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Edit this profileAt a glance
- 801 S Washington St, Naperville, IL 60540
About Catherine Aler
Listed in the NPI registry as a nurse practitioner, Catherine Aler practices in Naperville, IL. According to Medicare claims data, Catherine cared for 148 Medicare patients across 154 services. The services billed most often include critical care, first 30-74 minutes and insertion of artery tube for blood sampling or infusion through skin. NPI 1134584964 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (630) 527-3000
- Email not available
Practice Locations
801 S WASHINGTON ST
Naperville, IL 60540
Procedures Most Often Billed to Medicare
154 services · 148 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of artery tube for blood sampling or infusion through skin | Procedure | 36620 |
31 | More than most peers in Nurse Practitioner |
| Critical care, first 30-74 minutes | Office visit | 99291 |
123 | More than most peers in Nurse Practitioner |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other nurse practitioners at this location 6
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 30 related providers in 4 groups
Other nurse practitioners in Naperville 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2004 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of artery tube for blood sampling or infusion through skin 8
Providers in IL who bill this service to Medicare most often.
Common questions
What is Catherine Aler's specialty?
Catherine Aler is a nurse practitioner in Naperville, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Catherine Aler?
Catherine Aler is listed at 801 S Washington St, Naperville, IL 60540. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Catherine Aler?
The number on file is (630) 527-3000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Catherine Aler's NPI number?
Catherine Aler's National Provider Identifier is 1134584964. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Catherine Aler's education?
Catherine Aler attended Other, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
How long has Catherine Aler been practicing?
Catherine Aler has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
What is Catherine Aler known for?
According to Medicare billing data, Catherine Aler performs procedures including insertion of artery tube for blood sampling or infusion through skin, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Catherine Aler confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Catherine Aler. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.