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SEIFERT, MARKMD NPI 1942201694 Clinician

Clinical Cardiac Electrophysiology · PHOENIX, AZ

Specialty Clinical Cardiac Electrophysiology — from billed Medicare claims
Trained JOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE — medical school, self-reported to CMS
In practice about 37 years since medical school (class of 1989, self-reported to CMS)
Location PHOENIX, AZ · NPPES registered location
Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 31 codes billed · 5,945 disclosed services (CY2024 — most recent year in data)
Current groups

Group affiliation since 2019

20192026
HONORHEALTH AMBULATORY
2019–2026

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 2013-09

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. Included with Platform.

  • 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
93296 Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days
93294 Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days
93298 Evaluation of cardiac rhythm monitor system, remote up to 30 days
93295 Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days
93280 Programming of dual lead pacemaker system
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
93284 Programming of multiple lead implantable defibrillator system
99152 Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes
93279 Programming of single lead pacemaker system
93656 Comprehensive electrophysiologic evaluation with catheter destruction of abnormality causing atrial fibrillation (uncoordinated contraction of upper chambers of heart) by pulmonary vein isolation
93281 Programming of multiple lead pacemaker system
93655 Insertion of catheters and destruction of tissue to treat abnormal heart rhythm
92960 External shock to heart to regulate heart beat
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
33340 Repair of left upper heart chamber with implant with review by radiologist
93283 Programming of dual lead implantable defibrillator system
93285 Programming of cardiac rhythm monitor system
93657 Destruction of tissue of upper heart chamber through tube to treat abnormal heart rhythm
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
33285 Insertion of heart rhythm monitor under skin
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
33208 Insertion of pacemaker and upper and lower heart chamber electrode
93662 Ultrasound evaluation of heart blood vessel with review by radiologist
93653 Comprehensive electrophysiologic evaluation with catheter destruction of abnormality of upper chamber of heart causing supraventricular tachycardia (rapid heart rate)
33225 Insertion of left lower heart electrode for pacemaker or defibrillator
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
33228 Removal and replacement of dual lead permanent pacemaker
33229 Removal and replacement of multiple lead permanent pacemaker
33286 Removal of heart rhythm monitor from under the skin

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.