Dr. Hiejin Yoon, MD
- Medicare services, 2019
- 37
- Publications
- 1
- Hospital affiliations
- 1
- Industry payments
- $111
- Medical groups
- 2
- Practice address
- 100 Woods Rd, Valhalla, NY 10595
- Practice phone
- Call (914) 493-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Yoon'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. Hiejin Yoon is a psychiatrist in Valhalla, New York
Dr. Yoon practices at Westchester Medical Center in Valhalla, New York, part of Westchester Medical Center Health Network.
Dr. Yoon's NPI, 1396894713, was assigned on January 9, 2007. Dr. Yoon holds Wisconsin license 49417-020.
- NPI
- 1396894713NPI Registry (opens in a new tab)
- NPI enumeration date
- January 9, 2007
- NPI status
- Active
- Practice phone
- (914) 493-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Hiejin Yoon practices at Westchester Medical Center in Valhalla, New York
Dr. Yoon's primary practice is Westchester Medical Center, at 100 Woods Rd, Valhalla, NY 10595 in Westchester County. The practice phone is (914) 493-7000.
- Westchester Medical Center100 Woods Rd, Valhalla, NY 10595 · Westchester CountyPhone(914) 493-7000
Source: Dmand AI Affiliation Data
Dr. Hiejin Yoon is affiliated with 2 sites of care and 2 medical groups
Dr. Yoon's primary practice is Westchester Medical Center in Valhalla, New York, part of Westchester Medical Center Health Network. The medical group on file is Westchester Medical Center Advanced Physician Services. Dmand AI also links Dr. Yoon to 1 more group practice or clinic and 1 medical group, each named with a free account. Dr. Yoon'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. Hiejin Yoon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Yoon practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Westchester Medical Center | 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 Westchester Medical Center Health Network and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Hiejin Yoon is one of 4,448 psychiatrists in New York
Psychiatry is Dr. Yoon's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Yoon is licensed in Wisconsin.
Specialties and state licenses
- Psychiatry, WisconsinPrimary
Psychiatrists near Dr. Yoon
Counts of psychiatrists 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. Hiejin Yoon billed Medicare for 37 services in 2019
CMS data shows 37 Medicare services from Dr. Yoon across 1 procedure code in 2019. Medicare paid $2,489 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Yoon compared with the New York median for psychiatrists, 2019
- Dr. Yoon
- New York median
- Medicare services
- 37vs 14274% below
Medians across 5,024 psychiatrists in New York with Dmand AI profiles that report each measure.
Dr. Yoon's most billed Medicare procedure codes, 2019
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Yoon?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Yoon and other psychiatrists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Hiejin Yoon's patients have a median age of 15
Across all payers, Dmand AI patient panel data puts Dr. Yoon's median patient age at 15, with 51% women.
Dr. Yoon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 15
Patient panel by sex, all payers
- Women51%
- Men45%
Source: Dmand AI Patient Panel 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.
Dr. Hiejin Yoon has 1 publication on record
Dmand AI links 1 paper to Dr. Yoon in 2014. Dr. Yoon's most frequent co-author is Aaron J. Roberto, MD.
Dr. Yoon's most frequent co-authors
Recent publications by Dr. Yoon
See who Dr. Yoon researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Yoon works with, so you can find a warm path to the right psychiatrists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Hiejin Yoon received $111 in industry payments in 2016
CMS Open Payments shows 1 general payment to Dr. Yoon from 1 drug or device company in 2016. Food and beverage make up the largest share, 100% of the total. Otsuka America Pharmaceutical, Inc. paid the most, $111.
Companies that paid Dr. Yoon the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Hiejin Yoon'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 Data |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Hiejin Yoon
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. Hiejin Yoon's NPI number?
Dr. Hiejin Yoon's NPI number is 1396894713. It was assigned on January 9, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Hiejin Yoon?
Dr. Hiejin Yoon is a psychiatrist in Valhalla, New York. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Hiejin Yoon practice?
Dr. Yoon practices at 100 Woods Rd, Valhalla, NY 10595. Dr. Yoon's primary practice is Westchester Medical Center in Valhalla, New York, part of Westchester Medical Center Health Network. Dmand AI also links Dr. Yoon to 1 group practice or clinic and 1 medical group.
What is Dr. Hiejin Yoon's office phone number?
The practice phone on file for Dr. Yoon is (914) 493-7000.
What is Dr. Hiejin Yoon's medical license number?
Dr. Yoon holds Wisconsin license 49417-020.
Which hospitals is Dr. Hiejin Yoon affiliated with?
Dr. Yoon practices at Westchester Medical Center in Valhalla, New York.
What medical group is Dr. Hiejin Yoon part of?
Dr. Yoon is linked to Westchester Medical Center Advanced Physician Services. Dmand AI links Dr. Yoon to 1 more medical group.
Does Dr. Hiejin Yoon accept Medicare?
Yes. CMS data shows Dr. Yoon billed Medicare for 37 services in 2019.
What services does Dr. Hiejin Yoon bill to Medicare?
In 2019, Dr. Yoon's most billed Medicare services were hospital inpatient care (99232).
Has Dr. Hiejin Yoon received payments from drug or device companies?
CMS Open Payments shows $111 in general payments to Dr. Yoon from 1 company from 2016 to 2016. The largest total came from Otsuka America Pharmaceutical, Inc.
Show 3 more questionsShow fewer questions
How long has Dr. Hiejin Yoon been practicing?
Dr. Yoon graduated from medical school in 1992, 34 years ago.
Does Dr. Hiejin Yoon do research?
Dmand AI links 1 publication to Dr. Yoon.
Who does Dr. Hiejin Yoon publish with?
Dr. Yoon's most frequent co-authors are Aaron J. Roberto, MD (1 shared paper).
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