Quick answers
- Does Tessa C. Johnston accept Medicare assignment?
- Yes. Medicare's clinician data says Tessa C. Johnston accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Tessa C. Johnston see?
- In 2024, CMS data shows 323 Original Medicare patients and 556 services for Tessa C. Johnston. This counts Original Medicare only and measures volume, not quality.
- What is Tessa C. Johnston's NPI number?
- 1174620835. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Tessa C. Johnston, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 323 |
|---|---|
| Services billed to Medicare | 556 |
| Different services or procedures | 20 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient complete exam of visual system (92014)203 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)61 services
- Photography of the retina (92250)52 services
- Established patient problem focused exam of visual system (92012)43 services
- Imaging of retina (92134)38 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol72%
- High blood pressure58%
- Arthritis42%
- Diabetes24%
- Ischemic heart disease17%
- Depression16%
Practice locations
Addresses where Tessa C. Johnston is enrolled with Medicare (CMS data updated October 2, 2026).
- 1408 E Barnett RdMedford, OR 97504 (541) 779‑2020
- 880 Golf View Dr, Suite 101Medford, OR 97504 (541) 779‑3797
Group practices
Medicare enrollment lists Tessa C. Johnston as a member of these groups (CMS data updated October 2, 2026).
- Cataract and Laser Institute of Southern Oregon PC5 clinicians in the group
- Horn Optometric, LLC4 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Medford
Clinicians with the same Medicare primary specialty in Medford, OR — not a recommendation.
Other clinicians in Cataract and Laser Institute of Southern Oregon PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | Ohio State University - College Of Optometry |
| Graduation year | 2006 (20 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1174620835 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians