Doctor profile · Federal record

Dr. On-Tat Lee, M.D.

Ophthalmology Physician (CMS: Ophthalmology) · Stockton, CA

  • NPI 1194084517
  • Accepts Medicare
  • MIPS 100.0 / 100 · 2023
  • 12 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1617 Saint Marks Plz Ste D
Stockton, CA 952076478
(209) 478-1797
fax (209) 478-1224

Credentials & registration

NPPES · NUCC
NPI registered
May 2012 — 14 yrs on file
Profile last updated
July 14, 2023
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207W00000X — NUCC code
State license (1)
California #A138659

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1194084517. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
3,768
Distinct HCPCS
10
Medicare allowed
$486,146
HCPCS Description Services Patients Avg allowed
92014 Established patient complete exam of visual system 1,013 1,002 $132
99213 Established patient office or other outpatient visit, 20-29 minutes 1,005 647 $92
92250 Photography of the retina 359 346 $39
92004 New patient complete exam of visual system 320 320 $155
92134 Imaging of retina 254 147 $42
92083 Exam of visual field with extended testing 222 218 $65
92133 Imaging of optic nerve 202 202 $35
J0178 Injection, aflibercept, 1 mg 144 21 $867
67028 Injection of drug into eye 110 34 $123
66821 Removal of recurring cataract in lens capsule using a laser 34 31 $345

In context: peer comparison

Among 5 peers in this city , average services per provider: 284. This provider delivers 13× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$269
Transactions
13
Manufacturers
9
Payer (manufacturer) Industry Txns Amount
Dompe US, Inc. 3 $55.47
Harrow Eye, LLC 2 $48.82
SUN PHARMACEUTICAL INDUSTRIES INC. 1 $34.38
Bausch & Lomb Americas Inc. 2 $30.51
Thea Pharma Inc. 1 $24.92
BIOTISSUE HOLDINGS INC. 1 $24.32
Genentech USA, Inc. 1 $20.40
Tarsus Pharmaceuticals, Inc. 1 $15.46
Amgen Inc. 1 $14.55

By nature of payment

Food and Beverage
$269

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,201
Patients
752
Total drug cost
$284,117
Drug Type Claims Patients Total cost
Latanoprost Generic 993 245 $15,507
Timolol Maleate Generic 199 74 $3,934
Brimonidine Tartrate Generic 180 48 $3,543
Prednisolone Acetate Generic 128 97 $4,601
Restasis (Cyclosporine) Brand 128 48 $101,613
Erythromycin (Erythromycin Base) Brand 81 61 $773
Rhopressa (Netarsudil Mesylate) Brand 71 19 $35,056
Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) Brand 69 23 $1,659
Dorzolamide Hcl Generic 59 20 $1,580
Cyclosporine Generic 56 26 $34,481

Frequently asked questions

Auto-generated from federal data
What is Dr. On-Tat Lee's medical specialty?
Dr. On-Tat Lee practices Ophthalmology Physician in Stockton, CA.
Where does Dr. On-Tat Lee practice?
Dr. On-Tat Lee practices at 1617 Saint Marks Plz Ste D, Stockton, CA 952076478. Office phone: 2094781797.
What is Dr. On-Tat Lee's NPI?
Dr. On-Tat Lee's National Provider Identifier (NPI) is 1194084517, issued by NPPES.
Does Dr. On-Tat Lee accept Medicare assignment?
Yes. Dr. On-Tat Lee accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. On-Tat Lee commonly perform?
Top Medicare-reported procedures in 2023: Established patient complete exam of visual system (HCPCS 92014); Established patient office or other outpatient visit (HCPCS 99213); Photography of the retina (HCPCS 92250). Source: CMS Medicare Physician & Other Practitioners file.