Allyson M. Bigham, O.D.
Optometrist · Evansville, IN
Allyson M. Bigham, O.D. is an optometrist with a practice address in Evansville, Indiana, and NPI 1356337661, issued on Sep 22, 2005. Check the license (Indiana 18003226A, as entered in NPPES) with the Indiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Allyson M. Bigham
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 18003226A IN
Self-reported in NPPES; status is on the state search - Practice location
- 2417 W Franklin St, Evansville, IN 47712
- Phone
- (812) 423-5000
- Enumerated
- Sep 22, 2005
- Record last updated
- Jan 21, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (812) 423-6838
- Medicaid ID
- 200441230A IN
- Medicare enrollment
- Enrolled (PECOS I20100304000396); may accept Medicare assignment
- Medical or professional school
- University Of Missouri St Louis - School Of Optometry, 2003
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,578 in Indiana → Look up another NPI →
Also registered at 2417 W Franklin St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephen Simpson, O.D.Optometrist1619963733
Verify Allyson M. Bigham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Indiana board licenses this profession
Search for license 18003226ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
15% fewer Medicare Part D claims than the average optometrist in 2024
235 Medicare Part D claims for 67 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Latanoprost146 claims
- Neomycin-Polymyxin-Dexameth24 claims
- Timolol Maleate20 claims
- Ketorolac Tromethamine12 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: $36.08
2 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
- Simpson And Bigham OD PartnershipEvansville, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Allyson M. Bigham among 1,578 optometrist records in Indiana
Allyson M. Bigham, 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
- Graduated2003 · median 2008 among the 1,014 with a school on file
- Record last updated2013 · 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).
66 optometrist records list a practice address in Evansville
They are 66 of the 4,352 NPPES records with a practice address in Evansville, and 1,578 optometrist records in Indiana.
All 1,578 in Indiana → Every provider in Evansville → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Christina Cottingham, ODEvansville, IN 477121275682452
- Morgan Hussmann, O.D.Evansville, IN 477121053519181
- Andrew Moore, O.D.Evansville, IN 477121619928363
- Todd Niemeier, O.D.Evansville, IN 477121093773400
- Kelli Payne, O.D.Evansville, IN 477121275083388
- Stephen Simpson, O.D.Evansville, IN 477121619963733
- Cora Talarigo, ODEvansville, IN 477121811581184
- Christine Verbeck, O. D.Evansville, IN 477121992777031
Common questions
What is Allyson M. Bigham, O.D.'s NPI number?
Allyson M. Bigham, O.D.'s National Provider Identifier (NPI) is 1356337661, issued on Sep 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Allyson M. Bigham, O.D. located?
The NPPES record lists a practice address at 2417 W Franklin St, Evansville, IN, 47712. Phone: (812) 423-5000. Providers update this record themselves, so call before visiting.
How can I verify Allyson M. Bigham, O.D.'s license?
NPPES lists Indiana license number 18003226A, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.
How much does Allyson M. Bigham, O.D. prescribe under Medicare Part D?
In 2024, Allyson M. Bigham, O.D. had 235 Medicare Part D claims for 67 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.