Katrina Blum
Katrina Blum is a provider specialising in Speech-Language Pathologist in Naperville, IL, registered under NPI 1154000677.
Getting there
The practice address on file is 2244 95TH ST STE 102, Naperville, IL 60564. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 146017089 | IL | Speech-Language Pathologist |
| 2202012377 | VA | Speech-Language Pathologist primary |
Licences are recorded in 2 states: IL, VA. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Qualified Speech Language Pathologist
- PAC ID
- 4587149851
Enrolled in Medicare 3 times, across 3 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Illinois | I20260403001698 | Practitioner - Qualified Speech Language Pathologist |
| Virginia | I20260403001987 | Practitioner - Qualified Speech Language Pathologist |
| Texas | I20260507002594 | Practitioner - Qualified Speech Language Pathologist |
Medicare enrolment is recorded as approved under the provider type Practitioner - Qualified Speech Language Pathologist. There are 3 separate enrolment records across 3 states (IL, VA, TX). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
Licensed in 2 states
This provider holds licences in 2 states: Illinois and Virginia. The practice address on file is in Naperville, IL, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- 146017089
- Specialty
- Speech-Language Pathologist
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Speech-Language Pathologist covers
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing. NUCC Health Care Provider Taxonomy, code 235Z00000X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 235Z00000X | Speech-Language Pathologist | 146017089 | IL | |
| 235Z00000X | Speech-Language Pathologist | 2202012377 | VA | primary |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1154000677 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 12, 2023 |
| Last updated | Apr 8, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
2244 95TH ST STE 102 Naperville, IL 60564 (630) 687-9437 |
| Mailing address |
3000 COOLIDGE ST Oak Brook, IL 60523 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 1 | 5 | 4 | 0 | 0 | 0 | 6 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 1 | 4 | 0 | 0 | 0 | 6 | 5 |
Sum = 43 · next multiple of 10 = 50 · check digit = 7 · actual last digit = 7
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.