Michelle Lemberger, MD
Obstetrics & Gynecology · Knoxville, TNNPI 1235131434
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 92.0% of the total across 44 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. 14 manufacturers reported payments, led by AbbVie at 33.8% of the total. Reporting peaked in 2019 at $396 and has fallen 66.2% since, to $134 in 2021. That places this record below the midpoint for obstetrics & gynecology clinicians in TN, where the typical reported total is $906.
Across 44 payments — averaging $15.93 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$237
- Amgen$111
- Avion Pharmaceuticals$49
- Bayer$43
- AMAG Pharmaceuticals, Inc.$42
- Lupin Inc.$41
- plus $179 from 8 others
What the payments were for
- Food & beverage$64592%
- Education$568%
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 |
|---|---|---|
| AbbVie | 13 | $237 |
| Amgen | 6 | $111 |
| Avion Pharmaceuticals | 4 | $49 |
| Bayer | 3 | $43 |
| AMAG Pharmaceuticals, Inc. | 3 | $42 |
| Lupin Inc. | 3 | $41 |
| Coopersurgical, Inc. | 2 | $34 |
| Radius Health, Inc. | 2 | $33 |
| Therapeuticsmd, Inc. | 2 | $30 |
| Novo Nordisk | 2 | $26 |
| Mayne Pharma Commercial LLC | 1 | $15 |
| Exeltis, USA Inc. | 1 | $15 |
| Hologic Sales And Service, LLC | 1 | $14 |
| Minerva Surgical, Inc | 1 | $13 |
How this compares
$701 in reported general payments places this provider in the 45th percentile of 763 obstetrics & gynecology providers in Tennessee.
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 |
|---|---|---|
| Estradiol | 40 | $1,897 |
Paid to pharmacies, not to this prescriber.
Other obstetrics & gynecology in Knoxville
- Larry FieldsKnoxville$323K
- Ramona ScottKnoxville$25K
- Lowell McCauleyKnoxville$21K
- Michael BullenKnoxville$13K
- Rosalind CadiganKnoxville$10K
- Nikki ZiteKnoxville$10K
- Kimberly RobertsKnoxville$9K
- Sudha NairKnoxville$8K
- Grover MayJohnson City$916K
- John GreenElizabethton$878K
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.