Timothy Hammill, OD
Optometrist · Redlands, CA
Timothy Hammill, OD is an optometrist with a practice address in Redlands, California, and NPI 1457932097, issued on Apr 15, 2021. Check the license (California OPT35322-TLG, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Timothy Hammill
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- OPT35322-TLG CA
Self-reported in NPPES; status is on the state search - Practice location
- 1845 W Redlands Blvd Ste 101, Redlands, CA 92373
- Phone
- (909) 363-1450
- Enumerated
- Apr 15, 2021
- Record last updated
- Jun 13, 2024
- Medicare enrollment
- Enrolled (PECOS I20221219002112); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 8,308 in California → Look up another NPI →
Also registered at 1845 W Redlands Blvd Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Diggory, O.D.Optometrist1255887857
- Serene Koudsi, ODOptometrist1750275095
- Priscilla Luke, MDOphthalmology Physician1902003213
- Paymohn Mahdavi, M.D.Retina Specialist (Ophthalmology) Physician1295095669
- Madeline Padron, ODOptometrist1194651257
- Stella Tu, ODOptometrist1639767940
Verify Timothy Hammill in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license OPT35322-TLGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8.5 times the Medicare Part D claims of the average optometrist in 2024
2,352 Medicare Part D claims for 663 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Latanoprost913 claims
- Brimonidine Tartrate213 claims
- Dorzolamide-Timolol210 claims
- Prednisolone Acetate161 claims
- Timolol Maleate153 claims
- Moxifloxacin100 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: $554.77
7 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas 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 2 group practices
- Azul Vision IncRedlands, CA
- California Eye Specialists Medical Group IncRedlands, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy Hammill among 8,308 optometrist records in California
Timothy Hammill, OD is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 86% of them.
- NPI issued2021 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated2022 · median 2008 among the 3,573 with a school on file
- Record last updated2024 · 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in California
There are 8,308 optometrist records in California.
All 8,308 in California → Every provider in Redlands → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Matthew Diggory, O.D.Redlands, CA 923731255887857
- Bruce Greene, O.D.Redlands, CA 923731053436410
- Diana Hanna, ODRedlands, CA 923731073281762
- Lewis Kemmerer, ODRedlands, CA 923731942242912
- Steven Kleen, O.D.Redlands, CA 923731063497741
- Serene Koudsi, ODRedlands, CA 923731750275095
- Matthew Moraton, ODRedlands, CA 923731992219133
- Gayle Reis, ODRedlands, CA 923731164484259
Common questions
What is Timothy Hammill, OD's NPI number?
Timothy Hammill, OD's National Provider Identifier (NPI) is 1457932097, issued on Apr 15, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Hammill, OD located?
The NPPES record lists a practice address at 1845 W Redlands Blvd Ste 101, Redlands, CA, 92373. Phone: (909) 363-1450. Providers update this record themselves, so call before visiting.
How can I verify Timothy Hammill, OD's license?
NPPES lists California license number OPT35322-TLG, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Timothy Hammill, OD prescribe under Medicare Part D?
In 2024, Timothy Hammill, OD had 2,352 Medicare Part D claims for 663 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.