NPI registry status
Active
2026 NPPES data Gastroenterology Physician NPI 1821384173 MD
Verify on CMS → Hye Yeon Jhun, MD
Gastroenterology Physician in Edmonds, Washington.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 16,601 in Gastroenterology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
229
Medicare Part D claims · 66 beneficiaries · Gastroenterology Physician avg: 833
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
99.4/100
▲ 16 pts above national avg 83.5 · Exceptional
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Hye Yeon Jhun, MD reported a CMS MIPS final score of 99.4/100 - above the 83.5 national average - and filed 229 Medicare Part D claims in 2023.
- 99.4/100
- MIPS score · +16 vs avg
- 229
- Part D claims, 2023
- 84%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Hye Yeon Jhun, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
99 ≥ 91st percentile 91% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Hye Yeon Jhun, MD sits
This provider among gastroenterology physician peers
Across the 5,560 gastroenterology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Hye Yeon Jhun, MD writes more Part D claims than 17% of them and scores higher on MIPS quality than 90% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one gastroenterology physician peer from a representative sample of 60; the gold marker is Hye Yeon Jhun, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Hye Yeon Jhun, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Hye Yeon Jhun, MD?
High performer (top quartile)Primary specialty
Gastroenterology Physician
Medicare Part D claims
229 73% vs specialty avg
MIPS final score
99.4/100 15.9 pts vs avg
Specialty distribution in Washington
How Gastroenterology Physician compares to other specialties among Washington providers
Medicare quality performance, MIPS
Hye Yeon Jhun, MD's 2023 MIPS final score plotted against the Gastroenterology Physician national average
- MIPS Final Score
- 99.4/100
- vs 83.5 national avg · 2023 performance year
MIPS final score (Gastroenterology Physician) - 99.4/100 vs national avg 83.5
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Hye Yeon Jhun, MD appears in the CMS NPPES registry as a Gastroenterology Physician provider holding MD credentials at 21600 HIGHWAY 99 STE 230, Edmonds, WA, 98026, with a listed phone of (206) 215-4250. NPI 1821384173 was issued on 06/24/2011.
Medicare Part D records for calendar year 2023 show 229 prescription claims written by this provider, covering 66 Medicare beneficiaries and totaling roughly $40K in drug spend, split 16% brand-name and 84% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 99.4/100 for the 2023 performance year (Quality 95.7), compared with the 83.5 average among clinicians with a measured score.
Gastroenterology Physician is a mid-sized specialty nationwide, with 16,601 enrolled providers across 54 states and an average of 833 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1821384173 |
|---|---|
| Specialty | Gastroenterology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 06/24/2011 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
99.3791
Final Score
Measured-score avg: 83.5
95.6994
Quality
98.9577
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Hye Yeon Jhun, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Swedish Health Services
Edmonds, WA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - Washington WMC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~34K Washington medical licensees in 2023 - they are NOT specific to Hye Yeon Jhun, MD. To verify Hye Yeon Jhun, MD's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases
WMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Hye Yeon Jhun, MD - brand share 16.0%
Gastroenterology Physician average
16% brand-name claims vs 84% generic, on 229 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
229
Total Claims
$40K
Total Drug Cost
66
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 336
- Total Day Supply
- 9,104
- Brand vs Generic
- 16% brand / 84% generic
- Brand Drug Cost
- $28K
- Generic Drug Cost
- $12K
- Antibiotic Claims
- 21
Patient Demographics
- Average Patient Age
- 66.4 years
- Avg HCC Risk Score
- 1.78
- Gender Split
- 76% female / 24% male
- Age Distribution
- <65: 20, 65-74: 33, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Hye Yeon Jhun, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Famotidine
Famotidine
30 claims
- Pantoprazole Sodium
Pantoprazole Sodium
27 claims
- Dicyclomine Hcl
Dicyclomine Hcl
26 claims
- Dexlansoprazole Dr
Dexlansoprazole Dr
19 claims
- Omeprazole
Omeprazole
17 claims
- Mesalamine
Mesalamine
12 claims
- Erythromycin Ethyl… 11
Erythromycin Ethylsuccinate
11 claims
| Drug | Claims |
|---|---|
| Famotidine | 30 |
| Pantoprazole Sodium | 27 |
| Dicyclomine Hcl | 26 |
| Dexlansoprazole Dr Dexlansoprazole | 19 |
| Omeprazole | 17 |
| Mesalamine | 12 |
| Erythromycin Ethylsuccinate | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Gastroenterology Physician Overview
How Hye Yeon Jhun, MD fits within the Gastroenterology Physician landscape nationally.
16,601
Gastroenterology Physician Providers in US
54
States with Gastroenterology Physician
833
Avg Claims per Provider
Hye Yeon Jhun, MD's 229 claims are below the specialty average of 833.
Nearby Gastroenterology Physician Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Jhun.
Dr. Bisher Abdullah
MD
Puyallup, WA
Dr. Mohammed Aboelsoud
MD
Bellingham, WA
Abimbola Adike
Poulsbo, WA
Dr. Abhishek Agarwal
MD
Puyallup, WA
Dr. Gaurav Aggarwal
M.D.
Bellevue, WA
Compare Gastroenterology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Washington medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Gastroenterology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Hye Yeon Jhun, MD's specialty? ▼
Hye Yeon Jhun, MD specializes in Gastroenterology Physician and practices in Edmonds, Washington. Credentials: MD.
How much does Hye Yeon Jhun, MD prescribe under Medicare Part D? ▼
In 2023, Hye Yeon Jhun, MD wrote 229 Medicare Part D claims totaling $40K in drug costs for 66 beneficiaries.
What is Hye Yeon Jhun, MD's Medicare quality score? ▼
Hye Yeon Jhun, MD has a CMS MIPS Final Score of 99.4/100 (Quality: 95.7). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Hye Yeon Jhun, MD located? ▼
Hye Yeon Jhun, MD is located at 21600 HIGHWAY 99 STE 230, Edmonds, WA, 98026. Phone: (206) 215-4250.
What is Hye Yeon Jhun, MD's NPI number? ▼
Hye Yeon Jhun, MD's National Provider Identifier (NPI) is 1821384173, issued on 06/24/2011.
Does Hye Yeon Jhun, MD prescribe more brand-name or generic drugs? ▼
Hye Yeon Jhun, MD's prescribing is 16% brand-name and 84% generic drugs by claim count, with $28K in brand drug costs.
How many Gastroenterology Physician providers are there in the US? ▼
There are 16,601 Gastroenterology Physician providers across 54 states in the US. The average Gastroenterology Physician provider writes 833 Medicare Part D claims per year.
What drugs does Hye Yeon Jhun, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Hye Yeon Jhun, MD's most frequently prescribed drugs include Famotidine, Pantoprazole Sodium, Dicyclomine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Hye Yeon Jhun, MD accept Medicare? ▼
Hye Yeon Jhun, MD appears in CMS Medicare data with 229 Part D claims and 66 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Hye Yeon Jhun, MD's credentials? ▼
Hye Yeon Jhun, MD's NPI is 1821384173 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.