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

MAZEN KHATTAB

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1205804283
CMS profile
236319
Location
PHOENIX, AZ

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.

Saved items

Saved only in this browser. No account or alerts.

Filter and download payment records

General Payments · PY2022 · Entire year

$17,270.17

233 records · 0 disputed

Summary and payment records

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

“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

Nature of paymentAmountRecords
Consulting Fee $9,050.00 2
Food and Beverage $4,777.24 223
Honoraria $2,300.00 2
Travel and Lodging $1,006.14 2
Education $136.79 4

By paying entity

PY2022 · entire year · sorted by reported total

Paying entityAmountRecords
ADC Therapeutics America, Inc. $8,535.91 7
E.R. Squibb & Sons, L.L.C. $2,290.34 23
PFIZER INC. $1,937.02 11
Daiichi Sankyo Inc. $696.28 7
Amgen Inc. $368.22 16
AstraZeneca Pharmaceuticals LP $297.02 8
Celgene Corporation $275.32 19
Genentech USA, Inc. $266.61 14
Novartis Pharmaceuticals Corporation $259.66 17
GENZYME CORPORATION $197.12 10
Janssen Biotech, Inc. $174.84 9
Seagen Inc. $156.14 8
Merck Sharp & Dohme LLC $149.35 7
Lilly USA, LLC $145.38 6
Incyte Corporation $131.59 6
Astellas Pharma US Inc $111.68 6
SANOFI-AVENTIS U.S. LLC $99.99 1
Karyopharm Therapeutics Inc. $92.47 4
Exelixis Inc. $89.92 4
Bayer HealthCare Pharmaceuticals Inc. $85.44 4
PUMA BIOTECHNOLOGY, INC. $65.25 3
EMD Serono, Inc. $58.97 3
ARRAY BIOPHARMA INC $56.88 3
EISAI INC. $55.62 3
Kyowa Kirin, Inc. $44.61 2
Global Blood Therapeutics, Inc. $37.85 2
Blueprint Medicines Corporation $36.34 2
Ipsen Biopharmaceuticals, Inc $31.37 2
Gilead Sciences, Inc. $30.72 2
TerSera Therapeutics LLC $30.33 1
Kite Pharma, Inc. $28.81 2
JAZZ PHARMACEUTICALS INC. $27.55 1
Takeda Pharmaceuticals U.S.A., Inc. $24.68 1
CTI BioPharma Corp. $24.50 1
Regeneron Healthcare Solutions, Inc. $24.14 1
Adaptive Biotechnologies Corporation $23.99 1
Genmab U.S., Inc. $23.81 1
Abbott Laboratories $22.18 1
ABBVIE INC. $21.65 1
Rigel Pharmaceuticals, Inc. $21.28 1
Sun Pharmaceutical Industries Inc. $21.27 1
GlaxoSmithKline, LLC. $20.69 1
Clovis Oncology, Inc. $20.46 1
Pharmacyclics LLC, an AbbVie Company $20.42 1
G1 Therapeutics, Inc. $20.04 1
SERVIER PHARMACEUTICALS LLC $20.00 1
Pharmacosmos Therapeutics Inc. $19.91 1
EUSA Pharma (US) LLC $17.92 1
AVEO Pharmaceuticals, Inc. $16.16 1
Myovant Sciences Inc. $15.71 1
Apellis Pharmaceuticals, Inc. $14.81 1
Alexion Pharmaceuticals, Inc. $11.95 1

Page 1 of 5; records 1–50 of 233 matching records. This page contains 50 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

MAZEN KHATTAB

NPI 1205804283 · CMS profile ID 236319

Allopathic & Osteopathic Physicians / Internal Medicine / Hematology & Oncology

PHOENIX, AZ

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.

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.

