Mary Riordan, M.S. CCC/SLP
NPI 1538317862 · Speech-Language Pathologist · Pewaukee, WI
Enrolled with Medicare as Practitioner - Qualified Speech Language Pathologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Riordan, M.S. CCC/SLP is a Speech-Language Pathologist provider in Pewaukee, WI (NPI 1538317862).
Provider details
- NPI number
- 1538317862
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Credential
- M.S. CCC/SLP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 298-154 (WI)
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
17 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
846 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 | 622 | $20 |
| Therapy Procedure for a Range of Mental Processes, Initial 15 Minutes97129 | 224 | $21 |
Typical Medicare-allowed amounts for these services range $20–$21 (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
- 2008-08-28
- Last updated
- 2008-08-28
Frequently asked questions
- What is Mary Riordan's NPI number?
- Mary Riordan's National Provider Identifier (NPI) is 1538317862, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Riordan's specialty?
- Mary Riordan is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Mary Riordan located?
- Mary Riordan's practice location on file with NPPES is 321 Riverside Drive, Pewaukee, WI 53072-6214.
- What is Mary Riordan's phone number?
- The practice phone number listed in the NPPES registry for Mary Riordan is (262) 691-2300.
- Does Mary Riordan accept Medicare?
- Mary Riordan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Riordan's NPI active?
- Yes — Mary Riordan's NPI (1538317862) is active in the NPPES registry as of the last update on 2008-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.