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SCHUMAKER, ROBERTMD NPI 1679573752 Clinician

Hematology-Oncology · KNOXVILLE, TN

Specialty Hematology-Oncology — from billed Medicare claims
Trained UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL SCHOOL AT DALLAS — medical school, self-reported to CMS
In practice about 32 years since medical school (class of 1994, self-reported to CMS)
Location KNOXVILLE, TN · NPPES registered location
Active in data Billed Medicare 2020–2024 (5 consecutive years)
Scale 56 codes billed · 94,558 disclosed services (CY2024 — most recent year in data)
Current groups

Group affiliation since 2019

20192026
TENNESSEE CANCER SPECIALISTS PLLC
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 2025-04

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
Q0138 Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use)
J1439 Injection, ferric carboxymaltose, 1 mg
J9271 Injection, pembrolizumab, 1 mg
J0897 Injection, denosumab, 1 mg
J1437 Injection, ferric derisomaltose, 10 mg
J1100 Injection, dexamethasone sodium phosphate, 1 mg
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
J2405 Injection, ondansetron hydrochloride, per 1 mg
80053 Blood test, comprehensive group of blood chemicals
36415 Insertion of needle into vein for collection of blood sample
J2919 Injection, methylprednisolone sodium succinate, 5 mg
96372 Injection of drug or substance under skin or into muscle
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
J2469 Injection, palonosetron hcl, 25 mcg
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg
82728 Ferritin (blood protein) level
83615 Lactate dehydrogenase (enzyme) level
88185 Flow cytometry technique for dna or cell analysis, each additional marker
82784 Gammaglobulin (immune system protein) measurement
96413 Administration of chemotherapy into vein, 1 hour or less
96367 Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less
82607 Cyanocobalamin (vitamin b-12) level
83550 Iron binding capacity
83540 Iron level
96401 Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle
96365 Infusion into a vein for therapy, prevention, or diagnosis, 1 hour or less
96375 Injection of additional new drug or substance into vein
83521 Measurement of immunoglobulin light chains
96402 Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle
J1200 Injection, diphenhydramine hcl, up to 50 mg
82746 Folic acid level, serum
96417 Administration of additional new drug or substance into vein, 1 hour or less
J3489 Injection, zoledronic acid, 1 mg
86334 Immunologic analysis technique on serum (immunofixation)
84165 Protein measurement, serum
84443 Blood test, thyroid stimulating hormone (tsh)
96415 Administration of chemotherapy into vein, each additional hour
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
96523 Irrigation of implanted venous access drug delivery device
82378 Carcinoembryonic antigen (cea) protein level
83735 Magnesium level
84153 Psa (prostate specific antigen) measurement, total
85045 Red blood count, automated test
82232 Beta-2 microglobulin (protein) level
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
J7030 Infusion, normal saline solution , 1000 cc
85651 Red blood cell sedimentation rate, to detect inflammation, non-automated
96360 Infusion into a vein for hydration, 31-60 minutes
36591 Collection of blood sample from implanted device
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more
81002 Urinalysis, manual test
82668 Erythropoietin (protein) level
83010 Haptoglobin (serum protein) level
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
88184 Flow cytometry technique for dna or cell analysis, first marker

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.