Marna Scarry-Larkin, MA/CCC/SLP
NPI 1578675369 · Speech-Language Pathologist · San Luis Obispo, CA
Enrolled with Medicare as Practitioner - Qualified Speech Language Pathologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marna Scarry-Larkin, MA/CCC/SLP is a Speech-Language Pathologist provider in San Luis Obispo, CA (NPI 1578675369).
Provider details
- NPI number
- 1578675369
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- MA/CCC/SLP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 5544 (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
19 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
252 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) |
|---|---|---|
| Training for Self-Care Or Home Management, Each 15 Minutes97535 | 129 | $25 |
| Treatment of Speech, Language, Voice, Communication, And/Or Hearing Processing Disorder92507 | 123 | $77 |
Typical Medicare-allowed amounts for these services range $25–$77 (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
- 2006-08-31
- Last updated
- 2008-09-22
Frequently asked questions
- What is Marna Scarry-Larkin's NPI number?
- Marna Scarry-Larkin's National Provider Identifier (NPI) is 1578675369, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marna Scarry-Larkin's specialty?
- Marna Scarry-Larkin is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Marna Scarry-Larkin located?
- Marna Scarry-Larkin's practice location on file with NPPES is 1130 Grove St, San Luis Obispo, CA 93401-2914.
- What is Marna Scarry-Larkin's phone number?
- The practice phone number listed in the NPPES registry for Marna Scarry-Larkin is (805) 543-3945.
- Does Marna Scarry-Larkin accept Medicare?
- Marna Scarry-Larkin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marna Scarry-Larkin's NPI active?
- Yes — Marna Scarry-Larkin's NPI (1578675369) is active in the NPPES registry as of the last update on 2008-09-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.