Joy Natalie Carroll, M.D.
Ophthalmology Physician · Ames, IA
Joy Natalie Carroll, M.D. is an ophthalmology physician with a practice address in Ames, Iowa, and NPI 1649699141, issued on Apr 11, 2014. Check the license (Iowa 44880, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Joy Natalie Carroll
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 44880 IA
Self-reported in NPPES; status is on the state search - Practice location
- 1128 Duff Avenue, Ames, IA 50010
- Phone
- (515) 239-4460
- Enumerated
- Apr 11, 2014
- Record last updated
- Oct 27, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (515) 956-4145
- Medicare enrollment
- Enrolled (PECOS I20180618001271); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 2014
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 220 in Iowa → Look up another NPI →
Also registered at 1128 Duff Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tracy Kangas, MD PHDOphthalmology Physician1881662484
Verify Joy Natalie Carroll in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license 44880Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% fewer Medicare Part D claims than the average ophthalmology physician in 2024
1,466 Medicare Part D claims for 339 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.
Most prescribed
- Latanoprost309 claims
- Moxifloxacin262 claims
- Prednisolone Acetate250 claims
- Ketorolac Tromethamine200 claims
- Dorzolamide-Timolol82 claims
- Restasis61 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $20.38
1 payment: food and beverage; the largest payer was Tarsus Pharmaceuticals, Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Mcfarland Clinic PCAmes, IA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joy Natalie Carroll among 220 ophthalmology physician records in Iowa
Joy Natalie Carroll, M.D. is one of 220 ophthalmology physician records with a practice address in Iowa. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 71% of them.
- NPI issued2014 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2014 · median 2006 among the 123 with a school on file
- Record last updated2020 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Iowa
There are 220 ophthalmology physician records in Iowa.
All 220 in Iowa → Every provider in Ames → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Steven Anderson, MDAmes, IA 500101942288717
- Nicolas Hamouche, M.D.Ames, IA 500101922097252
- Tracy Kangas, MD PHDAmes, IA 500101881662484
- Linda Lehman, M.D.Ames, IA 500101194715896
- Nicole Morrow, MDAmes, IA 500101396364956
- Louis Scallon, MDAmes, IA 500101497747299
- Kenneth Talbert, M.D.Ames, IA 500101659352094
- Ryan Vincent, M.D.Ames, IA 500101700094109
Common questions
What is Joy Natalie Carroll, M.D.'s NPI number?
Joy Natalie Carroll, M.D.'s National Provider Identifier (NPI) is 1649699141, issued on Apr 11, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Joy Natalie Carroll, M.D. located?
The NPPES record lists a practice address at 1128 Duff Avenue, Ames, IA, 50010. Phone: (515) 239-4460. Providers update this record themselves, so call before visiting.
How can I verify Joy Natalie Carroll, M.D.'s license?
NPPES lists Iowa license number 44880, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joy Natalie Carroll, M.D. prescribe under Medicare Part D?
In 2024, Joy Natalie Carroll, M.D. had 1,466 Medicare Part D claims for 339 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.