Doctor profile · Federal record

Dr. Ka Yee So, OD

Optometrist (CMS: Optometry) · Oakland, CA

  • NPI 1770008609
  • Accepts Medicare
  • MIPS 88.2 / 100 · 2023
  • 9 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
286 E 10Th St
Oakland, CA 946062859
(510) 879-1568
Mailing address
3140 Ellis St Apt 4
Berkeley, CA 947032443

Credentials & registration

NPPES · NUCC
NPI registered
August 2017 — 9 yrs on file
Profile last updated
May 18, 2020
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
152W00000X — NUCC code
State license (1)
California #33775TLG

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1770008609. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,263
Distinct HCPCS
8
Medicare allowed
$131,483
HCPCS Description Services Patients Avg allowed
92012 Established patient problem focused exam of visual system 350 248 $114
92014 Established patient complete exam of visual system 315 268 $160
92250 Photography of the retina 251 232 $47
92133 Imaging of optic nerve 106 102 $46
92083 Exam of visual field with extended testing 98 88 $81
92004 New patient complete exam of visual system 72 72 $188
92134 Imaging of retina 57 49 $51
76514 Ultrasound scan of cornea to determine thickness 14 13 $13

In context: peer comparison

Among 6 peers in Oakland Optometrist, average services per provider: 104. This provider delivers 12× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$88
Transactions
4
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Thea Pharma INC. 2 $39.05
Sun Pharmaceutical Industries INC. 1 $26.10
Tarsus Pharmaceuticals, INC. 1 $23.28

By nature of payment

Food and Beverage
$88

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
575
Patients
275
Total drug cost
$20,819
Drug Type Claims Patients Total cost
Latanoprost Generic 213 104 $7,129
Timolol Maleate Generic 158 64 $1,652
Cromolyn Sodium Generic 57 30 $1,045
Brimonidine Tartrate Generic 42 24 $1,051
Olopatadine Hcl Generic 42 24 $935
Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) Brand 34 18 $1,434
Dorzolamide Hcl Generic 15 11 $460
Rocklatan (Netarsudil Mesylat/Latanoprost) Brand 14 0 $7,113

Frequently asked questions

Auto-generated from federal data
What is Dr. Ka Yee So's medical specialty?
Dr. Ka Yee So practices Optometrist in Oakland, CA.
Where does Dr. Ka Yee So practice?
Dr. Ka Yee So practices at 286 E 10Th St, Oakland, CA 946062859. Office phone: 5108791568.
What is Dr. Ka Yee So's NPI?
Dr. Ka Yee So's National Provider Identifier (NPI) is 1770008609, issued by NPPES.
Does Dr. Ka Yee So accept Medicare assignment?
Yes. Dr. Ka Yee So accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ka Yee So commonly perform?
Top Medicare-reported procedures in 2023: Established patient problem focused exam of visual system (HCPCS 92012); Established patient complete exam of visual system (HCPCS 92014); Photography of the retina (HCPCS 92250). Source: CMS Medicare Physician & Other Practitioners file.