Michael Chafty, MD
Pain Medicine · Kalamazoo, MINPI 1245205111
Payments from drug & device makers
Across 106 payments — averaging $18.36 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Abbott$335
- Collegium Pharmaceutical, Inc.$257
- AbbVie$216
- Medtronic$181
- Amgen$148
- Nevro Corp.$128
- plus $681 from 15 others
What the payments were for
- Food & beverage$1,947100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
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 |
|---|---|---|
| Abbott | 17 | $335 |
| Collegium Pharmaceutical, Inc. | 14 | $257 |
| AbbVie | 11 | $216 |
| Medtronic(2 entities) | 10 | $181 |
| Amgen(2 entities) | 9 | $148 |
| Nevro Corp. | 5 | $128 |
| IBSA Pharma Inc. | 7 | $100 |
| Pfizer | 5 | $93 |
| Biohaven Pharmaceutical Holding Company Ltd. | 4 | $73 |
| Lilly USA, LLC | 3 | $64 |
| Biodelivery Sciences International, Inc. | 4 | $61 |
| Boston Scientific | 3 | $61 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 3 | $43 |
| Supernus Pharmaceuticals, Inc. | 2 | $40 |
| Vertical Pharmaceuticals, LLC | 2 | $35 |
| Assertio Therapeutics, Inc. | 2 | $34 |
| Redhill Biopharma Inc. | 1 | $16 |
| Arbor Pharmaceuticals, Inc. | 1 | $16 |
| Pacira Therapeutics, Inc. | 1 | $15 |
| Teva Pharmaceuticals USA, Inc. | 1 | $15 |
| Biohaven Pharmaceuticals, Inc. | 1 | $15 |
How this compares
$1,947 in reported general payments places this provider in the 45th percentile of 139 pain medicine 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 |
|---|---|---|
| OxycontinOxycodone Hcl | 12 | $16,695 |
| Gabapentin | 162 | $2,562 |
| Fentanyl | 20 | $2,398 |
| Hydrocodone-AcetaminophenHydrocodone/Acetaminophen | 63 | $1,119 |
| Pregabalin | 50 | $971 |
| Tramadol Hcl | 79 | $512 |
| Oxycodone-AcetaminophenOxycodone Hcl/Acetaminophen | 18 | $274 |
| Amitriptyline Hcl | 16 | $191 |
| Tizanidine Hcl | 18 | $161 |
| Methylprednisolone | 13 | $82 |
Paid to pharmacies, not to this prescriber.
Other pain medicine in Kalamazoo
- Joel SaperAnn Arbor$5.7M
- Harry SukumaranRochester Hills$308K
- Bindu Popat LewisGrand Rapids$135K
- Nasir KhatriFlint$133K
- Yijia ChuGrand Rapids$88K
- Mark MounayerSouthfield$85K
- Jeffrey RosenbergCanton$72K
- Alexander TurfeWyandotte$41K
- Eric KozfkayWyoming$28K
- Michael SikorskyBloomfield Hills$28K
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.