Joanna Yun, MD
NPI 1316202450 · Family Medicine Physician · Waipahu, HI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanna Yun, MD is a Family Medicine Physician provider in Waipahu, HI (NPI 1316202450).
Provider details
- NPI number
- 1316202450
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 25MA10349600 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
22 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 22 | $91 |
Typical Medicare-allowed amounts for these services range $91–$91 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 103 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 637 | 248 |
| Losartan Potassium | 337 | 137 |
| Amlodipine Besylate | 232 | 92 |
| Levothyroxine Sodium | 193 | 69 |
| Lisinopril | 186 | 80 |
| Zolpidem Tartrate | 138 | 28 |
| Albuterol Sulfate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-07-04
- Last updated
- 2023-08-23
- Certified
- 2023-08-23
Frequently asked questions
- What is Joanna Yun's NPI number?
- Joanna Yun's National Provider Identifier (NPI) is 1316202450, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanna Yun's specialty?
- Joanna Yun is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joanna Yun located?
- Joanna Yun's practice location on file with NPPES is 94-1480 Moaniani St, Waipahu, HI 96797-4632.
- What is Joanna Yun's phone number?
- The practice phone number listed in the NPPES registry for Joanna Yun is (808) 432-3100.
- Does Joanna Yun accept Medicare?
- Joanna Yun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joanna Yun's NPI active?
- Yes — Joanna Yun's NPI (1316202450) is active in the NPPES registry as of the last update on 2023-08-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.