Johnny Yun, PA C
NPI 1538155312 · Physician Assistant · Portland, OR
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Johnny Yun, PA C is a Physician Assistant provider in Portland, OR (NPI 1538155312).
Provider details
- NPI number
- 1538155312
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA C
- Sex
- Male
- Sole proprietor
- No
- License
- PA 00686 (OR)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 216 | 162 |
| Ondansetronbrand: Ondansetron Odt | 87 | 86 |
| Meloxicam | 51 | 48 |
| Cefadroxil | 19 | 19 |
| Hydromorphone Hcl | 19 | 16 |
| Naloxone Hcl | 14 | 14 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 12 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-09-27
- Last updated
- 2013-09-24
Frequently asked questions
- What is Johnny Yun's NPI number?
- Johnny Yun's National Provider Identifier (NPI) is 1538155312, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Johnny Yun's specialty?
- Johnny Yun is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Johnny Yun located?
- Johnny Yun's practice location on file with NPPES is 9155 Sw Barnes Rd, Portland, OR 97225-6625.
- What is Johnny Yun's phone number?
- The practice phone number listed in the NPPES registry for Johnny Yun is (503) 297-3766.
- Does Johnny Yun accept Medicare?
- Johnny Yun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Johnny Yun's NPI active?
- Yes — Johnny Yun's NPI (1538155312) is active in the NPPES registry as of the last update on 2013-09-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.