Healthcare provider profile · identity verified

Tatyana Grinchenko, DO

Allopathic & Osteopathic Physicians|Internal Medicine|Rheumatology · WAYNE, NJ · NPI 1770627713

Profile state: payments and partd Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

CMS Open Payments records show Tatyana Grinchenko, DO received $1,828.65 in general payments during 2025 across 120 reported records.

Amgen Inc. accounted for 20.9% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 25 associated products.

A separate comparison found the same explicitly named product in public Medicare Part D data: Enbrel, Orencia, Otezla, Prolia.

Amgen Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ENBREL as an associated drug or biological on 9330 records involving 2094 distinct recipient NPIs. Public Medicare Part D data also shows 11 claims for Enbrel by this doctor in 2024.

Amgen Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported OTEZLA as an associated drug or biological on 177267 records involving 48600 distinct recipient NPIs. Public Medicare Part D data also shows 42 claims for Otezla by this doctor in 2024.

Amgen Inc. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported PROLIA as an associated drug or biological on 20867 records involving 11744 distinct recipient NPIs. Public Medicare Part D data also shows 98 claims for Prolia by this doctor in 2024.

E.R. Squibb & Sons, L.L.C. reported payments to this doctor in 2025. Across the 2025 Open Payments General Payment records loaded for this analysis, that same reporting entity reported ORENCIA as an associated drug or biological on 10404 records involving 2463 distinct recipient NPIs. Public Medicare Part D data also shows 13 claims for Orencia by this doctor in 2024.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

$1,828.65

120 reported records · 17 companies

Separate record types

Research & Ownership

Research Payments (direct recipient): not present in the loaded data

Associated Research Funding (for example, named PI): not present in the loaded data

Ownership / Investment: not present in the loaded data

These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.

Who paid this doctor?

Companies in 2025 General Payments

Reported companyCanonical companyAmountShareRecordsYear
Amgen Inc. Unresolved — no canonical attribution shown $382.3420.9%282025
ABBVIE INC. Unresolved — no canonical attribution shown $257.8114.1%182025
UCB, Inc. Unresolved — no canonical attribution shown $255.0513.9%172025
ANI Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $192.7110.5%112025
Novartis Pharmaceuticals Corporation Unresolved — no canonical attribution shown $173.639.5%92025
Janssen Biotech, Inc. Unresolved — no canonical attribution shown $138.167.6%112025
Organon LLC Unresolved — no canonical attribution shown $133.387.3%82025
Invivyd Inc Unresolved — no canonical attribution shown $48.952.7%32025
Mallinckrodt Hospital Products Inc. Unresolved — no canonical attribution shown $46.352.5%32025
Sandoz Inc. Unresolved — no canonical attribution shown $42.992.4%22025
Alexion Pharmaceuticals, Inc. Unresolved — no canonical attribution shown $33.141.8%22025
PFIZER INC. Unresolved — no canonical attribution shown $31.251.7%22025
Radius Health, Inc. Unresolved — no canonical attribution shown $29.361.6%22025
GENZYME CORPORATION Unresolved — no canonical attribution shown $16.860.9%12025
DePuy Synthes Sales Inc. Unresolved — no canonical attribution shown $16.320.9%12025
E.R. Squibb & Sons, L.L.C. Unresolved — no canonical attribution shown $16.080.9%12025
GlaxoSmithKline, LLC. Unresolved — no canonical attribution shown $14.270.8%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Food and Beverage$1,813.79117
Education$14.863

A meal, consulting fee, royalty, and travel payment describe different kinds of reported relationships and should not be interpreted as equivalent.

