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

GEORGE GRUNBERGER

Allopathic & Osteopathic Physicians Internal Medicine Endocrinology, Diabetes & Metabolism

NPI
1477558450
CMS profile
293935
Location
BLOOMFIELD HILLS, 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 · PY2021 · Entire year

$94,661.91

175 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

PY2021 · entire year · sorted by reported total

By paying entity

PY2021 · entire year · sorted by reported total

Page 2 of 4; records 51–100 of 175 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

GEORGE GRUNBERGER

NPI 1477558450 · CMS profile ID 293935

Allopathic & Osteopathic Physicians / Internal Medicine / Endocrinology, Diabetes & Metabolism

BLOOMFIELD HILLS, 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, PY2021; 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 4; records 51–100 of 175 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1477558450?year=2021&recipient=provider&page=2#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202

Cite these filtered records

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

Plain
GEORGE GRUNBERGER, NPI 1477558450, CMS profile ID 293935. General Payments, PY2021; 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 4; records 51–100 of 175 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1477558450?year=2021&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
APA 7
IndustryPayments. (2026). GEORGE GRUNBERGER, NPI 1477558450, CMS profile ID 293935. General Payments, PY2021; 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 4; records 51–100 of 175 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1477558450?year=2021&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202.
Bluebook
GEORGE GRUNBERGER, NPI 1477558450, CMS profile ID 293935, IndustryPayments, General Payments, PY2021; 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 4; records 51–100 of 175 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/0380bbeb-aea1-58b6-b708-829f92a48202. https://industrypayments.org/provider/npi-1477558450?year=2021&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 · PY2021

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

General Payments · PY2021 · Physicians and non-physician practitioners · CMS publication 2026-06-30

175 matching records · $94,661.91 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 175 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 175.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Nevro Corp. $89.7310/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 832303879 CMS
AstraZeneca Pharmaceuticals LP $134.2609/30/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829521361 CMS
Novo Nordisk Inc $1,020.0009/30/2021 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 811206547 CMS
Medtronic, Inc. $2,000.0009/29/2021 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 815524245 CMS
Zimmer Biomet Holdings, Inc. $37.4809/22/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833954429 CMS
AstraZeneca Pharmaceuticals LP $16.5709/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 829921023 CMS
Abbott Laboratories $70.2509/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833798157 CMS
Abbott Laboratories $2,968.7509/16/2021 Compensation for serving as faculty or as a speaker for a medical education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833798159 CMS
Abbott Laboratories $8.2909/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833798161 CMS
Abbott Laboratories $11.0609/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833798163 CMS
Abbott Laboratories $10.4409/16/2021 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833798165 CMS
Abbott Laboratories $52.0009/16/2021 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833798167 CMS
Abbott Laboratories $155.3109/16/2021 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833798169 CMS
Lilly USA, LLC $14.6809/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 819165119 CMS
MannKind Corporation $16.6709/13/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 821057859 CMS
Esperion Therapeutics, Inc. $130.6509/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 838303395 CMS
Abbott Laboratories $365.5409/08/2021 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833798171 CMS
Lilly USA, LLC $17.8609/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 818554629 CMS
Medtronic, Inc. $128.5909/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 827198299 CMS
SANOFI-AVENTIS U.S. LLC $22.8409/08/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 843511309 CMS
Nevro Corp. $11.1809/02/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 832303893 CMS
Abbott Laboratories $1,662.5009/01/2021 Compensation for serving as faculty or as a speaker for a medical education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833798175 CMS
DEXCOM, INC. $14.2508/31/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 845279399 CMS
AbbVie Inc. $16.2408/29/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 794684393 CMS
Abbott Laboratories $232.3608/27/2021 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833798173 CMS
Abbott Laboratories $113.3508/26/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 833798155 CMS
LifeScan, Inc. $17.0208/19/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 845333247 CMS
Novo Nordisk Inc $16.3308/17/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811351471 CMS
Amarin Pharma Inc. $16.1308/16/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 815210077 CMS
Lilly USA, LLC $600.0008/12/2021 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 819076971 CMS
Novo Nordisk Inc $19.0408/12/2021 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811206542 CMS
Novo Nordisk Inc $124.9908/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811351467 CMS
Novo Nordisk Inc $2,600.0008/12/2021 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 811553627 CMS
Lilly USA, LLC $19.5008/11/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 819139529 CMS
Novo Nordisk Inc $19.5508/10/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811351459 CMS
Lilly USA, LLC $1,200.0008/06/2021 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 818554631 CMS
Novo Nordisk Inc $17.6308/04/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 810822755 CMS
Becton, Dickinson and Company $17.6807/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 836110461 CMS
Novo Nordisk Inc $74.7907/28/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 810681599 CMS
Novo Nordisk Inc $40.3207/28/2021 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 811206537 CMS
Novo Nordisk Inc $2,600.0007/28/2021 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 811411801 CMS
Lilly USA, LLC $26.8807/23/2021 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 819170349 CMS
Lilly USA, LLC $2,400.0007/22/2021 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 819102451 CMS
Lilly USA, LLC $900.0007/22/2021 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 819102455 CMS
DEXCOM, INC. $89.0307/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 845279395 CMS
DEXCOM, INC. $46.1507/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 845279397 CMS
LifeScan, Inc. $9.8707/21/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 845333129 CMS
Lilly USA, LLC $21.1907/20/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 819102459 CMS
Clarus Therapeutics Inc. $20.1407/14/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 855026095 CMS
RECORDATI_RARE_DISEASES_INC. $17.9107/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 831402765 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $226,028.96 309
PY2020 $94,424.90 197
PY2021 $94,661.91 175
PY2022 $180,714.86 298
PY2023 $103,358.95 200
PY2024 $92,754.74 193
PY2025 $138,825.14 239

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.