2026 NPPES data Endodontics NPI 1386809952 D.M.D.
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STEVEN RYU, D.M.D.

Endodontics in NEWTOWN, Pennsylvania. 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
129
Medicare Part D claims · 106 beneficiaries · Endodontics avg: 116
Industry payments
$288.47
11 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: STEVEN RYU, D.M.D. is a Endodontics ([object Object]) practicing in NEWTOWN, Pennsylvania with a Medicare Part D prescribing footprint of 129 claims across 106 beneficiaries . Industry payments of $288.47 across 11 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: STEVEN RYU, D.M.D. filed 129 Medicare Part D claims in 2023 across NEWTOWN, Pennsylvania. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

STEVEN RYU, D.M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 07/23/2008

NPI 1386809952

Primary specialty

Endodontics

Mid-sized

5,856 US NPIs in this specialty

Medicare Part D claims

129 11% vs specialty avg

2023 prescription claims

Specialty avg: 116

Specialty distribution in Pennsylvania

How Endodontics compares to other specialties among Pennsylvania providers

Pennsylvania providers

Endodontics share within Pennsylvania

1. Endodontics42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endodontics share within Pennsylvania

Specialty board-certification context

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

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

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

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

STEVEN RYU, D.M.D. is a Endodontics provider practicing in NEWTOWN, Pennsylvania, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.M.D.. NPI: 1386809952. 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.

STEVEN RYU, D.M.D. appears in the CMS NPPES registry as a Endodontics provider holding D.M.D. credentials at 660 NEWTOWN YARDLEY RD, NEWTOWN, PA, 18940, with a listed phone of (215) 497-4977. NPI 1386809952 was issued on 07/23/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RYU 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 129 prescription claims written by this provider, covering 106 Medicare beneficiaries and totaling roughly $492 in drug spend, with an opioid prescribing rate of 10.1%. 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.

Endodontics is a mid-sized specialty nationwide, with 5,856 enrolled providers across 53 states and an average of 116 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

660 NEWTOWN YARDLEY RD
NEWTOWN, PA 18940

Provider Details

NPI 1386809952
Specialty Endodontics
Credentials D.M.D.
Gender Male
NPI Issued 07/23/2008

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 STEVEN RYU, D.M.D.. Source: openpaymentsdata.cms.gov.

Total received

$288

Largest payer

Dentsply Sirona 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 — Pennsylvania PA-BOM 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 ~45K Pennsylvania medical licensees in 2023 — they are NOT specific to STEVEN RYU, D.M.D.. To verify STEVEN RYU, D.M.D.'s current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases

PA-BOM 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 Pennsylvania 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.

129
Total Claims
$492
Total Drug Cost
106
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
129
Total Day Supply
816
Brand Drug Cost
$0
Generic Drug Cost
$492
Opioid Claims
13 (10.1% rate)
Antibiotic Claims
106

Patient Demographics

Average Patient Age
71.6 years
Avg HCC Risk Score
0.67
Gender Split
63% female / 37% 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
71
Clindamycin Hcl
23

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

Endodontics Overview

How STEVEN RYU, D.M.D. fits within the Endodontics landscape nationally.

5,856
Endodontics Providers in US
53
States with Endodontics
116
Avg Claims per Provider

STEVEN RYU, D.M.D.'s 129 claims are above the specialty average of 116.

Nearby Endodontics Providers in Pennsylvania

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

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

Frequently Asked Questions

What is STEVEN RYU, D.M.D.'s specialty?
STEVEN RYU, D.M.D. specializes in Endodontics and practices in NEWTOWN, Pennsylvania. Credentials: D.M.D..
How much does STEVEN RYU, D.M.D. prescribe under Medicare Part D?
In 2023, STEVEN RYU, D.M.D. wrote 129 Medicare Part D claims totaling $492 in drug costs for 106 beneficiaries.
Where is STEVEN RYU, D.M.D. located?
STEVEN RYU, D.M.D. is located at 660 NEWTOWN YARDLEY RD, NEWTOWN, PA, 18940. Phone: (215) 497-4977.
What is STEVEN RYU, D.M.D.'s NPI number?
STEVEN RYU, D.M.D.'s National Provider Identifier (NPI) is 1386809952, issued on 07/23/2008.
Does STEVEN RYU, D.M.D. prescribe opioids?
Yes, STEVEN RYU, D.M.D. had 13 opioid claims in 2023 with an opioid prescribing rate of 10.1%.
How many Endodontics providers are there in the US?
There are 5,856 Endodontics providers across 53 states in the US. The average Endodontics provider writes 116 Medicare Part D claims per year.
What drugs does STEVEN RYU, D.M.D. prescribe most often?
Based on 2023 Medicare Part D data, STEVEN RYU, D.M.D.'s most frequently prescribed drugs include Amoxicillin, Clindamycin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STEVEN RYU, D.M.D. accept Medicare?
STEVEN RYU, D.M.D. appears in CMS Medicare data with 129 Part D claims and 106 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STEVEN RYU, D.M.D.'s credentials?
STEVEN RYU, D.M.D.'s NPI is 1386809952 with credentials D.M.D.. 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