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

IKECHI C NNAWUCHI

Allopathic & Osteopathic Physicians Psychiatry & Neurology Psychiatry

NPI
1598798662
CMS profile
208420
Location
WASHINGTON, DC

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 · PY2020 · Entire year

$34,758.87

138 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

PY2020 · entire year · sorted by reported total

By paying entity

PY2020 · entire year · sorted by reported total

Paying entityAmountRecords
Neurocrine Biosciences, Inc. $23,674.57 39
Allergan, Inc. $9,693.92 35
Sunovion Pharmaceuticals Inc. $807.34 34
Alkermes, Inc. $188.94 9
Vanda Pharmaceuticals Inc. $117.64 7
ITI, Inc. $109.79 6
Janssen Pharmaceuticals, Inc $70.12 3
Otsuka America Pharmaceutical, Inc. $58.38 3
Lundbeck LLC $38.17 2

Page 1 of 3; records 1–50 of 138 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

IKECHI C NNAWUCHI

NPI 1598798662 · CMS profile ID 208420

Allopathic & Osteopathic Physicians / Psychiatry & Neurology / Psychiatry

WASHINGTON, DC

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, PY2020; 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 3; records 1–50 of 138 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1598798662?year=2020&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019

Cite these filtered records

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

Plain
IKECHI C NNAWUCHI, NPI 1598798662, CMS profile ID 208420. General Payments, PY2020; 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 3; records 1–50 of 138 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1598798662?year=2020&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019.
APA 7
IndustryPayments. (2026). IKECHI C NNAWUCHI, NPI 1598798662, CMS profile ID 208420. General Payments, PY2020; 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 3; records 1–50 of 138 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1598798662?year=2020&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019.
Bluebook
IKECHI C NNAWUCHI, NPI 1598798662, CMS profile ID 208420, IndustryPayments, General Payments, PY2020; 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 3; records 1–50 of 138 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019. https://industrypayments.org/provider/npi-1598798662?year=2020&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 · PY2020

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

General Payments · PY2020 · Physicians and non-physician practitioners · CMS publication 2026-06-30

138 matching records · $34,758.87 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 138 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 138.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Allergan, Inc. $16.7112/23/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 723387219 CMS
ITI, Inc. $11.7012/18/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 750035573 CMS
Neurocrine Biosciences, Inc. $22.4712/14/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748933363 CMS
Sunovion Pharmaceuticals Inc. $26.0612/14/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748484741 CMS
Vanda Pharmaceuticals Inc. $18.8312/12/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 735138849 CMS
Sunovion Pharmaceuticals Inc. $24.7312/11/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748484701 CMS
ITI, Inc. $26.8512/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 750035571 CMS
Sunovion Pharmaceuticals Inc. $26.9812/04/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748484785 CMS
ITI, Inc. $19.3212/03/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 750035569 CMS
Sunovion Pharmaceuticals Inc. $26.5011/23/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748484749 CMS
Sunovion Pharmaceuticals Inc. $26.9811/20/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748484781 CMS
Vanda Pharmaceuticals Inc. $8.2111/20/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 735138845 CMS
Sunovion Pharmaceuticals Inc. $26.9811/13/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748484775 CMS
Neurocrine Biosciences, Inc. $1,119.0011/10/2020 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 748933361 CMS
Sunovion Pharmaceuticals Inc. $26.9811/06/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748484771 CMS
Sunovion Pharmaceuticals Inc. $26.9811/02/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748484765 CMS
Allergan, Inc. $14.7310/30/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 723387215 CMS
Neurocrine Biosciences, Inc. $10.4510/30/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748933359 CMS
Allergan, Inc. $9.4210/28/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 723387209 CMS
Neurocrine Biosciences, Inc. $336.0010/28/2020 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 748933357 CMS
Sunovion Pharmaceuticals Inc. $26.9810/26/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748484761 CMS
Vanda Pharmaceuticals Inc. $16.9810/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 735138841 CMS
Neurocrine Biosciences, Inc. $1,119.0010/20/2020 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 748933355 CMS
Allergan, Inc. $13.9910/16/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 723387199 CMS
Allergan, Inc. $1,760.0010/16/2020 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 723387203 CMS
Allergan, Inc. $17.0610/16/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 723387205 CMS
Allergan, Inc. $16.9810/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 723387197 CMS
Janssen Pharmaceuticals, Inc $22.0710/14/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 719173993 CMS
Allergan, Inc. $16.9110/13/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 723387193 CMS
ITI, Inc. $18.9610/13/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 750035567 CMS
Allergan, Inc. $24.0910/09/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 723387187 CMS
Allergan, Inc. $1,760.0010/09/2020 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 723387189 CMS
Allergan, Inc. $1,760.0010/08/2020 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 723387181 CMS
Allergan, Inc. $24.8810/08/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 723387185 CMS
Allergan, Inc. $1,760.0010/07/2020 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 723387177 CMS
Allergan, Inc. $24.8010/07/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 723387179 CMS
ITI, Inc. $16.5610/07/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 750035565 CMS
Neurocrine Biosciences, Inc. $1,119.0010/06/2020 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 748933353 CMS
Janssen Pharmaceuticals, Inc $22.8210/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 719173991 CMS
Sunovion Pharmaceuticals Inc. $25.1810/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748484719 CMS
Otsuka America Pharmaceutical, Inc. $24.2010/02/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748766127 CMS
Allergan, Inc. $15.9609/30/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 723387173 CMS
Otsuka America Pharmaceutical, Inc. $19.0509/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748766123 CMS
Vanda Pharmaceuticals Inc. $19.7809/28/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 735138835 CMS
Sunovion Pharmaceuticals Inc. $25.6209/25/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748484731 CMS
Allergan, Inc. $24.8109/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 723387169 CMS
Allergan, Inc. $1,760.0009/24/2020 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 723387171 CMS
Alkermes, Inc. $23.3409/23/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 736978051 CMS
ITI, Inc. $16.4009/21/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 750035563 CMS
Neurocrine Biosciences, Inc. $1,119.0009/18/2020 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 748933351 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $116,795.15 220
PY2020 $34,758.87 138
PY2021 $102,353.55 237
PY2022 $123,366.73 242
PY2023 $84,091.49 221
PY2024 $63,718.11 222
PY2025 $98,495.98 260

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.