J Immunother Cancer
Dr. Mario Sznol, MD
- Medicare services, 2024
- 461
- Medicare patients, 2024
- 123
- Part D claims, 2024
- 333
- Publications
- 131
- Clinical trials
- 9
- Practice address
- 20 York Street, New Haven, CT 06510
- Practice phone
- Call (203) 688-5900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Yale New Haven Psychiatric Hospital (York St)
Psychiatric Inpatient Facility · New Haven, Connecticut
Find Dr. Sznol'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. Mario Sznol is a medical oncologist in New Haven, Connecticut
Dr. Sznol practices at Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut.
Dr. Sznol's NPI, 1073501748, was assigned on October 7, 2005. Dr. Sznol graduated from Baylor College Of Medicine in 1982. Dr. Sznol holds Connecticut license 0358548.
- NPI
- 1073501748NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628194784
- NPI enumeration date
- October 7, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (203) 688-5900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mario Sznol practices at Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut
Dr. Sznol's primary practice is Yale New Haven Psychiatric Hospital (York St), at 20 York Street, New Haven, CT 06510. The practice phone is (203) 688-5900.
- Yale New Haven Psychiatric Hospital (York St)20 York Street, New Haven, CT 06510Phone(203) 688-5900
Source: Dmand AI Affiliation Data
Dr. Mario Sznol is affiliated with 7 sites of care and 2 medical groups
Dr. Sznol's primary practice is Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut. Dr. Sznol is also affiliated with Yale New Haven Hospital. The medical group on file is Yale Health. Dmand AI also links Dr. Sznol to 4 more hospitals, 1 group practice or clinic and 1 medical group, 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. Mario Sznol's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sznol practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Yale New Haven Psychiatric Hospital (York St) | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mario Sznol is one of 80 medical oncologists in Connecticut
Medical oncology is Dr. Sznol's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Sznol is licensed in Connecticut.
Specialties and state licenses
- Medical oncology, ConnecticutPrimary
Medical oncologists near Dr. Sznol
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
Dr. Mario Sznol billed Medicare for 461 services in 2024
CMS data shows 461 Medicare services from Dr. Sznol across 3 procedure codes in 2024, all of them office visits, for 123 Medicare patients. Medicare paid $29,736 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Sznol's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4712024: 4612%
Dr. Sznol compared with the Connecticut median for medical oncologists, 2024
- Dr. Sznol
- Connecticut median
- Medicare services
- 461vs 25283% above
- Medicare patients
- 123vs 9628% above
- Part D claims
- 243vs 19624% above
Medians across 76 medical oncologists in Connecticut with Dmand AI profiles that report each measure.
Dr. Sznol'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mario Sznol treated 123 Medicare patients in 2024, average age 75
CMS counts 123 Medicare patients who saw Dr. Sznol in 2024. The largest group is 65 to 74, with 53 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 11% are also on Medicaid. Their average risk score is 2.90, 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. Sznol's median patient age at 74, with 30% women.
Dr. Sznol's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Sznol's Medicare patients by sex, 2024
- Women3730%
- Men8670%
Chronic conditions among Dr. Sznol's Medicare patients, 2024
- High blood pressure75%
- High cholesterol73%
- Arthritis50%
- Cancer45%
- Ischemic heart disease31%
- Chronic kidney disease29%
- Anxiety28%
- Mood disorders26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sznol's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women30%
- Men68%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mario Sznol wrote 333 Medicare Part D claims in 2024
In 2024, Dr. Sznol wrote 333 Medicare Part D claims for 45 patients. 48% of them were for generic drugs. CMS names the drug for 243 of them, across 11 drugs with 11 or more claims each, at $2,730,165 in total drug cost. In 2023, CMS named 185 claims across 6 drugs.
Dr. Sznol's Part D claims by kind of drug, 2024
- Generic161 claims48%
- Brand-name172 claims52%
Dr. Sznol's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1852024: 24331%
Drugs named by CMS: 11 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
Dr. Mario Sznol scored 87 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 87 out of 100 for Dr. Sznol for performance year 2024, reported as part of a group. Dr. Sznol accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Sznol as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Sznol's MIPS scores, performance year 2024
- 87of 100Final score
- 77.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 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
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Dr. Mario Sznol has 131 publications on record
Dmand AI links 131 papers to Dr. Sznol, published from 2010 to 2025. 2017 was the busiest year, with 15. The most frequent topics are Melanoma, Nivolumab and Immunotherapy. Dr. Sznol has published most often in J Clin Oncol. Dr. Sznol's most frequent co-authors are Harriet Margot Kluger, MD, David Francis McDermott, MD and Michael B. Atkins, MD.
