NPI registry status
Active
2026 NPPES data Endodontics NPI 1871638510 DDS
Verify on CMS → David Han, DDS
Endodontics in Valencia, 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 5,873 in Endodontics, 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
355
Medicare Part D claims · 173 beneficiaries · Endodontics avg: 116
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
David Han, DDS filed 355 Medicare Part D claims in 2023 as a Endodontics in Valencia, California.
- 355
- Part D claims, 2023
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.
David Han, DDS's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
355 Top 43% higher than 57% of 1,370,886 prescribers
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 David Han, DDS?
Quality data not reportedPrimary specialty
Endodontics
Medicare Part D claims
355 206% vs specialty avg
Specialty distribution in California
How Endodontics 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 Endodontics. 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).
David Han, DDS appears in the CMS NPPES registry as an Endodontics provider holding DDS credentials at 23838 W. VALENCIA BLVD #150, Valencia, CA, 91355, with a listed phone of (661) 254-1924. NPI 1871638510 was issued on 02/20/2007.
Medicare Part D records for calendar year 2023 show 355 prescription claims written by this provider, covering 173 Medicare beneficiaries and totaling roughly $2K in drug spend, with an opioid prescribing rate of 16.1%.
Endodontics is a mid-sized specialty nationwide, with 5,873 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
Provider Details
| NPI | 1871638510 |
|---|---|
| Specialty | Endodontics |
| Credentials | DDS |
| Gender | Male |
| NPI Issued | 02/20/2007 |
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 David Han, DDS. To verify David Han, DDS'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.
355
Total Claims
$2K
Total Drug Cost
173
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 355
- Total Day Supply
- 2,340
- Generic Drug Cost
- $2K
- Opioid Claims
- 57 (16.1% rate)
- Antibiotic Claims
- 141
Patient Demographics
- Average Patient Age
- 72.7 years
- Avg HCC Risk Score
- 1.00
- Gender Split
- 60% female / 40% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What David Han, DDS prescribes most
Top Medicare Part D drugs by claim count, 2023
- Chlorhexidine Gluc…
Chlorhexidine Gluconate
57 claims
- Amoxicillin
Amoxicillin
52 claims
- Ibuprofen
Ibuprofen
52 claims
- Azithromycin
Azithromycin
42 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
37 claims
- Acetaminophen-Code…
Acetaminophen-Codeine
31 claims
- Dexamethasone
Dexamethasone
24 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
24 claims
| Drug | Claims |
|---|---|
| Chlorhexidine Gluconate | 57 |
| Amoxicillin | 52 |
| Ibuprofen | 52 |
| Azithromycin | 42 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 37 |
| Acetaminophen-Codeine Acetaminophen With Codeine | 31 |
| Dexamethasone | 24 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 24 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Endodontics Overview
How David Han, DDS fits within the Endodontics landscape nationally.
5,873
Endodontics Providers in US
53
States with Endodontics
116
Avg Claims per Provider
David Han, DDS's 355 claims are above the specialty average of 116.
Nearby Endodontics Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Han.
Dr. Farah Abbassi
DMD, MSD
Santa Ana, CA
Dr. James Abbott
D.D.S., M.S.
Santa Rosa, CA
Dr. Adham Abdel Azim
BDS, DDS
San Francisco, CA
Dr. Thomas Acierno
D.D.S.
San Diego, CA
Dr. Dina Adami
DDS
Santa Monica, CA
Compare Endodontics nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Endodontics peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
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Frequently Asked Questions
What is David Han, DDS's specialty? ▼
David Han, DDS specializes in Endodontics and practices in Valencia, California. Credentials: DDS.
How much does David Han, DDS prescribe under Medicare Part D? ▼
In 2023, David Han, DDS wrote 355 Medicare Part D claims totaling $2K in drug costs for 173 beneficiaries.
Where is David Han, DDS located? ▼
David Han, DDS is located at 23838 W. VALENCIA BLVD #150, Valencia, CA, 91355. Phone: (661) 254-1924.
What is David Han, DDS's NPI number? ▼
David Han, DDS's National Provider Identifier (NPI) is 1871638510, issued on 02/20/2007.
Does David Han, DDS prescribe opioids? ▼
Yes, David Han, DDS had 57 opioid claims in 2023 with an opioid prescribing rate of 16.1%.
How many Endodontics providers are there in the US? ▼
There are 5,873 Endodontics providers across 53 states in the US. The average Endodontics provider writes 116 Medicare Part D claims per year.
What drugs does David Han, DDS prescribe most often? ▼
Based on 2023 Medicare Part D data, David Han, DDS's most frequently prescribed drugs include Chlorhexidine Gluconate, Amoxicillin, Ibuprofen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does David Han, DDS accept Medicare? ▼
David Han, DDS appears in CMS Medicare data with 355 Part D claims and 173 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify David Han, DDS's credentials? ▼
David Han, DDS's NPI is 1871638510 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
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
Compiled from official public sources by the PlainDoctor editorial team.
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.