Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-01-23 View official record Methodology

Covered recipient · General Payments record

JOHN MICHAEL WALLMARK

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1689755365
CMS profile
258361
Location
ROCKVILLE, MD

General Payments · PY2019–2024

$4,806.67

  • Reported across 93 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$2,629.76

67 records · 0 disputed

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

How these totals are calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. Nothing is estimated, weighted, or combined across categories.
  • General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
  • Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,529.81 54
Long term medical supply or device loan $999.96 12
Education $99.99 1

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $1,270.00 2
PY2020 $8.08 1
PY2021 $11.92 1
PY2022 $99.70 1
PY2023 $787.21 21
PY2024 $2,629.76 67

Payment records · PY2024 (67)

Sorted by paying entity, then date · as published by CMS

Program year 2024 20192020202120222023 Record-level detail is published for PY2024; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
ABBVIE INC. $33.44 02/29/2024 Food and Beverage Undisputed 01/23/2026 1106301819 CMS
ABBVIE INC. $28.30 04/30/2024 Food and Beverage Undisputed 01/23/2026 1106301821 CMS
ABBVIE INC. $23.82 10/01/2024 Food and Beverage Undisputed 01/23/2026 1106301823 CMS
ABBVIE INC. $31.72 11/12/2024 Food and Beverage Undisputed 01/23/2026 1106301825 CMS
ARRAY BIOPHARMA INC $36.57 12/05/2024 Food and Beverage Undisputed 01/23/2026 1131260838 CMS
AstraZeneca Pharmaceuticals LP $33.14 05/25/2024 Food and Beverage Undisputed 01/23/2026 1105882969 CMS
AstraZeneca Pharmaceuticals LP $28.56 10/24/2024 Food and Beverage Undisputed 01/23/2026 1105305699 CMS
AstraZeneca Pharmaceuticals LP $34.17 10/29/2024 Food and Beverage Undisputed 01/23/2026 1105702228 CMS
Celgene Corporation $32.26 06/06/2024 Food and Beverage Undisputed 01/23/2026 1101163192 CMS
Daiichi Sankyo Inc. $9.99 01/30/2024 Food and Beverage Undisputed 01/23/2026 1089496130 CMS
Daiichi Sankyo Inc. $29.95 01/30/2024 Food and Beverage Undisputed 01/23/2026 1089496134 CMS
Daiichi Sankyo Inc. $99.99 05/21/2024 Education Undisputed 01/23/2026 1089496132 CMS
Daiichi Sankyo Inc. $29.66 05/21/2024 Food and Beverage Undisputed 01/23/2026 1089496136 CMS
Daiichi Sankyo Inc. $28.26 09/10/2024 Food and Beverage Undisputed 01/23/2026 1089496138 CMS
E.R. Squibb & Sons, L.L.C. $23.26 06/11/2024 Food and Beverage Undisputed 01/23/2026 1101614584 CMS
E.R. Squibb & Sons, L.L.C. $23.34 10/15/2024 Food and Beverage Undisputed 01/23/2026 1101614611 CMS
E.R. Squibb & Sons, L.L.C. $20.29 12/19/2024 Food and Beverage Undisputed 01/23/2026 1101614644 CMS
Eisai Inc. $20.35 08/21/2024 Food and Beverage Undisputed 01/23/2026 1110754180 CMS
Eisai Inc. $23.20 09/13/2024 Food and Beverage Undisputed 01/23/2026 1110754178 CMS
Genentech USA, Inc. $24.78 06/04/2024 Food and Beverage Undisputed 01/23/2026 1133036494 CMS
Genentech USA, Inc. $23.24 06/13/2024 Food and Beverage Undisputed 01/23/2026 1133036498 CMS
Gilead Sciences, Inc. $22.14 02/01/2024 Food and Beverage Undisputed 01/23/2026 1133795275 CMS
Gilead Sciences, Inc. $20.20 05/09/2024 Food and Beverage Undisputed 01/23/2026 1133795277 CMS
Gilead Sciences, Inc. $29.94 11/14/2024 Food and Beverage Undisputed 01/23/2026 1133795279 CMS
GlaxoSmithKline, LLC. $33.28 01/23/2024 Food and Beverage Undisputed 01/23/2026 1115849874 CMS
GlaxoSmithKline, LLC. $33.64 04/23/2024 Food and Beverage Undisputed 01/23/2026 1116517092 CMS
GlaxoSmithKline, LLC. $28.25 07/30/2024 Food and Beverage Undisputed 01/23/2026 1116337183 CMS
GlaxoSmithKline, LLC. $25.22 10/31/2024 Food and Beverage Undisputed 01/23/2026 1116269809 CMS
Incyte Corporation $23.38 03/12/2024 Food and Beverage Undisputed 01/23/2026 1141223562 CMS
Incyte Corporation $13.65 06/19/2024 Food and Beverage Undisputed 01/23/2026 1141292828 CMS
Intera Oncology, Inc $114.21 03/14/2024 Food and Beverage Undisputed 01/23/2026 1089554356 CMS
