Dr. Irene Tsai, MD
- Part D claims, 2024
- 295
- Hospital affiliations
- 1
- Industry payments
- $182
- State license
- 1
- Year NPI issued
- 2022
- Practice address
- One Gustave L Levy Place, New York, NY 10029
- Practice phone
- Call (212) 241-7981
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Tsai's professional email, personal email and mobile number
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Dr. Irene Tsai is an internist in New York, New York
Dr. Tsai practices at The Mount Sinai Hospital in New York, New York, part of Mount Sinai Health System.
Dr. Tsai's NPI, 1558000497, was assigned on May 31, 2022. Dr. Tsai holds Pennsylvania license MT226793.
- NPI
- 1558000497NPI Registry (opens in a new tab)
- NPI enumeration date
- May 31, 2022
- NPI status
- Active
- Practice phone
- (212) 241-7981
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Irene Tsai practices at 2 locations in New York, New York
Dr. Tsai's primary practice is The Mount Sinai Hospital, at One Gustave L Levy Place, New York, NY 10029 in New York County. The practice phone is (212) 241-7981. Dr. Tsai also practices at The Mount Sinai Hospital, 1 Gustave L Levy Pl, New York, NY 10029.
- The Mount Sinai HospitalPrimaryOne Gustave L Levy Place, New York, NY 10029 · New York CountyPhone(212) 241-7981
- The Mount Sinai Hospital1 Gustave L Levy Pl, New York, NY 10029 · New York CountyPhone(212) 256-2904
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Irene Tsai is affiliated with 1 site of care
Dr. Tsai's primary practice is The Mount Sinai Hospital in New York, New York, part of Mount Sinai Health System. Dr. Tsai's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Irene Tsai's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tsai practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Mount Sinai Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Mount Sinai Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Irene Tsai is one of 9,643 internists in New York
Internal medicine is Dr. Tsai's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Tsai is licensed in Pennsylvania.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
Internists near Dr. Tsai
Counts of internists 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. Irene Tsai's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Dr. Tsai's median patient age at 61, with 0% women.
Dr. Tsai's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Irene Tsai wrote 295 Medicare Part D claims in 2024
In 2024, Dr. Tsai wrote 295 Medicare Part D claims for 50 patients. 74% of them were for generic drugs. CMS names the drug for 139 of them, across 9 drugs with 11 or more claims each, at $2,708 in total drug cost. In 2023, CMS named 171 claims across 10 drugs.
Dr. Tsai's Part D claims by kind of drug, 2024
- Generic219 claims74%
- Brand-name and other76 claims26%
Dr. Tsai'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: 1712024: 13919%
Drugs named by CMS: 9 in 2024, 10 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
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Dr. Irene Tsai received $182 in industry payments from 2022 to 2025
CMS Open Payments shows 3 general payments to Dr. Tsai from 2 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $152.
General payments to Dr. Tsai by program year, 2022 to 2025
Companies that paid Dr. Tsai the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Irene Tsai'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 Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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 Dr. Irene Tsai
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. Irene Tsai's NPI number?
Dr. Irene Tsai's NPI number is 1558000497. It was assigned on May 31, 2022, and it is active in the NPI Registry.
What kind of doctor is Dr. Irene Tsai?
Dr. Irene Tsai is an internist in New York, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Irene Tsai practice?
Dr. Tsai practices at One Gustave L Levy Place, New York, NY 10029. Dr. Tsai also practices at 1 Gustave L Levy Pl, New York, NY 10029. Dr. Tsai's primary practice is The Mount Sinai Hospital in New York, New York, part of Mount Sinai Health System.
What is Dr. Irene Tsai's office phone number?
The practice phone on file for Dr. Tsai is (212) 241-7981.
What is Dr. Irene Tsai's medical license number?
Dr. Tsai holds Pennsylvania license MT226793.
Which hospitals is Dr. Irene Tsai affiliated with?
Dr. Tsai practices at The Mount Sinai Hospital in New York, New York.
What drugs does Dr. Irene Tsai prescribe most?
In 2024 Medicare Part D data, Dr. Tsai's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Valsartan.
Has Dr. Irene Tsai received payments from drug or device companies?
CMS Open Payments shows $182 in general payments to Dr. Tsai from 2 companies from 2022 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Irene Tsai been practicing?
Dr. Tsai's NPI was assigned in 2022.
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