NPI registry status
Active
2026 NPPES data Legal Medicine NPI 1063477792 MD
Verify on CMS → Gina Chan, MD
Legal Medicine in Wilmington, Delaware.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,065 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
2K
Medicare Part D claims · 211 beneficiaries · Legal Medicine avg: 3K
Generic prescribing
85%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Gina Chan, MD filed 1,924 Medicare Part D claims in 2023 as a Legal Medicine in Wilmington, Delaware, prescribing 85% generic.
- 2K
- Part D claims, 2023
- 85%
- generic prescribing
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.
Gina Chan, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
1,924 Top 16% higher than 84% 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 Gina Chan, MD?
Quality data not reportedPrimary specialty
Legal Medicine
Medicare Part D claims
1,924 32% vs specialty avg
Specialty distribution in Delaware
How Legal Medicine compares to other specialties among Delaware 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).
Gina Chan, MD appears in the CMS NPPES registry as a Legal Medicine provider holding MD credentials at 2700 SILVERSIDE RD, Wilmington, DE, 19810, with a listed phone of (302) 478-0400. NPI 1063477792 was issued on 04/18/2006.
Medicare Part D records for calendar year 2023 show 1,924 prescription claims written by this provider, covering 211 Medicare beneficiaries and totaling roughly $200K in drug spend, split 14% brand-name and 85% generic by claim count, with an opioid prescribing rate of 0.7%.
Legal Medicine is a narrow specialty nationwide, with 1,065 enrolled providers across 51 states and an average of 2,821 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 | 1063477792 |
|---|---|
| Specialty | Legal Medicine |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 04/18/2006 |
Brand vs generic prescribing mix · Typical
Gina Chan, MD - brand share 14.0%
Legal Medicine average
14% brand-name claims vs 85% generic, on 1,924 2023 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 2023.
1,924
Total Claims
$200K
Total Drug Cost
211
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 4,727
- Total Day Supply
- 138,297
- Brand vs Generic
- 14% brand / 85% generic
- Brand Drug Cost
- $163K
- Generic Drug Cost
- $37K
- Opioid Claims
- 13 (0.7% rate)
- Antibiotic Claims
- 42
Patient Demographics
- Average Patient Age
- 76.5 years
- Avg HCC Risk Score
- 0.87
- Gender Split
- 78% female / 22% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Gina Chan, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Rosuvastatin Calcium
Rosuvastatin Calcium
104 claims
- Atorvastatin Calcium
Atorvastatin Calcium
96 claims
- Levothyroxine Sodium
Levothyroxine Sodium
84 claims
- Pravastatin Sodium
Pravastatin Sodium
83 claims
- Amlodipine Besylate
Amlodipine Besylate
72 claims
- Omeprazole
Omeprazole
71 claims
- Metformin Hcl Er
Metformin Hcl Er
67 claims
- Losartan Potassium
Losartan Potassium
64 claims
| Drug | Claims |
|---|---|
| Rosuvastatin Calcium | 104 |
| Atorvastatin Calcium | 96 |
| Levothyroxine Sodium | 84 |
| Pravastatin Sodium | 83 |
| Amlodipine Besylate | 72 |
| Omeprazole | 71 |
| Metformin Hcl Er Metformin Hcl | 67 |
| Losartan Potassium | 64 |
| Lisinopril | 62 |
| Metoprolol Succinate | 44 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Legal Medicine Overview
How Gina Chan, MD fits within the Legal Medicine landscape nationally.
1,065
Legal Medicine Providers in US
51
States with Legal Medicine
2,821
Avg Claims per Provider
Gina Chan, MD's 1,924 claims are below the specialty average of 2,821.
Nearby Legal Medicine Providers in Delaware
Other clinicians with the same primary specialty enrolled in Delaware, drawn from the same CMS NPPES roster as Chan.
Dr. Jeffrey Cramer
MD
Wilmington, DE
Dr. Maria Diaz-Stanchi
M.D.
Wilmington, DE
Dr. Kristine Diehl
MD
Wilmington, DE
Dr. Charles Esham
MD
Wilmington, DE
Dr. Adrienne Perlman
M D
Wilmington, DE
Compare Legal Medicine 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 Delaware medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Legal Medicine 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.
Healthcare Guides
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How to Find a Doctor
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Delaware
Frequently Asked Questions
What is Gina Chan, MD's specialty? ▼
Gina Chan, MD specializes in Legal Medicine and practices in Wilmington, Delaware. Credentials: MD.
How much does Gina Chan, MD prescribe under Medicare Part D? ▼
In 2023, Gina Chan, MD wrote 1,924 Medicare Part D claims totaling $200K in drug costs for 211 beneficiaries.
Where is Gina Chan, MD located? ▼
Gina Chan, MD is located at 2700 SILVERSIDE RD, Wilmington, DE, 19810. Phone: (302) 478-0400.
What is Gina Chan, MD's NPI number? ▼
Gina Chan, MD's National Provider Identifier (NPI) is 1063477792, issued on 04/18/2006.
Does Gina Chan, MD prescribe more brand-name or generic drugs? ▼
Gina Chan, MD's prescribing is 14% brand-name and 85% generic drugs by claim count, with $163K in brand drug costs.
Does Gina Chan, MD prescribe opioids? ▼
Yes, Gina Chan, MD had 13 opioid claims in 2023 with an opioid prescribing rate of 0.7%.
How many Legal Medicine providers are there in the US? ▼
There are 1,065 Legal Medicine providers across 51 states in the US. The average Legal Medicine provider writes 2,821 Medicare Part D claims per year.
What drugs does Gina Chan, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Gina Chan, MD's most frequently prescribed drugs include Rosuvastatin Calcium, Atorvastatin Calcium, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Gina Chan, MD accept Medicare? ▼
Gina Chan, MD appears in CMS Medicare data with 1,924 Part D claims and 211 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Gina Chan, MD's credentials? ▼
Gina Chan, MD's NPI is 1063477792 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
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.