NPI registry status
Active
2026 NPPES data Legal Medicine NPI 1215959796 M.D.
Verify on CMS → Trach Dang, M.D.
Legal Medicine in San Jose, 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 1,045 in Legal Medicine, 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
6K
Medicare Part D claims · 280 beneficiaries · Legal Medicine avg: 3K
Generic prescribing
84%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Trach Dang, M.D. filed 5,888 Medicare Part D claims in 2024 as a Legal Medicine in San Jose, California, prescribing 84% generic.
- 6K
- Part D claims, 2024
- 84%
- generic prescribing
- ≥95th
- 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.
Federal trust snapshot
What official records show about Trach Dang, M.D.
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1215959796), first enumerated 07/24/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 5,888 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Trach Dang, M.D.'s individual license status. Verify directly with the state medical board.
Source: MBC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1215959796 · Legal Medicine
NPI-10 · ENUM-LEGACY · TAX-NARROW · RX-MID · BOOK-THIN · PHOTO-ENUM
- NPI-10 1215959796
- ENUM-LEGACY 2006
- TAX-NARROW 1,045
- RX-MID 5,888
- BOOK-THIN 142 in California
- PHOTO-ENUM Randal Lewis, M.D. · 2006
Trach Dang, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
5,888 ≥ 95th percentile 95% of 1,416,883 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 · 2024
What does the federal data show about Trach Dang, M.D.?
Quality data not reportedPrimary specialty
Legal Medicine
Medicare Part D claims
5,888 109% vs specialty avg
Specialty distribution in California
How Legal Medicine 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 Legal Medicine. 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 | 1215959796 |
|---|---|
| Specialty | Legal Medicine |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 07/24/2006 |
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 Trach Dang, M.D.. To verify Trach Dang, M.D.'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.
Brand vs generic prescribing mix · Typical
Trach Dang, M.D. - brand share 14.0%
Legal Medicine average
14% brand-name claims vs 84% generic, on 5,888 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
5,888
Total Claims
$517K
Total Drug Cost
280
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 11,770.733
- Total Day Supply
- 342,361
- Brand vs Generic
- 14% brand / 84% generic
- Brand Drug Cost
- $440K
- Generic Drug Cost
- $77K
- Opioid Claims
- 13 (0.2% rate)
- Antibiotic Claims
- 129
Patient Demographics
- Average Patient Age
- 73.7 years
- Avg HCC Risk Score
- 0.92
- Gender Split
- 49% female / 51% male
- Age Distribution
- <65: 15, 65-74: 148, 75-84: 78, 85+: 39
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Trach Dang, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Amlodipine Besylate
Amlodipine Besylate
415 claims
- Losartan Potassium
Losartan Potassium
406 claims
- Atorvastatin Calcium
Atorvastatin Calcium
405 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
366 claims
- Diclofenac Sodium
Diclofenac Sodium
239 claims
- Metformin Hcl
Metformin Hcl
225 claims
- Alendronate Sodium
Alendronate Sodium
219 claims
- Tradjenta 159
Tradjenta
159 claims
| Drug | Claims |
|---|---|
| Amlodipine Besylate | 415 |
| Losartan Potassium | 406 |
| Atorvastatin Calcium | 405 |
| Triamcinolone Acetonide | 366 |
| Diclofenac Sodium | 239 |
| Metformin Hcl | 225 |
| Alendronate Sodium | 219 |
| Tradjenta Linagliptin | 159 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 152 |
| Tamsulosin Hcl | 150 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Legal Medicine Overview
How Trach Dang, M.D. fits within the Legal Medicine landscape nationally.
1,045
Legal Medicine Providers in US
50
States with Legal Medicine
2,818
Avg Claims per Provider
Trach Dang, M.D.'s 5,888 claims are above the specialty average of 2,818.
Nationwide Legal Medicine peers with similar MIPS or enrollment year
Two federal-record peer sets for Dang, 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 Legal Medicine Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Dang.
One of 142 Legal Medicine providers enrolled in California, 5 are shown here.
Dr. David Aframian
MD
Santa Monica, CA
Dr. Flory Aguilar-Onderdonk
M.D.
Irvine, CA
Dr. Mazin Al-Hakeem
M.D
Newport Beach, CA
Dr. Ann Allen
MD
San Francisco, CA
Dr. James Anastasi
M.D.
Santa Monica, CA
Compare Legal Medicine nationally: see state-by-state distribution →
Frequently Asked Questions
What is Trach Dang, M.D.'s specialty? ▼
Trach Dang, M.D. specializes in Legal Medicine and practices in San Jose, California. Credentials: M.D..
How much does Trach Dang, M.D. prescribe under Medicare Part D? ▼
In 2024, Trach Dang, M.D. wrote 5,888 Medicare Part D claims totaling $517K in drug costs for 280 beneficiaries.
Where is Trach Dang, M.D. located? ▼
Trach Dang, M.D. is located at 2114 SENTER RD STE 24, San Jose, CA, 95112. Phone: (408) 293-2188.
What is Trach Dang, M.D.'s NPI number? ▼
Trach Dang, M.D.'s National Provider Identifier (NPI) is 1215959796, issued on 07/24/2006.
Does Trach Dang, M.D. prescribe more brand-name or generic drugs? ▼
Trach Dang, M.D.'s prescribing is 14% brand-name and 84% generic drugs by claim count, with $440K in brand drug costs.
Does Trach Dang, M.D. prescribe opioids? ▼
Yes, Trach Dang, M.D. had 13 opioid claims in 2024 with an opioid prescribing rate of 0.2%.
How many Legal Medicine providers are there in the US? ▼
There are 1,045 Legal Medicine providers across 50 states in the US. The average Legal Medicine provider writes 2,818 Medicare Part D claims per year.
What drugs does Trach Dang, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Trach Dang, M.D.'s most frequently prescribed drugs include Amlodipine Besylate, Losartan Potassium, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Trach Dang, M.D. accept Medicare? ▼
Trach Dang, M.D. appears in CMS Medicare data with 5,888 Part D claims and 280 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Trach Dang, M.D.'s credentials? ▼
Trach Dang, M.D.'s NPI is 1215959796 with credentials 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
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 (2024). 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 August 2026 (NPPES) / 2024 (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 August 2026.