NPI registry status
Active
2026 NPPES data Clinical Cardiac Electrophysiology Physician NPI 1194899021 MD
Verify on CMS → Sven Ender, MD
Clinical Cardiac Electrophysiology Physician in Annapolis, 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 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
2K
Medicare Part D claims · 189 beneficiaries · Clinical Cardiac Electrophysiology Physician avg: 2K
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
0/100
▼ 84 pts below national avg 83.5 · Penalty band
Industry payments
$524.09
13 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Sven Ender, MD reported a CMS MIPS final score of 0/100 - below the 83.5 national average - and filed 1,584 Medicare Part D claims in 2023.
- 0/100
- MIPS score · -83 vs avg
- 2K
- Part D claims, 2023
- 83%
- 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 Sven Ender, 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 1194899021), first enumerated 11/20/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,584 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 0/100 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
Industry payment transparency
$524.09 in reported industry payments (13 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 1194899021 · Clinical Cardiac Electrophysiology Physician
NPI-10 · ENUM-LEGACY · TAX-NARROW · MIPS-LOW · RX-MID · BOOK-THIN · PHOTO-FINISH
- NPI-10 1194899021
- ENUM-LEGACY 2006
- TAX-NARROW 1,580
- MIPS-LOW 0/100
- RX-MID 1,584
- BOOK-THIN 20 in Maryland
- PHOTO-FINISH Stephen Ackerman · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Ender · this pro… 0
Ender · this provider
0 MIPS pts
- Marc Girsky · hi… 0
Marc Girsky
0 MIPS pts
- Stephen Ackerman… 0
Stephen Ackerman
0 MIPS pts
- Henry Chen · near 0
Henry Chen
0 MIPS pts
- David Frazier · … 0
David Frazier
0 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Sven Ender, 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.
0 ≥ 0th percentile 0% 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 Sven Ender, 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, Sven Ender, MD writes more Part D claims than 62% of them and scores higher on MIPS quality than 0% - placing this provider in the high-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 Sven Ender, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Sven Ender, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - 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 Sven Ender, MD?
Below national averagePrimary specialty
Clinical Cardiac Electrophysiology Physician
Medicare Part D claims
1,584 1% vs specialty avg
MIPS final score
0/100 83.5 pts vs avg
Specialty distribution in Maryland
How Clinical Cardiac Electrophysiology Physician compares to other specialties among Maryland providers
Medicare quality performance, MIPS
Sven Ender, MD's 2023 MIPS final score plotted against the Clinical Cardiac Electrophysiology Physician national average
- MIPS Final Score
- 0/100
- 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 | 1194899021 |
|---|---|
| Specialty | Clinical Cardiac Electrophysiology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/20/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
0
Final Score
Measured-score avg: 83.5
0
Quality
Reporting: Individual
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 Sven Ender, MD. Source: openpaymentsdata.cms.gov.
Total received
$524
Largest payer
Medtronic, Inc.
Most common payment type
Food and Beverage
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 · Typical
Sven Ender, MD - brand share 17.0%
Clinical Cardiac Electrophysiology Physician average
17% brand-name claims vs 83% generic, on 1,584 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.
1,584
Total Claims
$304K
Total Drug Cost
189
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,957
- Total Day Supply
- 118,176
- Brand vs Generic
- 17% brand / 83% generic
- Brand Drug Cost
- $275K
- Generic Drug Cost
- $29K
- Antibiotic Claims
- 11
Patient Demographics
- Average Patient Age
- 76.6 years
- Avg HCC Risk Score
- 1.34
- Gender Split
- 52% female / 48% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Sven Ender, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Eliquis
Eliquis
151 claims
- Metoprolol Succinate
Metoprolol Succinate
124 claims
- Atorvastatin Calcium
Atorvastatin Calcium
113 claims
- Amlodipine Besylate
Amlodipine Besylate
93 claims
- Losartan Potassium
Losartan Potassium
88 claims
- Sotalol
Sotalol
84 claims
- Lisinopril
Lisinopril
82 claims
- Furosemide
Furosemide
79 claims
| Drug | Claims |
|---|---|
| Eliquis Apixaban | 151 |
| Metoprolol Succinate | 124 |
| Atorvastatin Calcium | 113 |
| Amlodipine Besylate | 93 |
| Losartan Potassium | 88 |
| Sotalol Sotalol Hcl | 84 |
| Lisinopril | 82 |
| Furosemide | 79 |
| Metoprolol Tartrate | 59 |
| Xarelto Rivaroxaban | 53 |
* 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 MD →
All providers in Maryland →
Compare specialties →
Clinical Cardiac Electrophysiology Physician Overview
How Sven Ender, 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
Sven Ender, MD's 1,584 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 Ender, both outside Maryland so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (0 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 Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Ender.
One of 20 Clinical Cardiac Electrophysiology Physician providers enrolled in Maryland, 5 are shown here.
Dr. Muhammad Amer
MD, MHS
Baltimore, MD
Dr. Helen Barold
M.D.
Rockville, MD
Dr. Andreas Barth
M.D.
Baltimore, MD
Dr. Jennifer Brady
M.D.
Baltimore, MD
Dr. Jonathan Chrispin
MD
Baltimore, MD
Compare Clinical Cardiac Electrophysiology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Sven Ender, MD's specialty? ▼
Sven Ender, MD specializes in Clinical Cardiac Electrophysiology Physician and practices in Annapolis, Maryland. Credentials: MD.
How much does Sven Ender, MD prescribe under Medicare Part D? ▼
In 2023, Sven Ender, MD wrote 1,584 Medicare Part D claims totaling $304K in drug costs for 189 beneficiaries.
What is Sven Ender, MD's Medicare quality score? ▼
Sven Ender, MD has a CMS MIPS Final Score of 0/100 (Quality: 0). 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 Sven Ender, MD located? ▼
Sven Ender, MD is located at 2002 MEDICAL PKWY, Annapolis, MD, 21401. Phone: (410) 224-2400.
What is Sven Ender, MD's NPI number? ▼
Sven Ender, MD's National Provider Identifier (NPI) is 1194899021, issued on 11/20/2006.
Does Sven Ender, MD prescribe more brand-name or generic drugs? ▼
Sven Ender, MD's prescribing is 17% brand-name and 83% generic drugs by claim count, with $275K 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 Sven Ender, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Sven Ender, MD's most frequently prescribed drugs include Eliquis, Metoprolol Succinate, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sven Ender, MD accept Medicare? ▼
Sven Ender, MD appears in CMS Medicare data with 1,584 Part D claims and 189 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sven Ender, MD's credentials? ▼
Sven Ender, MD's NPI is 1194899021 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.