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

NISHAN MD TCHEKMEDYIAN

Allopathic & Osteopathic Physicians Internal Medicine Hematology & Oncology

NPI
1235450305
CMS profile
455625
Location
HUNTINGTON BEACH, CA

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

$11,546.56

52 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

PY2020 · entire year · sorted by reported total

Nature of paymentAmountRecords
Consulting Fee $10,570.00 7
Food and Beverage $901.23 41
Education $75.33 4

By paying entity

PY2020 · entire year · sorted by reported total

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

52 matching records · $11,546.56 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 52 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 52.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
PFIZER INC. $13.3412/16/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743813193 CMS
Ipsen Biopharmaceuticals, Inc $20.1712/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741942877 CMS
Exelixis Inc. $37.4512/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026737177921 CMS
Foundation Medicine, Inc. $12.2212/07/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026714558541 CMS
Eisai Inc. $24.7311/30/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026751251423 CMS
Janssen Biotech, Inc. $8.2611/18/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026719335961 CMS
AbbVie Inc. $21.4211/12/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026722153565 CMS
Bayer HealthCare Pharmaceuticals Inc. $19.1111/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026713616553 CMS
Eisai Inc. $16.8010/21/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026751258913 CMS
Pharmacyclics LLC, An AbbVie Company $20.0609/23/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026725674729 CMS
Bayer HealthCare Pharmaceuticals Inc. $21.6109/21/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026713647003 CMS
AMAG Pharmaceuticals, Inc. $23.6809/16/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026753010815 CMS
E.R. Squibb & Sons, L.L.C. $20.8808/26/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026727853767 CMS
Merck Sharp & Dohme Corporation $23.3708/14/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026747720385 CMS
PFIZER INC. $13.3408/14/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743813191 CMS
Merck Sharp & Dohme Corporation $20.9708/12/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026747724855 CMS
Janssen Biotech, Inc. $19.9208/04/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026719335959 CMS
Foundation Medicine, Inc. $1,000.0008/03/2020 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026714558539 CMS
AMAG Pharmaceuticals, Inc. $24.9707/30/2020 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026753010813 CMS
Karyopharm Therapeutics Inc. $22.2007/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026751732703 CMS
Amgen Inc. $3,570.0007/22/2020 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741460491 CMS
Janssen Biotech, Inc. $22.5407/22/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026719335957 CMS
Amgen Inc. $22.0607/08/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026741251075 CMS
Foundation Medicine, Inc. $1,000.0007/06/2020 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026714558535 CMS
Foundation Medicine, Inc. $1,000.0007/06/2020 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026714558537 CMS
Foundation Medicine, Inc. $1,500.0007/06/2020 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026714558543 CMS
Pharmacyclics LLC, An AbbVie Company $23.9907/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026725666991 CMS
PFIZER INC. $20.6406/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743733207 CMS
Merck Sharp & Dohme Corporation $21.9606/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026747723369 CMS
Pharmacyclics LLC, An AbbVie Company $21.7606/03/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026725670185 CMS
E.R. Squibb & Sons, L.L.C. $12.0005/21/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026727853713 CMS
Seagen Inc. $22.6705/13/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026732465459 CMS
Janssen Biotech, Inc. $14.2805/12/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026719335967 CMS
Janssen Biotech, Inc. $15.2405/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026719335955 CMS
Foundation Medicine, Inc. $1,000.0005/01/2020 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026714558531 CMS
Foundation Medicine, Inc. $1,500.0005/01/2020 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026714558533 CMS
Bayer HealthCare Pharmaceuticals Inc. $18.3404/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026713617223 CMS
Janssen Pharmaceuticals, Inc $18.8404/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026719335951 CMS
E.R. Squibb & Sons, L.L.C. $22.4403/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026727853697 CMS
GlaxoSmithKline, LLC. $16.6403/06/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026738688983 CMS
GENZYME CORPORATION $21.6603/04/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744011493 CMS
Janssen Biotech, Inc. $5.6702/28/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026719335953 CMS
Innate Pharma, Inc $13.2002/21/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026714290911 CMS
Janssen Biotech, Inc. $24.6402/18/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026719335965 CMS
ARRAY BIOPHARMA INC $12.0202/17/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743739459 CMS
Horizon Therapeutics plc $11.0601/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026721448071 CMS
PFIZER INC. $13.1401/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026743131041 CMS
Janssen Biotech, Inc. $28.5401/27/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026719335963 CMS
Celgene Corporation $126.5901/24/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026727853787 CMS
GENZYME CORPORATION $17.0401/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026744011477 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $25,971.45 103
PY2020 $11,546.56 52
PY2021 $15,460.78 34
PY2023 $17.77 1

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, 2023
Source files and profile matching
Source files
Dataset page · Bulk file · PY2019 , PY2020 , PY2021 , PY2023
Generated from
OP_DTL_GNRL_PGYR2023_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
NISHAN MD TCHEKMEDYIAN, NPI 1235450305. IndustryPayments, data edition 2026-07-26T04:22:22Z. https://industrypayments.org/provider/npi-1235450305.
APA 7
IndustryPayments. (2026). NISHAN MD TCHEKMEDYIAN, NPI 1235450305 (Data edition 2026-07-26T04:22:22Z) [Data set]. https://industrypayments.org/provider/npi-1235450305
Bluebook
NISHAN MD TCHEKMEDYIAN, NPI 1235450305, IndustryPayments (data edition 2026-07-26T04:22:22Z), https://industrypayments.org/provider/npi-1235450305.

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