Hyong Un, MD
Psychiatry Physician · Bryn Mawr, PA
Hyong Un, MD is a psychiatry physician with a practice address in Bryn Mawr, Pennsylvania, and NPI 1598871683, issued on Aug 22, 2006. Check the license (Pennsylvania MD027217E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Hyong Un
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- MD027217E PA
Self-reported in NPPES; status is on the state search - Practice location
- 234 S Bryn Mawe Avenue, Bryn Mawr, PA 19010
- Phone
- (610) 544-6390
- Enumerated
- Aug 22, 2006
- Record last updated
- May 3, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (610) 544-6390
- Medicaid ID
- 0010919860002 PA
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 2,662 in Pennsylvania → Look up another NPI →
Verify Hyong Un in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD027217ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average psychiatry physician in 2024
2,963 Medicare Part D claims for 85 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were under 1% of claims.
Most prescribed
- Divalproex Sodium288 claims
- Quetiapine Fumarate280 claims
- Sertraline Hcl254 claims
- Olanzapine244 claims
- Clonazepam199 claims
- Aripiprazole178 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Hyong Un among 2,662 psychiatry physician records in Pennsylvania
Hyong Un, MD is one of 2,662 psychiatry physician records with a practice address in Pennsylvania. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 61% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2016 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
63 psychiatry physician records list a practice address in Bryn Mawr
They are 63 of the 1,496 NPPES records with a practice address in Bryn Mawr, and 2,662 psychiatry physician records in Pennsylvania.
All 2,662 in Pennsylvania → Every provider in Bryn Mawr → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Angel Angelov, MDBryn Mawr, PA 190101861471757
- Stephen Baker, MDBryn Mawr, PA 190101235247180
- Marina Cooney, MDBryn Mawr, PA 190101982683207
- Stephen Mechanick, M.D.Bryn Mawr, PA 190101538265814
- David Nace, M.DBryn Mawr, PA 190101881699742
- Suzanne Reiss, M.D.Bryn Mawr, PA 190101851488365
- Thomas Riordan, M.D.Rosemont, PA 190101558479329
- Howard Rosen, MDBryn Mawr, PA 190101376587840
Common questions
What is Hyong Un, MD's NPI number?
Hyong Un, MD's National Provider Identifier (NPI) is 1598871683, issued on Aug 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Hyong Un, MD located?
The NPPES record lists a practice address at 234 S Bryn Mawe Avenue, Bryn Mawr, PA, 19010. Phone: (610) 544-6390. Providers update this record themselves, so call before visiting.
How can I verify Hyong Un, MD's license?
NPPES lists Pennsylvania license number MD027217E, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Hyong Un, MD prescribe under Medicare Part D?
In 2024, Hyong Un, MD had 2,963 Medicare Part D claims for 85 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.