Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

MARK JOSEPH FESLER

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1235204066
CMS profile
328476
Location
SAINT LOUIS, MO

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

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General Payments · PY2022 · Entire year

$113,026.05

66 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

Other CMS categories — not shown on this page

Research Payments

CMS also publishes Research Payments as a separate dataset. This site does not currently mirror it, and no research figure is shown on this page. This provider appears in that dataset.

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”

— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗

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

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. 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.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state. View the official CMS record ↗

By nature of payment

PY2022 · entire year · sorted by reported total

By paying entity

PY2022 · entire year · sorted by reported total

Paying entityAmountRecords
Incyte Corporation $38,327.26 27
ADC Therapeutics America, Inc. $23,120.33 10
GENZYME CORPORATION $22,958.22 11
ABBVIE INC. $16,505.82 9
E.R. Squibb & Sons, L.L.C. $4,297.50 2
Lilly USA, LLC $3,125.00 1
AstraZeneca Pharmaceuticals LP $2,226.25 1
Genentech USA, Inc. $1,765.00 1
Epizyme, Inc., $590.00 1
EMD Serono, Inc. $84.77 1
Acrotech Biopharma LLC $25.90 2

Payment records · PY2022

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2022 · Physicians and non-physician practitioners · CMS publication 2026-06-30

66 matching records · $113,026.05 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 66 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–50 of 66.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
ABBVIE INC. $800.0012/30/2022 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026890956299 CMS
ADC Therapeutics America, Inc. $8,700.0012/15/2022 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026922064193 CMS
Incyte Corporation $1,230.0012/13/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042053 CMS
Incyte Corporation $2,460.0012/13/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042057 CMS
Incyte Corporation $127.1412/08/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042055 CMS
Genentech USA, Inc. $1,765.0012/06/2022 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026950643417 CMS
Incyte Corporation $1,230.0012/06/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042051 CMS
ABBVIE INC. $2,400.0011/25/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026890956297 CMS
ADC Therapeutics America, Inc. $3,650.0011/22/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026922064205 CMS
ADC Therapeutics America, Inc. $73.3211/18/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026922064203 CMS
ADC Therapeutics America, Inc. $115.0011/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026922064195 CMS
ADC Therapeutics America, Inc. $189.9311/12/2022 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026922064197 CMS
ADC Therapeutics America, Inc. $506.5811/12/2022 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026922064199 CMS
Incyte Corporation $1,230.0011/04/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042041 CMS
Lilly USA, LLC $3,125.0011/03/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026918192425 CMS
GENZYME CORPORATION $2,247.0011/01/2022 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026938967929 CMS
ABBVIE INC. $800.0010/20/2022 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026890956295 CMS
ADC Therapeutics America, Inc. $1,825.0010/11/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026922064207 CMS
AstraZeneca Pharmaceuticals LP $2,226.2510/05/2022 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026920257407 CMS
Incyte Corporation $3,690.0009/20/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042035 CMS
Incyte Corporation $735.0209/15/2022 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042037 CMS
Incyte Corporation $125.0009/15/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042039 CMS
GENZYME CORPORATION $6,561.0009/01/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026938967933 CMS
GENZYME CORPORATION $786.5009/01/2022 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026938967935 CMS
GENZYME CORPORATION $60.8209/01/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026938967943 CMS
Epizyme, Inc., $590.0007/14/2022 Honoraria No dispute reported Delay: No
Change: UNCHANGED
06/30/2026917607579 CMS
ADC Therapeutics America, Inc. $1,460.0007/12/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026922064173 CMS
Incyte Corporation $3,536.2507/05/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042021 CMS
Incyte Corporation $1,998.7507/01/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042027 CMS
Incyte Corporation $210.0006/30/2022 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042007 CMS
ADC Therapeutics America, Inc. $5,840.0006/28/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026922064171 CMS
ADC Therapeutics America, Inc. $760.5006/25/2022 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026922064169 CMS
Incyte Corporation $315.0106/25/2022 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042019 CMS
Incyte Corporation $768.7506/24/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042025 CMS
Incyte Corporation $4,920.0006/22/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042013 CMS
ABBVIE INC. $2,400.0006/21/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026890956293 CMS
Incyte Corporation $1,155.0406/16/2022 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042009 CMS
Incyte Corporation $117.4206/16/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042011 CMS
E.R. Squibb & Sons, L.L.C. $2,760.0006/09/2022 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026932795925 CMS
Incyte Corporation $16.3806/01/2022 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943041995 CMS
Incyte Corporation $3,690.0006/01/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943041997 CMS
E.R. Squibb & Sons, L.L.C. $1,537.5005/26/2022 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026932795917 CMS
Incyte Corporation $100.0005/24/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943041993 CMS
Acrotech Biopharma LLC $11.9705/18/2022 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026937454857 CMS
GENZYME CORPORATION $125.0005/18/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026938967937 CMS
GENZYME CORPORATION $6,561.0005/18/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026938967939 CMS
GENZYME CORPORATION $762.0705/18/2022 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026938967941 CMS
Incyte Corporation $1,845.0005/18/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042001 CMS
Incyte Corporation $1,845.0005/18/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943042003 CMS
Incyte Corporation $410.0004/21/2022 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026943041999 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $56,258.52 60
PY2020 $45,089.05 29
PY2021 $111,652.62 64
PY2022 $113,026.05 66
PY2023 $155,757.93 130
PY2024 $192,797.48 134
PY2025 $195,857.86 114

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.

Cite this record.

Plain
MARK JOSEPH FESLER, NPI 1235204066. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1235204066.
APA 7
IndustryPayments. (2026). MARK JOSEPH FESLER, NPI 1235204066 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1235204066
Bluebook
MARK JOSEPH FESLER, NPI 1235204066, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1235204066.

Source: Centers for Medicare & Medicaid Services, Open Payments.