Christa L. Walling, O.D.
Optometrist · Greenfield, IN
Christa L. Walling, O.D. is an optometrist with a practice address in Greenfield, Indiana, and NPI 1306833421, issued on Oct 4, 2005. Check the license (Indiana 18003127A, as entered in NPPES) with the Indiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Christa L. Walling
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 18003127A IN
Self-reported in NPPES; status is on the state search - Practice location
- 1451 Jason RD, Greenfield, IN 46140
- Phone
- (317) 462-6601
- Enumerated
- Oct 4, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (317) 462-6625
- Medicare enrollment
- Enrolled (PECOS I20100324000992); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,578 in Indiana → Look up another NPI →
Also registered at 1451 Jason RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nicholas McColley, O.D.Optometrist1104277920
- Caitlin Parks, ODOptometrist1083456545
- Elaine Scott, O.D.Optometrist1184611295
Verify Christa L. Walling in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Indiana board licenses this profession
Search for license 18003127ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.6 times the Medicare Part D claims of the average optometrist in 2024
734 Medicare Part D claims for 249 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Latanoprost181 claims
- Timolol Maleate77 claims
- Restasis55 claims
- Dorzolamide-Timolol46 claims
- Xdemvy43 claims
- Travoprost40 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.
The MIPS final score for 2023 (Medicare payment program): 0 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $856.64
42 payments; by number, the most common kind was food and beverage; the largest payer was Oyster Point Pharma, Inc. 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 2 group practices
- Hancock Eye Associates PCGreenfield, IN
- Mccolley Eyecare Professional CorporationMcCordsville, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christa L. Walling among 1,578 optometrist records in Indiana
Christa L. Walling, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 85% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2001 · median 2008 among the 1,014 with a school on file
- Record last updated2026 · 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).
11 optometrist records list a practice address in Greenfield
They are 11 of the 593 NPPES records with a practice address in Greenfield, and 1,578 optometrist records in Indiana.
All 1,578 in Indiana → Every provider in Greenfield → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Michael ElsburyGreenfield, IN 461401245380492
- Duane ElsburyGreenfield, IN 461401811371503
- Paul Joyner, ODGreenfield, IN 461401417006354
- Monica Kowaleski, O.D.Greenfield, IN 461401194832923
- Nicholas McColley, O.D.Greenfield, IN 461401104277920
- Caitlin Parks, ODGreenfield, IN 461401083456545
- Stacey Pruitt, ODGreenfield, IN 461401700837069
- Elaine Scott, O.D.Greenfield, IN 461401184611295
Common questions
What is Christa L. Walling, O.D.'s NPI number?
Christa L. Walling, O.D.'s National Provider Identifier (NPI) is 1306833421, issued on Oct 4, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Christa L. Walling, O.D. located?
The NPPES record lists a practice address at 1451 Jason RD, Greenfield, IN, 46140. Phone: (317) 462-6601. Providers update this record themselves, so call before visiting.
How can I verify Christa L. Walling, O.D.'s license?
NPPES lists Indiana license number 18003127A, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.
How much does Christa L. Walling, O.D. prescribe under Medicare Part D?
In 2024, Christa L. Walling, O.D. had 734 Medicare Part D claims for 249 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
What is Christa L. Walling, O.D.'s MIPS final score?
The 2023 MIPS final score is 0 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.