NPI registry status
Active
2026 NPPES data Clinical Cardiac Electrophysiology Physician NPI 1558378331 MD
Verify on CMS → Allison Warren, MD
Clinical Cardiac Electrophysiology Physician in Washington, District of Columbia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,580 in Clinical Cardiac Electrophysiology 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
344
Medicare Part D claims · 122 beneficiaries · Clinical Cardiac Electrophysiology Physician avg: 2K
Generic prescribing
67%
generic claims · 33% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
83.4/100
▼ 0 pts below national avg 83.5 · Above neutral
Industry payments
$981.59
6 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Allison Warren, MD reported a CMS MIPS final score of 83.4/100 - below the 83.5 national average - and filed 344 Medicare Part D claims in 2023.
- 83.4/100
- MIPS score · 0 vs avg
- 344
- Part D claims, 2023
- 67%
- 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.
Federal trust snapshot
What official records show about Allison Warren, MD
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1558378331), first enumerated 08/02/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 344 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 83.4/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$981.59 in reported industry payments (6 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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 1558378331 · Clinical Cardiac Electrophysiology Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · MIPS-INLINE · RX-LIGHT · BOOK-THIN · PHOTO-FINISH
- NPI-10 1558378331
- ENUM-LEGACY 2006
- TAX-NARROW 1,580
- MIPS-INLINE 83.4/100
- RX-LIGHT 344
- BOOK-THIN 7 in District of Columbia
- PHOTO-FINISH John Shin · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Luciano Amado · …
Luciano Amado
83.3 MIPS pts
- Warren · this pr…
Warren · this provider
83.4 MIPS pts
- John Shin · near
John Shin
83.4 MIPS pts
- Adrian Almquist …
Adrian Almquist
83.5 MIPS pts
- David Kenigsberg…
David Kenigsberg
83.5 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Allison Warren, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
83 ≥ 39th percentile 39% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Allison Warren, MD sits
This provider among clinical cardiac electrophysiology physician peers
Across the 591 clinical cardiac electrophysiology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Allison Warren, MD writes more Part D claims than 20% of them and scores higher on MIPS quality than 35% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one clinical cardiac electrophysiology physician peer from a representative sample of 60; the gold marker is Allison Warren, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Allison Warren, MD 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 Allison Warren, MD?
Near national averagePrimary specialty
Clinical Cardiac Electrophysiology Physician
Medicare Part D claims
344 78% vs specialty avg
MIPS final score
83.4/100 0.1 pts vs avg
Specialty distribution in District of Columbia
How Clinical Cardiac Electrophysiology Physician compares to other specialties among District of Columbia providers
Medicare quality performance, MIPS
Allison Warren, MD's 2023 MIPS final score plotted against the Clinical Cardiac Electrophysiology Physician national average
- MIPS Final Score
- 83.4/100
- vs 83.5 national avg · 2023 performance year
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 | 1558378331 |
|---|---|
| Specialty | Clinical Cardiac Electrophysiology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 08/02/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
83.4224
Final Score
Measured-score avg: 83.5
77.9282
Quality
66.8131
Cost
100
Promoting Interoperability
Reporting: Group practice
Hospital and facility affiliations
Facilities where Allison Warren, 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.
Cardiocare LLC
Chevy Chase, 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).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Allison Warren, MD. Source: openpaymentsdata.cms.gov.
Total received
$982
Largest payer
Abbott Laboratories
Most common payment type
Travel and Lodging
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Above average
Allison Warren, MD - brand share 33.0%
Clinical Cardiac Electrophysiology Physician average
33% brand-name claims vs 67% generic, on 344 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.
