Ka Yee So, OD
NPI 1770008609 · Optometrist · Oakland, CA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ka Yee So, OD is a Optometrist provider in Oakland, CA (NPI 1770008609).
Provider details
- NPI number
- 1770008609
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- OD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 33775TLG (CA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,408 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Problem Focused Exam of Visual System92012 | 375 | $118 |
| Established Patient Complete Exam of Visual System92014 | 338 | $165 |
| Photography of the Retina92250 | 309 | $48 |
| New Patient Complete Exam of Visual System92004 | 125 | $193 |
| Imaging of Optic Nerve92133 | 103 | $48 |
| Exam of Visual Field With Extended Testing92083 | 91 | $86 |
| Imaging of Retina92134 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 264 | 106 |
| Timolol Maleate | 177 | 60 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 43 | 20 |
| Brimonidine Tartrate | 41 | 19 |
| Cromolyn Sodium | 39 | 25 |
| Prednisolone Acetate | 16 | 11 |
| Dorzolamide Hcl | 13 | — |
| Erythromycin Basebrand: Erythromycin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$88 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-08-11
- Last updated
- 2020-05-18
- Certified
- 2020-05-18
Frequently asked questions
- What is Ka Yee So's NPI number?
- Ka Yee So's National Provider Identifier (NPI) is 1770008609, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ka Yee So's specialty?
- Ka Yee So is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Ka Yee So located?
- Ka Yee So's practice location on file with NPPES is 286 E 10th St, Oakland, CA 94606-2859.
- What is Ka Yee So's phone number?
- The practice phone number listed in the NPPES registry for Ka Yee So is (510) 879-1568.
- Does Ka Yee So accept Medicare?
- Ka Yee So is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ka Yee So's NPI active?
- Yes — Ka Yee So's NPI (1770008609) is active in the NPPES registry as of the last update on 2020-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.