NPPES file of Aug 9, 2026

Justin Treat, OD

Optometrist · Yuba City, CA

Justin Treat, OD is an optometrist with a practice address in Yuba City, California, and NPI 1316553886, issued on Sep 21, 2020. Check the license (California 34689, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1316553886
Name
Justin Treat
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
34689 CA
Self-reported in NPPES; status is on the state search
Practice location
901 Maple Ave, Yuba City, CA 95991
Phone
(530) 674-8170
Enumerated
Sep 21, 2020
Record last updated
Sep 21, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(530) 674-5728
Medicare enrollment
Enrolled (PECOS I20200930002608); accepts Medicare assignment
Medical or professional school
New England College Of Optometry, 2020
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 901 Maple Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Bradley Hamar, ODOptometrist1073090346
  2. Ronald Kalayta, MDOphthalmology Physician1316932452
  3. Donald Schwellenbach, O.D.Optometrist1013123603

Verify Justin Treat in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 34689
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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7.0 times the Medicare Part D claims of the average optometrist in 2024

1,941 Medicare Part D claims for 522 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.

  1. Justin Treat1,941
  2. Specialty average277

Most prescribed

  1. Latanoprost946 claims
  2. Ofloxacin174 claims
  3. Dorzolamide-Timolol128 claims
  4. Azelastine Hcl118 claims
  5. Prednisolone Acetate110 claims
  6. Timolol Maleate78 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: $227.68

7 payments; by number, the most common kind was food and beverage; the largest payer was Sight Sciences, 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.

  1. Justin Treat$227.68
  2. Specialty average$769.99

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

  1. Peach Tree HealthcareMarysville, CA
  2. Ridge Eye Care IncYuba City, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Justin Treat among 8,308 optometrist records in California

Justin Treat, 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 2020, is newer than 84% of them.

  • NPI issued2020 · 84% of these records are older, 14% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2020 · median 2008 among the 3,573 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 California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

21 optometrist records list a practice address in Yuba City

They are 21 of the 1,726 NPPES records with a practice address in Yuba City, and 8,308 optometrist records in California.

The 8 optometrist records with the nearest ZIP codes

  1. David Bradley, O.D.Yuba City, CA 959911275504391
  2. Thomas Burk, O.D.Yuba City, CA 959911295895985
  3. Bradley Hamar, ODYuba City, CA 959911073090346
  4. Karl Hamm, O.D.Yuba City, CA 959911093852105
  5. Elizabeth Hankins, O.D.Yuba City, CA 959911841632643
  6. Thomas Sanders, ODYuba City, CA 959911336135086
  7. Donald Schwellenbach, O.D.Yuba City, CA 959911013123603
  8. Valliammai Subramanian, ODYuba City, CA 959911922837566

Common questions

What is Justin Treat, OD's NPI number?

Justin Treat, OD's National Provider Identifier (NPI) is 1316553886, issued on Sep 21, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Justin Treat, OD located?

The NPPES record lists a practice address at 901 Maple Ave, Yuba City, CA, 95991. Phone: (530) 674-8170. Providers update this record themselves, so call before visiting.

How can I verify Justin Treat, OD's license?

NPPES lists California license number 34689, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Justin Treat, OD prescribe under Medicare Part D?

In 2024, Justin Treat, OD had 1,941 Medicare Part D claims for 522 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.