General Payments, PY2022; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types

Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00

Page 1 of 5; records 1–50 of 233 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1205804283?year=2022&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain
MAZEN KHATTAB, NPI 1205804283, CMS profile ID 236319. General Payments, PY2022; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 5; records 1–50 of 233 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1205804283?year=2022&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c.
APA 7
IndustryPayments. (2026). MAZEN KHATTAB, NPI 1205804283, CMS profile ID 236319. General Payments, PY2022; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 5; records 1–50 of 233 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1205804283?year=2022&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c.
Bluebook
MAZEN KHATTAB, NPI 1205804283, CMS profile ID 236319, IndustryPayments, General Payments, PY2022; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 1 of 5; records 1–50 of 233 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c. https://industrypayments.org/provider/npi-1205804283?year=2022&recipient=provider#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

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

233 matching records · $17,270.17 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 233 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 233.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Exelixis Inc. $24.2612/22/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 965262677 CMS
ADC Therapeutics America, Inc. $7,250.0012/15/2022 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922063933 CMS
Seagen Inc. $32.5012/15/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 904111175 CMS
Novartis Pharmaceuticals Corporation $12.4012/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 893832303 CMS
E.R. Squibb & Sons, L.L.C. $18.1612/13/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932734583 CMS
AstraZeneca Pharmaceuticals LP $23.9012/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 914731025 CMS
Celgene Corporation $0.5412/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932734585 CMS
Celgene Corporation $12.1712/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932734587 CMS
Regeneron Healthcare Solutions, Inc. $24.1412/09/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 927231855 CMS
ADC Therapeutics America, Inc. $8.3912/08/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1060940411 CMS
Amgen Inc. $23.9712/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 939230619 CMS
Astellas Pharma US Inc $19.0612/05/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 940329859 CMS
Amgen Inc. $27.3212/01/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 939854619 CMS
Novartis Pharmaceuticals Corporation $17.4811/30/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 893832299 CMS
Eisai Inc. $21.4011/29/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 935312195 CMS
GENZYME CORPORATION $25.0211/29/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 938909913 CMS
ABBVIE INC. $21.6511/23/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 893060867 CMS
Celgene Corporation $34.3211/22/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932734575 CMS
Bayer HealthCare Pharmaceuticals Inc. $21.3811/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 929831371 CMS
Sun Pharmaceutical Industries Inc. $21.2711/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 947845973 CMS
Blueprint Medicines Corporation $18.0811/17/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 958939885 CMS
EMD Serono, Inc. $18.3711/17/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1027148321 CMS
EMD Serono, Inc. $21.8911/16/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 941575419 CMS
Merck Sharp & Dohme LLC $21.1711/15/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 944254653 CMS
Incyte Corporation $20.6411/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 943011837 CMS
ADC Therapeutics America, Inc. $240.0011/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922063935 CMS
ADC Therapeutics America, Inc. $189.9311/12/2022 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922063937 CMS
ADC Therapeutics America, Inc. $816.2111/12/2022 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922063939 CMS
ARRAY BIOPHARMA INC $19.9611/10/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 949501555 CMS
CTI BioPharma Corp. $24.5011/09/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 933545957 CMS
Amgen Inc. $27.7911/08/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 939854611 CMS
Amgen Inc. $30.0711/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 939230627 CMS
Puma Biotechnology, Inc. $22.7011/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 965578691 CMS
Incyte Corporation $27.3511/03/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 943011867 CMS
Merck Sharp & Dohme LLC $21.0211/03/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 944252655 CMS
Janssen Biotech, Inc. $20.8911/01/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 885511675 CMS
Karyopharm Therapeutics Inc. $25.7810/28/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 946523515 CMS
Lilly USA, LLC $26.3210/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 918264937 CMS
Celgene Corporation $3.5410/24/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932734561 CMS
Celgene Corporation $10.5810/24/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932734563 CMS
Celgene Corporation $21.2210/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932734551 CMS
Celgene Corporation $1.6810/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 932734553 CMS
Daiichi Sankyo Inc. $28.6310/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 930868517 CMS
GENZYME CORPORATION $21.5810/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 938909907 CMS
Genentech USA, Inc. $19.7410/18/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 950744263 CMS
Novartis Pharmaceuticals Corporation $13.3310/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 893832295 CMS
PFIZER INC. $18.5310/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 949386113 CMS
AstraZeneca Pharmaceuticals LP $23.3310/13/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 915379421 CMS
Daiichi Sankyo Inc. $28.3110/13/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 930869947 CMS
Global Blood Therapeutics, Inc. $22.4410/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 942703551 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $60,406.26 244
PY2020 $34,030.79 77
PY2021 $17,688.53 121
PY2022 $17,270.17 233
PY2023 $40,028.78 239
PY2024 $8,914.32 233
PY2025 $7,262.30 111

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.