Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Gretchen May Aoanan Calachan, AUD

Individual provider Audiologist · NPI 1104559426

Gretchen May Aoanan Calachan, AUD is a Qualified Audiologist in Phoenix, Arizona. Qualified in 2022, 4 years ago. Practices with Arizona Otolaryngology Consultants, PC, a 22-clinician group and accepts Medicare assignment. Licensed in Arizona.

Years since qualifying
4
Licensed in
AZ
In the registry since
2022
What do these letters mean?
AUD — Doctor of Audiology
A hearing specialist who tests hearing and fits hearing aids.

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Practice location Address checks out

4530 E Shea Blvd Ste 180
Phoenix, AZ 85028-6042
Phone: (602) 264-4834
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Audiologist (primary) Taxonomy 231H00000X · Licence DA13878 (AZ)

Record details

NPI number1104559426
Entity typeIndividual (Type 1)
GenderFemale
Credentials AUD
Sole proprietorNo
NPI enumeratedJuly 5, 2022
Last updated in NPPESJanuary 7, 2025
Certification dateJanuary 7, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyQUALIFIED AUDIOLOGIST
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice Arizona Otolaryngology Consultants, Pc — 22 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients170
Services billed 293 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Arizona Otolaryngology Consultants, PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 22 clinicians in the practice; 11 are shown here.

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