Analysis 1 · Payment-linked products

Products named in Open Payments records

Reported productTypeReported companyRelated amount*RecordsYear
Bimzelx
Normalized: bimzelx
Biological UCB, Inc. $221.35 14 2025
Source payment records
RINVOQ
Normalized: rinvoq
Biological ABBVIE INC. $192.66 13 2025
Source payment records
EVENITY
Normalized: evenity
Biological Amgen Inc. $174.81 13 2025
Source payment records
COSENTYX
Normalized: cosentyx
Drug Novartis Pharmaceuticals Corporation $173.63 9 2025
Source payment records
TREMFYA
Normalized: tremfya
Drug Janssen Biotech, Inc. $138.16 11 2025
Source payment records
PURIFIED CORTROPHIN GEL
Normalized: purified cortrophin gel
Drug ANI Pharmaceuticals, Inc. $131.40 7 2025
Source payment records
HADLIMA
Normalized: hadlima
Drug Organon LLC $116.62 7 2025
Source payment records
SKYRIZI
Normalized: skyrizi
Biological ABBVIE INC. $100.92 7 2025
Source payment records
OTEZLA
Normalized: otezla
Drug Amgen Inc. $96.05 6 2025
Source payment records
SOVUNA
Normalized: sovuna
Drug ANI Pharmaceuticals, Inc. $61.31 4 2025
Source payment records
KRYSTEXXA
Normalized: krystexxa
Biological Amgen Inc. $59.65 6 2025
Source payment records
PROLIA
Normalized: prolia
Biological Amgen Inc. $55.97 4 2025
Source payment records
PEMGARDA
Normalized: pemgarda
Biological Invivyd Inc $48.95 3 2025
Source payment records
ENBREL
Normalized: enbrel
Biological Amgen Inc. $47.90 3 2025
Source payment records
ACTHAR
Normalized: acthar
Biological Mallinckrodt Hospital Products Inc. $46.35 3 2025
Source payment records
JUBBONTI
Normalized: jubbonti
Biological Sandoz Inc. $42.99 2 2025
Source payment records
STRENSIQ
Normalized: strensiq
Biological Alexion Pharmaceuticals, Inc. $33.14 2 2025
Source payment records
XELJANZ
Normalized: xeljanz
Drug PFIZER INC. $31.25 2 2025
Source payment records
Tymlos
Normalized: tymlos
Drug Radius Health, Inc. $29.36 2 2025
Source payment records
TAVNEOS
Normalized: tavneos
Drug Amgen Inc. $18.84 1 2025
Source payment records
UPLIZNA
Normalized: uplizna
Biological Amgen Inc. $17.24 1 2025
Source payment records
KEVZARA
Normalized: kevzara
Biological GENZYME CORPORATION $16.86 1 2025
Source payment records
ORTHOVISC
Normalized: orthovisc
Device DePuy Synthes Sales Inc. $16.32 1 2025
Source payment records
ORENCIA
Normalized: orencia
Biological E.R. Squibb & Sons, L.L.C. $16.08 1 2025
Source payment records
BENLYSTA
Normalized: benlysta
Biological GlaxoSmithKline, LLC. $14.27 1 2025
Source payment records

* Product-associated amounts are non-additive because one payment record may name more than one product.

These products were named on specific Open Payments records. A named product does not show that the payment influenced treatment or prescribing.

Public prescribing for products named in payments

Open Payments productPayment yearPart D brandPart D yearClaimsMatch methodSource
ENBREL
enbrel
2025 Enbrel 2024 11
Beneficiary count suppressed
exact normalized Medicare Part D
ORENCIA
orencia
2025 Orencia 2024 13
Beneficiary count suppressed
exact normalized Medicare Part D
OTEZLA
otezla
2025 Otezla 2024 42
Beneficiary count suppressed
exact normalized Medicare Part D
PROLIA
prolia
2025 Prolia 2024 98 exact normalized Medicare Part D

The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.

Analysis 2 · Same-company prescribing overlap

Drugs reported in other payments from the same company that also appear in Medicare Part D

This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.

