Gregory Hall, MA
NPI 1871580233 · Audiologist · San Marcos, CA
Enrolled with Medicare as Practitioner - Qualified Audiologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Hall, MA is a Audiologist provider in San Marcos, CA (NPI 1871580233).
Provider details
- NPI number
- 1871580233
- Entity type
- Individual
- Primary specialty
- AudiologistSpeech, Language and Hearing Service Providers
- Credential
- MA
- Sex
- Male
- Sole proprietor
- Yes
- License
- AU873 (CA)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
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
20 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
78 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 for Eardrum and Muscle Function92550 | 39 | $23 |
| Comprehensive Hearing and Speech Recognition Test92557 | 39 | $39 |
Typical Medicare-allowed amounts for these services range $23–$39 (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
- 2005-09-30
- Last updated
- 2025-10-27
- Certified
- 2025-10-27
Frequently asked questions
- What is Gregory Hall's NPI number?
- Gregory Hall's National Provider Identifier (NPI) is 1871580233, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Hall's specialty?
- Gregory Hall is listed in the NPPES registry with a primary specialty of Audiologist (Speech, Language and Hearing Service Providers).
- Where is Gregory Hall located?
- Gregory Hall's practice location on file with NPPES is 910 W San Marcos Blvd, San Marcos, CA 92078-1115.
- What is Gregory Hall's phone number?
- The practice phone number listed in the NPPES registry for Gregory Hall is (760) 471-1196.
- Does Gregory Hall accept Medicare?
- Gregory Hall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Hall's NPI active?
- Yes — Gregory Hall's NPI (1871580233) is active in the NPPES registry as of the last update on 2025-10-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.