2026 NPPES data Prosthodontics NPI 1336269851 D.D.S
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CHIEN-HO CHEN, D.D.S

Prosthodontics in CHINO, California. 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
257
Medicare Part D claims · 84 beneficiaries · Prosthodontics avg: 85
What the federal data reveals: CHIEN-HO CHEN, D.D.S is a Prosthodontics ([object Object]) practicing in CHINO, California with a Medicare Part D prescribing footprint of 257 claims across 84 beneficiaries .

What stands out: CHIEN-HO CHEN, D.D.S filed 257 Medicare Part D claims in 2023 across CHINO, California. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

CHIEN-HO CHEN, D.D.S at a glance

Quality data not reported

NPI registry status

Active

Issued 03/29/2007

NPI 1336269851

Primary specialty

Prosthodontics

Niche

3,510 US NPIs in this specialty

Medicare Part D claims

257 202% vs specialty avg

2023 prescription claims

Specialty avg: 85

Specialty distribution in California

How Prosthodontics compares to other specialties among California providers

California providers

Prosthodontics share within California

1. Prosthodontics42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Prosthodontics share within California

Specialty board-certification context

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

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

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

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

CHIEN-HO CHEN, D.D.S is a Prosthodontics provider practicing in CHINO, California, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.D.S. NPI: 1336269851. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

CHIEN-HO CHEN, D.D.S appears in the CMS NPPES registry as a Prosthodontics provider holding D.D.S credentials at 14335 PIPELINE AVE # A, CHINO, CA, 91710, with a listed phone of (909) 902-0800. NPI 1336269851 was issued on 03/29/2007. 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 257 prescription claims written by this provider, covering 84 Medicare beneficiaries and totaling roughly $2K 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.

Prosthodontics is a narrow specialty nationwide, with 3,510 enrolled providers across 51 states and an average of 85 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

14335 PIPELINE AVE # A
CHINO, CA 91710

Provider Details

NPI 1336269851
Specialty Prosthodontics
Credentials D.D.S
Gender Male
NPI Issued 03/29/2007

License & disciplinary context — California MBC 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 ~150K California medical licensees in 2023 — they are NOT specific to CHIEN-HO CHEN, D.D.S. To verify CHIEN-HO CHEN, D.D.S's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC 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 California 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.

257
Total Claims
$2K
Total Drug Cost
84
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
258
Total Day Supply
3,401
Generic Drug Cost
$2K
Antibiotic Claims
113

Patient Demographics

Average Patient Age
74.4 years
Avg HCC Risk Score
0.93
Gender Split
48% female / 52% male

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
96
Ibuprofen
70
Chlorhexidine Gluconate
68

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

Prosthodontics Overview

How CHIEN-HO CHEN, D.D.S fits within the Prosthodontics landscape nationally.

3,510
Prosthodontics Providers in US
51
States with Prosthodontics
85
Avg Claims per Provider

CHIEN-HO CHEN, D.D.S's 257 claims are above the specialty average of 85.

Nearby Prosthodontics Providers in California

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

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

Frequently Asked Questions

What is CHIEN-HO CHEN, D.D.S's specialty?
CHIEN-HO CHEN, D.D.S specializes in Prosthodontics and practices in CHINO, California. Credentials: D.D.S.
How much does CHIEN-HO CHEN, D.D.S prescribe under Medicare Part D?
In 2023, CHIEN-HO CHEN, D.D.S wrote 257 Medicare Part D claims totaling $2K in drug costs for 84 beneficiaries.
Where is CHIEN-HO CHEN, D.D.S located?
CHIEN-HO CHEN, D.D.S is located at 14335 PIPELINE AVE # A, CHINO, CA, 91710. Phone: (909) 902-0800.
What is CHIEN-HO CHEN, D.D.S's NPI number?
CHIEN-HO CHEN, D.D.S's National Provider Identifier (NPI) is 1336269851, issued on 03/29/2007.
How many Prosthodontics providers are there in the US?
There are 3,510 Prosthodontics providers across 51 states in the US. The average Prosthodontics provider writes 85 Medicare Part D claims per year.
What drugs does CHIEN-HO CHEN, D.D.S prescribe most often?
Based on 2023 Medicare Part D data, CHIEN-HO CHEN, D.D.S's most frequently prescribed drugs include Amoxicillin, Ibuprofen, Chlorhexidine Gluconate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHIEN-HO CHEN, D.D.S accept Medicare?
CHIEN-HO CHEN, D.D.S appears in CMS Medicare data with 257 Part D claims and 84 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHIEN-HO CHEN, D.D.S's credentials?
CHIEN-HO CHEN, D.D.S's NPI is 1336269851 with credentials D.D.S. 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