NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1801979836 MD
Verify on CMS → Esther Liu, MD
Family Medicine Physician in Bellevue, 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 147,760 in Family Medicine 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
3K
Medicare Part D claims · 287 beneficiaries · Family Medicine Physician avg: 3K
Industry payments
$733.93
6 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Esther Liu, MD filed 3,194 Medicare Part D claims in 2023 as a Family Medicine Physician in Bellevue, Washington.
- 3K
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥89th
- pct by Part D claim volume (lower-bound band)
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.
CMS NPPES provider registry desk
NPI 1801979836 · Family Medicine Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-MID · BOOK-MID · PHOTO-ENUM
- NPI-10 1801979836
- ENUM-LEGACY 2006
- TAX-MEGA 148K Family Medicine
- RX-MID 3,194
- BOOK-MID 5,197 in Washington
- PHOTO-ENUM Mahmood Karimi · 2006
Esther Liu, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,194 ≥ 89th percentile 89% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Esther Liu, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Esther Liu, MD?
Quality data not reportedPrimary specialty
Family Medicine Physician
Medicare Part D claims
3,194 7% vs specialty avg
Specialty distribution in Washington
How Family Medicine Physician compares to other specialties among Washington providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Family Medicine Physician. Verify directly:
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).
Practice Address
Provider Details
| NPI | 1801979836 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 10/23/2006 |
Hospital and facility affiliations
Facilities where Esther Liu, 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
Bellevue, 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 Esther Liu, MD. Source: openpaymentsdata.cms.gov.
Total received
$734
Largest payer
Phathom Pharmaceuticals, Inc.
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 Esther Liu, MD. To verify Esther Liu, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
3,194
Total Claims
$275K
Total Drug Cost
287
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 8,336
- Total Day Supply
- 247,380
- Generic Drug Cost
- $68K
- Opioid Claims
- 27 (0.8% rate)
- Antibiotic Claims
- 39
Patient Demographics
- Average Patient Age
- 74.7 years
- Avg HCC Risk Score
- 0.89
- Gender Split
- 71% female / 29% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Esther Liu, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
428 claims
- Losartan Potassium
Losartan Potassium
232 claims
- Lisinopril 170
Lisinopril
170 claims
- Levothyroxine Sodium 159
Levothyroxine Sodium
159 claims
- Metformin Hcl Er 139
Metformin Hcl Er
139 claims
- Amlodipine Besylate 137
Amlodipine Besylate
137 claims
- Simvastatin 124
Simvastatin
124 claims
- Alendronate Sodium 83
Alendronate Sodium
83 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 428 |
| Losartan Potassium | 232 |
| Lisinopril | 170 |
| Levothyroxine Sodium | 159 |
| Metformin Hcl Er Metformin Hcl | 139 |
| Amlodipine Besylate | 137 |
| Simvastatin | 124 |
| Alendronate Sodium | 83 |
| Rosuvastatin Calcium | 81 |
| Hydrochlorothiazide | 76 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Esther Liu, MD fits within the Family Medicine Physician landscape nationally.
147,760
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider
Esther Liu, MD's 3,194 claims are below the specialty average of 3,418.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Liu, both outside Washington so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Liu.
One of 5,197 Family Medicine Physician providers enrolled in Washington, 5 are shown here.
Dr. Shawn Aaron
MD
Longview, WA
Dr. John Abano
M.D.
Shoreline, WA
Dr. Sarah Abbot
DO
Kirkland, WA
Dr. Arthur Abbott
M.D.
Seattle, WA
Dr. Dale Abbott
MD
Burlington, WA
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Esther Liu, MD's specialty? ▼
Esther Liu, MD specializes in Family Medicine Physician and practices in Bellevue, Washington. Credentials: MD.
How much does Esther Liu, MD prescribe under Medicare Part D? ▼
In 2023, Esther Liu, MD wrote 3,194 Medicare Part D claims totaling $275K in drug costs for 287 beneficiaries.
Where is Esther Liu, MD located? ▼
Esther Liu, MD is located at 12917 SE 38TH ST STE 100, Bellevue, WA, 98006. Phone: (425) 641-4000.
What is Esther Liu, MD's NPI number? ▼
Esther Liu, MD's National Provider Identifier (NPI) is 1801979836, issued on 10/23/2006.
Does Esther Liu, MD prescribe opioids? ▼
Yes, Esther Liu, MD had 27 opioid claims in 2023 with an opioid prescribing rate of 0.8%.
How many Family Medicine Physician providers are there in the US? ▼
There are 147,760 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does Esther Liu, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Esther Liu, MD's most frequently prescribed drugs include Atorvastatin Calcium, Losartan Potassium, Lisinopril. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Esther Liu, MD accept Medicare? ▼
Esther Liu, MD appears in CMS Medicare data with 3,194 Part D claims and 287 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Esther Liu, MD's credentials? ▼
Esther Liu, MD's NPI is 1801979836 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.
- 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.