Doctor profile · Federal record
Dr. Catherine Aler
Nurse Practitioner · Naperville, IL
- NPI 1134584964
- Accepts Medicare
- MIPS 91.4 / 100 · 2023
- 22 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
801 S Washington St
Naperville, IL 605407430
(630) 527-3000 - Mailing address
-
12550 Larkspur Ln
Plainfield, IL 605855545
Credentials & registration
- NPI registered
- December 2015 — 11 yrs on file
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 363L00000X — NUCC code
- State license (1)
- Illinois #209.005434
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1134584964. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
135
Distinct HCPCS
2
Medicare allowed
$23,756
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99291 |
Critical care, first 30-74 minutes | 122 | 117 | $190 | |
36620 |
Insertion of artery tube for blood sampling or infusion through skin | 13 | 13 | $40 |
In context: peer comparison
Among 37 peers in Naperville Nurse Practitioner, average services per provider: 198. This provider delivers 0.7× the peer median.Open Payments
Industry payments received
All-time total
$17
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Olympus America INC. | 1 | $17.16 |
By nature of payment
Frequently asked questions
What is Dr. Catherine Aler's medical specialty?
Dr. Catherine Aler practices Nurse Practitioner in Naperville, IL.
Where does Dr. Catherine Aler practice?
Dr. Catherine Aler practices at 801 S Washington St, Naperville, IL 605407430. Office phone: 6305273000.
What is Dr. Catherine Aler's NPI?
Dr. Catherine Aler's National Provider Identifier (NPI) is 1134584964, issued by NPPES.
Does Dr. Catherine Aler accept Medicare assignment?
Yes. Dr. Catherine Aler accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Catherine Aler commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Insertion of artery tube for blood sampling or infusion through skin (HCPCS 36620). Source: CMS Medicare Physician & Other Practitioners file.