NPI registry status
Active
2026 NPPES data Pain Medicine (Anesthesiology) Physician NPI 1457414989 MD
Verify on CMS → Dennis Yun, MD
Pain Medicine (Anesthesiology) Physician in Marina Del Rey, California.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 4,032 in Pain Medicine (Anesthesiology) 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
34
Medicare Part D claims · 15 beneficiaries · Pain Medicine (Anesthesiology) Physician avg: 2K
Industry payments
$35.15
2 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Dennis Yun, MD filed 34 Medicare Part D claims in 2023 as a Pain Medicine (Anesthesiology) Physician in Marina Del Rey, California.
- 34
- Part D claims, 2023
- $35.15
- industry payments (Sunshine Act)
- ≥0th
- 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 1457414989 · Pain Medicine (Anesthesiology) Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1457414989
- ENUM-LEGACY 2006
- TAX-NARROW 4,032
- RX-TRACE 34
- BOOK-THIN 414 in California
- PHOTO-ENUM Chong Park · 2006
Dennis Yun, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
34 ≥ 0th percentile 0% 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
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Board-eligible specialty (heuristic, not verified)
Dennis Yun, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Dennis Yun, MD?
Quality data not reportedPrimary specialty
Pain Medicine (Anesthesiology) Physician
Medicare Part D claims
34 98% vs specialty avg
Specialty distribution in California
How Pain Medicine (Anesthesiology) Physician compares to other specialties among California 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 Pain Medicine (Anesthesiology) 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 | 1457414989 |
|---|---|
| Specialty | Pain Medicine (Anesthesiology) Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 12/18/2006 |
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 Dennis Yun, MD. Source: openpaymentsdata.cms.gov.
Total received
$35
Largest payer
Boston Scientific 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 - 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 Dennis Yun, MD. To verify Dennis Yun, MD'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.
34
Total Claims
$512
Total Drug Cost
15
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 42
- Total Day Supply
- 1,072
- Brand Drug Cost
- $0
- Generic Drug Cost
- $512
- Opioid Claims
- 13 (38.2% rate)
Patient Demographics
- Average Patient Age
- 65.0 years
- Avg HCC Risk Score
- 1.44
More Pain Medicine (Anesthesiology) Physician in CA →
All providers in California →
Compare specialties →
Pain Medicine (Anesthesiology) Physician Overview
How Dennis Yun, MD fits within the Pain Medicine (Anesthesiology) Physician landscape nationally.
4,032
Pain Medicine (Anesthesiology) Physician Providers in US
53
States with Pain Medicine (Anesthesiology) Physician
1,657
Avg Claims per Provider
Dennis Yun, MD's 34 claims are below the specialty average of 1,657.
Nationwide Pain Medicine (Anesthesiology) Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Yun, both outside California 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 Pain Medicine (Anesthesiology) Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Yun.
One of 414 Pain Medicine (Anesthesiology) Physician providers enrolled in California, 5 are shown here.
Dr. Shahram Abbassi
MD
Arcata, CA
Dr. Chris Abrecht
M.D.
San Francisco, CA
Dr. Rishi Agarwal
M.D.
Pasadena, CA
Dr. Bashar Ahmed
M.D.
Santa Rosa, CA
Dr. Jane Ahn
M.D.
Stanford, CA
Compare Pain Medicine (Anesthesiology) Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Dennis Yun, MD's specialty? ▼
Dennis Yun, MD specializes in Pain Medicine (Anesthesiology) Physician and practices in Marina Del Rey, California. Credentials: MD.
How much does Dennis Yun, MD prescribe under Medicare Part D? ▼
In 2023, Dennis Yun, MD wrote 34 Medicare Part D claims totaling $512 in drug costs for 15 beneficiaries.
Where is Dennis Yun, MD located? ▼
Dennis Yun, MD is located at 13160 MINDANAO WAY STE 300, Marina Del Rey, CA, 90292. Phone: (855) 985-7246.
What is Dennis Yun, MD's NPI number? ▼
Dennis Yun, MD's National Provider Identifier (NPI) is 1457414989, issued on 12/18/2006.
Does Dennis Yun, MD prescribe opioids? ▼
Yes, Dennis Yun, MD had 13 opioid claims in 2023 with an opioid prescribing rate of 38.2%.
How many Pain Medicine (Anesthesiology) Physician providers are there in the US? ▼
There are 4,032 Pain Medicine (Anesthesiology) Physician providers across 53 states in the US. The average Pain Medicine (Anesthesiology) Physician provider writes 1,657 Medicare Part D claims per year.
Does Dennis Yun, MD accept Medicare? ▼
Dennis Yun, MD appears in CMS Medicare data with 34 Part D claims and 15 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Dennis Yun, MD's credentials? ▼
Dennis Yun, MD's NPI is 1457414989 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.