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GRUENDEL, JOHNM.D. NPI 1245201227 Clinician

Cardiology · CARMEL, NY

Specialty Cardiology — from billed Medicare claims
Trained NEW YORK MEDICAL COLLEGE — medical school, self-reported to CMS
In practice about 39 years since medical school (class of 1987, self-reported to CMS)
Location CARMEL, NY · NPPES registered location
Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 36 codes billed · 13,454 disclosed services (CY2024 — most recent year in data)
Current groups

Group affiliation since 2019

20192026
OPTUM MEDICAL CARE PC
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 2016-11

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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
36415 Insertion of needle into vein for collection of blood sample
93306 Ultrasound of heart with color-depicted blood flow, rate, direction and valve function
J2785 Injection, regadenoson, 0.1 mg
85610 Blood test, clotting time
80053 Blood test, comprehensive group of blood chemicals
80061 Blood test, lipids (cholesterol and triglycerides)
A9502 Technetium tc-99m tetrofosmin, diagnostic, per study dose
83735 Magnesium level
93015 Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician
84439 Thyroxine (thyroid chemical), free
84443 Blood test, thyroid stimulating hormone (tsh)
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes
78452 Nuclear medicine studies of heart muscle at rest and with stress and spect
93280 Programming of dual lead pacemaker system
93242 Heart rhythm recording continous external ekg over more than 48 hours up to 7 days
93244 Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days
80048 Blood test, basic group of blood chemicals (calcium, total)
93225 Electrocardiogram (ecg) 2-day continuous
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
93227 Electrocardiogram (ecg) 2-day continuous with review by health care professional
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
J7050 Infusion, normal saline solution, 250 cc
83880 Natriuretic peptide (heart and blood vessel protein) level
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
83036 Hemoglobin a1c level
82607 Cyanocobalamin (vitamin b-12) level
93248 Heart rhythm review and interpretation of continous external ekg over 8-15 days
82746 Folic acid level, serum
93246 Heart rhythm recording of continous external ekg over 8-15 days
84480 Thyroid hormone, t3 measurement, total
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more

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.