Diana Ahn, AUD
NPI 1659892149 · Audiologist · Los Angeles, CA
Enrolled with Medicare as Practitioner - Qualified Audiologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Ahn, AUD is a Audiologist provider in Los Angeles, CA (NPI 1659892149).
Provider details
- NPI number
- 1659892149
- Entity type
- Individual
- Primary specialty
- AudiologistSpeech, Language and Hearing Service Providers
- Credential
- AUD
- Sex
- Female
- Sole proprietor
- No
- License
- AU3200 (CA)
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
8 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
397 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) |
|---|---|---|
| Test to Assess Middle Ear Function92567 | 155 | $18 |
| Comprehensive Hearing and Speech Recognition Test92557 | 113 | $39 |
| Evaluation and Testing for Balance With Recording92540 | 54 | $117 |
| Placement of Ear Probe for Computerized Measurement of Repeated Sounds With Interpretation and Report92588 | 33 | $36 |
| Test to Assess Balance During Warm and Cool Irrigation in Both Ears92537 | 23 | $43 |
| Test for Abnormal Eye Movement Using a Rotating Chair92546 | 19 | $154 |
Typical Medicare-allowed amounts for these services range $18–$154 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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
- 2017-07-05
- Last updated
- 2022-11-29
- Certified
- 2022-11-29
Frequently asked questions
- What is Diana Ahn's NPI number?
- Diana Ahn's National Provider Identifier (NPI) is 1659892149, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Ahn's specialty?
- Diana Ahn is listed in the NPPES registry with a primary specialty of Audiologist (Speech, Language and Hearing Service Providers).
- Where is Diana Ahn located?
- Diana Ahn's practice location on file with NPPES is 1640 Marengo St Ste 100, Los Angeles, CA 90033-1075.
- What is Diana Ahn's phone number?
- The practice phone number listed in the NPPES registry for Diana Ahn is (213) 764-2843.
- Does Diana Ahn accept Medicare?
- Diana Ahn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Ahn's NPI active?
- Yes — Diana Ahn's NPI (1659892149) is active in the NPPES registry as of the last update on 2022-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.