344
Total Claims
$180K
Total Drug Cost
122
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 997
- Total Day Supply
- 29,905
- Brand vs Generic
- 33% brand / 67% generic
- Brand Drug Cost
- $170K
- Generic Drug Cost
- $11K
Patient Demographics
- Average Patient Age
- 76.1 years
- Avg HCC Risk Score
- 1.40
- Gender Split
- 42% female / 58% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Allison Warren, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Eliquis
Eliquis
79 claims
- Metoprolol Succinate
Metoprolol Succinate
50 claims
- Xarelto 19
Xarelto
19 claims
- Rosuvastatin Calcium 17
Rosuvastatin Calcium
17 claims
- Sotalol 17
Sotalol
17 claims
- Carvedilol 16
Carvedilol
16 claims
- Losartan Potassium 14
Losartan Potassium
14 claims
- Flecainide Acetate 13
Flecainide Acetate
13 claims
| Drug | Claims |
|---|---|
| Eliquis Apixaban | 79 |
| Metoprolol Succinate | 50 |
| Xarelto Rivaroxaban | 19 |
| Rosuvastatin Calcium | 17 |
| Sotalol Sotalol Hcl | 17 |
| Carvedilol | 16 |
| Losartan Potassium | 14 |
| Flecainide Acetate | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Clinical Cardiac Electrophysiology Physician in DC →
All providers in District of Columbia →
Compare specialties →
Clinical Cardiac Electrophysiology Physician Overview
How Allison Warren, MD fits within the Clinical Cardiac Electrophysiology Physician landscape nationally.
1,580
Clinical Cardiac Electrophysiology Physician Providers in US
52
States with Clinical Cardiac Electrophysiology Physician
1,596
Avg Claims per Provider
Allison Warren, MD's 344 claims are below the specialty average of 1,596.
Nationwide Clinical Cardiac Electrophysiology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Warren, both outside District of Columbia so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (83.4 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Clinical Cardiac Electrophysiology Physician Providers in District of Columbia
Other clinicians with the same primary specialty enrolled in District of Columbia, drawn from the same CMS NPPES roster as Warren.
One of 7 Clinical Cardiac Electrophysiology Physician providers enrolled in District of Columbia, 5 are shown here.
Dr. Brian Lewis
M.D.
Washington, DC
Dr. Jay Mazel
M.D.
Washington, DC
Dr. Hans Moore
MD
Washington, DC
Dr. Rohan Patel
M.D.
Washington, DC
Dr. Allen Solomon
M.D.
Washington, DC
Compare Clinical Cardiac Electrophysiology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Allison Warren, MD's specialty? ▼
Allison Warren, MD specializes in Clinical Cardiac Electrophysiology Physician and practices in Washington, District of Columbia. Credentials: MD.
How much does Allison Warren, MD prescribe under Medicare Part D? ▼
In 2023, Allison Warren, MD wrote 344 Medicare Part D claims totaling $180K in drug costs for 122 beneficiaries.
What is Allison Warren, MD's Medicare quality score? ▼
Allison Warren, MD has a CMS MIPS Final Score of 83.4/100 (Quality: 77.9, Cost: 66.8). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Allison Warren, MD located? ▼
Allison Warren, MD is located at 900 17TH ST NW STE 1250, Washington, DC, 20006. Phone: (301) 656-5050.
What is Allison Warren, MD's NPI number? ▼
Allison Warren, MD's National Provider Identifier (NPI) is 1558378331, issued on 08/02/2006.
Does Allison Warren, MD prescribe more brand-name or generic drugs? ▼
Allison Warren, MD's prescribing is 33% brand-name and 67% generic drugs by claim count, with $170K in brand drug costs.
How many Clinical Cardiac Electrophysiology Physician providers are there in the US? ▼
There are 1,580 Clinical Cardiac Electrophysiology Physician providers across 52 states in the US. The average Clinical Cardiac Electrophysiology Physician provider writes 1,596 Medicare Part D claims per year.
What drugs does Allison Warren, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Allison Warren, MD's most frequently prescribed drugs include Eliquis, Metoprolol Succinate, Xarelto. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Allison Warren, MD accept Medicare? ▼
Allison Warren, MD appears in CMS Medicare data with 344 Part D claims and 122 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Allison Warren, MD's credentials? ▼
Allison Warren, MD's NPI is 1558378331 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
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.