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CHOI, KENNETHMD NPI 1619098571 Clinician

Nephrology · MERRILLVILLE, IN

Specialty Nephrology — from billed Medicare claims
Trained NORTHWESTERN UNIVERSITY FEINBERG MEDICAL SCHOOL — medical school, self-reported to CMS
In practice about 25 years since medical school (class of 2001, self-reported to CMS)
Location MERRILLVILLE, IN · NPPES registered location
Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 22 codes billed · 2,665 disclosed volume (CY2024 — most recent year in data)
Current groups
Hospital affiliations
  • Dialysis facility — CCN 152541
  • Dialysis facility — CCN 152562
  • Hospital — CCN 150002
  • Hospital — CCN 150008
  • Hospital — CCN 150034
  • Hospital — CCN 150125
  • Hospital — CCN 150126
  • Inpatient rehabilitation facility — CCN 153045
registry affiliations from the CMS Doctors & Clinicians facility file — an administrative affiliation, not a statement about where care is delivered

Group affiliation since 2019

20192026
NEPHROLOGY ASSOCIATES OF NORTHERN INDIANA PC
2019–2026
NEPHROLOGY ASSOCIATES OF NORTHERN ILLINOIS LTD
2019–2022

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 2025-04
Data year CY2024 CY2023 CY2022  CY2021  CY2020 

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 submitted charges across all codes were in CY2024. Included with Platform.

  • Charge, 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
  • 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 Volume Beneficiary-episodes Avg charge Avg Medicare payment
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml
J2250 Injection, midazolam hydrochloride, per 1 mg
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
J3010 Injection, fentanyl citrate, 0.1 mg
36902 Insertion of needle and/or tube into hemodialysis circuit and balloon dilation of dialysis segment with review by radiologist
99152 Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes
36215 Insertion of tube into chest or arm artery, each first order branch
75710 Review by radiologist of arm or leg artery image
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes
99153 Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes
36589 Removal of tunneled central venous tube
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
36005 Injection for x-ray imaging procedure into vein of arm or leg
75822 Review by radiologist of both arms and legs veins of both arms or legs image
77001 Fluoroscopic guidance for insertion or removal of central vein access device
36901 Insertion of needle and/or tube into hemodialysis circuit with review by radiologist
36581 Replacement of tunneled central venous tube
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
93985 Complete ultrasound of artery and vein blood flow pre-op assessment on both sides of body for hemodialysis access
37248 Balloon dilation of vein with review by radiologist, initial vein
90935 Hemodialysis procedure with physician evaluation

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.