Joy Natalie Carroll, M.D.
NPI 1649699141ActiveIndividual· Ophthalmology· Ames, IA
Ophthalmology (M.D.) in Ames, Iowa, trained at University of Iowa, Rj & L Carver College of Medicine (class of 2014). In 2024 Medicare paid $210,932 for 790 patients, and Part D covered 1,466 of their prescriptions, 68% of them generic. Alcon Vision LLC was the largest of 3 companies reporting payments in 2025, $177.57 in all, mostly food and beverage.
Overview
| NPI | 1649699141 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 11, 2014 |
| Last updated in NPPES | Oct 27, 2020 |
| Certified by provider | Oct 27, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | 44880 | IA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 790 |
|---|---|
| Services billed | 2,618 across 66 procedure codes |
| Paid by Medicare | $210,932 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,466 · 1,994 30-day fills |
|---|---|
| Patients | 339 |
| Total drug cost | $254,045 |
| Generic share | 68% of claims |
Education and affiliations
| Medical school | University of Iowa, Rj & L Carver College of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Ophthalmology |
Medical group
- McFarland Clinic PCAmes, IA · 363 clinicians
Hospital affiliations
- Mary Greeley Medical CenterAmes, IA
- St Anthony Regional Hospital & Nursing HomeCarroll, IA
Industry payments (Open Payments)
- 2025$177.57 · 8 payments from 3 companies
- 2024$20.38 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alcon Vision LLC | $87.77 | 5 |
| Tarsus Pharmaceuticals, Inc. | $47.00 | 2 |
| Amgen Inc. | $42.80 | 1 |
What the 2025 payments were for
- Food and Beverage$177.57 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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