GRETCHEN MAY AOANAN CALACHAN AUD
NPI 1104559426
Audiologist in Phoenix, AZ
About Gretchen May Aoanan Calachan Aud NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GRETCHEN MAY AOANAN CALACHAN AUD (NPI 1104559426) is an individual audiologist in Phoenix, Arizona, licensed in Arizona (DA13878) and active in the NPI registry since July 2022. She is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Gretchen May Aoanan Calachan Aud 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.
Medicare Billing Reassignments
2Medicare enrollment records show Gretchen May Calachan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Phoenix, AZ 85028
- Reassigned Medicare billing, Arizona enrollment
- 25 clinicians in this Medicare group
Scottsdale, AZ 85254
- Reassigned Medicare billing, Arizona enrollment
- 822 clinicians in this Medicare group
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 4
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85028 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 13
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Gretchen May Calachan's NPI number?
The NPI number for Gretchen May Calachan is 1104559426. It was assigned to this individual provider in the NPPES registry on July 5, 2022.
Where is Gretchen May Calachan located?
Gretchen May Calachan practices at 4530 E Shea Blvd Ste 180, Phoenix, AZ 85028. The listed phone number is (602) 264-4834.
What is Gretchen May Calachan's specialty?
The primary specialty registered for this NPI is Audiologist with taxonomy code 231H00000X.
Is Gretchen May Calachan enrolled in Medicare?
Yes. Gretchen May Calachan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Gretchen May Calachan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gretchen May Calachan reassigns Medicare benefits to 2 organizations: Arizona Otolaryngology Consultants, PC (Phoenix, AZ) and Honorhealth Ambulatory (Scottsdale, AZ). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gretchen May Calachan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gretchen May Calachan accept?
Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona, Cigna HealthCare of Arizona, Inc and Oscar Health Plan, Inc. list Gretchen May Calachan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Gretchen May Calachan was last updated on January 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.
# Gretchen May Aoanan Calachan, AUD · NPI 1104559426
Audiologist provider in Phoenix, Arizona. Individual provider, active in the CMS NPPES registry since July 5, 2022.
## Identity
- **NPI:** 1104559426 (Entity type: Individual)
- **Enumerated:** July 5, 2022
- **Primary specialty:** Audiologist · taxonomy 231H00000X
- **State license:** DA13878 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 4530 E SHEA BLVD STE 180, Phoenix, AZ 85028-6042
- **Phone:** (602) 264-4834
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Arizona Otolaryngology Consultants, PC (NPI 1679538441, Phoenix, AZ); Honorhealth Ambulatory (NPI 1205188158, Scottsdale, AZ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** January 7, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1104559426) · Data from the CMS NPPES public registry.