Ryan Watari, OD
Optometrist · Littleton, NH
Ryan Watari, OD is an optometrist with a practice address in Littleton, New Hampshire, and NPI 1437761731, issued on Aug 18, 2020. Check the license (New Hampshire 0123, as entered in NPPES) with the New Hampshire board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ryan Watari
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 0123 NH
Self-reported in NPPES; status is on the state search - Practice location
- 104 Meadow St, Littleton, NH 03561
- Phone
- (603) 444-2592
- Enumerated
- Aug 18, 2020
- Record last updated
- Aug 18, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (603) 444-6250
- Medicare enrollment
- Enrolled (PECOS I20200929002789); accepts Medicare assignment
- Medical or professional school
- New England College Of Optometry, 2020
- Entity
- Type 1 · individual
8 nearest optometrist records → All 293 in New Hampshire → Look up another NPI →
Also registered at 104 Meadow St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erica Griffin, ODOptometrist1275948135
- William Holmes, ODOptometrist1669544144
- Laura Karle, ODOptometrist1659997070
- Kyle Keyser, ODOptometrist1538714035
- Samuel Stack, ODOptometrist1114542149
- Kevin Stratton, ODOptometrist1285706762
Verify Ryan Watari in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
Search for license 0123Check 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
235 Medicare Part D claims for 71 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 57% of claims.
Most prescribed
- Latanoprost86 claims
- Prednisolone Acetate30 claims
- Timolol Maleate17 claims
- Brimonidine Tartrate13 claims
- Rhopressa13 claims
- Rocklatan11 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.
Industry payments in 2024: $109.30
1 payment: food and beverage; the largest payer was CooperVision Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Envision Eye Care, PLLCLittleton, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ryan Watari among 293 optometrist records in New Hampshire
Ryan Watari, OD is one of 293 optometrist records with a practice address in New Hampshire. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 83% of them.
- NPI issued2020 · 83% of these records are older, 13% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2020 · median 2007 among the 202 with a school on file
- Record last updated2020 · 67% 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 New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 optometrist records list a practice address in Littleton
They are 10 of the 304 NPPES records with a practice address in Littleton, and 293 optometrist records in New Hampshire.
All 293 in New Hampshire → Every provider in Littleton → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Erica Griffin, ODLittleton, NH 035611275948135
- William Holmes, ODLittleton, NH 035611669544144
- Laura Karle, ODLittleton, NH 035611659997070
- Kyle Keyser, ODLittleton, NH 035611538714035
- Samuel Stack, ODLittleton, NH 035611114542149
- Kevin Stratton, ODLittleton, NH 035611285706762
- Winnie Tseng, ODLittleton, NH 035611629140108
- Joel Tuite, O.D.Littleton, NH 035611912107285
Common questions
What is Ryan Watari, OD's NPI number?
Ryan Watari, OD's National Provider Identifier (NPI) is 1437761731, issued on Aug 18, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Ryan Watari, OD located?
The NPPES record lists a practice address at 104 Meadow St, Littleton, NH, 03561. Phone: (603) 444-2592. Providers update this record themselves, so call before visiting.
How can I verify Ryan Watari, OD's license?
NPPES lists New Hampshire license number 0123, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.
How much does Ryan Watari, OD prescribe under Medicare Part D?
In 2024, Ryan Watari, OD had 235 Medicare Part D claims for 71 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.