NPI registry status
Active
2026 NPPES data Legal Medicine NPI 1245213933 MD
Verify on CMS → Kristine Diehl, 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
6K
Medicare Part D claims · 562 beneficiaries · Legal Medicine avg: 3K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
90.4/100
▲ 7 pts above national avg 83.1 · Exceptional
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
Kristine Diehl, MD reported a CMS MIPS final score of 90.4/100 - above the 83.1 national average - and filed 5,631 Medicare Part D claims in 2023.
- 90.4/100
- MIPS score · +7 vs avg
- 6K
- Part D claims, 2023
- 89%
- 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.
Kristine Diehl, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
90 Top 40% higher than 60% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023
Where Kristine Diehl, MD sits
This provider among legal medicine peers
Across the 93 legal medicine providers who report both Medicare Part D prescribing and a MIPS quality score, Kristine Diehl, MD writes more Part D claims than 77% of them and scores higher on MIPS quality than 61% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one legal medicine peer from a representative sample of 60; the gold marker is Kristine Diehl, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Kristine Diehl, MD?
High performer (top quartile)Primary specialty
Legal Medicine
Medicare Part D claims
5,631 100% vs specialty avg
MIPS final score
90.4/100 7.3 pts vs avg
Specialty distribution in Delaware
How Legal Medicine compares to other specialties among Delaware providers
Medicare quality performance, MIPS
Kristine Diehl, MD's 2023 MIPS final score plotted against the Legal Medicine national average
- MIPS Final Score
- 90.4/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Legal Medicine) - 90.4/100 vs national avg 83.1
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).
Kristine Diehl, 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) 478-8421. NPI 1245213933 was issued on 11/28/2005.
Medicare Part D records for calendar year 2023 show 5,631 prescription claims written by this provider, covering 562 Medicare beneficiaries and totaling roughly $438K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 1.6%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 90.4/100 for the 2023 performance year (Quality 100, Cost 68), compared with the national average of 83.1.
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 | 1245213933 |
|---|---|
| Specialty | Legal Medicine |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 11/28/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
90.4121
Final Score
Avg: 83.1
100
Quality
68.0403
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Kristine Diehl, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Delaware Family Care Associates
Wilmington, DE
Novacare Outpatient Rehabilitation East, Inc.
Collegeville, PA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Brand vs generic prescribing mix · Typical
Kristine Diehl, MD - brand share 11.0%
Legal Medicine average
11% brand-name claims vs 89% generic, on 5,631 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.
5,631
Total Claims
$438K
Total Drug Cost
562
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 13,176
- Total Day Supply
- 386,386
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $334K
- Generic Drug Cost
- $103K
- Opioid Claims
- 92 (1.6% rate)
- Antibiotic Claims
- 83
Patient Demographics
- Average Patient Age
- 74.5 years
- Avg HCC Risk Score
- 0.75
- Gender Split
- 77% female / 23% male
- Age Distribution
- <65: 12, 65-74: 294, 75-84: 203, 85+: 53
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Kristine Diehl, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
669 claims
- Levothyroxine Sodium
Levothyroxine Sodium
281 claims
- Trazodone Hcl 248
Trazodone Hcl
248 claims
- Amlodipine Besylate 244
Amlodipine Besylate
244 claims
- Rosuvastatin Calcium 158
Rosuvastatin Calcium
158 claims
- Valsartan 157
Valsartan
157 claims
- Metoprolol Succinate 149
Metoprolol Succinate
149 claims
- Lisinopril 143
Lisinopril
143 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 669 |
| Levothyroxine Sodium | 281 |
| Trazodone Hcl | 248 |
| Amlodipine Besylate | 244 |
| Rosuvastatin Calcium | 158 |
| Valsartan | 157 |
| Metoprolol Succinate | 149 |
| Lisinopril | 143 |
| Escitalopram Oxalate | 117 |
| Omeprazole | 117 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Legal Medicine Overview
How Kristine Diehl, 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
Kristine Diehl, MD's 5,631 claims are above 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 Diehl.
Dr. Gina Chan
MD
Wilmington, DE
Dr. Jeffrey Cramer
MD
Wilmington, DE
Dr. Maria Diaz-Stanchi
M.D.
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.
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Frequently Asked Questions
What is Kristine Diehl, MD's specialty? ▼
Kristine Diehl, MD specializes in Legal Medicine and practices in Wilmington, Delaware. Credentials: MD.
How much does Kristine Diehl, MD prescribe under Medicare Part D? ▼
In 2023, Kristine Diehl, MD wrote 5,631 Medicare Part D claims totaling $438K in drug costs for 562 beneficiaries.
What is Kristine Diehl, MD's Medicare quality score? ▼
Kristine Diehl, MD has a CMS MIPS Final Score of 90.4/100 (Quality: 100, Cost: 68). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Kristine Diehl, MD located? ▼
Kristine Diehl, MD is located at 2700 SILVERSIDE RD, Wilmington, DE, 19810. Phone: (302) 478-8421.
What is Kristine Diehl, MD's NPI number? ▼
Kristine Diehl, MD's National Provider Identifier (NPI) is 1245213933, issued on 11/28/2005.
Does Kristine Diehl, MD prescribe more brand-name or generic drugs? ▼
Kristine Diehl, MD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $334K in brand drug costs.
Does Kristine Diehl, MD prescribe opioids? ▼
Yes, Kristine Diehl, MD had 92 opioid claims in 2023 with an opioid prescribing rate of 1.6%.
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 Kristine Diehl, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Kristine Diehl, MD's most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Trazodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kristine Diehl, MD accept Medicare? ▼
Kristine Diehl, MD appears in CMS Medicare data with 5,631 Part D claims and 562 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kristine Diehl, MD's credentials? ▼
Kristine Diehl, MD's NPI is 1245213933 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.