Dr. Gregory P. Tsai, MD
- Medicare services, 2024
- 864
- Medicare patients, 2024
- 343
- Part D claims, 2024
- 528
- Hospital affiliations
- 1
- Industry payments
- $2,402
- 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. Tsai'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. Gregory P. Tsai is an otolaryngologist in New York, New York
Dr. Tsai practices at Madison Surgical Obs, LLC in New York, New York.
Dr. Tsai's NPI, 1760484661, was assigned on August 11, 2005. Dr. Tsai graduated from Baylor College of Medicine in 1996. Dr. Tsai holds New York license 208808.
- NPI
- 1760484661NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7012079577
- NPI enumeration date
- August 11, 2005
- 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
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Gregory P. Tsai practices at Madison Surgical Obs, LLC in New York, New York
Dr. Tsai'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. Gregory P. Tsai is affiliated with 4 sites of care and 2 medical groups
Dr. Tsai's primary practice is Madison Surgical Obs, LLC in New York, New York. Dr. Tsai is also affiliated with Mount Sinai West. The medical group on file is Mount Sinai Institute for Liver Medicine. Dmand AI also links Dr. Tsai to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Gregory P. Tsai's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tsai 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 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory P. Tsai is one of 660 otolaryngologists in New York
Otolaryngology is Dr. Tsai's primary specialty in the NPI Registry, under taxonomy code 207Y00000X. Dr. Tsai is licensed in New York.
Specialties and state licenses
- Otolaryngology, New YorkPrimary
Otolaryngologists near Dr. Tsai
Counts of otolaryngologists 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. Gregory P. Tsai billed Medicare for 864 services in 2024
CMS data shows 864 Medicare services from Dr. Tsai across 11 procedure codes in 2024, for 343 Medicare patients. Medicare paid $58,598 for them. Every service was in an office.
Dr. Tsai's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4042024: 4112%
- Tests and treatments
- 2023: 222024: 224918%
- Surgery
- 2023: 2052024: 2081%
- Other services
- 2023: 302024: 2130%
Dr. Tsai compared with the New York median for otolaryngologists, 2024
- Dr. Tsai
- New York median
- Medicare services
- 864vs 72020% above
- Medicare patients
- 343vs 29616% above
- Part D claims
- 412vs 29838% above
Medians across 638 otolaryngologists in New York with Dmand AI profiles that report each measure.
Dr. Tsai'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tsai and other otolaryngologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Gregory P. Tsai treated 343 Medicare patients in 2024, average age 75
CMS counts 343 Medicare patients who saw Dr. Tsai in 2024. The largest group is 65 to 74, with 154 patients. 75% of them have high cholesterol, and 59% have high blood pressure. 9% are also on Medicaid. Their average risk score is 1.01, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Tsai's median patient age at 48, with 48% women.
Dr. Tsai's Medicare patients by age, 2024
Dr. Tsai's Medicare patients by sex, 2024
- Women20660%
- Men13740%
Chronic conditions among Dr. Tsai's Medicare patients, 2024
- High cholesterol75%
- High blood pressure59%
- Arthritis50%
- Ischemic heart disease28%
- Mood disorders23%
- Osteoporosis22%
- Anxiety21%
- Depression19%
Share of Medicare patients with each condition. A patient can have several.
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 48
Patient panel by sex, all payers
- Women48%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Gregory P. Tsai wrote 528 Medicare Part D claims in 2024
In 2024, Dr. Tsai wrote 528 Medicare Part D claims for 158 patients. 94% of them were for generic drugs. CMS names the drug for 412 of them, across 9 drugs with 11 or more claims each, at $250,561 in total drug cost. In 2023, CMS named 331 claims across 8 drugs.
Dr. Tsai's Part D claims by kind of drug, 2024
- Generic497 claims94%
- Brand-name31 claims6%
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.
Drug classes CMS tracks in Dr. Tsai's Part D claims, 2024
- Antibiotics6%32 of 528 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3312024: 41224%
Drugs named by CMS: 9 in 2024, 8 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
How Dr. Gregory P. Tsai takes part in Medicare
Dr. Tsai 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. Gregory P. Tsai received $2,402 in industry payments from 2016 to 2023
CMS Open Payments shows 42 general payments to Dr. Tsai from 18 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 93% of the total. Intersect ENT, Inc. paid the most, $733.
General payments to Dr. Tsai by program year, 2016 to 2023
General payments to Dr. Tsai by kind, 2016 to 2023
- Food and beverage$2,23293%
- Travel and lodging$1707%
Companies that paid Dr. Tsai the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory P. Tsai graduated from Baylor College of Medicine
Dr. Tsai graduated from Baylor College of Medicine in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory P. 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 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) |
| 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. Gregory P. 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. Gregory P. Tsai's NPI number?
Dr. Gregory P. Tsai's NPI number is 1760484661. It was assigned on August 11, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory P. Tsai?
Dr. Gregory P. Tsai is an otolaryngologist in New York, New York. The primary specialty in the NPI Registry is Otolaryngology Physician (taxonomy code 207Y00000X).
Where does Dr. Gregory P. Tsai practice?
Dr. Tsai practices at 425 W 59th St, New York, NY 10019. Dr. Tsai's primary practice is Madison Surgical Obs, LLC in New York, New York. Dmand AI also links Dr. Tsai to 2 group practices and clinics and 1 medical group.
What is Dr. Gregory P. Tsai's office phone number?
The practice phone on file for Dr. Tsai is (212) 523-8417.
What is Dr. Gregory P. Tsai's medical license number?
Dr. Tsai holds New York license 208808.
Which hospitals is Dr. Gregory P. Tsai affiliated with?
Dr. Tsai is affiliated with Mount Sinai West.
What medical group is Dr. Gregory P. Tsai part of?
Dr. Tsai is linked to Mount Sinai Institute for Liver Medicine. Dmand AI links Dr. Tsai to 1 more medical group.
Does Dr. Gregory P. Tsai accept Medicare?
Yes. CMS data shows Dr. Tsai billed Medicare for 864 services in 2024, and Dr. Tsai accepts Medicare assignment.
How many Medicare patients does Dr. Gregory P. Tsai see?
CMS counts 343 Medicare patients who saw Dr. Tsai in 2024, with an average age of 75.
What services does Dr. Gregory P. Tsai bill to Medicare?
In 2024, Dr. Tsai's most billed Medicare services were office visit, established patient (99213), office visit, new patient (99203) and ear, nose and throat service (92557).
Show 4 more questionsShow fewer questions
Where did Dr. Gregory P. Tsai go to medical school?
Dr. Tsai graduated from Baylor College of Medicine in 1996.
What drugs does Dr. Gregory P. Tsai prescribe most?
In 2024 Medicare Part D data, Dr. Tsai's most prescribed drugs by claims were Ipratropium Bromide, Famotidine and Fluticasone Propionate.
Has Dr. Gregory P. Tsai received payments from drug or device companies?
CMS Open Payments shows $2,402 in general payments to Dr. Tsai from 18 companies from 2016 to 2023. The largest total came from Intersect ENT, Inc.
How long has Dr. Gregory P. Tsai been practicing?
Dr. Tsai graduated from medical school in 1996, 30 years ago.
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