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

IVAN R LANDAN

Allopathic & Osteopathic Physicians Psychiatry & Neurology Neurology

NPI
1659341295
CMS profile
210148
Location
MUSKEGON, MI

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 · PY2019 · Entire year

$24,303.32

122 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

PY2019 · entire year · sorted by reported total

By paying entity

PY2019 · entire year · sorted by reported total

Page 2 of 3; records 51–100 of 122 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

IVAN R LANDAN

NPI 1659341295 · CMS profile ID 210148

Allopathic & Osteopathic Physicians / Psychiatry & Neurology / Neurology

MUSKEGON, MI

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, PY2019; 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 2 of 3; records 51–100 of 122 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1659341295?year=2019&recipient=provider&page=2#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e

Cite these filtered records

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

Plain
IVAN R LANDAN, NPI 1659341295, CMS profile ID 210148. General Payments, PY2019; 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 2 of 3; records 51–100 of 122 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1659341295?year=2019&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
APA 7
IndustryPayments. (2026). IVAN R LANDAN, NPI 1659341295, CMS profile ID 210148. General Payments, PY2019; 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 2 of 3; records 51–100 of 122 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1659341295?year=2019&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
Bluebook
IVAN R LANDAN, NPI 1659341295, CMS profile ID 210148, IndustryPayments, General Payments, PY2019; 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 2 of 3; records 51–100 of 122 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e. https://industrypayments.org/provider/npi-1659341295?year=2019&recipient=provider&page=2#records-h.

Centers for Medicare & Medicaid Services, Open Payments

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

Payment records · PY2019

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

General Payments · PY2019 · Physicians and non-physician practitioners · CMS publication 2026-06-30

122 matching records · $24,303.32 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 122 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 51–100 of 122.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Biogen, Inc. $0.6907/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624973 CMS
Biogen, Inc. $0.8907/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624975 CMS
Biogen, Inc. $1.5007/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624977 CMS
Biogen, Inc. $22.7407/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624979 CMS
EMD Serono, Inc. $15.8906/27/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 702986067 CMS
GENZYME CORPORATION $62.1906/27/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694094243 CMS
GENZYME CORPORATION $3,743.0006/27/2019 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
06/30/2026 694094245 CMS
GENZYME CORPORATION $424.5606/27/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694094247 CMS
GENZYME CORPORATION $133.5406/27/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694297297 CMS
EMD Serono, Inc. $9.1506/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703010457 CMS
EMD Serono, Inc. $0.3506/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703027799 CMS
Abbott Laboratories $27.6606/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 666922983 CMS
GENZYME CORPORATION $34.3206/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694083103 CMS
GENZYME CORPORATION $40.4606/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694167693 CMS
GENZYME CORPORATION $2,266.0006/24/2019 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
06/30/2026 694167695 CMS
GENZYME CORPORATION $27.8406/24/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694167697 CMS
GENZYME CORPORATION $2,266.0006/24/2019 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
06/30/2026 694177803 CMS
GENZYME CORPORATION $27.2606/24/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694177805 CMS
EMD Serono, Inc. $7.9906/20/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703012315 CMS
Biogen, Inc. $14.1006/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624969 CMS
Biogen, Inc. $1.3806/19/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624971 CMS
GENZYME CORPORATION $11.5406/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694042369 CMS
EMD Serono, Inc. $10.3306/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703008893 CMS
Biogen, Inc. $16.3006/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660625009 CMS
Biogen, Inc. $0.9406/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624961 CMS
Biogen, Inc. $3.4506/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624963 CMS
Biogen, Inc. $1.3706/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624965 CMS
Biogen, Inc. $14.8006/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624967 CMS
Acorda Therapeutics, Inc $21.6705/29/2019 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
06/30/2026 633498529 CMS
EMD Serono, Inc. $12.5005/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703001849 CMS
Alexion Pharmaceuticals, Inc. $14.3705/28/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695569265 CMS
Biogen, Inc. $3.1805/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624957 CMS
Biogen, Inc. $0.6705/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624959 CMS
Lilly USA, LLC $13.3305/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 657860083 CMS
EMD Serono, Inc. $16.3605/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 702984085 CMS
Novartis Pharmaceuticals Corporation $11.4905/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 659612675 CMS
ACADIA Pharmaceuticals Inc $19.1404/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 700011385 CMS
Biogen, Inc. $1.5004/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624947 CMS
Biogen, Inc. $15.3004/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624949 CMS
Biogen, Inc. $0.6804/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624951 CMS
Biogen, Inc. $2.8904/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624953 CMS
Biogen, Inc. $3.4804/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624955 CMS
EMD Serono, Inc. $4.5104/25/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703018129 CMS
EMD Serono, Inc. $8.0204/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703012267 CMS
EMD Serono, Inc. $0.8204/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 703026513 CMS
Acorda Therapeutics, Inc $24.0104/10/2019 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
06/30/2026 633498527 CMS
GENZYME CORPORATION $18.3404/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 694007841 CMS
Biogen, Inc. $7.5803/27/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624943 CMS
Biogen, Inc. $19.7003/27/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 660624945 CMS
Neurocrine Biosciences, Inc. $18.6903/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 693142679 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $24,303.32 122
PY2020 $215.07 11

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
Source files and profile matching
Source files
Dataset page · Bulk file · PY2019 , PY2020
Generated from
OP_DTL_GNRL_PGYR2020_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.