Dr. John Gabriel Hagen, MD
- Medicare services, 2024
- 115
- Medicare patients, 2024
- 270
- MIPS score, 2024
- 78
- Hospital affiliations
- 1
- Industry payments
- $47
- Practice address
- 1275 York Avenue, New York, NY 10065
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hagen'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.
Dr. John Gabriel Hagen is an anesthesiologist in New York, New York
Dr. Hagen practices at Memorial Sloan Kettering Cancer Center in New York, New York, part of Memorial Sloan Kettering Cancer Center.
Dr. Hagen's NPI, 1649430026, was assigned on June 10, 2008. Dr. Hagen graduated from State University of New York Downstate Medical Center in 2007. Dr. Hagen holds New York license P73032.
- NPI
- 1649430026NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759546492
- NPI enumeration date
- June 10, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Gabriel Hagen practices at Memorial Sloan Kettering Cancer Center in New York, New York
Dr. Hagen's primary practice is Memorial Sloan Kettering Cancer Center, at 1275 York Avenue, New York, NY 10065.
- Memorial Sloan Kettering Cancer Center1275 York Avenue, New York, NY 10065
Source: Dmand AI Affiliation Data
Dr. John Gabriel Hagen is affiliated with 1 site of care and 2 medical groups
Dr. Hagen's primary practice is Memorial Sloan Kettering Cancer Center in New York, New York, part of Memorial Sloan Kettering Cancer Center. The medical group on file is Memorial Sloan Kettering Cancer Center. Dmand AI also links Dr. Hagen to 1 more medical group, 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 Gabriel Hagen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hagen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Memorial Sloan Kettering Cancer Center | Available with a free account |
| +1 medical group | 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 Memorial Sloan Kettering Cancer Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John Gabriel Hagen is one of 3,858 anesthesiologists in New York
Anesthesiology is Dr. Hagen's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dmand AI has Dr. Hagen's licenses on file in 2 states: New York and Michigan.
Specialties and state licenses
- Anesthesiology, New YorkPrimary
- Michigan license
Anesthesiologists near Dr. Hagen
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 Gabriel Hagen billed Medicare for 115 services in 2024
CMS data shows 115 Medicare services from Dr. Hagen across 4 procedure codes in 2024, for 270 Medicare patients. Medicare paid $12,080 for them.
Dr. Hagen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 862024: 11534%
Where Dr. Hagen's Medicare services took place, 2024
- In an office1715%
- In a facility9885%
Dr. Hagen compared with the New York median for anesthesiologists, 2024
- Dr. Hagen
- New York median
- Medicare services
- 115vs 7651% above
- Medicare patients
- 270vs 1322.0 times
Medians across 3,723 anesthesiologists in New York with Dmand AI profiles that report each measure.
Dr. Hagen'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. Hagen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hagen and other anesthesiologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Gabriel Hagen treated 270 Medicare patients in 2024, average age 73
CMS counts 270 Medicare patients who saw Dr. Hagen in 2024. The largest group is 65 to 74, with 131 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 13% are also on Medicaid. Their average risk score is 2.44, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Hagen's median patient age at 50, with 40% women.
Dr. Hagen's Medicare patients by age, 2024
Dr. Hagen's Medicare patients by sex, 2024
- Women13450%
- Men13650%
Chronic conditions among Dr. Hagen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Cancer57%
- Arthritis52%
- Ischemic heart disease35%
- Diabetes34%
- Anxiety33%
- Chronic kidney disease30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Hagen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 50
Patient panel by sex, all payers
- Women40%
- Men57%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Gabriel Hagen scored 78 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 78 out of 100 for Dr. Hagen for performance year 2024, reported as part of a group. Dr. Hagen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Hagen's MIPS scores, performance year 2024
- 78of 100Final score
- 80.6of 100Quality
- 40of 100Improvement Activities
- 50of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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.
Dr. John Gabriel Hagen received $47 in industry payments in 2023
CMS Open Payments shows 2 general payments to Dr. Hagen from 2 drug and device companies in 2023. Food and beverage make up the largest share, 100% of the total. Eagle Pharmaceuticals, Inc. paid the most, $28.
Companies that paid Dr. Hagen the most, 2023 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Gabriel Hagen graduated from State University of New York Downstate Medical Center
Dr. Hagen graduated from State University of New York Downstate Medical Center in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Gabriel Hagen'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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Gabriel Hagen
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 Gabriel Hagen's NPI number?
Dr. John Gabriel Hagen's NPI number is 1649430026. It was assigned on June 10, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. John Gabriel Hagen?
Dr. John Gabriel Hagen is an anesthesiologist in New York, New York. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. John Gabriel Hagen practice?
Dr. Hagen practices at 1275 York Avenue, New York, NY 10065. Dr. Hagen's primary practice is Memorial Sloan Kettering Cancer Center in New York, New York, part of Memorial Sloan Kettering Cancer Center. Dmand AI also links Dr. Hagen to 1 medical group.
What is Dr. John Gabriel Hagen's medical license number?
Dr. Hagen holds New York license P73032, one of the licenses on file in 2 states.
Which states has Dr. John Gabriel Hagen been licensed in?
Dmand AI has state licenses on file for Dr. Hagen in New York and Michigan.
Which hospitals is Dr. John Gabriel Hagen affiliated with?
Dr. Hagen practices at Memorial Sloan Kettering Cancer Center in New York, New York.
What medical group is Dr. John Gabriel Hagen part of?
Dr. Hagen is linked to Memorial Sloan Kettering Cancer Center. Dmand AI links Dr. Hagen to 1 more medical group.
Does Dr. John Gabriel Hagen accept Medicare?
Yes. CMS data shows Dr. Hagen billed Medicare for 115 services in 2024, and Dr. Hagen accepts Medicare assignment.
What is Dr. John Gabriel Hagen's MIPS score?
Dr. Hagen's MIPS final score for performance year 2024 is 78 out of 100, reported as part of a group.
How many Medicare patients does Dr. John Gabriel Hagen see?
CMS counts 270 Medicare patients who saw Dr. Hagen in 2024, with an average age of 73.
Show 4 more questionsShow fewer questions
What services does Dr. John Gabriel Hagen bill to Medicare?
In 2024, Dr. Hagen's most billed Medicare services were anesthesia (00731), anesthesia (01922) and anesthesia (00902).
Where did Dr. John Gabriel Hagen go to medical school?
Dr. Hagen graduated from State University of New York Downstate Medical Center in 2007.
Has Dr. John Gabriel Hagen received payments from drug or device companies?
CMS Open Payments shows $47 in general payments to Dr. Hagen from 2 companies from 2023 to 2023. The largest total came from Eagle Pharmaceuticals, Inc.
How long has Dr. John Gabriel Hagen been practicing?
Dr. Hagen graduated from medical school in 2007, 19 years ago.
Selling to anesthesiology practices?
See anesthesiologists in New York 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