Marsha Howerton Engles, MD
Obstetrics & Gynecology · Tulsa, OKNPI 1790720456
Payments from drug & device makers
Across 182 payments — averaging $20.79 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$1K
- Intuitive Surgical$478
- Mayne Pharma Commercial LLC$300
- Pfizer$231
- Biohaven Pharmaceutical Holding Company Ltd.$222
- AMAG Pharmaceuticals, Inc.$218
- plus $1K from 23 others
What the payments were for
- Travel & lodging$47813%
- Food & beverage$3,20585%
- Education$832%
- Gifts$180%
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(2 entities) | 74 | $1,332 |
| Intuitive Surgical | 3 | $478 |
| Mayne Pharma Commercial LLC | 17 | $300 |
| Pfizer | 12 | $231 |
| Biohaven Pharmaceutical Holding Company Ltd. | 7 | $222 |
| AMAG Pharmaceuticals, Inc. | 9 | $218 |
| Exeltis, USA Inc. | 10 | $166 |
| Therapeuticsmd, Inc. | 8 | $107 |
| Agile Therapeutics, Inc. | 4 | $81 |
| Millicent US Inc | 5 | $71 |
| Hologic Sales And Service, LLC | 2 | $58 |
| Lupin Inc. | 3 | $55 |
| Astellas Pharma US Inc | 3 | $49 |
| Evofem Biosciences, Inc. | 3 | $47 |
| Merck | 3 | $46 |
| Biohaven Pharmaceuticals, Inc. | 2 | $39 |
| Organon | 2 | $38 |
| Exact Sciences | 2 | $35 |
| Duchesnay USA Incorporated | 2 | $34 |
| Currax Pharmaceuticals LLC | 2 | $27 |
| Sumitomo Pharma America, Inc. | 1 | $25 |
| Mission Pharmacal Company | 1 | $23 |
| Ascend Therapeutics US, LLC | 1 | $18 |
| Intra-sana Laboratories | 1 | $16 |
| Ardelyx, Inc. | 1 | $16 |
| Medtronic | 1 | $14 |
| Dermira, Inc. | 1 | $14 |
| Coopersurgical, Inc. | 1 | $13 |
| Mylan Pharmaceuticals Inc. | 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.
- Da Vinci Surgical System$443
- NEXTSTELLIS$125
- INTRAROSA$119
How this compares
$3,784 in reported general payments places this provider in the 75th percentile of 396 obstetrics & gynecology providers in Oklahoma.
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 | 56 | $1,972 |
| Estradiol (Twice Weekly)Estradiol | 12 | $1,146 |
| ValacyclovirValacyclovir Hcl | 21 | $565 |
| ProgesteroneProgesterone, Micronized | 19 | $545 |
| Fluconazole | 12 | $313 |
| Alendronate Sodium | 12 | $110 |
| Buspirone Hcl | 15 | $100 |
| Montelukast Sodium | 13 | $1 |
Paid to pharmacies, not to this prescriber.
Other obstetrics & gynecology in Tulsa
- Joseph NemcokTulsa$632K
- Calvin MonroeTulsa$219K
- Jay WilliamsonTulsa$130K
- Lori HubbardTulsa$41K
- Micah RelicTulsa$20K
- Bryan RoehlTulsa$15K
- Timmeni StevensTulsa$14K
- Rachel GibbsTulsa$12K
- Thomas LaneTulsa$11K
- Carlos GuevaraTulsa$11K
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.