Daniel Harker, O.D.
Optometrist · Lihue, HI
Daniel Harker, O.D. is an optometrist with a practice address in Lihue, Hawaii, and NPI 1841552940, issued on Jun 13, 2012. Check the license (Hawaii 746, as entered in NPPES) with the Hawaii board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Daniel Harker
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- 746 HI
14392 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4463 Pahee St Ste 206, Lihue, HI 96766
- Phone
- (808) 246-0110
- Enumerated
- Jun 13, 2012
- Entity
- Type 1 · individual
Also registered at 4463 Pahee St Ste 206
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kanayo Sakai, NPPsychiatric/Mental Health Nurse Practitioner1790222677
Verify Daniel Harker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Hawaii board licenses this profession
Search for license 746Check 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
238 Medicare Part D claims for 66 beneficiaries, against an average of 279 among the 32,314 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Latanoprost170 claims
- Cyclosporine26 claims
- Timolol Maleate11 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.
One hospital or facility affiliation
- Southern California Permanente Medical GroupSanta Ana, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
14 optometrist records list a Lihue practice address
They are 14 of the 644 NPPES records with a Lihue practice address, and 344 optometrist records in Hawaii.
All 14 in Lihue → All 344 in Hawaii → Every provider in Lihue →
Other optometrist records in Hawaii
- Yelissa Abbasi, O.D.Kapolei, HI1467870527
- Derrick Abe, O.D.Honolulu, HI1184676264
- Kellie AbeKailua Kona, HI1598242984
- Renee Allison, O.D.Honolulu, HI1184810558
- Calvin Alonzo, O.D.Honolulu, HI1033291968
- Amanda Antonino, O.D.Kapaa, HI1093070674
- David AnzaiKahului, HI1548323298
- Lizette Aquino-Bautista, ODWaipahu, HI1659065456
- Linda Arakaki, O.D.Waipahu, HI1699823815
- Jaren Ariyoshi, ODWailuku, HI1659258770
Common questions
What is Daniel Harker, O.D.'s NPI number?
Daniel Harker, O.D.'s National Provider Identifier (NPI) is 1841552940, issued on Jun 13, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Harker, O.D. located?
The NPPES record lists a practice address at 4463 Pahee St Ste 206, Lihue, HI, 96766. Phone: (808) 246-0110. Providers update this record themselves, so call before visiting.
How can I verify Daniel Harker, O.D.'s license?
NPPES lists Hawaii license number 746, as entered by the provider. Search the Hawaii board that licenses this profession; the NPPES record confirms identity only.
How much does Daniel Harker, O.D. prescribe under Medicare Part D?
In 2024, Daniel Harker, O.D. had 238 Medicare Part D claims for 66 beneficiaries; the average among optometrist prescribers was 279. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.