Healthcare provider profile · identity verified

Michael Christopher Greaser, MD

Allopathic & Osteopathic Physicians|Orthopaedic Surgery|Foot and Ankle Surgery · BELLAIRE, TX · NPI 1811156979

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 Michael Christopher Greaser, MD received $49,516.29 in general payments during 2025 across 72 reported records.

Stryker Corporation accounted for 77.3% of that reported general-payment amount.

The Open Payments records used for this analysis explicitly named 26 associated products.

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

Payment overview · 2025

General Payments

$49,516.29

72 reported records · 11 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
Stryker Corporation Unresolved — no canonical attribution shown $38,261.8477.3%482025
Medartis Inc. Unresolved — no canonical attribution shown $9,743.5719.7%42025
TREACE MEDICAL CONCEPTS, INC. Unresolved — no canonical attribution shown $390.960.8%52025
MedShape, Inc. Unresolved — no canonical attribution shown $335.270.7%42025
restor3d, inc. Unresolved — no canonical attribution shown $208.620.4%12025
Alafair Biosciences, Inc. Unresolved — no canonical attribution shown $172.440.3%22025
Medinc of Texas Unresolved — no canonical attribution shown $121.660.2%22025
Medline Industries LP Unresolved — no canonical attribution shown $91.420.2%12025
Voom Medical Devices, Inc. Unresolved — no canonical attribution shown $88.630.2%12025
VERTEX PHARMACEUTICALS INCORPORATED Unresolved — no canonical attribution shown $76.250.1%32025
Bioventus LLC Unresolved — no canonical attribution shown $25.630.1%12025

What were the payments for?

Payment categories

CategoryAmountRecords
Consulting Fee$28,438.8012
Travel and Lodging$9,572.6919
Compensation for serving as faculty or as a speaker for a medical education program$8,000.001
Food and Beverage$3,504.8040

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
PROSTEP
Normalized: prostep
Device Stryker Corporation $14,007.84 6 2025
Source payment records
PROPHECY
Normalized: prophecy
Device Stryker Corporation $10,873.13 5 2025
Source payment records
SALVATION
Normalized: salvation
Device Stryker Corporation $10,761.00 3 2025
Source payment records
APTUS
Normalized: aptus
Device Medartis Inc. $9,743.57 4 2025
Source payment records
VARIAX
Normalized: variax
Device Stryker Corporation $2,940.17 4 2025
Source payment records
ASNIS
Normalized: asnis
Device Stryker Corporation $1,560.00 1 2025
Source payment records
ANCHORAGE
Normalized: anchorage
Device Stryker Corporation $1,365.00 1 2025
Source payment records
FIXOS
Normalized: fixos
Device Stryker Corporation $1,365.00 1 2025
Source payment records
INFINITY
Normalized: infinity
Device Stryker Corporation $780.00 2 2025
Source payment records
DynaNail
Normalized: dynanail
Device MedShape, Inc. $335.27 4 2025
Source payment records
HOFFMANN
Normalized: hoffmann
Device Stryker Corporation $223.71 2 2025
Source payment records
TMC NANOPLASTY SYSTEM
Normalized: tmc nanoplasty system
Device TREACE MEDICAL CONCEPTS, INC. $217.63 2 2025
Source payment records
AUGMENT INJECTABLE
Normalized: augment injectable
Device Stryker Corporation $195.00 1 2025
Source payment records
AXSOS
Normalized: axsos
Device Stryker Corporation $195.00 1 2025
Source payment records
GAMMA
Normalized: gamma
Device Stryker Corporation $195.00 1 2025
Source payment records
INBONE
Normalized: inbone
Device Stryker Corporation $177.53 2 2025
Source payment records
INFINITY ADAPTIS
Normalized: infinity adaptis
Device Stryker Corporation $174.93 1 2025
Source payment records
PROSTEP MICA
Normalized: prostep mica
Device Stryker Corporation $173.16 2 2025
Source payment records
VersaWrap
Normalized: versawrap
Device Alafair Biosciences, Inc. $172.44 2 2025
Source payment records
REVCON INSTRUMENT KIT, STERILE
Normalized: revcon instrument kit sterile
Device Voom Medical Devices, Inc. $88.63 1 2025
Source payment records
JOURNAVX
Normalized: journavx
Drug VERTEX PHARMACEUTICALS INCORPORATED $76.25 3 2025
Source payment records
INVISION
Normalized: invision
Device Stryker Corporation $62.72 2 2025
Source payment records
BIOFOAM
Normalized: biofoam
Device Stryker Corporation $50.97 1 2025
Source payment records
GRAVITY SYNCHFIX
Normalized: gravity synchfix
Device Stryker Corporation $30.94 1 2025
Source payment records
EXOGEN ULTRASOUND BONE HEALING SYSTEM
Normalized: exogen ultrasound bone healing system
Device Bioventus LLC $25.63 1 2025
Source payment records
PERCUPLASTY TRAY
Normalized: percuplasty tray
Device TREACE MEDICAL CONCEPTS, INC. $14.31 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

No exact normalized or approved-alias overlap was found in the loaded Part D year. This does not mean the doctor never prescribed the product.

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.

No publishable same-company prescribing overlap was found in the loaded Part D year. This does not mean the doctor never prescribed a drug reported elsewhere by a paying company.

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
GabapentinGabapentin7755
Hydrocodone-AcetaminophenHydrocodone/Acetaminophen6351
Ondansetron HclOndansetron Hcl4943
Diclofenac SodiumDiclofenac Sodium3720
MethylprednisoloneMethylprednisolone3636
MeloxicamMeloxicam3518
CephalexinCephalexin3329
Acetaminophen-CodeineAcetaminophen With Codeine1816

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 $49,516.29 · 72 records Stryker Corporation ANCHORAGE, APTUS, ASNIS, AUGMENT INJECTABLE, AXSOS, BIOFOAM, DynaNail, EXOGEN ULTRASOUND BONE HEALING SYSTEM, FIXOS, GAMMA, GRAVITY SYNCHFIX, HOFFMANN, INBONE, INFINITY, INFINITY ADAPTIS, INVISION, JOURNAVX, PERCUPLASTY TRAY, PROPHECY, PROSTEP, PROSTEP MICA, REVCON INSTRUMENT KIT, STERILE, SALVATION, TMC NANOPLASTY SYSTEM, VARIAX, VersaWrap
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