Gretchen May Calachan, AUD
NPI 1104559426 · Audiologist · Phoenix, AZ
Enrolled with Medicare as Practitioner - Qualified Audiologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gretchen May Calachan, AUD is a Audiologist provider in Phoenix, AZ (NPI 1104559426).
Provider details
- NPI number
- 1104559426
- Entity type
- Individual
- Primary specialty
- AudiologistSpeech, Language and Hearing Service Providers
- Credential
- AUD
- Sex
- Female
- Sole proprietor
- No
- License
- DA13878 (AZ)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
3 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
278 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Comprehensive Hearing and Speech Recognition Test92557 | 133 | $35 |
| Test to Assess Middle Ear Function92567 | 69 | $16 |
| Analysis and Reprogramming of Inner Ear Implant (7 Years Or Older)92604 | 46 | $86 |
| Evaluation of Hearing Function Related to Surgically Implanted Hearing Device, First Hour92626 | 30 | $83 |
Typical Medicare-allowed amounts for these services range $16–$86 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-07-05
- Last updated
- 2025-01-07
- Certified
- 2025-01-07
Frequently asked questions
- What is Gretchen May Calachan's NPI number?
- Gretchen May Calachan's National Provider Identifier (NPI) is 1104559426, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretchen May Calachan's specialty?
- Gretchen May Calachan is listed in the NPPES registry with a primary specialty of Audiologist (Speech, Language and Hearing Service Providers).
- Where is Gretchen May Calachan located?
- Gretchen May Calachan's practice location on file with NPPES is 4530 E Shea Blvd Ste 180, Phoenix, AZ 85028-6042.
- What is Gretchen May Calachan's phone number?
- The practice phone number listed in the NPPES registry for Gretchen May Calachan is (602) 264-4834.
- Does Gretchen May Calachan accept Medicare?
- Gretchen May Calachan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gretchen May Calachan's NPI active?
- Yes — Gretchen May Calachan's NPI (1104559426) is active in the NPPES registry as of the last update on 2025-01-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.