2026 NPPES data Medical Toxicology (Emergency Medicine) Physician NPI 1366570962 D.O.
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KATHERINE PRYBYS, D.O.

Medical Toxicology (Emergency Medicine) Physician in BALTIMORE, Maryland. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
35
Medicare Part D claims · 30 beneficiaries · Medical Toxicology (Emergency Medicine) Physician avg: 329

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

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 higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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

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 reported

NPI registry status

Active

Issued 03/02/2007

NPI 1366570962

Primary specialty

Medical Toxicology (Emergency Medicine) Physician

Rare

226 US NPIs in this specialty

Medicare Part D claims

35 89% vs specialty avg

2023 prescription claims

Specialty avg: 329

Specialty distribution in Maryland

How Medical Toxicology (Emergency Medicine) Physician compares to other specialties among Maryland providers

Maryland providers

Medical Toxicology (Emergency Medicine) Physician share within Maryland

1. Medical Toxicology (Emergency Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Medical Toxicology (Emergency Medicine) Physician share within Maryland

Specialty board-certification context

Estimated specialty board-certified rate — Medical Toxicology (Emergency Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Medical Toxicology (Emergency Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Medical Toxicology (Emergency Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Medical Toxicology (Emergency Medicine) Physician) — ABMS / AOA estimate

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. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what PRYBYS most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

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. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Medical Toxicology (Emergency Medicine) Physician is a narrow specialty nationwide, with 226 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

110 SOUTH PACA STREET
BALTIMORE, MD 21201

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

Medical Toxicology (Emergency Medicine) Physician Overview

How KATHERINE PRYBYS, D.O. fits within the Medical Toxicology (Emergency Medicine) Physician landscape nationally.

226
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.

Compare Medical Toxicology (Emergency Medicine) Physician nationally: see state-by-state distribution →

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 226 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

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