Allison L Usher, APN-CRNA
Certified Registered Nurse Anesthetist (Crna) (CMS) · Oak Lawn, IL
At a glance
4440 W 95Th St, Oak Lawn, IL 60453-2600
NPPES record updated May 11, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
4440 W 95Th StOak Lawn, IL 60453-2600
Additional reported practice locations
3811 Highland AveDowners Grove, IL 605151555
Phone: 6308529300 9600 Gross Point Rd.
Department Of Anesthesia
Skokie, IL 600761214
Phone: 8479336909
Fax: 8479333829 800 W Central Rd
Arlington Heights, IL 600052349
Phone: 8476181000
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2024
- CMS specialties
- Certified Registered Nurse Anesthetist (Crna)
Practice groups
Reported hospital affiliations
- Advocate Christ Hospital & Medical Center Oak Lawn, IL
- Northwest Community Hospital 1 Arlington Heights, IL
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Service-mix comparison is unavailable for this NPI in the imported Medicare service file.
Industry-reported general payments
No matching general-payment summary in the imported release. This is not a verified zero and does not rule out other payment types or years.
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Certified Registered Nurse Anesthetist (Crna) (CMS)
- Taxonomy code
- 367500000X
- Enumeration date
- Oct 30, 2024
- Record updated
- May 11, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- APN-CRNA
Reported taxonomies and licenses
367500000X · Primary
License reported: 209030884 IL
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
4440 W 95Th StOak Lawn, IL 60453-2600
- Phone
- (708) 684-8000
Mailing address
4820 OAKWOOD AVEDOWNERS GROVE, IL 605153456
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
Report a directory issue