Hyong Un, MD
NPI 1598871683 · Psychiatry Physician · Bryn Mawr, PA
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Hyong Un, MD is a Psychiatry Physician provider in Bryn Mawr, PA (NPI 1598871683).
Provider details
- NPI number
- 1598871683
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD027217E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Divalproex Sodium | 288 | 19 |
| Quetiapine Fumarate | 280 | 20 |
| Sertraline Hcl | 254 | 20 |
| Olanzapine | 244 | 16 |
| Clonazepam | 199 | 18 |
| Aripiprazole | 178 | 17 |
| Risperidone | 174 | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-22
- Last updated
- 2016-05-03
Frequently asked questions
- What is Hyong Un's NPI number?
- Hyong Un's National Provider Identifier (NPI) is 1598871683, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hyong Un's specialty?
- Hyong Un is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Hyong Un located?
- Hyong Un's practice location on file with NPPES is 234 S Bryn Mawe Avenue, Bryn Mawr, PA 19010.
- What is Hyong Un's phone number?
- The practice phone number listed in the NPPES registry for Hyong Un is (610) 544-6390.
- Does Hyong Un accept Medicare?
- Hyong Un is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Hyong Un's NPI active?
- Yes — Hyong Un's NPI (1598871683) is active in the NPPES registry as of the last update on 2016-05-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.