Darryl D. Mathewson, O.D.
Optometrist · Defiance, OH
Darryl D. Mathewson, O.D. is an optometrist with a practice address in Defiance, Ohio, and NPI 1952391278, issued on Oct 27, 2005. Check the license (Ohio 3876, as entered in NPPES) with the Ohio board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Darryl D. Mathewson
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 3876 OH
Self-reported in NPPES; status is on the state search - Practice location
- 417 4TH St, Defiance, OH 43512
- Phone
- (419) 782-9595
- Enumerated
- Oct 27, 2005
- Record last updated
- Nov 1, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (419) 782-0876
- Medicaid ID
- 0645092 OH
- Medicare enrollment
- Enrolled (PECOS I20100428000023); accepts Medicare assignment
- Medical or professional school
- Ohio State University - College Of Optometry, 1986
- Entity
- Type 1 · individual
8 nearest optometrist records → All 2,443 in Ohio → Look up another NPI →
Also registered at 417 4TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emily Niese, FNP-CFamily Nurse Practitioner1528781465
Verify Darryl D. Mathewson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Ohio board licenses this profession
Search for license 3876Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average optometrist in 2024
23 Medicare Part D claims for 18 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 48% of 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.
Bills Medicare through one group practice
- Professional Vision Services LLCDefiance, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Darryl D. Mathewson among 2,443 optometrist records in Ohio
Darryl D. Mathewson, O.D. is one of 2,443 optometrist records with a practice address in Ohio. 71% 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, 89% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1986 · median 2006 among the 1,466 with a school on file
- Record last updated2007 · 70% 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 Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 optometrist records list a practice address in Defiance
They are 12 of the 589 NPPES records with a practice address in Defiance, and 2,443 optometrist records in Ohio.
All 2,443 in Ohio → Every provider in Defiance → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Amy BrunswickDefiance, OH 435121356389506
- Robert Burris, O.D.Defiance, OH 435121932245909
- Jeffrey Fogt, ODDefiance, OH 435121427041342
- Julie Frederick, O.D.Defiance, OH 435121841343415
- Heidi Lacey, O.D.Defiance, OH 435121417923244
- Daniel Maxwell, ODDefiance, OH 435121881682771
- Daniel Meffley, O.D.Defiance, OH 435121215905294
- Thomas Sandy, O.D.Defiance, OH 435121174591705
Common questions
What is Darryl D. Mathewson, O.D.'s NPI number?
Darryl D. Mathewson, O.D.'s National Provider Identifier (NPI) is 1952391278, issued on Oct 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Darryl D. Mathewson, O.D. located?
The NPPES record lists a practice address at 417 4TH St, Defiance, OH, 43512. Phone: (419) 782-9595. Providers update this record themselves, so call before visiting.
How can I verify Darryl D. Mathewson, O.D.'s license?
NPPES lists Ohio license number 3876, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.
How much does Darryl D. Mathewson, O.D. prescribe under Medicare Part D?
In 2024, Darryl D. Mathewson, O.D. had 23 Medicare Part D claims for 18 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.