TIMOTHY EDWARD HAMMILL OD
NPI 1457932097
Optometrist in San Bernardino, CA
About Timothy Edward Hammill Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TIMOTHY EDWARD HAMMILL OD (NPI 1457932097) is an individual optometrist in San Bernardino, California, licensed in California (OPT35322-TLG) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Timothy Edward Hammill Od is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Timothy Hammill reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Pasadena, CA 91107
- Reassigned Medicare billing, California enrollment
- 30 clinicians in this Medicare group
Pasadena, CA 91107
- Reassigned Medicare billing, California enrollment
- 70 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92404 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN BERNARDINO, CA 92404
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Timothy Hammill's NPI number?
The NPI number for Timothy Hammill is 1457932097. It was assigned to this individual provider in the NPPES registry on April 15, 2021.
Where is Timothy Hammill located?
Timothy Hammill practices at 399 E Highland Ave Ste 401, San Bernardino, CA 92404. The listed phone number is (909) 327-3118.
What is Timothy Hammill's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Timothy Hammill enrolled in Medicare?
Yes. Timothy Hammill is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Timothy Hammill's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Hammill reassigns Medicare benefits to 2 organizations: California Eye Specialists Medical Group, Inc (Pasadena, CA) and Azul Vision Inc. (Pasadena, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Timothy Hammill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Timothy Hammill accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 2 other insurers list Timothy Hammill as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Timothy Hammill was last updated on August 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 59 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Timothy Edward Hammill, OD · NPI 1457932097
Optometrist provider in San Bernardino, California. Individual provider, active in the CMS NPPES registry since April 15, 2021.
## Identity
- **NPI:** 1457932097 (Entity type: Individual)
- **Enumerated:** April 15, 2021
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** OPT35322-TLG (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 399 E HIGHLAND AVE STE 401, San Bernardino, CA 92404-3862
- **Phone:** (909) 327-3118
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): California Eye Specialists Medical Group, Inc (NPI 1699713099, Pasadena, CA); Azul Vision Inc. (NPI 1285247528, Pasadena, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** August 25, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1457932097) · Data from the CMS NPPES public registry.