NEVVI Medicare utilization intelligence

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LAZAREV, MARKM.D. NPI 1104094739 Clinician

Gastroenterology · BALTIMORE, MD

Specialty Gastroenterology — from billed Medicare claims
Trained UNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE — medical school, self-reported to CMS
In practice about 24 years since medical school (class of 2002, self-reported to CMS)
Location BALTIMORE, MD · NPPES registered location
Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 15 codes billed · 17,321 disclosed services (CY2024 — most recent year in data)
Current groups

Group affiliation since 2019

20192026
JOHNS HOPKINS UNIVERSITY
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 2013-02

Year: 2024 · 2023 · 2022  · 2021  · 2020 

Provider overview · all codes · CY2024

The full analytics for this provider

Premium

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
J3380 Injection, vedolizumab, intravenous, 1 mg
J0897 Injection, denosumab, 1 mg
J3489 Injection, zoledronic acid, 1 mg
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
96413 Administration of chemotherapy into vein, 1 hour or less
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less
96415 Administration of chemotherapy into vein, each additional hour
45380 Biopsy of large bowel using a flexible endoscope
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare
96372 Injection of drug or substance under skin or into muscle
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 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.