Michael Alan Harshman, O.D.
Optometrist · Decatur, IN
Michael Alan Harshman, O.D. is an optometrist with a practice address in Decatur, Indiana, and NPI 1598844946, issued on Nov 6, 2006. Check the license (Indiana 18002484, as entered in NPPES) with the Indiana board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael Alan Harshman
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 18002484 IN
Self-reported in NPPES; status is on the state search - Practice location
- 815 South 13TH St., Decatur, IN 46733
- Phone
- (260) 724-4111
- Enumerated
- Nov 6, 2006
- Record last updated
- Jul 31, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (260) 724-4188
- Medicare enrollment
- Enrolled (PECOS I20110316000546); may accept Medicare assignment
- Medical or professional school
- Indiana University - School Of Optometry, 1990
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,578 in Indiana → Look up another NPI →
Verify Michael Alan Harshman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Indiana board licenses this profession
Search for license 18002484Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% more Medicare Part D claims than the average optometrist in 2024
527 Medicare Part D claims for 154 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Latanoprost132 claims
- Tobramycin-Dexamethasone101 claims
- Ketorolac Tromethamine100 claims
- Epinastine Hcl48 claims
- Timolol Maleate39 claims
- Lotemax Sm25 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.
Michael Alan Harshman among 1,578 optometrist records in Indiana
Michael Alan Harshman, 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 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 53% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1990 · median 2008 among the 1,014 with a school on file
- Record last updated2008 · 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).
2 optometrist records list a practice address in Decatur
They are 2 of the 145 NPPES records with a practice address in Decatur, and 1,578 optometrist records in Indiana.
All 1,578 in Indiana → Every provider in Decatur → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Ricky Baron, O.D.Decatur, IN 467331902893571
- Bart Benzinger, O.D.Columbia City, IN 467251902919582
- Angela Cotter, O.D.Columbia City, IN 467251033275102
- Kara Laughlin, O.D.Grabill, IN 467411073535373
- Ronald Longenbaugh, O.D.Columbia City, IN 467251043366057
- Ingrid McClain, ODColumbia City, IN 467251366420127
- Joseph Westrick, O.D.Columbia City, IN 467251326045931
- Janet Ashley, O.D.Huntington, IN 467501154450500
Common questions
What is Michael Alan Harshman, O.D.'s NPI number?
Michael Alan Harshman, O.D.'s National Provider Identifier (NPI) is 1598844946, issued on Nov 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Alan Harshman, O.D. located?
The NPPES record lists a practice address at 815 South 13TH St., Decatur, IN, 46733. Phone: (260) 724-4111. Providers update this record themselves, so call before visiting.
How can I verify Michael Alan Harshman, O.D.'s license?
NPPES lists Indiana license number 18002484, as entered by the provider. Search the Indiana board that licenses this profession; the NPPES record confirms identity only.
How much does Michael Alan Harshman, O.D. prescribe under Medicare Part D?
In 2024, Michael Alan Harshman, O.D. had 527 Medicare Part D claims for 154 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.