Primary practice
Memorial Solid Tumor Group
New York, New York
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Dr. Ryan practices at Memorial Solid Tumor Group in New York, New York.
Dr. Ryan's NPI, 1083672000, was assigned on May 1, 2006. Dr. Ryan graduated from University of Wisconsin School of Medicine and Public Health in 1996. Dr. Ryan holds Minnesota license 64731.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ryan's primary practice is Memorial Solid Tumor Group, at 633 3rd Ave, New York, NY 10017 in New York County. The practice phone is (646) 227-3813.
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ryan's primary practice is Memorial Solid Tumor Group in New York, New York. Dr. Ryan is also affiliated with Memorial Sloan Kettering Cancer Center. The medical group on file is Memorial Sloan Kettering Cancer Center. Dmand AI also links Dr. Ryan to 3 more group practices and clinics and 2 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ryan practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Memorial Solid Tumor Group | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Medical oncology is Dr. Ryan's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dmand AI has Dr. Ryan's licenses on file in 2 states: Minnesota and California.
Counts of medical oncologists 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
CMS data shows 97 Medicare services from Dr. Ryan across 3 procedure codes in 2024, all of them office visits, for 82 Medicare patients. Medicare paid $9,519 for them. Every service was in an office.
Medians across 421 medical oncologists in New York with Dmand AI profiles that report each measure.
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
CMS counts 82 Medicare patients who saw Dr. Ryan in 2024. The largest group is 75 to 84, with 42 patients. 75% of them have cancer, and 75% have high blood pressure. Their average risk score is 2.20, 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. Ryan's median patient age at 76, with 1% women.
CMS leaves out age groups with fewer than 11 patients.
Share of Medicare patients with each condition. A patient can have several.
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Median age 76
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
In 2024, Dr. Ryan wrote 64 Medicare Part D claims for 34 patients. 45% of them were for generic drugs. CMS names the drug for 26 of them, across 2 drugs with 11 or more claims each, at $175,640 in total drug cost. In 2023, CMS named 192 claims across 6 drugs.
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drugs named by CMS: 2 in 2024, 6 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Ryan for performance year 2024, reported as part of a group. Dr. Ryan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ryan as offering telehealth.
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
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Dmand AI links Dr. Ryan to 2 clinical trials. 1 is still active or recruiting. Conditions studied include Prostatic Neoplasms and Prostatic Diseases. Open Payments lists research payments to Dr. Ryan that name 2 trials.
Conditions in Dr. Ryan's trials
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
CMS Open Payments shows 185 general payments to Dr. Ryan from 26 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 60% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $55,795. It also lists 3 research payments totaling $41,006 from 2016 to 2021, naming 2 clinical trials.
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ryan graduated from University of Wisconsin School of Medicine and Public Health in 1996.
Source: Dmand AI Professional 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 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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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
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Dr. Charles J. Ryan's NPI number is 1083672000. It was assigned on May 1, 2006, and it is active in the NPI Registry.
Dr. Charles J. Ryan is a medical oncologist in New York, New York. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Dr. Ryan practices at 633 3rd Ave, New York, NY 10017. Dr. Ryan's primary practice is Memorial Solid Tumor Group in New York, New York. Dmand AI also links Dr. Ryan to 3 group practices and clinics and 2 medical groups.
The practice phone on file for Dr. Ryan is (646) 227-3813.
Dr. Ryan holds Minnesota license 64731, one of the licenses on file in 2 states.
Dmand AI has state licenses on file for Dr. Ryan in Minnesota and California.
Dr. Ryan is affiliated with Memorial Sloan Kettering Cancer Center.
Dr. Ryan is linked to Memorial Sloan Kettering Cancer Center. Dmand AI links Dr. Ryan to 2 more medical groups.
Yes. CMS data shows Dr. Ryan billed Medicare for 97 services in 2024, and Dr. Ryan accepts Medicare assignment.
Yes. The CMS Doctors and Clinicians file lists Dr. Ryan as offering telehealth services.
Dr. Ryan's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
CMS counts 82 Medicare patients who saw Dr. Ryan in 2024, with an average age of 77.
In 2024, Dr. Ryan's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99215) and office visit, established patient (99213).
Dr. Ryan graduated from University of Wisconsin School of Medicine and Public Health in 1996.
In 2024 Medicare Part D data, Dr. Ryan's most prescribed drugs by claims were Nubeqa and Prednisone.
CMS Open Payments shows $239,020 in general payments to Dr. Ryan from 26 companies from 2016 to 2025. The largest total came from Bayer HealthCare Pharmaceuticals Inc.
Dr. Ryan graduated from medical school in 1996, 30 years ago.
Dr. Ryan has worked on 2 clinical trials.
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