Janssen Biotech, Inc. $22.76 02/27/2024 Food and Beverage Undisputed 01/23/2026 1078727990 CMS
Janssen Biotech, Inc. $22.79 05/07/2024 Food and Beverage Undisputed 01/23/2026 1078728269 CMS
Lilly USA, LLC $18.63 01/17/2024 Food and Beverage Undisputed 01/23/2026 1135057174 CMS
Merck Sharp & Dohme LLC $34.30 02/08/2024 Food and Beverage Undisputed 01/23/2026 1141623447 CMS
Merck Sharp & Dohme LLC $25.73 02/15/2024 Food and Beverage Undisputed 01/23/2026 1141623561 CMS
Merck Sharp & Dohme LLC $25.91 04/04/2024 Food and Beverage Undisputed 01/23/2026 1141623579 CMS
Merck Sharp & Dohme LLC $17.88 08/06/2024 Food and Beverage Undisputed 01/23/2026 1141623577 CMS
Merck Sharp & Dohme LLC $31.50 10/03/2024 Food and Beverage Undisputed 01/23/2026 1141623449 CMS
Merck Sharp & Dohme LLC $27.42 12/17/2024 Food and Beverage Undisputed 01/23/2026 1141623581 CMS
Novartis Pharmaceuticals Corporation $83.33 01/18/2024 Long term medical supply or device loan Undisputed 01/23/2026 1087389644 CMS
Novartis Pharmaceuticals Corporation $83.33 02/16/2024 Long term medical supply or device loan Undisputed 01/23/2026 1087389646 CMS
Novartis Pharmaceuticals Corporation $83.33 03/15/2024 Long term medical supply or device loan Undisputed 01/23/2026 1087389648 CMS
Novartis Pharmaceuticals Corporation $83.33 04/18/2024 Long term medical supply or device loan Undisputed 01/23/2026 1087389650 CMS
Novartis Pharmaceuticals Corporation $83.33 05/16/2024 Long term medical supply or device loan Undisputed 01/23/2026 1087389652 CMS
Novartis Pharmaceuticals Corporation $83.33 06/13/2024 Long term medical supply or device loan Undisputed 01/23/2026 1087389654 CMS
Novartis Pharmaceuticals Corporation $83.33 07/15/2024 Long term medical supply or device loan Undisputed 01/23/2026 1087389656 CMS
Novartis Pharmaceuticals Corporation $31.29 08/15/2024 Food and Beverage Undisputed 01/23/2026 1087389638 CMS
Novartis Pharmaceuticals Corporation $83.33 08/23/2024 Long term medical supply or device loan Undisputed 01/23/2026 1087389640 CMS
Novartis Pharmaceuticals Corporation $83.33 09/27/2024 Long term medical supply or device loan Undisputed 01/23/2026 1087389642 CMS
Novartis Pharmaceuticals Corporation $83.33 10/17/2024 Long term medical supply or device loan Undisputed 01/23/2026 1087389662 CMS
Novartis Pharmaceuticals Corporation $83.33 11/14/2024 Long term medical supply or device loan Undisputed 01/23/2026 1087389660 CMS
Novartis Pharmaceuticals Corporation $32.89 11/19/2024 Food and Beverage Undisputed 01/23/2026 1087389668 CMS
Novartis Pharmaceuticals Corporation $83.33 12/10/2024 Long term medical supply or device loan Undisputed 01/23/2026 1087389670 CMS
PFIZER INC. $22.46 03/14/2024 Food and Beverage Undisputed 01/23/2026 1131289562 CMS
PFIZER INC. $25.71 07/16/2024 Food and Beverage Undisputed 01/23/2026 1131343340 CMS
PFIZER INC. $22.66 09/17/2024 Food and Beverage Undisputed 01/23/2026 1131360815 CMS
Regeneron Healthcare Solutions, Inc. $29.65 02/13/2024 Food and Beverage Undisputed 01/23/2026 1114243871 CMS
Regeneron Healthcare Solutions, Inc. $31.77 06/18/2024 Food and Beverage Undisputed 01/23/2026 1114243877 CMS
Stemline Therapeutics Inc. $39.91 12/03/2024 Food and Beverage Undisputed 01/23/2026 1142960897 CMS
TAIHO ONCOLOGY, INC. $29.31 07/11/2024 Food and Beverage Undisputed 01/23/2026 1137938384 CMS
TAIHO ONCOLOGY, INC. $20.44 11/07/2024 Food and Beverage Undisputed 01/23/2026 1137937595 CMS
Takeda Pharmaceuticals U.S.A., Inc. $25.97 01/11/2024 Food and Beverage Undisputed 01/23/2026 1144969823 CMS
Takeda Pharmaceuticals U.S.A., Inc. $27.53 04/25/2024 Food and Beverage Undisputed 01/23/2026 1144969825 CMS
Takeda Pharmaceuticals U.S.A., Inc. $26.57 05/14/2024 Food and Beverage Undisputed 01/23/2026 1144969827 CMS
Takeda Pharmaceuticals U.S.A., Inc. $24.94 08/29/2024 Food and Beverage Undisputed 01/23/2026 1144969829 CMS
Tempus AI, Inc $29.58 08/08/2024 Food and Beverage Undisputed 01/23/2026 1150176773 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-01-23
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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