Dr. Sznol's papers by year, 2016 to 2025
Topics Dr. Sznol writes about most
- Melanoma
- Nivolumab
- Immunotherapy
- Antibodies, Monoclonal
- Antineoplastic Combined Chemotherapy Protocols
- Skin Neoplasms
- Programmed Cell Death 1 Receptor
- Ipilimumab
Dr. Sznol's most frequent co-authors
- Harriet Margot Kluger, MD52 shared papers
- David Francis McDermott, MD13 shared papers
- Michael B. Atkins, MD9 shared papers
Recent publications by Dr. Sznol
See who Dr. Sznol researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sznol works with, so you can find a warm path to the right medical oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mario Sznol has worked on 9 clinical trials
Dmand AI links Dr. Sznol to 9 clinical trials, 4 of them phase 1 studies. Conditions studied include Carcinoma, Renal Cell, Melanoma and Brain Neoplasms. Open Payments lists research payments to Dr. Sznol that name 1 trial.
Clinical trials with Dr. Sznol by phase
- 4Phase 1: 4 trials
- 2Phase 1/2: 2 trials
- 2Phase 2: 2 trials
- NonePhase 3: no trials
- NonePhase 4: no trials
Conditions in Dr. Sznol's trials
- Carcinoma, Renal Cell
- Melanoma
- Brain Neoplasms
- Neoplasms, Squamous Cell
- Sarcoma, Kaposi
Investigators on the most trials with Dr. Sznol
- Howard A. Burris, MD2 shared trials
- Scott Joseph Antonia, MD1 shared trial
- Jeanny B. Aragon-Ching, MD1 shared trial
Recent clinical trials with Dr. Sznol
Enapotamab Vedotin (HuMax-AXL-ADC) Safety Study in Patients With Solid Tumors (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Mario Sznol received $256,979 in industry payments from 2016 to 2025
CMS Open Payments shows 261 general payments to Dr. Sznol from 31 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 81% of the total. Bristol-Myers Squibb Company paid the most, $45,523. It also lists 19 research payments totaling $14,502 from 2020 to 2025, naming 1 clinical trial.
General payments to Dr. Sznol by program year, 2016 to 2025
General payments to Dr. Sznol by kind, 2016 to 2025
- Consulting fees$205,23881%
- Speaker and faculty fees$18,6137%
- Honoraria$13,2505%
- Travel and lodging$8,8173%
- Other$8,9193%
Companies that paid Dr. Sznol 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. Mario Sznol graduated from Baylor College Of Medicine
Dr. Sznol graduated from Baylor College Of Medicine in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mario Sznol'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) |
| 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) |
| 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. Mario Sznol
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. Mario Sznol's NPI number?
Dr. Mario Sznol's NPI number is 1073501748. It was assigned on October 7, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mario Sznol?
Dr. Mario Sznol is a medical oncologist in New Haven, Connecticut. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Where does Dr. Mario Sznol practice?
Dr. Sznol practices at 20 York Street, New Haven, CT 06510. Dr. Sznol's primary practice is Yale New Haven Psychiatric Hospital (York St) in New Haven, Connecticut. Dmand AI also links Dr. Sznol to 4 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. Mario Sznol's office phone number?
The practice phone on file for Dr. Sznol is (203) 688-5900.
What is Dr. Mario Sznol's medical license number?
Dr. Sznol holds Connecticut license 0358548.
Which hospitals is Dr. Mario Sznol affiliated with?
Dr. Sznol is affiliated with Yale New Haven Hospital. Dmand AI links Dr. Sznol to 4 more hospitals.
What medical group is Dr. Mario Sznol part of?
Dr. Sznol is linked to Yale Health. Dmand AI links Dr. Sznol to 1 more medical group.
Does Dr. Mario Sznol accept Medicare?
Yes. CMS data shows Dr. Sznol billed Medicare for 461 services in 2024, and Dr. Sznol accepts Medicare assignment.
Does Dr. Mario Sznol offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Sznol as offering telehealth services.
What is Dr. Mario Sznol's MIPS score?
Dr. Sznol's MIPS final score for performance year 2024 is 87 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Mario Sznol see?
CMS counts 123 Medicare patients who saw Dr. Sznol in 2024, with an average age of 75.
What services does Dr. Mario Sznol bill to Medicare?
In 2024, Dr. Sznol's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and office visit, established patient (99215).
Where did Dr. Mario Sznol go to medical school?
Dr. Sznol graduated from Baylor College Of Medicine in 1982.
What drugs does Dr. Mario Sznol prescribe most?
In 2024 Medicare Part D data, Dr. Sznol's most prescribed drugs by claims were Cabometyx, Prednisone and Levothyroxine Sodium.
Has Dr. Mario Sznol received payments from drug or device companies?
CMS Open Payments shows $256,979 in general payments to Dr. Sznol from 31 companies from 2016 to 2025. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. Mario Sznol been practicing?
Dr. Sznol graduated from medical school in 1982, 44 years ago.
Does Dr. Mario Sznol do research?
Dmand AI links 131 publications to Dr. Sznol, published from 2010 to 2025. Dr. Sznol has worked on 9 clinical trials.
Who does Dr. Mario Sznol publish with?
Dr. Sznol's most frequent co-authors are Harriet Margot Kluger, MD (52 shared papers), David Francis McDermott, MD (13 shared papers) and Michael B. Atkins, MD (9 shared papers).
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