Paying companyPayment yearDrug reported by same entityOpen Payments evidencePart DClaimsBeneficiaries
Amgen Inc.
Exact reporting entity; no affiliate inference
2025 ENBREL
open payments reported associated product
CMS Open Payments — General Payments
9330 supporting records · 2094 recipient NPIs · example record 1226877474
Enbrel · 2024
Exact normalized brand match · 1 Part D row
11 suppressed by CMS
Amgen Inc.
Exact reporting entity; no affiliate inference
2025 OTEZLA
open payments reported associated product
CMS Open Payments — General Payments
177267 supporting records · 48600 recipient NPIs · example record 1226871616
Otezla · 2024
Exact normalized brand match · 1 Part D row
42 suppressed by CMS
Amgen Inc.
Exact reporting entity; no affiliate inference
2025 PROLIA
open payments reported associated product
CMS Open Payments — General Payments
20867 supporting records · 11744 recipient NPIs · example record 1226874448
Prolia · 2024
Exact normalized brand match · 1 Part D row
98 56
E.R. Squibb & Sons, L.L.C.
Exact reporting entity; no affiliate inference
2025 ORENCIA
open payments reported associated product
CMS Open Payments — General Payments
10404 supporting records · 2463 recipient NPIs · example record 1184378623
Orencia · 2024
Exact normalized brand match · 1 Part D row
13 suppressed by CMS

These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.

Public Medicare Part D data

Provider-and-drug rows loaded for 2024

BrandGenericClaimsBeneficiaries
Hydroxychloroquine SulfateHydroxychloroquine Sulfate17553
MethotrexateMethotrexate Sodium14554
ProliaDenosumab9856
Enbrel SureclickEtanercept53suppressed
Diclofenac SodiumDiclofenac Sodium5213
PrednisonePrednisone5022
Methotrexate SodiumMethotrexate Sodium/Pf45suppressed
OtezlaApremilast42suppressed
Alendronate SodiumAlendronate Sodium3916
Cimzia (2 Pack)Certolizumab Pegol36suppressed
BaclofenBaclofen2915
Ibandronate SodiumIbandronate Sodium29suppressed
Folic AcidFolic Acid25suppressed
LidocaineLidocaine23suppressed
Cyclobenzaprine HclCyclobenzaprine Hcl2211
LeflunomideLeflunomide21suppressed
Humira(Cf) PenAdalimumab20suppressed
Duloxetine HclDuloxetine Hcl19suppressed
Evenity (2 Syringes)Romosozumab-Aqqg18suppressed
Risedronate SodiumRisedronate Sodium18suppressed
MeloxicamMeloxicam16suppressed
SulfasalazineSulfasalazine14suppressed
Cosentyx Sensoready (2 Pens)Secukinumab13suppressed
Insulin SyringeSyringe And Needle,insulin,1ml13suppressed
OrenciaAbatacept/Maltose13suppressed
ColchicineColchicine12suppressed
EnbrelEtanercept11suppressed

Timeline

Payment and prescribing data by year

Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.

YearGeneral PaymentsMain payerExplicit productsCompany overlapsPart D coverage
2025 $1,828.65 · 120 records Amgen Inc. ACTHAR, BENLYSTA, Bimzelx, COSENTYX, ENBREL, EVENITY, HADLIMA, JUBBONTI, KEVZARA, KRYSTEXXA, ORENCIA, ORTHOVISC, OTEZLA, PEMGARDA, PROLIA, PURIFIED CORTROPHIN GEL, RINVOQ, SKYRIZI, SOVUNA, STRENSIQ, TAVNEOS, TREMFYA, Tymlos, UPLIZNA, XELJANZ 4
2024 Complete

Questions to ask

Questions you could discuss with your doctor

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Loaded source releases

DatasetYearPublicationSource
CMS Open Payments — General Payments 2025 2026-06-30 Original source
Medicare Part D Prescribers by Provider and Drug 2024 2026-05-06 Original source
NPPES Data Dissemination V2 current / reference data 2026-08-10 Original source

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

Full methodology · Questions & answers · Report a possible error