2026 NPPES data Medical-Surgical Registered Nurse NPI 1952935157
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SUNNY YOON

Medical-Surgical Registered Nurse in ISSAQUAH, Washington. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
721
Medicare Part D claims · 107 beneficiaries · Medical-Surgical Registered Nurse avg: 798
Industry payments
$27.23
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

SUNNY YOON filed 721 Medicare Part D claims in 2023 as a Medical-Surgical Registered Nurse in ISSAQUAH, Washington.

721
Part D claims, 2023
$27.23
industry payments (Sunshine Act)

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.

SUNNY YOON's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

721 Top 29% higher than 71% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about SUNNY YOON?

Quality data not reported

NPI registry status

Active

Issued 02/26/2020

NPI 1952935157

Primary specialty

Medical-Surgical Registered Nurse

Niche

3,523 US NPIs in this specialty

Medicare Part D claims

721 10% vs specialty avg

2023 prescription claims

Specialty avg: 798

Specialty distribution in Washington

How Medical-Surgical Registered Nurse compares to other specialties among Washington providers

Washington providers

Medical-Surgical Registered Nurse share within Washington

1. Medical-Surgical Registered Nurse42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical-Surgical Registered Nurse share within Washington

Specialty board-certification context

Estimated specialty board-certified rate — Medical-Surgical Registered Nurse (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Medical-Surgical Registered Nurse ABMS/AOA estimate

Est. board-certified rate (Medical-Surgical Registered Nurse) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Medical-Surgical Registered Nurse) — ABMS / AOA estimate

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).

SUNNY YOON appears in the CMS NPPES registry as a Medical-Surgical Registered Nurse provider at 751 NE BLAKELY DR, ISSAQUAH, WA, 98029, with a listed phone of (425) 313-4000. NPI 1952935157 was issued on 02/26/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what YOON most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 721 prescription claims written by this provider, covering 107 Medicare beneficiaries and totaling roughly $41K in drug spend, with an opioid prescribing rate of 2.2%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Medical-Surgical Registered Nurse is a narrow specialty nationwide, with 3,523 enrolled providers across 54 states and an average of 798 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

751 NE BLAKELY DR
ISSAQUAH, WA 98029

Provider Details

NPI 1952935157
Specialty Medical-Surgical Registered Nurse
Gender Female
NPI Issued 02/26/2020

Hospital and facility affiliations

Facilities where SUNNY YOON 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.

MULTICARE HEALTH SYSTEM
COVINGTON, 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).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for SUNNY YOON. Source: openpaymentsdata.cms.gov.

Total received

$27

Largest payer

Exact Sciences Corporation

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

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 SUNNY YOON. To verify SUNNY YOON'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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

721
Total Claims
$41K
Total Drug Cost
107
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,384
Total Day Supply
40,371
Generic Drug Cost
$11K
Opioid Claims
16 (2.2% rate)

Patient Demographics

Average Patient Age
68.6 years
Avg HCC Risk Score
1.21
Gender Split
63% female / 37% male
Age Distribution
<65: 26, 65-74: 52, 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 SUNNY YOON prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
32
Lisinopril
30
Losartan Potassium
30
Gabapentin
28
Trazodone Hcl
28
Hydrochlorothiazide
26
Levothyroxine Sodium
26
Rosuvastatin Calcium
26
Amlodipine Besylate
25
Valsartan
24

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Medical-Surgical Registered Nurse Overview

How SUNNY YOON fits within the Medical-Surgical Registered Nurse landscape nationally.

3,523
Medical-Surgical Registered Nurse Providers in US
54
States with Medical-Surgical Registered Nurse
798
Avg Claims per Provider

SUNNY YOON's 721 claims are below the specialty average of 798.

Nearby Medical-Surgical Registered Nurse Providers in Washington

Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as YOON.

Compare Medical-Surgical Registered Nurse nationally: see state-by-state distribution →

Frequently Asked Questions

What is SUNNY YOON's specialty?
SUNNY YOON specializes in Medical-Surgical Registered Nurse and practices in ISSAQUAH, Washington.
How much does SUNNY YOON prescribe under Medicare Part D?
In 2023, SUNNY YOON wrote 721 Medicare Part D claims totaling $41K in drug costs for 107 beneficiaries.
Where is SUNNY YOON located?
SUNNY YOON is located at 751 NE BLAKELY DR, ISSAQUAH, WA, 98029. Phone: (425) 313-4000.
What is SUNNY YOON's NPI number?
SUNNY YOON's National Provider Identifier (NPI) is 1952935157, issued on 02/26/2020.
Does SUNNY YOON prescribe opioids?
Yes, SUNNY YOON had 16 opioid claims in 2023 with an opioid prescribing rate of 2.2%.
How many Medical-Surgical Registered Nurse providers are there in the US?
There are 3,523 Medical-Surgical Registered Nurse providers across 54 states in the US. The average Medical-Surgical Registered Nurse provider writes 798 Medicare Part D claims per year.
What drugs does SUNNY YOON prescribe most often?
Based on 2023 Medicare Part D data, SUNNY YOON's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SUNNY YOON accept Medicare?
SUNNY YOON appears in CMS Medicare data with 721 Part D claims and 107 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SUNNY YOON's credentials?
SUNNY YOON's NPI is 1952935157. 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

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.
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