NPPES file of Aug 9, 2026

Aaron Walter Koons, OD

Optometrist · Hagerstown, MD

Aaron Walter Koons, OD is an optometrist with a practice address in Hagerstown, Maryland, and NPI 1831838903, issued on May 27, 2022. Check the license (Maryland TA2850, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831838903
Name
Aaron Walter Koons
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
TA2850 MD
Self-reported in NPPES; status is on the state search
Practice location
17233 Cole RD, Hagerstown, MD 21740
Phone
(240) 329-4699
Enumerated
May 27, 2022
Record last updated
May 27, 2022
Medicare enrollment
Enrolled (PECOS I20240503001122); accepts Medicare assignment
Medical or professional school
Ohio State University - College Of Optometry, 2022
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 17233 Cole RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Madiha Amjed, O.D.Optometrist1831572379
  2. Trang Tran, ODOptometrist1184145252

Verify Aaron Walter Koons in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license TA2850
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Maryland license search

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87% fewer Medicare Part D claims than the average optometrist in 2024

36 Medicare Part D claims for 21 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.

  1. Aaron Koons36
  2. Specialty average277

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.

Bills Medicare through one group practice

  1. Ludwick Eye Center, LtdHagerstown, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Aaron Walter Koons among 924 optometrist records in Maryland

Aaron Walter Koons, OD is one of 924 optometrist records with a practice address in Maryland. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 91% of them.

  • NPI issued2022 · 91% of these records are older, 7% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2022 · median 2005 among the 517 with a school on file
  • Record last updated2022 · 63% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

31 optometrist records list a practice address in Hagerstown

They are 31 of the 2,414 NPPES records with a practice address in Hagerstown, and 924 optometrist records in Maryland.

The 8 optometrist records with the nearest ZIP codes

  1. Madiha Amjed, O.D.Hagerstown, MD 217401831572379
  2. Philip Berry, ODHagerstown, MD 217401548361124
  3. Stanley Bowser, ODHagerstown, MD 217401174691711
  4. Steven Chado, ODHagerstown, MD 217401154371532
  5. Robert Glasser, ODHagerstown, MD 217401376611970
  6. David Holland, ODHagerstown, MD 217401134417025
  7. Nagaraju Kemidi, O.D.Hagerstown, MD 217401962631838
  8. Jerzy Kornilow, O.D.Hagerstown, MD 217401275507956

Common questions

What is Aaron Walter Koons, OD's NPI number?

Aaron Walter Koons, OD's National Provider Identifier (NPI) is 1831838903, issued on May 27, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Aaron Walter Koons, OD located?

The NPPES record lists a practice address at 17233 Cole RD, Hagerstown, MD, 21740. Phone: (240) 329-4699. Providers update this record themselves, so call before visiting.

How can I verify Aaron Walter Koons, OD's license?

NPPES lists Maryland license number TA2850, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

How much does Aaron Walter Koons, OD prescribe under Medicare Part D?

In 2024, Aaron Walter Koons, OD had 36 Medicare Part D claims for 21 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.