Mary Ambrose, MA CCC-SLP
NPI 1538601042 · Speech-Language Pathologist · Ashburn, VA
Enrolled with Medicare as Practitioner - Qualified Speech Language Pathologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Ambrose, MA CCC-SLP is a Speech-Language Pathologist provider in Ashburn, VA (NPI 1538601042).
Provider details
- NPI number
- 1538601042
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- MA CCC-SLP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 01078899 (VA)
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
9 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
418 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) |
|---|---|---|
| Therapy Procedure for a Range of Mental Processes, Each Additional 15 Minutes97130 | 207 | $23 |
| Treatment of Speech, Language, Voice, Communication, And/Or Hearing Processing Disorder92507 | 104 | $81 |
| Therapy Procedure for a Range of Mental Processes, Initial 15 Minutes97129 | 90 | $24 |
| Test to Assess the Ability to Complete Specific Functional Tasks Applicable to Environment96125 | 17 | $101 |
Typical Medicare-allowed amounts for these services range $23–$101 (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
- 2016-11-15
- Last updated
- 2016-11-15
Frequently asked questions
- What is Mary Ambrose's NPI number?
- Mary Ambrose's National Provider Identifier (NPI) is 1538601042, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Ambrose's specialty?
- Mary Ambrose is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Mary Ambrose located?
- Mary Ambrose's practice location on file with NPPES is 21160 Maple Branch Ter, Ashburn, VA 20147-6160.
- What is Mary Ambrose's phone number?
- The practice phone number listed in the NPPES registry for Mary Ambrose is (571) 291-6192.
- Does Mary Ambrose accept Medicare?
- Mary Ambrose is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Ambrose's NPI active?
- Yes — Mary Ambrose's NPI (1538601042) is active in the NPPES registry as of the last update on 2016-11-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.