Nathaniel Clark, O.D.
Optometrist · Indianapolis, IN
Nathaniel Clark, O.D. is an optometrist with a practice address in Indianapolis, Indiana, and NPI 1144712035, issued on Jun 5, 2018. Check the license (Indiana 18004088A, as entered in NPPES) with the Indiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Nathaniel Clark
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 18004088A IN
Self-reported in NPPES; status is on the state search - Practice location
- 105 S Raceway RD, Indianapolis, IN 46231
- Phone
- (317) 273-8474
- Enumerated
- Jun 5, 2018
- Record last updated
- Jun 5, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190205002766); accepts Medicare assignment
- Medical or professional school
- Indiana University - School Of Optometry, 2017
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,578 in Indiana → Look up another NPI →
Also registered at 105 S Raceway RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elizabeth Leburg, O.D.Optometrist1659668978
- Andrea Risley, ODOptometrist1982126033
- John Weida, D.D.S.Dentist1952536518
Verify Nathaniel Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Indiana board licenses this profession
Search for license 18004088ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
20% fewer Medicare Part D claims than the average optometrist in 2024
221 Medicare Part D claims for 86 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Latanoprost37 claims
- Azelastine Hcl28 claims
- Fluorometholone25 claims
- Restasis20 claims
- Cyclosporine19 claims
- Xiidra19 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: $464.33
9 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 34,453 providers of this specialty with any payment received $769.99 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
- Myeyedr Optometry OF Indiana LLCIndianapolis, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathaniel Clark among 1,578 optometrist records in Indiana
Nathaniel Clark, O.D. is one of 1,578 optometrist records with a practice address in Indiana. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 79% of them.
- NPI issued2018 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2017 · median 2008 among the 1,014 with a school on file
- Record last updated2018 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Indiana
There are 1,578 optometrist records in Indiana.
All 1,578 in Indiana → Every provider in Indianapolis → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Elizabeth Leburg, O.D.Indianapolis, IN 462311659668978
- Sean McGrath, ODIndianapolis, IN 462311841712841
- Elizabeth Meyers, ODIndpls, IN 462311497852115
- Julia Nolte, O.D.Indianapolis, IN 462311932264744
- Andrea Risley, ODIndianapolis, IN 462311982126033
- Erik Baker, O.D.Indianapolis, IN 462291104100957
- Keely Brouhard, ODIndianapolis, IN 462291023794591
- Allyson Brown, O.D.Indianapolis, IN 462291770861411
Common questions
What is Nathaniel Clark, O.D.'s NPI number?
Nathaniel Clark, O.D.'s National Provider Identifier (NPI) is 1144712035, issued on Jun 5, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel Clark, O.D. located?
The NPPES record lists a practice address at 105 S Raceway RD, Indianapolis, IN, 46231. Phone: (317) 273-8474. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel Clark, O.D.'s license?
NPPES lists Indiana license number 18004088A, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.
How much does Nathaniel Clark, O.D. prescribe under Medicare Part D?
In 2024, Nathaniel Clark, O.D. had 221 Medicare Part D claims for 86 beneficiaries; the average among optometrist prescribers was 277. 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.