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LOWRIE, KARENCRNA NPI 1154411148 Clinician

Nurse Practitioner · WINCHESTER, MA

Specialty Nurse Practitioner — from billed Medicare claims
In practice about 6 years since medical school (class of 2020, self-reported to CMS)
Location WINCHESTER, MA · NPPES registered location
Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 13 codes billed · 380 disclosed services (CY2024 — most recent year in data)
Current groups
member of 2 groups; the volumes below are this clinician's personal volume and are not attributed to any single group

Group affiliation since 2019

20192026
MASS GENERAL BRIGHAM MEDICAL GROUP NORTHERN MASSACHUSETTS INC
2021–2026
WINCHESTER ANESTHESIA ASSOCIATES, INC
2019–2026
NSPG BILLING LLC
2023–2024
WINCHESTER ANESTHESIA ASSOCIATES 2 INC
2022
NORTH SHORE ANESTHESIA, LLC
2020
NORTH SHORE PAIN MANAGEMENT, LLC
2019–2020

The roster archive begins in 2019, so a span starting at 2019 may reach back further. Membership spans only — no volume is attributed to any group here.

NPPES registry · CMS Doctors & Clinicians registry · Medicare Part B physician/supplier claims · NPPES record last updated 2007-07

Year: 2024 · 2023 · 2022  · 2021  · 2020 

Provider overview · all codes · CY2024

The full analytics for this provider

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The billed-volume positioning, practice focus, and economics behind this provider — computed on the same disclosed Medicare Part B data.

This provider's disclosed Medicare payments across all codes were in CY2024. Unlock to see the figure.

  • Payment, service & beneficiary totals — the disclosed scale, all codes
  • Practice profile — focus & reach — top codes by share of services
  • Office vs. facility setting mix — place-of-service code split
  • Volume over five years — discrete yearly counts, no rate
  • Peer positioning — service volume — percentile among specialty peers, cohort & year disclosed
  • Peer positioning — code breadth — how many codes billed, vs peers

Peer positioning shows billed-volume and code-breadth positions among specialty peers, not measures of care (a provider's true volume position can only be higher, never lower). All figures disclosed Medicare Part B fee-for-service; volumes are personal to this NPI, not attributed to any group.

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Procedures billed to Medicare Part B (2024)

Medicare Part B FFS · CY2024 · as published by CMS
CodeDescription Services Beneficiary-episodes Avg charge Avg Medicare payment
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
81003 Automated urinalysis test
99238 Hospital discharge day management, 30 minutes or less
51798 Ultrasound measurement of bladder capacity after voiding
00811 Anesthesia for other procedure on large bowel using an endoscope
01810 Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes

These are this provider's own Medicare Part B fee-for-service volumes (CMS public data). CMS suppresses rows with fewer than 11 beneficiaries, so low-volume codes may be missing entirely — absence is not zero. Beneficiary-episodes count CMS's per-setting beneficiary figures, not unique patients. Average charge and average Medicare payment are weighted by service volume across office and facility settings. Volumes on this page are personal to the NPI and are not attributed to any physician group. See Methods & Sources.