Dr. John L. Bertolozzi, DO
- Medicare services, 2024
- 119
- Medicare patients, 2024
- 222
- Hospital affiliations
- 3
- Industry payments
- $76
- Medical groups
- 6
- Practice address
- 3249 South Oak Park Avenue, Berwyn, IL 60402
- Practice phone
- Call (708) 783-9100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Bertolozzi's professional email, personal email and mobile number
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Dr. John L. Bertolozzi is an anesthesiologist in Berwyn, Illinois
Dr. Bertolozzi practices at MacNeal Hospital in Berwyn, Illinois, part of Trinity Health.
Dr. Bertolozzi's NPI, 1407869779, was assigned on August 15, 2006. Dr. Bertolozzi holds Illinois license 036095646.
- NPI
- 1407869779NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1951426543
- NPI enumeration date
- August 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (708) 783-9100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John L. Bertolozzi practices at MacNeal Hospital in Berwyn, Illinois
Dr. Bertolozzi's primary practice is MacNeal Hospital, at 3249 South Oak Park Avenue, Berwyn, IL 60402 in Cook County. The practice phone is (708) 783-9100.
- MacNeal Hospital3249 South Oak Park Avenue, Berwyn, IL 60402 · Cook CountyPhone(708) 783-9100
Source: Dmand AI Affiliation Data
Dr. John L. Bertolozzi is affiliated with 3 sites of care and 6 medical groups
Dr. Bertolozzi's primary practice is MacNeal Hospital in Berwyn, Illinois, part of Trinity Health. Dr. Bertolozzi is also affiliated with Rush Copley Medical Center. The medical group on file is Loyola Medical Group. Dmand AI also links Dr. Bertolozzi to 1 more hospital and 5 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John L. Bertolozzi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bertolozzi practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| MacNeal Hospital | Available with a free account |
| +2 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Trinity Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John L. Bertolozzi is one of 1,887 anesthesiologists in Illinois
Anesthesiology is Dr. Bertolozzi's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Bertolozzi is licensed in Illinois.
Specialties and state licenses
- Anesthesiology, IllinoisPrimary
Anesthesiologists near Dr. Bertolozzi
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. John L. Bertolozzi billed Medicare for 119 services in 2024
CMS data shows 119 Medicare services from Dr. Bertolozzi across 4 procedure codes in 2024, for 222 Medicare patients. Medicare paid $8,303 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Bertolozzi's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 1312024: 1199%
Dr. Bertolozzi compared with the Illinois median for anesthesiologists, 2024
- Dr. Bertolozzi
- Illinois median
- Medicare services
- 119vs 9131% above
- Medicare patients
- 222vs 15741% above
Medians across 1,742 anesthesiologists in Illinois with Dmand AI profiles that report each measure.
Dr. Bertolozzi's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Bertolozzi?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Bertolozzi and other anesthesiologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John L. Bertolozzi treated 222 Medicare patients in 2024, average age 73
CMS counts 222 Medicare patients who saw Dr. Bertolozzi in 2024. The largest group is 65 to 74, with 90 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 26% are also on Medicaid. Their average risk score is 1.41, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Bertolozzi's median patient age at 69, with 54% women.
Dr. Bertolozzi's Medicare patients by age, 2024
Dr. Bertolozzi's Medicare patients by sex, 2024
- Women12858%
- Men9442%
Chronic conditions among Dr. Bertolozzi's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Diabetes44%
- Ischemic heart disease30%
- Chronic kidney disease28%
- Mood disorders27%
- Depression24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bertolozzi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. John L. Bertolozzi takes part in Medicare
Dr. Bertolozzi accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John L. Bertolozzi received $76 in industry payments from 2023 to 2025
CMS Open Payments shows 3 general payments to Dr. Bertolozzi from 2 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $58.
General payments to Dr. Bertolozzi by program year, 2023 to 2025
Companies that paid Dr. Bertolozzi the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John L. Bertolozzi's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John L. Bertolozzi
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. John L. Bertolozzi's NPI number?
Dr. John L. Bertolozzi's NPI number is 1407869779. It was assigned on August 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John L. Bertolozzi?
Dr. John L. Bertolozzi is an anesthesiologist in Berwyn, Illinois. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. John L. Bertolozzi practice?
Dr. Bertolozzi practices at 3249 South Oak Park Avenue, Berwyn, IL 60402. Dr. Bertolozzi's primary practice is MacNeal Hospital in Berwyn, Illinois, part of Trinity Health. Dmand AI also links Dr. Bertolozzi to 1 hospital and 5 medical groups.
What is Dr. John L. Bertolozzi's office phone number?
The practice phone on file for Dr. Bertolozzi is (708) 783-9100.
What is Dr. John L. Bertolozzi's medical license number?
Dr. Bertolozzi holds Illinois license 036095646.
Which hospitals is Dr. John L. Bertolozzi affiliated with?
Dr. Bertolozzi practices at MacNeal Hospital in Berwyn, Illinois. Dr. Bertolozzi is also affiliated with Rush Copley Medical Center. Dmand AI links Dr. Bertolozzi to 1 more hospital.
What medical group is Dr. John L. Bertolozzi part of?
Dr. Bertolozzi is linked to Loyola Medical Group. Dmand AI links Dr. Bertolozzi to 5 more medical groups.
Does Dr. John L. Bertolozzi accept Medicare?
Yes. CMS data shows Dr. Bertolozzi billed Medicare for 119 services in 2024, and Dr. Bertolozzi accepts Medicare assignment.
How many Medicare patients does Dr. John L. Bertolozzi see?
CMS counts 222 Medicare patients who saw Dr. Bertolozzi in 2024, with an average age of 73.
What services does Dr. John L. Bertolozzi bill to Medicare?
In 2024, Dr. Bertolozzi's most billed Medicare services were anesthesia (00811), anesthesia (00142) and anesthesia (00731).
Has Dr. John L. Bertolozzi received payments from drug or device companies?
CMS Open Payments shows $76 in general payments to Dr. Bertolozzi from 2 companies from 2023 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. John L. Bertolozzi been practicing?
Dr. Bertolozzi graduated from medical school in 1993, 33 years ago.
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