Quick answers
- Does Karen Kopiko accept Medicare assignment?
- Medicare's clinician data says Karen Kopiko may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does Karen Kopiko see?
- In 2024, CMS data shows 31 Original Medicare patients and 59 services for Karen Kopiko. This counts Original Medicare only and measures volume, not quality.
- What is Karen Kopiko's NPI number?
- 1629005939. 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 Karen Kopiko, 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 | 31 |
|---|---|
| Services billed to Medicare | 59 |
| Different services or procedures | 6 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Photography of the retina (92250)22 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)16 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)11 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 blood pressure75%
- High cholesterol74%
- Diabetes42%
- Arthritis39%
- Chronic kidney disease35%
Practice locations
Addresses where Karen Kopiko is enrolled with Medicare (CMS data updated October 2, 2026).
- 671 Parker AveRodeo, CA 94572 (510) 799‑4258
Group practices
Medicare enrollment lists Karen Kopiko as a member of this group (CMS data updated October 2, 2026).
- Bradley Upshaw Od Inc2 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in Bradley Upshaw Od Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Optometry school | Southern California College Of Optometry |
| Graduation year | 1999 (27 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1629005939 |
| 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