NPI registry status
Active
2026 NPPES data Medical Oncology Physician NPI 1619372554
Verify on CMS → Diane Reyes-Dagher
Medical Oncology Physician in Baltimore, Maryland.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 3,815 in Medical Oncology 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
190
Medicare Part D claims · 26 beneficiaries · Medical Oncology Physician avg: 689
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
74.4/100
▼ 9 pts below national avg 83.1 · Mid-tier
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
Diane Reyes-Dagher reported a CMS MIPS final score of 74.4/100 - below the 83.1 national average - and filed 190 Medicare Part D claims in 2023.
- 74.4/100
- MIPS score · -9 vs avg
- 190
- Part D claims, 2023
- 85%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Diane Reyes-Dagher's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
74 12th percentile higher than 12% 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 Diane Reyes-Dagher sits
This provider among medical oncology physician peers
Across the 1,527 medical oncology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Diane Reyes-Dagher writes more Part D claims than 25% of them and scores higher on MIPS quality than 6% - placing this provider in the lower-volume, lower-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 medical oncology physician peer from a representative sample of 60; the gold marker is Diane Reyes-Dagher. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Diane Reyes-Dagher practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Diane Reyes-Dagher?
Below national averagePrimary specialty
Medical Oncology Physician
Medicare Part D claims
190 72% vs specialty avg
MIPS final score
74.4/100 8.7 pts vs avg
Specialty distribution in Maryland
How Medical Oncology Physician compares to other specialties among Maryland providers
Medicare quality performance, MIPS
Diane Reyes-Dagher's 2023 MIPS final score plotted against the Medical Oncology Physician national average
- MIPS Final Score
- 74.4/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Medical Oncology Physician) - 74.4/100 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).
Diane Reyes-Dagher appears in the CMS NPPES registry as a Medical Oncology Physician provider at 600 N WOLFE ST, Baltimore, MD, 21287, with a listed phone of (410) 502-3137. NPI 1619372554 was issued on 11/04/2014.
Medicare Part D records for calendar year 2023 show 190 prescription claims written by this provider, covering 26 Medicare beneficiaries and totaling roughly $168K in drug spend, split 15% brand-name and 85% generic by claim count, with an opioid prescribing rate of 13.2%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 74.4/100 for the 2023 performance year (Quality 64.7, Cost 52.4), compared with the national average of 83.1.
Medical Oncology Physician is a narrow specialty nationwide, with 3,815 enrolled providers across 53 states and an average of 689 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 | 1619372554 |
|---|---|
| Specialty | Medical Oncology Physician |
| Gender | Female |
| NPI Issued | 11/04/2014 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
74.3962
Final Score
Avg: 83.1
64.7185
Quality
52.4354
Cost
97
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Diane Reyes-Dagher 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.
Johns Hopkins University
Baltimore, MD
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
Diane Reyes-Dagher - brand share 15.0%
Medical Oncology Physician average
15% brand-name claims vs 85% generic, on 190 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.
190
Total Claims
$168K
Total Drug Cost
26
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 348
- Total Day Supply
- 9,937
- Brand vs Generic
- 15% brand / 85% generic
- Brand Drug Cost
- $128K
- Generic Drug Cost
- $40K
- Opioid Claims
- 25 (13.2% rate)
Patient Demographics
- Average Patient Age
- 72.4 years
- Avg HCC Risk Score
- 1.76
- Gender Split
- 0% female / 100% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Diane Reyes-Dagher prescribes most
Top Medicare Part D drugs by claim count, 2023
- Bicalutamide
Bicalutamide
39 claims
- Finasteride
Finasteride
31 claims
- Prednisone
Prednisone
30 claims
- Abiraterone Acetate
Abiraterone Acetate
22 claims
- Oxycodone Hcl 13
Oxycodone Hcl
13 claims
- Orgovyx 12
Orgovyx
12 claims
- Xtampza Er 11
Xtampza Er
11 claims
| Drug | Claims |
|---|---|
| Bicalutamide | 39 |
| Finasteride | 31 |
| Prednisone | 30 |
| Abiraterone Acetate | 22 |
| Oxycodone Hcl | 13 |
| Orgovyx Relugolix | 12 |
| Xtampza Er Oxycodone Myristate | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Medical Oncology Physician Overview
How Diane Reyes-Dagher fits within the Medical Oncology Physician landscape nationally.
3,815
Medical Oncology Physician Providers in US
53
States with Medical Oncology Physician
689
Avg Claims per Provider
Diane Reyes-Dagher's 190 claims are below the specialty average of 689.
Nearby Medical Oncology Physician Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Reyes-Dagher.
Dr. Jeffrey Abrams
M.D
Clarksville, MD
Dr. Ellery Altshuler
MD
Baltimore, MD
Dr. Richard Ambinder
M.D.
Baltimore, MD
Dr. Amir Ameri
MD
Baltimore, MD
Dr. Valsamo Anagnostou
MD-PHD
Baltimore, MD
Compare Medical Oncology Physician 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 Maryland medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Medical Oncology Physician 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 Diane Reyes-Dagher's specialty? ▼
Diane Reyes-Dagher specializes in Medical Oncology Physician and practices in Baltimore, Maryland.
How much does Diane Reyes-Dagher prescribe under Medicare Part D? ▼
In 2023, Diane Reyes-Dagher wrote 190 Medicare Part D claims totaling $168K in drug costs for 26 beneficiaries.
What is Diane Reyes-Dagher's Medicare quality score? ▼
Diane Reyes-Dagher has a CMS MIPS Final Score of 74.4/100 (Quality: 64.7, Cost: 52.4). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Diane Reyes-Dagher located? ▼
Diane Reyes-Dagher is located at 600 N WOLFE ST, Baltimore, MD, 21287. Phone: (410) 502-3137.
What is Diane Reyes-Dagher's NPI number? ▼
Diane Reyes-Dagher's National Provider Identifier (NPI) is 1619372554, issued on 11/04/2014.
Does Diane Reyes-Dagher prescribe more brand-name or generic drugs? ▼
Diane Reyes-Dagher's prescribing is 15% brand-name and 85% generic drugs by claim count, with $128K in brand drug costs.
Does Diane Reyes-Dagher prescribe opioids? ▼
Yes, Diane Reyes-Dagher had 25 opioid claims in 2023 with an opioid prescribing rate of 13.2%.
How many Medical Oncology Physician providers are there in the US? ▼
There are 3,815 Medical Oncology Physician providers across 53 states in the US. The average Medical Oncology Physician provider writes 689 Medicare Part D claims per year.
What drugs does Diane Reyes-Dagher prescribe most often? ▼
Based on 2023 Medicare Part D data, Diane Reyes-Dagher's most frequently prescribed drugs include Bicalutamide, Finasteride, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Diane Reyes-Dagher accept Medicare? ▼
Diane Reyes-Dagher appears in CMS Medicare data with 190 Part D claims and 26 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Diane Reyes-Dagher's credentials? ▼
Diane Reyes-Dagher's NPI is 1619372554. 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.