DR. JOHN L. BERTOLOZZI D.O.
NPI 1407869779
Anesthesiology in Aurora, IL
About Dr. John L. Bertolozzi D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN L. BERTOLOZZI D.O. (NPI 1407869779) is an individual anesthesiology provider in Aurora, Illinois, licensed in Illinois (036095646) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Loyola Gottlieb Memorial Hospital, and is a graduate of Other (1993).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. John L. Bertolozzi D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
6Medicare enrollment records show John Bertolozzi reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Aurora, IL 60504
- Reassigned Medicare billing, Illinois enrollment
- 53 clinicians in this Medicare group
Aurora, IL 60502
- Reassigned Medicare billing, Illinois enrollment
- 101 clinicians in this Medicare group
Berwyn, IL 60402
- Reassigned Medicare billing, Illinois enrollment
- 86 clinicians in this Medicare group
Berwyn, IL 60402
- Reassigned Medicare billing, Illinois enrollment
- 211 clinicians in this Medicare group
Oak Park, IL 60302
- Reassigned Medicare billing, Illinois enrollment
- 67 clinicians in this Medicare group
Oak Lawn, IL 60453
- Reassigned Medicare billing, Illinois enrollment
- 93 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Loyola Gottlieb Memorial Hospital
Acute Care Hospitals · Melrose Park, ILMacneal Hospital
Acute Care Hospitals · Berwyn, ILOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
AURORA, IL 60504
AURORA, IL 60504
AURORA, IL 60504
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is John Bertolozzi's NPI number?
The NPI number for John Bertolozzi is 1407869779. It was assigned to this individual provider in the NPPES registry on August 15, 2006.
Where is John Bertolozzi located?
John Bertolozzi practices at 2000 Ogden Ave, Aurora, IL 60504. The listed phone number is (630) 978-4860.
What is John Bertolozzi's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is John Bertolozzi enrolled in Medicare?
Yes. John Bertolozzi is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for John Bertolozzi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Bertolozzi reassigns Medicare benefits to 6 organizations: Guardian Anesthesia Associates, S.C (Aurora, IL), Anesthesia Associates, Ltd (Aurora, IL), Gottlieb Community Health Services Corporation (Berwyn, IL), Loyola Medical Group LLC (Berwyn, IL), Encore Anesthesia Group LLC (Oak Park, IL) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for John Bertolozzi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Bertolozzi accept?
Health plans from Oscar Health list John Bertolozzi as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is John Bertolozzi affiliated with any hospitals?
According to CMS data, John Bertolozzi is affiliated with Loyola Gottlieb Memorial Hospital and Macneal Hospital.
When was this NPI record last updated?
The NPPES record for John Bertolozzi was last updated on March 10, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. John L. Bertolozzi, D.O. · NPI 1407869779
Anesthesiology physician in Aurora, Illinois. Individual provider, active in the CMS NPPES registry since August 15, 2006.
## Identity
- **NPI:** 1407869779 (Entity type: Individual)
- **Enumerated:** August 15, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 036095646 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 2000 OGDEN AVE, Aurora, IL 60504-7222
- **Phone:** (630) 978-4860
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Guardian Anesthesia Associates, S.C (NPI 1326097221, Aurora, IL); Anesthesia Associates, Ltd (NPI 1952308223, Aurora, IL); Gottlieb Community Health Services Corporation (NPI 1013415603, Berwyn, IL); Loyola Medical Group LLC (NPI 1376041954, Berwyn, IL); Encore Anesthesia Group LLC (NPI 1558987883, Oak Park, IL); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1993
## Record status
- **NPPES last updated:** March 10, 2023
- **Other identifiers:** Medicaid 036095646 (IL)
---
Source: [NPI Profile](https://npiprofile.com/npi/1407869779) · Data from the CMS NPPES public registry.