Donald Hardt, O.D.
Optometrist · Saipan, MP
Donald Hardt, O.D. is an optometrist with a practice address in Saipan, Northern Mariana Islands, and NPI 1609997477, issued on Apr 2, 2007. Check the license (Northern Mariana Islands 14, as entered in NPPES) with the Northern Mariana Islands board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Donald Hardt
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 14 MP
Self-reported in NPPES; status is on the state search - Practice location
- Amparo Building, Beach Road, Saipan, MP 96950
- Phone
- (670) 235-2030
- Enumerated
- Apr 2, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (670) 235-2033
- Medicaid ID
- 3R-014 MP
- Medicare enrollment
- Enrolled (PECOS I20040526000051); accepts Medicare assignment
- Medical or professional school
- University Of California - School Of Optometry, 1992
- Entity
- Type 1 · individual
2 nearest optometrist records → All 3 in Northern Mariana Islands → Look up another NPI →
Also registered at Amparo Building, Beach Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Hardt, O.D.Optometrist1437270295
Verify Donald Hardt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Northern Mariana Islands board licenses this profession
Search for license 14Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average optometrist in 2024
24 Medicare Part D claims for 15 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.
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
- Hardt Eye Clinic IncSaipan, MP
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
3 optometrist records list a practice address in Saipan
They are 3 of the 190 NPPES records with a practice address in Saipan, and 3 optometrist records in Northern Mariana Islands.
All 3 in Northern Mariana Islands → Every provider in Saipan → Optometrist nationwide →
The 2 optometrist records with the nearest ZIP codes
- David Hardt, O.D.Saipan, MP 969501437270295
- Mark Robertson, O.D.Saipan, MP 969501720142466
Common questions
What is Donald Hardt, O.D.'s NPI number?
Donald Hardt, O.D.'s National Provider Identifier (NPI) is 1609997477, issued on Apr 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Donald Hardt, O.D. located?
The NPPES record lists a practice address at Amparo Building, Beach Road, Saipan, MP, 96950. Phone: (670) 235-2030. Providers update this record themselves, so call before visiting.
How can I verify Donald Hardt, O.D.'s license?
NPPES lists Northern Mariana Islands license number 14, as entered by the provider. Search the Northern Mariana Islands board that licenses this profession; the NPPES record confirms identity only.
How much does Donald Hardt, O.D. prescribe under Medicare Part D?
In 2024, Donald Hardt, O.D. had 24 Medicare Part D claims for 15 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.