John Patrick Hartnett
- Medicare services, 2024
- 183
- Medicare patients, 2024
- 296
- Hospital affiliations
- 4
- Industry payments
- $523
- Medical group
- 1
- Practice address
- 120 North Oak St, Hinsdale, IL 60521
- Practice phone
- Call (630) 856-9000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find John Hartnett's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
John Patrick Hartnett is an anesthesiologist in Hinsdale, Illinois
John Hartnett practices at UChicago Medicine AdventHealth Hinsdale in Hinsdale, Illinois, part of The University of Chicago.
John Hartnett's NPI, 1285137109, was assigned on March 16, 2018. John Hartnett holds Illinois license 125.071911.
- NPI
- 1285137109NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7517203466
- NPI enumeration date
- March 16, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (630) 856-9000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
John Patrick Hartnett practices at UChicago Medicine AdventHealth Hinsdale in Hinsdale, Illinois
John Hartnett's primary practice is UChicago Medicine AdventHealth Hinsdale, at 120 North Oak St, Hinsdale, IL 60521 in Du Page County. The practice phone is (630) 856-9000.
- UChicago Medicine AdventHealth Hinsdale120 North Oak St, Hinsdale, IL 60521 · Du Page CountyPhone(630) 856-9000
Source: Dmand AI Affiliation Data
John Patrick Hartnett is affiliated with 4 sites of care and 1 medical group
John Hartnett's primary practice is UChicago Medicine AdventHealth Hinsdale in Hinsdale, Illinois, part of The University of Chicago. John Hartnett is also affiliated with Northwestern Memorial Hospital. The medical group on file is Northstar Anesthesia. Dmand AI also links John Hartnett to 2 more hospitals, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at John Patrick Hartnett's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Hartnett practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UChicago Medicine AdventHealth Hinsdale | Available with a free account |
| +3 more affiliated sites | 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 The University of Chicago and 6.2K+ hospitals, with verified contacts in the same login.
John Patrick Hartnett is one of 1,887 anesthesiologists in Illinois
Anesthesiology is John Hartnett's primary specialty in the NPI Registry, under taxonomy code 207L00000X. John Hartnett is licensed in Illinois.
Specialties and state licenses
- Anesthesiology, IllinoisPrimary
Anesthesiologists near John Hartnett
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
John Patrick Hartnett billed Medicare for 183 services in 2024
CMS data shows 183 Medicare services from John Hartnett across 8 procedure codes in 2024, for 296 Medicare patients. Medicare paid $15,210 for them. Every service was in a facility, such as a hospital, rather than an office.
John Hartnett's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 922024: 15973%
- Surgery
- 2023: 02024: 24
John Hartnett compared with the Illinois median for anesthesiologists, 2024
- John Hartnett
- Illinois median
- Medicare services
- 183vs 912.0 times
- Medicare patients
- 296vs 15789% above
Medians across 1,742 anesthesiologists in Illinois with Dmand AI profiles that report each measure.
John Hartnett'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 John Hartnett?
Medicare shows one payer. Book a meeting to get commercial claims data for John Hartnett and other anesthesiologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
John Patrick Hartnett treated 296 Medicare patients in 2024, average age 74
CMS counts 296 Medicare patients who saw John Hartnett in 2024. The largest group is 65 to 74, with 124 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 40% are also on Medicaid. Their average risk score is 1.85, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts John Hartnett's median patient age at 70, with 58% women.
John Hartnett's Medicare patients by age, 2024
John Hartnett's Medicare patients by sex, 2024
- Women15452%
- Men14248%
Chronic conditions among John Hartnett's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis61%
- Diabetes47%
- Heart failure42%
- Ischemic heart disease40%
- Chronic kidney disease36%
- Atrial fibrillation34%
Share of Medicare patients with each condition. A patient can have several.
John Hartnett's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How John Patrick Hartnett takes part in Medicare
John Hartnett 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
John Patrick Hartnett received $523 in industry payments from 2024 to 2025
CMS Open Payments shows 17 general payments to John Hartnett from 5 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Pacira Pharmaceuticals Incorporated paid the most, $173.
General payments to John Hartnett by program year, 2024 to 2025
Companies that paid John Hartnett the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for John Patrick Hartnett'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 John Patrick Hartnett
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John Patrick Hartnett's NPI number?
John Patrick Hartnett's NPI number is 1285137109. It was assigned on March 16, 2018, and it is active in the NPI Registry.
What does John Patrick Hartnett specialize in?
John Patrick Hartnett is an anesthesiologist in Hinsdale, Illinois. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does John Patrick Hartnett practice?
John Hartnett practices at 120 North Oak St, Hinsdale, IL 60521. John Hartnett's primary practice is UChicago Medicine AdventHealth Hinsdale in Hinsdale, Illinois, part of The University of Chicago. Dmand AI also links John Hartnett to 2 hospitals.
What is John Patrick Hartnett's office phone number?
The practice phone on file for John Hartnett is (630) 856-9000.
What is John Patrick Hartnett's medical license number?
John Hartnett holds Illinois license 125.071911.
Which hospitals is John Patrick Hartnett affiliated with?
John Hartnett practices at UChicago Medicine AdventHealth Hinsdale in Hinsdale, Illinois. John Hartnett is also affiliated with Northwestern Memorial Hospital. Dmand AI links John Hartnett to 2 more hospitals.
What medical group is John Patrick Hartnett part of?
John Hartnett is linked to Northstar Anesthesia.
Does John Patrick Hartnett accept Medicare?
Yes. CMS data shows John Hartnett billed Medicare for 183 services in 2024, and John Hartnett accepts Medicare assignment.
How many Medicare patients does John Patrick Hartnett see?
CMS counts 296 Medicare patients who saw John Hartnett in 2024, with an average age of 74.
What services does John Patrick Hartnett bill to Medicare?
In 2024, John Hartnett's most billed Medicare services were anesthesia (00731), anesthesia (00811) and anesthesia (00812).
Has John Patrick Hartnett received payments from drug or device companies?
CMS Open Payments shows $523 in general payments to John Hartnett from 5 companies from 2024 to 2025. The largest total came from Pacira Pharmaceuticals Incorporated.
How long has John Patrick Hartnett been practicing?
John Hartnett graduated from medical school in 2018, 8 years ago.
Selling to anesthesiology practices?
See anesthesiologists in Illinois by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card