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Dr. Alexander Cates Kagen, MD
NPI1518174978PAC ID5890863690
- Medicare services, 2024
- 5,948
- Medicare patients, 2024
- 497
- Publications
- 21
- Clinical trials
- 1
- Hospital affiliations
- 3
- Practice address
- 425 W 59th St, New York, NY 10019
- Practice phone
- Call (212) 523-8417
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Madison Surgical Obs, LLC
New York, New York
Find Dr. Kagen'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. Alexander Cates Kagen is a diagnostic radiologist in New York, New York
Dr. Kagen practices at Madison Surgical Obs, LLC in New York, New York.
Dr. Kagen's NPI, 1518174978, was assigned on May 16, 2007. Dr. Kagen graduated from State University of New York Downstate Medical Center in 2003. Dr. Kagen holds New York license 240310.
NPI and contact details
- NPI
- 1518174978NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890863690
- NPI enumeration date
- May 16, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (212) 523-8417
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Alexander Cates Kagen practices at Madison Surgical Obs, LLC in New York, New York
Dr. Kagen's primary practice is Madison Surgical Obs, LLC, at 425 W 59th St, New York, NY 10019 in New York County. The practice phone is (212) 523-8417.
- Madison Surgical Obs, LLC425 W 59th St, New York, NY 10019 · New York CountyPhone(212) 523-8417
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Alexander Cates Kagen is affiliated with 4 sites of care and 3 medical groups
Dr. Kagen's primary practice is Madison Surgical Obs, LLC in New York, New York. Dr. Kagen is also affiliated with The Mount Sinai Hospital. The medical group on file is Mount Sinai Nuclear Medicine Associates. Dmand AI also links Dr. Kagen to 2 more hospitals and 2 medical groups, each named with a free account.
Madison Surgical Obs, LLCPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Alexander Cates Kagen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kagen practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Madison Surgical Obs, LLC | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Alexander Cates Kagen is one of 2,697 diagnostic radiologists in New York
Diagnostic radiology is Dr. Kagen's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dmand AI has Dr. Kagen's licenses on file in 2 states: New York and Maryland.
Specialties and state licenses
- Diagnostic radiology, New YorkPrimary
- Maryland license
Diagnostic radiologists near Dr. Kagen
Counts of diagnostic radiologists 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. Alexander Cates Kagen billed Medicare for 5,948 services in 2024
CMS data shows 5,948 Medicare services from Dr. Kagen across 9 procedure codes in 2024, for 497 Medicare patients. Medicare paid $57,181 for them.
Medicare services, 20245,948
Medicare patients497
Paid by Medicare$57,181
Procedure codes9
Dr. Kagen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 5,0762024: 5,4998%
- Imaging
- 2023: 4392024: 4492%
Where Dr. Kagen's Medicare services took place, 2024
- In an office5,70196%
- In a facility2474%
Dr. Kagen compared with the New York median for diagnostic radiologists, 2024
- Dr. Kagen
- New York median
- Medicare services
- 5,948vs 2,4142.5 times
- Medicare patients
- 497vs 1,15957% below
Medians across 2,610 diagnostic radiologists in New York with Dmand AI profiles that report each measure.
Dr. Kagen'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. Kagen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kagen and other diagnostic radiologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alexander Cates Kagen treated 497 Medicare patients in 2024, average age 75
CMS counts 497 Medicare patients who saw Dr. Kagen in 2024. The largest group is 65 to 74, with 216 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 32% are also on Medicaid. Their average risk score is 1.65, 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. Kagen's median patient age at 60, with 55% women.
Medicare patients, 2024497
Average age75
Average risk score1.65
Also on Medicaid32%
Dr. Kagen's Medicare patients by age, 2024
Dr. Kagen's Medicare patients by sex, 2024
- Women23247%
- Men26553%
Chronic conditions among Dr. Kagen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis45%
- Diabetes38%
- Cancer35%
- Ischemic heart disease34%
- Chronic kidney disease28%
- Mood disorders26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kagen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women55%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Alexander Cates Kagen takes part in Medicare
Dr. Kagen 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. Alexander Cates Kagen has 21 publications on record
Dmand AI links 21 papers to Dr. Kagen, published from 2013 to 2023. 2013 was the busiest year, with 4. The most frequent topics are Magnetic Resonance Imaging, Contrast Media and Predictive Value of Tests. Dr. Kagen has published most often in J Am Coll Radiol. Dr. Kagen's most frequent co-authors are Florence Xini Doo, MD, Peter William Henderson, MD and Taylor Jordan Ibelli, MD.
