Michael Kremer, MD
Neurological Surgery · Holland, MINPI 1982646949
Payments from drug & device makers
What this record shows
The money is spread across several categories — speaking fees (44.4%), food and beverage and travel and lodging — rather than concentrated in one kind of arrangement. Wenzel Spine, Inc. accounts for 78.3% of it on its own, with 8 other manufacturers making up the rest. Reporting peaked in 2022 at $9,905 and has fallen 84.7% since, to $1,517 in 2025.
Across 32 payments — averaging $615.46 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Wenzel Spine, Inc.$15K
- Globus Medical$4K
- Johnson & Johnson$112
- AbbVie$72
- Abbott$56
- Sanara Medtech Inc.$28
- plus $56 from 3 others
Across 1 payment — averaging $250.00 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Globus Medical$250
What the payments were for
- Consulting fees$5003%
- Speaking & faculty fees$8,75044%
- Travel & lodging$4,21221%
- Food & beverage$6,23332%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Wenzel Spine, Inc. | 13 | $15,417 |
| Globus Medical | 8 | $3,953 |
| Johnson & Johnson | 1 | $112 |
| AbbVie | 2 | $72 |
| Abbott | 3 | $56 |
| Sanara Medtech Inc. | 2 | $28 |
| Nevro Corp. | 1 | $25 |
| Supernus Pharmaceuticals, Inc. | 1 | $20 |
| Titan Spine, LLC | 1 | $11 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- Varilift$10,611
- VariLift-LX$4,609
- SI-LOK$1,678
- ELSA, ELSA AL/ATP$909
- Excelsius - GPS$730
- ELSA$145
- SYNAPSE$112
How this compares
$19,695 in reported general payments places this provider in the 80th percentile of 256 neurological surgery providers in Michigan.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 52 | $496 |
| Tizanidine Hcl | 21 | $292 |
| Ketoconazole | 14 | $203 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 16 | $179 |
Paid to pharmacies, not to this prescriber.
Other neurological surgery in Holland
- Frank LamarcaAnn Arbor$4.8M
- Justin SingerGrand Rapids$944K
- Jayant JagannathanTroy$685K
- Timothy SpencerBattle Creek$543K
- Daniel FahimRoyal Oak$525K
- Daniel OrringerAnn Arbor$500K
- Vittorio MorrealeShelby Twp$439K
- Noojan KazemiAnn Arbor$406K
- Azam BasheerDetroit$405K
- Sonia EdenDetroit$329K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.