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

AHMIR H KHAN

Allopathic & Osteopathic Physicians Psychiatry & Neurology Neurology

NPI
1851575039
CMS profile
672683
Location
LAKE BARRINGTON, IL

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 · PY2023 · Entire year

$1,635.53

87 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

PY2023 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,635.53 87

By paying entity

PY2023 · entire year · sorted by reported total

Paying entityAmountRecords
PFIZER INC. $511.87 52
TG Therapeutics, Inc. $511.45 4
ABBVIE INC. $292.44 22
Biogen, Inc. $110.01 1
Amgen Inc. $65.55 2
Takeda Pharmaceuticals U.S.A., Inc. $42.22 2
UCB, Inc. $29.28 1
Lilly USA, LLC $29.23 1
MITSUBISHI TANABE PHARMA AMERICA, INC. $25.60 1
Alexion Pharmaceuticals, Inc. $17.88 1

Page 1 of 2; records 1–50 of 87 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

AHMIR H KHAN

NPI 1851575039 · CMS profile ID 672683

Allopathic & Osteopathic Physicians / Psychiatry & Neurology / Neurology

LAKE BARRINGTON, IL

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, PY2023; 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 2; records 1–50 of 87 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1851575039?year=2023&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9

Cite these filtered records

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

Plain
AHMIR H KHAN, NPI 1851575039, CMS profile ID 672683. General Payments, PY2023; 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 2; records 1–50 of 87 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1851575039?year=2023&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
APA 7
IndustryPayments. (2026). AHMIR H KHAN, NPI 1851575039, CMS profile ID 672683. General Payments, PY2023; 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 2; records 1–50 of 87 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1851575039?year=2023&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
Bluebook
AHMIR H KHAN, NPI 1851575039, CMS profile ID 672683, IndustryPayments, General Payments, PY2023; 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 2; records 1–50 of 87 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9. https://industrypayments.org/provider/npi-1851575039?year=2023&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 · PY2023

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

General Payments · PY2023 · Physicians and non-physician practitioners · CMS publication 2026-06-30

87 matching records · $1,635.53 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 87 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 87.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
TG Therapeutics, Inc. $23.0512/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1051480041 CMS
PFIZER INC. $7.3812/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1049226097 CMS
PFIZER INC. $8.8412/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050440723 CMS
ABBVIE INC. $29.3612/07/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 997634793 CMS
ABBVIE INC. $8.0012/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 997634791 CMS
PFIZER INC. $31.7412/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050591305 CMS
ABBVIE INC. $24.9911/29/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 997634789 CMS
PFIZER INC. $8.9911/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050564611 CMS
PFIZER INC. $0.8211/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050681585 CMS
PFIZER INC. $9.1411/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1049287453 CMS
PFIZER INC. $11.6011/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050448283 CMS
PFIZER INC. $8.6411/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1049261613 CMS
PFIZER INC. $9.9611/02/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050674039 CMS
PFIZER INC. $11.0010/31/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050614593 CMS
PFIZER INC. $8.3910/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050539295 CMS
PFIZER INC. $0.6510/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1049432695 CMS
PFIZER INC. $8.1310/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050634369 CMS
ABBVIE INC. $8.9210/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 997634787 CMS
PFIZER INC. $9.3610/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050458013 CMS
PFIZER INC. $10.4810/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050669919 CMS
PFIZER INC. $7.0910/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050420307 CMS
PFIZER INC. $0.7510/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050478351 CMS
PFIZER INC. $11.2709/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050601453 CMS
ABBVIE INC. $7.5909/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 997634785 CMS
Amgen Inc. $32.5509/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1019777967 CMS
Lilly USA, LLC $29.2309/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1031231267 CMS
ABBVIE INC. $8.2309/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 997634783 CMS
UCB, Inc. $29.2809/13/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1021636869 CMS
PFIZER INC. $11.1409/05/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050473879 CMS
ABBVIE INC. $23.5208/30/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 997634781 CMS
PFIZER INC. $30.6408/30/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1049291407 CMS
PFIZER INC. $5.4908/30/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050465621 CMS
PFIZER INC. $9.1308/25/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050571617 CMS
PFIZER INC. $8.6508/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050499487 CMS
TG Therapeutics, Inc. $164.5808/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1051479841 CMS
Takeda Pharmaceuticals U.S.A., Inc. $17.3308/24/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1055429681 CMS
ABBVIE INC. $23.7108/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 997634779 CMS
PFIZER INC. $10.9108/17/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050497351 CMS
PFIZER INC. $27.8608/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050486299 CMS
PFIZER INC. $6.9008/08/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050704971 CMS
Alexion Pharmaceuticals, Inc. $17.8808/02/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1017071915 CMS
PFIZER INC. $6.0208/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1049274641 CMS
PFIZER INC. $9.4308/01/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050521143 CMS
PFIZER INC. $8.4207/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1049110737 CMS
PFIZER INC. $7.5107/26/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050522109 CMS
PFIZER INC. $8.3707/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1049308737 CMS
ABBVIE INC. $7.9307/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 997634777 CMS
PFIZER INC. $6.7907/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1049344195 CMS
PFIZER INC. $3.3007/12/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050600855 CMS
PFIZER INC. $11.0307/06/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1050704969 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $1,636.87 81
PY2020 $729.44 50
PY2021 $2,042.25 135
PY2022 $1,664.57 124
PY2023 $1,635.53 87
PY2024 $1,620.38 114
PY2025 $1,980.48 127

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.