NPI registry status
Active
2026 NPPES data Personal Emergency Response Attendant NPI 1336356294 M.D.
Verify on CMS → Karl Markuszka, M.D.
Personal Emergency Response Attendant in Hartford, Connecticut.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 829 in Personal Emergency Response Attendant, 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
143
Medicare Part D claims · 99 beneficiaries · Personal Emergency Response Attendant avg: 996
Generic prescribing
85%
generic claims · 15% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$20
1 payments · CMS Open Payments (Sunshine Act)
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
Karl Markuszka, M.D. filed 143 Medicare Part D claims in 2023 as a Personal Emergency Response Attendant in Hartford, Connecticut, prescribing 85% generic.
- 143
- Part D claims, 2023
- 85%
- generic prescribing
- $20
- industry payments (Sunshine Act)
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.
Karl Markuszka, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
143 35th percentile higher than 35% 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 Karl Markuszka, M.D.?
Quality data not reportedPrimary specialty
Personal Emergency Response Attendant
Medicare Part D claims
143 86% vs specialty avg
Specialty distribution in Connecticut
How Personal Emergency Response Attendant compares to other specialties among Connecticut 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 Personal Emergency Response Attendant. 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).
Karl Markuszka, M.D. appears in the CMS NPPES registry as a Personal Emergency Response Attendant provider holding M.D. credentials at 114 WOODLAND ST, Hartford, CT, 06105, with a listed phone of (860) 714-4001. NPI 1336356294 was issued on 05/17/2007.
Medicare Part D records for calendar year 2023 show 143 prescription claims written by this provider, covering 99 Medicare beneficiaries and totaling roughly $4K in drug spend, split 15% brand-name and 85% generic by claim count, with an opioid prescribing rate of 25.2%.
Personal Emergency Response Attendant is a narrow specialty nationwide, with 829 enrolled providers across 48 states and an average of 996 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 | 1336356294 |
|---|---|
| Specialty | Personal Emergency Response Attendant |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 05/17/2007 |
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 Karl Markuszka, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$20
Largest payer
CSL Behring
Most common payment type
Education
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
Karl Markuszka, M.D. - brand share 15.0%
Personal Emergency Response Attendant average
15% brand-name claims vs 85% generic, on 143 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.
143
Total Claims
$4K
Total Drug Cost
99
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 147
- Total Day Supply
- 1,980
- Brand vs Generic
- 15% brand / 85% generic
- Brand Drug Cost
- $2K
- Generic Drug Cost
- $1K
- Opioid Claims
- 36 (25.2% rate)
- Antibiotic Claims
- 29
Patient Demographics
- Average Patient Age
- 70.3 years
- Avg HCC Risk Score
- 2.43
- Gender Split
- 59% female / 41% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 12 |
| Amlodipine Besylate | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Personal Emergency Response Attendant in CT →
All providers in Connecticut →
Compare specialties →
Personal Emergency Response Attendant Overview
How Karl Markuszka, M.D. fits within the Personal Emergency Response Attendant landscape nationally.
829
Personal Emergency Response Attendant Providers in US
48
States with Personal Emergency Response Attendant
996
Avg Claims per Provider
Karl Markuszka, M.D.'s 143 claims are below the specialty average of 996.
Nearby Personal Emergency Response Attendant Providers in Connecticut
Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as Markuszka.
Dr. Brian Baxt
MD
Putnam, CT
Dr. Tecshana Blackwood
PA
New Haven, CT
Dr. John Cacace
MD
Bridgeport, CT
Dr. Edward Eisenberg
MD
Norwalk, CT
Dr. Guillermo Katigbak
MD
Bridgeport, CT
Compare Personal Emergency Response Attendant 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 Connecticut medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Personal Emergency Response Attendant 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 Karl Markuszka, M.D.'s specialty? ▼
Karl Markuszka, M.D. specializes in Personal Emergency Response Attendant and practices in Hartford, Connecticut. Credentials: M.D..
How much does Karl Markuszka, M.D. prescribe under Medicare Part D? ▼
In 2023, Karl Markuszka, M.D. wrote 143 Medicare Part D claims totaling $4K in drug costs for 99 beneficiaries.
Where is Karl Markuszka, M.D. located? ▼
Karl Markuszka, M.D. is located at 114 WOODLAND ST, Hartford, CT, 06105. Phone: (860) 714-4001.
What is Karl Markuszka, M.D.'s NPI number? ▼
Karl Markuszka, M.D.'s National Provider Identifier (NPI) is 1336356294, issued on 05/17/2007.
Does Karl Markuszka, M.D. prescribe more brand-name or generic drugs? ▼
Karl Markuszka, M.D.'s prescribing is 15% brand-name and 85% generic drugs by claim count, with $2K in brand drug costs.
Does Karl Markuszka, M.D. prescribe opioids? ▼
Yes, Karl Markuszka, M.D. had 36 opioid claims in 2023 with an opioid prescribing rate of 25.2%.
How many Personal Emergency Response Attendant providers are there in the US? ▼
There are 829 Personal Emergency Response Attendant providers across 48 states in the US. The average Personal Emergency Response Attendant provider writes 996 Medicare Part D claims per year.
What drugs does Karl Markuszka, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Karl Markuszka, M.D.'s most frequently prescribed drugs include Oxycodone-Acetaminophen, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Karl Markuszka, M.D. accept Medicare? ▼
Karl Markuszka, M.D. appears in CMS Medicare data with 143 Part D claims and 99 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Karl Markuszka, M.D.'s credentials? ▼
Karl Markuszka, M.D.'s NPI is 1336356294 with credentials M.D.. 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.