2026 NPPES data Dentist NPI 1144467234 DDS
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STANFORD CHEN, DDS

Dentist in BELLEVUE, 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
36
Medicare Part D claims · 19 beneficiaries · Dentist avg: 87
Industry payments
$1.7K
9 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

STANFORD CHEN, DDS filed 36 Medicare Part D claims in 2023 as a Dentist in BELLEVUE, Washington.

36
Part D claims, 2023
$1.7K
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.

STANFORD CHEN, DDS's Medicare Part D volume vs every U.S. prescriber

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

36 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 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 STANFORD CHEN, DDS?

Quality data not reported

NPI registry status

Active

Issued 01/12/2009

NPI 1144467234

Primary specialty

Dentist

High-volume

93,789 US NPIs in this specialty

Medicare Part D claims

36 59% vs specialty avg

2023 prescription claims

Specialty avg: 87

Specialty distribution in Washington

How Dentist compares to other specialties among Washington providers

Washington providers

Dentist share within Washington

1. Dentist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Dentist share within Washington

Specialty board-certification context

Estimated specialty board-certified rate — Dentist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Dentist ABMS/AOA estimate

Est. board-certified rate (Dentist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Dentist) — 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).

STANFORD CHEN, DDS appears in the CMS NPPES registry as a Dentist provider holding DDS credentials at 12360 NE 8TH ST STE 250, BELLEVUE, WA, 98005, with a listed phone of (425) 453-2222. NPI 1144467234 was issued on 01/12/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHEN 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 36 prescription claims written by this provider, covering 19 Medicare beneficiaries and totaling roughly $200 in drug spend. 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.

Dentist is a high-volume specialty nationwide, with 93,789 enrolled providers across 56 states and an average of 87 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

12360 NE 8TH ST STE 250
BELLEVUE, WA 98005

Provider Details

NPI 1144467234
Specialty Dentist
Credentials DDS
Gender Male
NPI Issued 01/12/2009

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 STANFORD CHEN, DDS. Source: openpaymentsdata.cms.gov.

Total received

$1.7K

Largest payer

PATTERSON COMPANIES, 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 STANFORD CHEN, DDS. To verify STANFORD CHEN, DDS'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.

36
Total Claims
$200
Total Drug Cost
19
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
38
Total Day Supply
273
Generic Drug Cost
$181
Antibiotic Claims
20

Patient Demographics

Average Patient Age
75.8 years
Avg HCC Risk Score
0.88
Age Distribution
<65: 0, 65-74: N/A, 75-84: 11, 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.

Drug Claims
Amoxicillin
16

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

Dentist Overview

How STANFORD CHEN, DDS fits within the Dentist landscape nationally.

93,789
Dentist Providers in US
56
States with Dentist
87
Avg Claims per Provider

STANFORD CHEN, DDS's 36 claims are below the specialty average of 87.

Nearby Dentist Providers in Washington

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

Compare Dentist nationally: see state-by-state distribution →

Frequently Asked Questions

What is STANFORD CHEN, DDS's specialty?
STANFORD CHEN, DDS specializes in Dentist and practices in BELLEVUE, Washington. Credentials: DDS.
How much does STANFORD CHEN, DDS prescribe under Medicare Part D?
In 2023, STANFORD CHEN, DDS wrote 36 Medicare Part D claims totaling $200 in drug costs for 19 beneficiaries.
Where is STANFORD CHEN, DDS located?
STANFORD CHEN, DDS is located at 12360 NE 8TH ST STE 250, BELLEVUE, WA, 98005. Phone: (425) 453-2222.
What is STANFORD CHEN, DDS's NPI number?
STANFORD CHEN, DDS's National Provider Identifier (NPI) is 1144467234, issued on 01/12/2009.
How many Dentist providers are there in the US?
There are 93,789 Dentist providers across 56 states in the US. The average Dentist provider writes 87 Medicare Part D claims per year.
What drugs does STANFORD CHEN, DDS prescribe most often?
Based on 2023 Medicare Part D data, STANFORD CHEN, DDS's most frequently prescribed drugs include Amoxicillin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STANFORD CHEN, DDS accept Medicare?
STANFORD CHEN, DDS appears in CMS Medicare data with 36 Part D claims and 19 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STANFORD CHEN, DDS's credentials?
STANFORD CHEN, DDS's NPI is 1144467234 with credentials DDS. 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