Marco Antonio Ayala, M.D.
Otolaryngology Physician · Carlsbad, CA
Marco Antonio Ayala, M.D. is an otolaryngology physician with a practice address in Carlsbad, California, and NPI 1023089992, issued on Jan 30, 2006. Check the license (California C186140, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marco Antonio Ayala
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- C186140 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2390 Faraday Ave, Carlsbad, CA 92008
- Phone
- (757) 953-2790
- Enumerated
- Jan 30, 2006
- Record last updated
- Dec 18, 2025
- Medicare enrollment
- Enrolled (PECOS I20220519000009); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 1,212 in California → Look up another NPI →
Also registered at 2390 Faraday Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vishal Banthia, MDOtolaryngology Physician1043396559
- Kathy Bonny-Redding, L.H.A.S., A.A.Hearing Instrument Specialist1740634856
- Lydia Earles, AUDAudiologist1528897899
- Natalie Loyola, AU.D.Audiologist1528531159
- Ritvik Mehta, MDOtolaryngology/Facial Plastic Surgery Physician1245393586
- Sara Poggi, PA-CPhysician Assistant1265119911
Verify Marco Antonio Ayala in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C186140Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average otolaryngology physician in 2024
98 Medicare Part D claims for 62 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.
Most prescribed
- Fluticasone Propionate37 claims
- Doxycycline Hyclate18 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 3 group practices
- First Choice Physician PartnersTurlock, CA
- Ritvik Mehta MD ApcCarlsbad, CA
- Upmc Altoona Regional Health Services, Inc.Altoona, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marco Antonio Ayala among 1,212 otolaryngology physician records in California
Marco Antonio Ayala, M.D. is one of 1,212 otolaryngology physician records with a practice address in California. 80% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 52% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2003 · median 2004 among the 818 with a school on file
- Record last updated2025 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in California
There are 1,212 otolaryngology physician records in California.
All 1,212 in California → Every provider in Carlsbad → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Vishal Banthia, MDCarlsbad, CA 920081043396559
- Matthew Hirsch, M.D.Carlsbad, CA 920091831331693
- Supriti Paul, MDCarlsbad, CA 920111316063936
- Moses Salgado, M.D.Carlsbad, CA 920111235345489
- Robert Bone, M.D.Del Mar, CA 920141154396737
- Stephen Dent, MDEncinitas, CA 920241215943139
- Michael Morelock, M.D.Escondido, CA 920251851457527
- Saurabh Shah, MDEscondido, CA 920251790717957
Common questions
What is Marco Antonio Ayala, M.D.'s NPI number?
Marco Antonio Ayala, M.D.'s National Provider Identifier (NPI) is 1023089992, issued on Jan 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marco Antonio Ayala, M.D. located?
The NPPES record lists a practice address at 2390 Faraday Ave, Carlsbad, CA, 92008. Phone: (757) 953-2790. Providers update this record themselves, so call before visiting.
How can I verify Marco Antonio Ayala, M.D.'s license?
NPPES lists California license number C186140, 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 Marco Antonio Ayala, M.D. prescribe under Medicare Part D?
In 2024, Marco Antonio Ayala, M.D. had 98 Medicare Part D claims for 62 beneficiaries; the average among otolaryngology physician prescribers was 541. 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.