DR. MARCO ANTONIO AYALA M.D.
NPI 1023089992
Otolaryngology in Carlsbad, CA

Q: What is Marco Ayala's NPI number?

The NPI number for Marco Ayala is 1023089992. It was assigned to this individual provider in the NPPES registry on January 30, 2006.

Q: What is Marco Ayala's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Q: When was this NPI record last updated?

The NPPES record for Marco Ayala was last updated on December 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since January 30, 2006PECOS EnrolledAccepts Medicare Assignment

2390 FARADAY AVE, CARLSBAD, CA 92008(757) 953-2790 Get Directions Write a Review

NPPES record last updated: December 18, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 18, 2025, Dec 12, 2025, Feb 6, 2020 (3 updates tracked since 2020).

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About Dr. Marco Antonio Ayala M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARCO ANTONIO AYALA M.D. (NPI 1023089992) is an individual otolaryngology provider in Carlsbad, California, licensed in California (C186140) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Upmc Altoona, and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1023089992

Entity TypeIndividualMale

Primary Taxonomy207Y00000X

Provider Legal NameDR. MARCO ANTONIO AYALACredential: M.D.

Location Address2390 FARADAY AVECarlsbad, CA 92008-7216

Mailing Address2390 Faraday AveCarlsbad, CA 92008-7216

Phone(757) 953-2790

Sole ProprietorNo

Medical School CMSOtherGraduated 2003

Enumeration DateJanuary 30, 2006

Last NPPES UpdateDecember 18, 20253 updates tracked since enumeration

NPPES CertifiedDecember 18, 2025

✔ NPI 1023089992 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians

Taxonomy Code207Y00000X

License✔ Licensed in CA · C186140

Definition

An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.

2390 FARADAY AVE, Carlsbad, CA 92008

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Secondary Practice Locations 4

Location 15405 Oberlin Dr Fl 2San Diego, CA 92121-1700 · Phone (951) 461-0770

Location 2577 Third AveChula Vista, CA 91910-5619 · Phone (619) 426-5181

Location 315644 Pomerado Rd Ste 400Poway, CA 92064-2418 · Phone (619) 426-5181

Location 439755 Date St Ste 105Murrieta, CA 92563-2007 · Phone (951) 461-0770

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Marco Antonio Ayala M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID244470128

PECOS Enrollment IDI20250624003961

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Marco Ayala reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ritvik Mehta, MD Apc

Same address

Otolaryngology

2390 FARADAY AVE
Carlsbad, CA 92008

Reassigned Medicare billing, California enrollment
24 clinicians in this Medicare group

NPI 1538302997 (858) 909-0770

Sharp Rees-Stealy Medical Group, Inc

21 mi

Internal Medicine

5651 COPLEY DR STE A
San Diego, CA 92111

Reassigned Medicare billing, California enrollment
1,233 clinicians in this Medicare group

NPI 1285616177 (858) 262-6666

First Choice Physician Partners

57 mi

Family Medicine

500 S ANAHEIM HILLS RD, STE 242
Anaheim, CA 92807

Reassigned Medicare billing, California enrollment
488 clinicians in this Medicare group

NPI 1083966691 (714) 974-0611

Dlp Conemaugh Physician Practices LLC

2,151 mi

Family Medicine

200 W MAIN ST
Ligonier, PA 15658

Reassigned Medicare billing, Pennsylvania enrollment
771 clinicians in this Medicare group

NPI 1588070551 (724) 238-9581

Upmc Altoona Regional Health Services, Inc

2,195 mi

Internal Medicine

1414 9TH AVE, STATION MEDICAL CENTER
Altoona, PA 16602

Reassigned Medicare billing, Pennsylvania enrollment
338 clinicians in this Medicare group

NPI 1639158488 (814) 946-1655

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

42 services42 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

38 services28 patients

Diagnostic exam of voice box using a flexible endoscope 31575

This procedure involves a doctor examining your voice box using a flexible endoscope, a thin tube with a light and camera. It's inserted through your nose or mouth to visualize your throat area. It helps detect any abnormalities in your voice box, ensuring optimal vocal health.

22 services19 patients

Diagnostic exam of nasal passages using an endoscope 31231

A diagnostic exam of nasal passages using an endoscope is a non-invasive procedure. A small, flexible tube with a light and camera at the end, called an endoscope, is inserted into the nose. This allows the doctor to view the nasal passages and sinuses, helping to identify any issues.

15 services14 patients

Removal of impacted ear wax 69210

Impacted ear wax removal is a safe procedure to clear blockages in the ear canal caused by hardened ear wax. A healthcare professional uses specialized tools or a gentle irrigation method to loosen and remove the wax, improving hearing and alleviating discomfort.

15 services14 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

12 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Upmc Altoona

Acute Care Hospitals · Altoona, PA

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390073

Location620 Howard AvenueAltoona, PA 16601 · Blair County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92008 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$140.22 typical visit price

range $62.10 – $184.71

Typical copayment $35.05 (range $15.52 – $46.17)

Most-billed visit code 99204

Established Patient

$76.87 typical visit price

range $20.62 – $151.42

Typical copayment $19.21 (range $5.15 – $37.85)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

VISHAL BANTHIA MD

Otolaryngology