Heeseung Kwak
- Part D claims, 2024
- 46
- Hospital affiliations
- 1
- Industry payments
- $95
- Medical groups
- 2
- State license
- 1
- 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 Heeseung Kwak'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.
Heeseung Kwak is an acute care nurse practitioner in New York, New York
Heeseung Kwak practices at The Mount Sinai Hospital in New York, New York, part of Mount Sinai Health System.
Heeseung Kwak's NPI, 1609220029, was assigned on April 21, 2016. Heeseung Kwak holds New York license F430937-1.
- NPI
- 1609220029NPI Registry (opens in a new tab)
- NPI enumeration date
- April 21, 2016
- NPI status
- Active
- Practice phone
- (212) 241-7981
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Heeseung Kwak practices at 2 locations in New York, New York
Heeseung Kwak'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. Heeseung Kwak 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
Heeseung Kwak is affiliated with 2 sites of care and 2 medical groups
Heeseung Kwak's primary practice is The Mount Sinai Hospital in New York, New York, part of Mount Sinai Health System. The medical group on file is Mount Sinai Institute for Liver Medicine. Dmand AI also links Heeseung Kwak to 1 more 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 Heeseung Kwak's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Heeseung Kwak practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Mount Sinai Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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.
Heeseung Kwak is one of 1,230 acute care nurse practitioners in New York
Acute care is Heeseung Kwak's primary specialty in the NPI Registry, under taxonomy code 363LA2100X. Heeseung Kwak is licensed in New York.
Specialties and state licenses
- Acute care nurse practitioner, New YorkPrimary
Acute care nurse practitioners near Heeseung Kwak
Counts of acute care nurse practitioners 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
Heeseung Kwak's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts Heeseung Kwak's median patient age at 68, with 52% women.
Heeseung Kwak's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women52%
- Men45%
Source: Dmand AI Patient Panel Data
Heeseung Kwak wrote 46 Medicare Part D claims in 2024
In 2024, Heeseung Kwak wrote 46 Medicare Part D claims for 20 patients. 65% of them were for generic drugs.
Heeseung Kwak's Part D claims by kind of drug, 2024
- Generic30 claims65%
- Brand-name16 claims35%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Heeseung Kwak received $95 in industry payments in 2025
CMS Open Payments shows 1 general payment to Heeseung Kwak from 1 drug or device company in 2025. Education make up the largest share, 100% of the total. Seagen Inc. paid the most, $95.
Companies that paid Heeseung Kwak the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Heeseung Kwak'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 (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 Heeseung Kwak
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Heeseung Kwak's NPI number?
Heeseung Kwak's NPI number is 1609220029. It was assigned on April 21, 2016, and it is active in the NPI Registry.
What does Heeseung Kwak specialize in?
Heeseung Kwak is an acute care nurse practitioner in New York, New York. The primary specialty in the NPI Registry is Acute Care Nurse Practitioner (taxonomy code 363LA2100X).
Where does Heeseung Kwak practice?
Heeseung Kwak practices at One Gustave L Levy Place, New York, NY 10029. Heeseung Kwak also practices at 1 Gustave L Levy Pl, New York, NY 10029. Heeseung Kwak's primary practice is The Mount Sinai Hospital in New York, New York, part of Mount Sinai Health System. Dmand AI also links Heeseung Kwak to 1 group practice or clinic and 1 medical group.
What is Heeseung Kwak's office phone number?
The practice phone on file for Heeseung Kwak is (212) 241-7981.
What is Heeseung Kwak's medical license number?
Heeseung Kwak holds New York license F430937-1.
Which hospitals is Heeseung Kwak affiliated with?
Heeseung Kwak practices at The Mount Sinai Hospital in New York, New York.
What medical group is Heeseung Kwak part of?
Heeseung Kwak is linked to Mount Sinai Institute for Liver Medicine. Dmand AI links Heeseung Kwak to 1 more medical group.
Has Heeseung Kwak received payments from drug or device companies?
CMS Open Payments shows $95 in general payments to Heeseung Kwak from 1 company from 2025 to 2025. The largest total came from Seagen Inc.
How long has Heeseung Kwak been practicing?
Heeseung Kwak graduated from medical school in 2015, 11 years ago.
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