Erika Del Refugio Ayar, MD
Student in an Organized Health Care Education/Training Program · Vallejo, CA
Erika Del Refugio Ayar, MD is a student in an organized health care education/training program with a practice address in Vallejo, California, and NPI 1346990215, issued on Mar 24, 2022. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Erika Del Refugio Ayar
- Credential
- MD
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- Practice location
- 975 Sereno Dr, Vallejo, CA 94589
- Phone
- (707) 651-4071
- Enumerated
- Mar 24, 2022
- Record last updated
- Mar 24, 2022
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 40,652 in California → Look up another NPI →
Also registered at 975 Sereno Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joel Aandahl, NPAdult Health Nurse Practitioner1891423653
- Noman Absar, MDCritical Care Medicine (Internal Medicine) Physician1205908951
- Anthony Acquaviva, MDUrology Physician1457439283
- Jhonnard James Acuna, CRNACertified Registered Nurse Anesthetist1205997327
- Omid AfshariPharmacist1184165391
- Eesha AftabStudent in an Organized Health Care Education/Training Program1770421687
Verify Erika Del Refugio Ayar 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
3% fewer Medicare Part D claims than the average student in an organized health care education/training program in 2024
180 Medicare Part D claims for 68 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium17 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.
Erika Del Refugio Ayar among 40,652 student in an organized health care education/training program records in California
Erika Del Refugio Ayar, MD is one of 40,652 student in an organized health care education/training program records with a practice address in California. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 34% of them.
- NPI issued2022 · 34% of these records are older, 58% newer
- In a Medicare fileYes · 16% of these records are
- In the CMS Doctors and Clinicians fileNo · 6% of these records are
- Record last updated2022 · 26% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
95 student in an organized health care education/training program records list a practice address in Vallejo
They are 95 of the 2,836 NPPES records with a practice address in Vallejo, and 40,652 student in an organized health care education/training program records in California.
All 40,652 in California → Every provider in Vallejo → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Kelsey Goodwin, D.O.Vallejo, CA 945891649628512
- Evan HirschbeinVallejo, CA 945891003270646
- Joanna IngebritsenVallejo, CA 945891245764539
- An-An Jiang, DPMVallejo, CA 945891023462629
- Kelsey Krigstein, MDVallejo, CA 945891871940940
- Chloe Le Marchand, M.D.Vallejo, CA 945891194172247
- Megan Matsumoto, PH.D.Vallejo, CA 945891215481890
- Sean NisamVallejo, CA 945891003341777
Common questions
What is Erika Del Refugio Ayar, MD's NPI number?
Erika Del Refugio Ayar, MD's National Provider Identifier (NPI) is 1346990215, issued on Mar 24, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Erika Del Refugio Ayar, MD located?
The NPPES record lists a practice address at 975 Sereno Dr, Vallejo, CA, 94589. Phone: (707) 651-4071. Providers update this record themselves, so call before visiting.
How can I verify Erika Del Refugio Ayar, MD's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Erika Del Refugio Ayar, MD prescribe under Medicare Part D?
In 2024, Erika Del Refugio Ayar, MD had 180 Medicare Part D claims for 68 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.