Luis Alberto Ayala, M.D.

Pediatrics Physician · Redwood City, CA

Luis Alberto Ayala, M.D. is a pediatrics physician with a practice address in Redwood City, California, and NPI 1285730929, issued on Sep 16, 2006. Check the license (California A60697, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285730929
Name
Luis Alberto Ayala
Credential
M.D.
Primary taxonomy
Pediatrics Physician 208000000X
License number
A60697 CA
Self-reported in NPPES; status is on the state search
Practice location
801 Brewster Ave., Redwood City, CA 94063
Phone
(650) 368-8583
Enumerated
Sep 16, 2006
Record last updated
May 29, 2025
Fax
(650) 361-8396
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Luis Alberto Ayala in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A60697
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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97% fewer Medicare Part D claims than the average pediatrics physician in 2024

11 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D.

  1. Luis Ayala11
  2. Specialty average375

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.

Luis Alberto Ayala among 9,272 pediatrics physician records in California

Luis Alberto Ayala, M.D. is one of 9,272 pediatrics physician records with a practice address in California. 31% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 56% newer
  • In a Medicare fileYes · 31% of these records are
  • In the CMS Doctors and Clinicians fileNo · 8% of these records are
  • Record last updated2025 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

39 pediatrics physician records list a practice address in Redwood City

They are 39 of the 2,795 NPPES records with a practice address in Redwood City, and 9,272 pediatrics physician records in California.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Eugene Baisch, MDRedwood City, CA 940631508944158
  2. Allan Bernstein, MDRedwood City, CA 940631699853283
  3. Eileen Chan, MDRedwood City, CA 940631649280835
  4. Mirta Delgado, DORedwood City, CA 940631720040322
  5. Wayne Easter, MDRedwood City, CA 940631609954296
  6. Elizabeth Fowler, MDRedwood City, CA 940631477563666
  7. Rudy Lopez, MDRedwood City, CA 940631669550216
  8. James O'Donnell, MDRedwood City, CA 940631316025901

Common questions

What is Luis Alberto Ayala, M.D.'s NPI number?

Luis Alberto Ayala, M.D.'s National Provider Identifier (NPI) is 1285730929, issued on Sep 16, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Luis Alberto Ayala, M.D. located?

The NPPES record lists a practice address at 801 Brewster Ave., Redwood City, CA, 94063. Phone: (650) 368-8583. Providers update this record themselves, so call before visiting.

How can I verify Luis Alberto Ayala, M.D.'s license?

NPPES lists California license number A60697, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Luis Alberto Ayala, M.D. prescribe under Medicare Part D?

In 2024, Luis Alberto Ayala, M.D. had 11 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.