Papers21
Years published2013 to 2023
Dr. Kagen's papers by year, 2013 to 2023
Topics Dr. Kagen writes about most
- Magnetic Resonance Imaging
- Contrast Media
- Predictive Value of Tests
- Tomography, X-Ray Computed
Dr. Kagen's most frequent co-authors
- Florence Xini Doo, MD3 shared papers
- Peter William Henderson, MD2 shared papers
- Taylor Jordan Ibelli, MD2 shared papers
Recent publications by Dr. Kagen
Abdominal MusclesAbdominal WallAbdominal Wound Closure Techniques
J Am Coll Radiol
Artificial IntelligenceDeep LearningEthnicity
Plast Reconstr Surg Glob Open
See who Dr. Kagen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kagen works with, so you can find a warm path to the right diagnostic radiologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Alexander Cates Kagen has worked on 1 clinical trial
Dmand AI links Dr. Kagen to 1 clinical trial. Conditions studied include Carcinoma, Renal Cell and Kidney Neoplasms.
Conditions in Dr. Kagen's trials
- Carcinoma, Renal Cell
- Kidney Neoplasms
Investigators on the most trials with Dr. Kagen
Recent clinical trials with Dr. Kagen
To Evaluate Stereotactic Body Radiotherapy for Treatment of Primary Renal Cell Carcinoma Tumors (opens in a new tab)
TerminatedPhase 1
Carcinoma, Renal CellKidney NeoplasmsStereotactic Body Radiotherapy (SBRT)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Alexander Cates Kagen received $181,282 in industry payments from 2016 to 2025
CMS Open Payments shows 203 general payments to Dr. Kagen from 7 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 53% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $150,463.
General payments to Dr. Kagen by program year, 2016 to 2025
General payments to Dr. Kagen by kind, 2016 to 2025
$181.3Kin total
- Speaker and faculty fees$95,43153%
- Consulting fees$47,26326%
- Travel and lodging$32,98018%
- Food and beverage$5,6083%
Companies that paid Dr. Kagen the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Alexander Cates Kagen graduated from State University of New York Downstate Medical Center
Dr. Kagen graduated from State University of New York Downstate Medical Center in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Alexander Cates Kagen'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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. Alexander Cates Kagen
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. Alexander Cates Kagen's NPI number?
Dr. Alexander Cates Kagen's NPI number is 1518174978. It was assigned on May 16, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Alexander Cates Kagen?
Dr. Alexander Cates Kagen is a diagnostic radiologist in New York, New York. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Alexander Cates Kagen practice?
Dr. Kagen practices at 425 W 59th St, New York, NY 10019. Dr. Kagen's primary practice is Madison Surgical Obs, LLC in New York, New York. Dmand AI also links Dr. Kagen to 2 hospitals and 2 medical groups.
What is Dr. Alexander Cates Kagen's office phone number?
The practice phone on file for Dr. Kagen is (212) 523-8417.
What is Dr. Alexander Cates Kagen's medical license number?
Dr. Kagen holds New York license 240310, one of the licenses on file in 2 states.
Which states has Dr. Alexander Cates Kagen been licensed in?
Dmand AI has state licenses on file for Dr. Kagen in New York and Maryland.
Which hospitals is Dr. Alexander Cates Kagen affiliated with?
Dr. Kagen is affiliated with The Mount Sinai Hospital. Dmand AI links Dr. Kagen to 2 more hospitals.
What medical group is Dr. Alexander Cates Kagen part of?
Dr. Kagen is linked to Mount Sinai Nuclear Medicine Associates. Dmand AI links Dr. Kagen to 2 more medical groups.
Does Dr. Alexander Cates Kagen accept Medicare?
Yes. CMS data shows Dr. Kagen billed Medicare for 5,948 services in 2024, and Dr. Kagen accepts Medicare assignment.
How many Medicare patients does Dr. Alexander Cates Kagen see?
CMS counts 497 Medicare patients who saw Dr. Kagen in 2024, with an average age of 75.
Show 6 more questionsShow fewer questions
What services does Dr. Alexander Cates Kagen bill to Medicare?
In 2024, Dr. Kagen's most billed Medicare services were medical supplies or transport (A9585), diagnostic imaging (74183) and diagnostic imaging (72197).
Where did Dr. Alexander Cates Kagen go to medical school?
Dr. Kagen graduated from State University of New York Downstate Medical Center in 2003.
Has Dr. Alexander Cates Kagen received payments from drug or device companies?
CMS Open Payments shows $181,282 in general payments to Dr. Kagen from 7 companies from 2016 to 2025. The largest total came from Bayer HealthCare Pharmaceuticals Inc.
How long has Dr. Alexander Cates Kagen been practicing?
Dr. Kagen graduated from medical school in 2003, 23 years ago.
Does Dr. Alexander Cates Kagen do research?
Dmand AI links 21 publications to Dr. Kagen, published from 2013 to 2023. Dr. Kagen has worked on 1 clinical trial.
Who does Dr. Alexander Cates Kagen publish with?
Dr. Kagen's most frequent co-authors are Florence Xini Doo, MD (3 shared papers), Peter William Henderson, MD (2 shared papers) and Taylor Jordan Ibelli, MD (2 shared papers).
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