NPI registry status
Active
2026 NPPES data Medical Toxicology (Emergency Medicine) Physician NPI 1366570962 D.O.
Verify on CMS → Katherine Prybys, D.O.
Medical Toxicology (Emergency Medicine) 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 228 in Medical Toxicology (Emergency Medicine) 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
35
Medicare Part D claims · 30 beneficiaries · Medical Toxicology (Emergency Medicine) Physician avg: 329
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Katherine Prybys, D.O. filed 35 Medicare Part D claims in 2023 as a Medical Toxicology (Emergency Medicine) Physician in Baltimore, Maryland.
- 35
- Part D claims, 2023
- ≥0th
- pct by Part D claim volume (lower-bound band)
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.
Katherine Prybys, D.O.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
35 ≥ 0th percentile 0% of 1,370,886 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Katherine Prybys, D.O. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Katherine Prybys, D.O.?
Quality data not reportedPrimary specialty
Medical Toxicology (Emergency Medicine) Physician
Medicare Part D claims
35 89% vs specialty avg
Specialty distribution in Maryland
How Medical Toxicology (Emergency Medicine) Physician compares to other specialties among Maryland 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 Medical Toxicology (Emergency Medicine) Physician. 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).
Katherine Prybys, D.O. appears in the CMS NPPES registry as a Medical Toxicology (Emergency Medicine) Physician provider holding D.O. credentials at 110 SOUTH PACA STREET, Baltimore, MD, 21201, with a listed phone of (410) 328-8025. NPI 1366570962 was issued on 03/02/2007.
Medicare Part D records for calendar year 2023 show 35 prescription claims written by this provider, covering 30 Medicare beneficiaries and totaling roughly $607 in drug spend.
Medical Toxicology (Emergency Medicine) Physician is a narrow specialty nationwide, with 228 enrolled providers across 39 states and an average of 329 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 | 1366570962 |
|---|---|
| Specialty | Medical Toxicology (Emergency Medicine) Physician |
| Credentials | D.O. |
| Gender | Female |
| NPI Issued | 03/02/2007 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
35
Total Claims
$607
Total Drug Cost
30
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 38
- Total Day Supply
- 612
- Brand Drug Cost
- $0
- Generic Drug Cost
- $607
Patient Demographics
- Average Patient Age
- 71.5 years
- Avg HCC Risk Score
- 1.90
- Gender Split
- 53% female / 47% male
More Medical Toxicology (Emergency Medicine) Physician in MD →
All providers in Maryland →
Compare specialties →
Medical Toxicology (Emergency Medicine) Physician Overview
How Katherine Prybys, D.O. fits within the Medical Toxicology (Emergency Medicine) Physician landscape nationally.
228
Medical Toxicology (Emergency Medicine) Physician Providers in US
39
States with Medical Toxicology (Emergency Medicine) Physician
329
Avg Claims per Provider
Katherine Prybys, D.O.'s 35 claims are below the specialty average of 329.
Nearby Medical Toxicology (Emergency Medicine) Physician Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Prybys.
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 Toxicology (Emergency Medicine) 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.
Healthcare Guides
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Medical Specialties Explained
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Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
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Frequently Asked Questions
What is Katherine Prybys, D.O.'s specialty? ▼
Katherine Prybys, D.O. specializes in Medical Toxicology (Emergency Medicine) Physician and practices in Baltimore, Maryland. Credentials: D.O..
How much does Katherine Prybys, D.O. prescribe under Medicare Part D? ▼
In 2023, Katherine Prybys, D.O. wrote 35 Medicare Part D claims totaling $607 in drug costs for 30 beneficiaries.
Where is Katherine Prybys, D.O. located? ▼
Katherine Prybys, D.O. is located at 110 SOUTH PACA STREET, Baltimore, MD, 21201. Phone: (410) 328-8025.
What is Katherine Prybys, D.O.'s NPI number? ▼
Katherine Prybys, D.O.'s National Provider Identifier (NPI) is 1366570962, issued on 03/02/2007.
How many Medical Toxicology (Emergency Medicine) Physician providers are there in the US? ▼
There are 228 Medical Toxicology (Emergency Medicine) Physician providers across 39 states in the US. The average Medical Toxicology (Emergency Medicine) Physician provider writes 329 Medicare Part D claims per year.
Does Katherine Prybys, D.O. accept Medicare? ▼
Katherine Prybys, D.O. appears in CMS Medicare data with 35 Part D claims and 30 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Katherine Prybys, D.O.'s credentials? ▼
Katherine Prybys, D.O.'s NPI is 1366570962 with credentials D.O.. 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
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.